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Senior .net developer jobs in Setauket-East Setauket, NY

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  • Ruby on Rails Developer

    Tubman Technologies Inc.

    Senior .net developer job in Holtsville, NY

    Job Title: Ruby on Rails Developer Employment Type: Contractor Triplecom Inc. has an immediate long-term contract opportunity for a Ruby on Rails Developer to design, develop, and maintain high-performance, scalable application software. The role involves working across all layers of the technology stack and integrating solutions with internal and third-party systems. Responsibilities Design, develop, and test application software to ensure high performance, reliability, and scalability. Work across all layers of the technology stack to build robust and maintainable solutions. Utilize expert-level programming skills in Ruby on Rails, along with Java, MySQL, and related technologies. Apply object-oriented design patterns and application architecture standards. Analyze and interpret complex business and technical requirements to develop effective solutions. Implement and maintain automated testing practices to ensure code quality and system stability. Integrate applications with internal and third-party platforms using GQL/REST APIs, messaging systems, and ETL/data pipelines. Required Skills & Qualifications Strong experience in application design, development, and testing. Expert proficiency in Ruby on Rails across the full technology stack. Solid understanding of object-oriented design principles and application architecture. Ability to analyze complex problems and translate requirements into technical solutions. Experience with automated testing tools and practices. Hands-on experience integrating systems using GQL/REST APIs, messaging systems, and ETL/data pipelines. Proficiency in Java and MySQL.
    $85k-122k yearly est. 3d ago
  • Application Developer

    Medisys Health Network, Inc. 3.7company rating

    Senior .net developer job in Hicksville, NY

    Report accurately and timely to upper management project timelines and status of projects and tickets. Actively working with development team members, architects and related team leads to identify, trial and implement requested project. Owning the processes and leading improvement of the development related activities from design through to release. Working with other team members/leads to ensure processes support the effective transition of projects into and through delivery phases. Monitor Post development/deployment support activates. Administrating Development resources as databases and servers. REQUIRED EDUCATION: BS Degree or equivalent experience REQUIRED SKILLS AND /OR EXPERIENCE: Strong knowledge .Net (VB or C#) Development background/ 3 years minimum experience Strong knowledge of web development frameworks ASPnet, MVC and cross platform frameworks Strong Knowledge of MS SQL, my SQL, SSIS and Stored Procedures Knowledge of Epic API Integration a plus Mobile Development - MAUI (preferred) Good Written/Oral Communication Skills Good Interpersonal Skills Strong Project Management Skills Good Leadership Skills Strong Knowledge of the Clinical/Hospital Environment Strong Problem Solving & Analytical Skills
    $90k-119k yearly est. 1d ago
  • Lead Web Developer

    Open Systems Technologies 4.7company rating

    Senior .net developer job in White Plains, NY

    An insurance company is looking for a Web Developer Lead to join their team in White Plains, NY. Compensation: $150-170k Candidates must be local; no relocation (onsite 3 days/week) Frontend and Backend are equally important for this role. Responsibilities: Drive the end-to-end architecture, development, and delivery of scalable, secure web and mobile portals-including sophisticated front-end interfaces and robust back-end services Partner with cross-functional teams to deliver seamless, high-impact solutions Engineer portal capabilities for key insurance features such as policy management, claims, billing, and pension processing Embed industry-specific compliance and cybersecurity protocols, ensuring portals meet regulatory standards Lead Agile ceremonies, manage sprint cycles, conduct code reviews, and oversee CI/CD pipelines on containerized cloud platforms (AWS) Analyze customer insights, usage patterns, and performance metrics to drive continuous portal optimization Seamlessly integrate legacy systems, third-party APIs, and data sources into modern architectures Design and deploy microservices that connect internal and external systems, enabling dynamic data exchange and real-time functionality Stay at the cutting edge of web development, cloud technologies, and generative AI through ongoing research and innovation Qualifications: A Bachelor's degree in Computer Science, Information Technology, or a related discipline 7+ years of experience in web development, with at least 2 years in a lead role Strong proficiency in JavaScript, React, Angular, Node.js, and RESTful APIs Strong backend development skills in Node.js, Python, Java and databases (SQL, NoSQL) Angular, Python and Databases skills Experience with AWS or Azure, including ECS,Docker, Kubernetes, and other containerization tools Understanding of microservices, serverless architectures, and event-driven systems Understanding of cloud networking fundamentals, including VPCs, Subnets, and scalable architecture on AWS Experience in insurance operations, including claims, policy servicing, and customer support Exposure to GenAI /AI/ML services in AWS, DevOps tooling, and advanced container orchestration preferred
    $150k-170k yearly 2d ago
  • Lead PHP Laravel Developer

    Voto Consulting LLC

    Senior .net developer job in New Haven, CT

    Here are the job details: Job Role - Lead PHP-Laravel Developer Expr. Range - 7 - 10 years Must have-- Elastic Search, Laravel What will you be doing · Lead daily stand-up meetings, provide technical direction, and mentor team members to foster a culture of innovation and continuous improvement. Design data ingestion and consumption Apis at Laravel/Vapor. Design and optimize Elastic indices based on business requirements Built and designed utilities in Elastic console. Integrate and optimize Elastic Search for high-performance search capabilities. Ensure performance, quality, and responsiveness of applications. Understand & secure Elastic Search clusters to protect data integrity and privacy. Identify and correct bottlenecks and fix bugs. Maintain code quality, organization, and automation. Stay up to date with the latest industry trends and technologies. Collaborate with cross-functional teams to define, design, and develop new features. What are we looking for · Proven experience as a Laravel Architect or Lead. Must have 7-10 experience as a Developer Must hold 2-3+ years at the Principal level in order to be considered as a leader for this group. Strong proficiency in PHP along with Laravel framework. Must have some exposure or hands-on experience in working with Vapor for serverless deployment. In-depth knowledge of Elastic Search and integrations with Laravel/Vapor. Deep understanding of Elastic Search architecture, including cluster management and configuration. Proven experience of designing Elastic Search based solutions with Open Source. Proficiency in Elastic Search query language and plugins development. Knowledge of integrating Elastic Search with other components of the Elastic Stack like Logstash, Kibana etc. Extensive experience with Laravel configuration and projects deployments. Experience with log debugging tools like rollbar. Experience with version control systems (Git).
    $74k-103k yearly est. 2d ago
  • Senior Java Developer - Heavy DevOps

    Global Systems Search Inc.

    Senior .net developer job in Norwalk, CT

    Java Developer - Heavy DevOps (Onsite, South Norwalk CT) Type: Full-time • Permanent (No Sponsorship Available) Schedule: Onsite 5 days per week A confidential client in the security-focused software space is seeking a hands-on Java Developer with strong DevOps expertise to join their engineering team. This organization is building a suite of Zero Trust products and secure mobile/desktop applications, with the first major iOS release imminent and several follow-on components already in development. This is a high-impact hire working directly with the technical leadership team on core backend services, cloud infrastructure, secure storage frameworks, and new product iterations. Ideal for someone who thrives in a small, fast-moving environment, loves deep technical challenges, and wants to own significant architecture decisions. Responsibilities Develop and enhance Java server-side components supporting multiple security-driven applications. Build and manage a containerized cloud environment using Kubernetes and AWS (Azure acceptable). Implement multi-threaded Java services, messaging components, and high-performance backend systems. Own CI/CD pipelines, deployment automation, reliability engineering, and cloud orchestration. Contribute to architecture, performance tuning, and secure backend framework development. Collaborate closely with technical leadership to iterate on new features and expand existing product capabilities. Work fully onsite in South Norwalk, CT as part of a small engineering team. Required Experience Strong Java engineering background and significant DevOps experience - or - Deep DevOps expertise with solid Java programming capability Hands-on experience with: Kubernetes AWS (or Azure) Containerization (Docker, orchestration tooling) Multi-threading, messaging, concurrency in Java CI/CD pipelines and automation Cloud infrastructure and observability tooling Familiarity with secure application design, encryption, or Zero Trust principles is a plus. Comfort working directly with senior technical stakeholders in a high-ownership environment. Must be able to work onsite 5 days per week in South Norwalk Ideal Candidate Traits Highly intelligent, low-ego, deeply technical. Strong problem-solving skills and ownership mentality. Thrives in an early-stage, craftsmanship-oriented environment. Comfortable balancing both development and DevOps responsibilities.
    $95k-123k yearly est. 2d ago
  • AV Systems Programmer

    AV Pros Ny 4.3company rating

    Senior .net developer job in Hicksville, NY

    At AV Pros NY, we design, engineer, and integrate advanced audiovisual and technology systems for commercial, corporate, educational, and entertainment environments. Our team is passionate about delivering reliable, intuitive, and high-performance AV solutions that empower people to connect, communicate, and collaborate. We are seeking a skilled, hands-on AV Systems Programmer to join our growing engineering team in Hicksville, NY. The ideal candidate will have a strong background in AV programming, troubleshooting, and control systems integration, along with a passion for creating seamless, user-friendly experiences. Key Responsibilities Programming & Integration Program, test, and deploy AV control systems using Crestron, Q-SYS and Extron platforms. Develop automation code to ensure stable, efficient, and intuitive system operation. Design and implement network-based AV and AV-over-IP systems for commercial and enterprise environments. Build clean, user-focused graphical interfaces (GUIs) aligned with AV Pros NY design standards. Integrate UC platforms (Teams, Zoom, Webex), codecs, digital signage, and BYOD systems. Commissioning, Testing & Support Commission and validate newly installed AV systems, ensuring all components perform to design intent. Perform in-house and onsite testing, troubleshooting, and system verification. Utilize tools such as Crestron XIO Cloud and Q-SYS Reflect for monitoring and system management. Deliver end-user training, documentation, and quick-start guides for seamless adoption. Conduct preventive maintenance and implement updates to enhance performance and reliability. Collaboration & Documentation Collaborate with Project Managers, Design Engineers, and Field Technicians to transform system designs into fully functional programs. Produce and maintain accurate system documentation, including source code, configurations, and GUI screenshots. Write functional narratives and daily task reports for internal and client records. Mentor junior programmers and help establish company-wide programming standards. Innovation & R&D Burn-in programming in R&D Lab, test code and GUI functionality in a controlled environment. Develop and refine standard programming templates and commissioning workflows. Participate in testing new AV and network automation solutions. Networking Responsibilities Collaborate with the networking team to ensure secure, optimized connectivity across AV environments throughout the installation cycle. Qualifications Experience 5-10 years of experience in professional AV programming, commissioning, and integration. Proven expertise in Crestron, Q-SYS and Extron programming environments. Strong understanding of AV system design, signal flow, and networked AV (AV-over-IP). Experience with UC platforms, audio DSP configuration, and enterprise-level AV/IT systems. Experience programming and deploying Unifi network devices preferred. Education Certifications (Preferred) Crestron Certified Programmer Q-SYS Level 2 or higher Dante Level 1 & Level 2 CTS, CTS-I, or CTS-D Extron Control Professional Certification Nice to Have Bachelor's degree in Computer Science, Electrical Engineering, Audio Engineering, or related field preferred. Skills & Attributes Strong proficiency in programming/scripting languages such as SIMPL, Lua, Python, and HTML. Excellent problem-solving and analytical abilities with a sharp attention to detail. Proficiency with Microsoft Office (Word, Excel, Outlook). Exceptional organizational and documentation skills. Strong communication and client-facing abilities. Self-motivated and able to work both independently and as part of a team. Passionate about emerging AV and IT technologies. Results-driven mindset with a focus on quality and reliability. Why Join AV Pros NY Be part of a collaborative, innovative team that values craftsmanship, precision, and teamwork. Work on cutting-edge AV, IT, and automation projects for top-tier clients. Competitive pay, annual performance-based bonuses, and opportunities for certification and professional growth. Access to training, mentorship, and continuing education. Supportive company culture that rewards initiative, loyalty, and technical excellence.
    $73k-104k yearly est. 3d ago
  • Software Engineer

    JSG (Johnson Service Group, Inc.

    Senior .net developer job in Hauppauge, NY

    JSG is hiring a Software Engineer in Hauppauge, NY. Must be a US Citizen and work onsite. Salary range: $127K-$137K - Bonus Our charter is to develop fuel measurement, management and inserting systems for commercial and defense airframers. The Software Engineering team works closely with the Systems and Electronic Hardware Engineering teams to develop, qualify and certify these technologies as products for our customers in aerospace and industrial markets. Develop embedded software using C and/or model-based tools such as SCADE Develop high level and low level software requirements Create requirements-based test cases and verification procedures Perform software integration testing on target hardware using both real and simulated inputs/outputs Analyze software requirements, design and code to assure compliance to standards and guidelines Perform traceability analysis to customer specification requirements to software code Participate in software certification audits, e.g. stages of involvement (SOI) BS in Software Engineering, Computer Engineering, Computer Science or related field 5+ years of experience performing software development, verification and/or integration Strong technical aptitude with analytical and problem-solving capabilities Excellent interpersonal and communication skills, both verbal and written Ability to work in a team environment, cultivate strong relationships and demonstrate initiative Experience with C programming language Experience with model-based software development using SCADE Experience developing embedded software control systems Experience planning and executing projects using Agile software development methodology Experience managing requirements using DOORS or DOORS Next Gen (DNG) Experience with digital signal processing or digital filter design Experience with ARM microprocessors Experience with serial communication protocols (e.g. CANbus, ARINC, RS-232) Familiarity with aerospace (e.g., DO-178, DO-330, DO-331) and/or industrial (e.g., IEC 61508) software certification requirements Familiarity with functional safety standards such as ISO 13489, IEC 61508, IEC 62061, ISO 26262 or ARP4761Software Engineer to join our team. We are looking for a candidate who has working experience designing, developing and verifying embedded software in aerospace and/or industrial applications. The candidate should be familiar with industry-standard software development and design assurance practices (such as DO-178, ISO 26262, EN 50128, IEC 61508 or IEC 62304) and their application across the entire software development lifecycle. Johnson Service Group (JSG) is an Equal Opportunity Employer. JSG provides equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, disability, marital status, protected veteran status, or any other characteristic protected by law.
    $80k-107k yearly est. 3d ago
  • Senior Power BI & Systems Integration Developer - 5498

    Benchmark It-Technology Talent

    Senior .net developer job in Shelton, CT

    Senior Power BI & Systems Integration Developer Type: Contract-to-Hire or Full-time Our client, a leading precision manufacturing company in Connecticut, is seeking a Senior Power BI & Systems Integration Developer to join their IT team. This strategic role is central to modernizing ERP and MES systems, leading critical integration initiatives, and enhancing data-driven decision-making across the organization. The position offers the opportunity to influence IT strategy, optimize operational workflows, and deliver insights that directly impact business outcomes in a fast-paced, high-visibility environment. Key Responsibilities: Lead the design, development, and optimization of Power BI dashboards and advanced data models to provide actionable insights for senior management and operational teams. Drive ERP and MES integration projects, ensuring accurate real-time visibility into production, Work-In-Progress (WIP), and operational KPIs. Collaborate closely with business and IT leadership to define requirements, architect solutions, and implement high-impact initiatives. Required Skills and Experience: Senior-level expertise: 10+ years of experience in Power BI, SQL, and data integration technologies (APIs, .NET, Python, etc.). Proven experience with ERP systems (Infor LN preferred) and MES platforms (Aegis FactoryLogix preferred). Strong ability to translate complex business needs into technical solutions. Software engineering experience (e.g., .NET) is a strong plus. Exceptional communication skills, with experience presenting insights to executive leadership. On-site presence required; local candidates strongly preferred. This is a full-time position that may start as a contract-to-hire as well….great opportunity to make an immediate impact and grow with a company investing in its next phase of digital transformation. Must be a U.S. Citizen or Green Card holder (federal contract requirement) By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Benchmark IT, LLC and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy here: ************************************
    $88k-117k yearly est. 2d ago
  • Senior Backend Software Engineer (.NET/C#)

    Executive Alliance 3.2company rating

    Senior .net developer job in Garden City, NY

    Our client is an AI powered ecommerce/marketing software company. Their suite of products integrates Web Content Management, eCommerce, eMarketing, Social Media management, and Web Analytics. They are seeking a Backend Software Engineer to play a key role in building, integrating, and optimizing their flagship site search product. Will design, develop, and maintain API-first backend services using C#, NET, NoSQL, AWS technologies. Work closely with product and engineering teams to deliver secure, scalable, and efficient solutions. Design new features to work with AWS services in a cost-effective, automated and scalable manner. ***ONSITE in GARDEN CITY, NY*** ***DIRECT HIRE POSITION**** ***NO C2C or SPONSORSHIP*** This position is an excellent opportunity for someone who enjoys solving complex problems, working independently and in a collaborative environment, and has a strong interest in search technologies. Responsibilities Design, develop, and maintain API-first backend services using C# Work closely with product and engineering teams to deliver secure, scalable, and efficient solutions. Design new features to work with AWS services in a cost-effective, automated and scalable manner. Support ecommerce platform integrations. Collaborate with the infrastructure team on deployments, monitoring, and performance tuning. Contribute to technical design discussions and help drive architectural decisions. Write clean, maintainable, and testable code. Required Qualifications 3-10 years of professional software engineering experience MUST HAVE eCommerce or Search Technology experience. Examples: Lucene, Elasticsearch/OpenSearch, Algolia, Coveo, SearchSpring, Klevu, Bloomreach. BigCommerce, Optimizely Configured Commerce, Shopify, Magento/Adobe Commerce, WooCommerce, Shopware, Unilog. Must HAVE Strong proficiency in backend development. NET/C# strongly preferred Hands-on experience with cloud platforms (AWS preferred, GCP and Azure also accepted). Strong understanding of APIs, microservices, and integration patterns. Solid knowledge of relational databases and/or NoSQL databases. Ability to work on-site in Garden City, NY.
    $110k-145k yearly est. 4d ago
  • Senior Software Engineer (Full Stack), Data Analytics - Pharma

    Nylon Search-Recruitment and Executive Search

    Senior .net developer job in Ridgefield, CT

    $140-210K + Bonus (*At this time our client cannot sponsor or transfer work visas, including H1B, OPT, F1) Global Pharmaceutical and Healthcare conglomerate seeks dynamic and collaborative Lead Full Stack Software Engineer with 7+ years hands on front and back-end software developer experience designing, developing, testing, and delivering fully functioning Cloud-based, Data Analytics applications and backend services, to help lead application development from ideation and architecture to deployment and optimization, and integrate data science solutions like analytics and machine learning. Must have full stack Data Analytics experience, AWS Cloud, and hands-on experience in Data pipeline creation, ETL/ELT (AWS Glue, Databricks, DBT). This is a visible role that will deliver on key data transformation initiatives, and shape the future of data-driven decision making across the business. Requirements Hands-on experience in Data pipeline creation, ETL/ELT (AWS Glue, Databricks, DBT). Build and maintain robust backend systems using AWS Lambda, API Gateway, and other serverless technologies. Experience with frontend visualization tools like Tableau or PowerBI. Hands-on expertise in Agile Development, Test Automation, IT Security best practices, Continuous Development and deployment tools (Git, Jenkins, Docker, Kubernetes), and functional programming. Familiarity with IT security, container platforms, and software environments across QA, DEV, STAGING, and PROD phases. Demonstrated thought leadership in driving innovation and best practice adoption. Leadership & Collaboration: Strong communication, mentorship, and cross-functional teamwork. Responsibilities include: Application Development: Design, develop, and maintain both the front-end and back-end components of full-fledged applications using state-of-the-art programming languages and frameworks. Architecture Integration: Incorporate API-enabled backend technologies into application architecture, following established architecture frameworks and standards to deliver cohesive and maintainable solutions. Agile Collaboration: Work collaboratively with the team and product owner, following agile methodologies, to deliver secure, scalable, and fully functional applications in iterative cycles. Testing Strategy and Framework Design: Develop and implement comprehensive testing strategies and frameworks to ensure the delivery of high-quality, reliable software. For immediate consideration please submit resume in Word or PDF format ** AN EQUAL OPPORTUNITY EMPLOYER **
    $87k-113k yearly est. 4d ago
  • .NET/Sitecore Developer

    Laticrete International 4.0company rating

    Senior .net developer job in Bethany, CT

    Are you looking for a new challenge? Passionate about innovation? Want to work for a global company that values integrity, teamwork, and loyalty? At LATICRETE International, we aim to be the leading construction brand trusted globally for high-performance tile and stone installation systems and building finishing solutions. We've been in business for over 65 years, family-owned for three generations, and can be found in over 100 countries. The Hartford Business Journal even named us one of Connecticut's top family-owned companies in 2017! We don't just make innovative, industry-leading products. Our purpose is to improve the built world and the lives of those who build it. We strive to connect with, engage with and improve the lives of our employees, our customers, our partners, and the global communities in which we operate. We are seeking passionate and ambitious employees who want to make a difference not just within our organization, but within their communities, our industry, and the world. If that sounds like you, then what are you waiting for? Join the family and expand your horizons! Just some of our benefits: Medical Dental Vision 401k Tuition reimbursement 13 paid holidays in addition to paid vacation and sick time Flexible spending Life Insurance, AD&D and Supplemental Insurance Work under direction of leadership and senior development team members to gather requirements, design, develop and implement features for all corporate websites, web applications, systems integration middleware, hybrid mobile applications and CRM modules. Lead the implementation of enhancements to, and integrations with, the Microsoft Dynamics365 platform. Groom development backlog and work with leadership team to effectively prioritize incoming projects. Maintain department CI/CD build and release pipelines and participate in code review process. Function as subject matter expert for occasional software implementation projects. ESSENTIAL DUTIES AND RESPONSIBILITIES Additional duties and responsibilities may be assigned, as necessary. Sitecore CMS Development (40%) Coordinate with stakeholders and senior team members to design and develop enhancements, modules and components for our global Sitecore-based websites. Develop Blazor-based SPA components in concert with UX team members. Develop and enhance CMS integrations with external business systems including CRM, PIM, DAM and 3rd party dependencies. Apply organizational change-management process to incoming requests, ensuring that shared module changes impact global business units and content authors in an expected way. Produce reliable task estimates and feasibility analyses. Fully document all requirements, code and functionality; create training plans for content authors when applicable. .NET Development (60%) Work with stakeholders and technical team members to implement features for .NET web applications, web API, hybrid mobile apps and cloud-native systems integration workloads. Develop and maintain C# plugins and other custom logic for Dynamics365 CRM. Perform cloud cost analyses for greenfield project specs. Work with development, UX and QA team members to advise on the design of unit, functional and UI tests for all new features. Assist with upgrade path planning activities for department-managed software systems and dependent libraries. Coordinate with domestic and international IT departments and cloud environments to provision or manage infrastructure. Ensure alignment with corporate Application Lifecycle Management standards. Maintain build and release definitions within department CI/CD system. Enforce software application security standards for all department systems and applications. Participate in code reviews. REQUIRED SKILLS & QUALIFICATIONS To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Education and Experience: Undergraduate degree in computer science, software engineering or applicable discipline, or demonstrable professional experience. Sitecore Platform DXP or equivalent certification strongly preferred. Microsoft Dynamics 365 (CRM) Associate certification preferred. Specialized Skills and Experience: 3-5 years of Sitecore CMS development experience in mid-size, multi-site organizations. At least 5 years of .NET software development experience in a Microsoft environment. At least 5 years of hands-on development experience on web or web API applications using the following technologies: C#, ASP.NET MVC, REACT, HTML5/CSS/LESS, Visual Studio IDE. Hands-on experience with Blazor single page application development. Hands-on experience with Sitecore SXA, rendering host and headless configurations. Strong SQL-based relational database experience. Hands-on experience developing C# plugins for Microsoft Dynamics365 and integrating via Power Platform. Excellent written and verbal communication skills; ability to present to and negotiate with stakeholders as well as development team members. Demonstrable experience working with end-users, developers and internal stakeholders to generate specifications and communicate project deliverables and estimates. Working knowledge of hybrid mobile application development utilizing Microsoft stack technologies, Xamarin/.NET MAUI strongly preferred. Working knowledge of Microsoft Azure cloud platform, in particular with regards to creating and changing resources, and retrieving cost reporting and security analysis data. Working knowledge of software application security standards and best practices. Experience with Git version control system. Experience with Application Lifecycle Management platforms, Azure DevOps preferred. Ability to perform as part of a fast-paced development team with rapidly changing priorities. Team Cooperation - maintain positive, cooperative attitude with all employees of LATICRETE and all customers. Travel Requirement: 10%, domestic. Physical Requirements: Lift: Must be able to lift and/or carry a minimum of 25 pounds. Push/Pull: Must be able to push/pull 25 pounds. Standing: Must be able to stand at least 25% of the day. Sitting: Must be able to sit at least 50% of the day. #LI-BH1
    $91k-111k yearly est. Auto-Apply 60d+ ago
  • Senior React Frontend Developer / Lead Developer

    Treehouse Strategy and Communications

    Senior .net developer job in White Plains, NY

    Treehouse Strategy is a management consulting company that specializes in helping language companies around the world grow and get to the next level. We work with language companies on sales strategies, marketing plans, marketing initiatives execution (rebranding strategy, website redesign, social media management, SEO, etc.), technology advisory, and merger & acquisition advisory and brokerage. We have clients in Greece, France, UK, Argentina, Spain, the US, and Taiwan. Job Description We are looking for a strong Senior Front End Engineer who has strong experience with React. You will be a key member of our small frontend development team making important technical decisions. If you love to code, like to build APIs, and enjoy working on unique challenges within a collaborative team of developers to build meaningful products, then please apply. If you have experience with Scrum and can lead a small group of developers, that is a HUGE bonus. If you are a ‘uber developer', you will move to the front of the line. Essentially, ‘uber developer' is a jack of all trades who can do a little bit of everything. In addition to being a developer, this person is also a software architect and can help with some high level software design decisions. We also need the uber developer to do code review, provide some technical guidance to the junior developers, to help do some mentoring, support, and maybe a bit of training. Frameworks and Languages • JavaScript • React • Redux • Node • Work with design and other teams to develop new customer-facing features and maintain existing ones. • Create libraries, components and tools to ensure maximum performance with a top-notch user experience. • Improve development experience to delight your teammates. • Think like a product owner: what will delight users? What are the acceptable risks? • Help colleagues review and test code • What you will do: • o Build and maintain frontend architecture • o Collaborate with backend engineering, product, and design teams to write, test, and deploy code • o Create new and innovative features for our users • o Optimize pages for maximum speed • o Solve problems creatively and efficiently • Steer architectural discussions and build consensus among team members • Help drive best practices, collaboration, and process improvements • Diagnose and fix bugs and performance bottlenecks • Maintain code and write automated tests to ensure the product is of the highest quality • Mentor and coach fellow teammates What You'll Need • Significant production React or React Native experience on a medium to large scale application • Demonstrated experience mentoring other engineers and setting team best practices • Ability to write clean and well-tested TypeScript code • Passion for doing the right things, collaborating, and team building • Excellent verbal and written communication skills Additional Information Are you able to work the hours of Mon-Fri, 9 AM to 6 PM, Eastern Standard Time? Are you able and willing to work outside of traditional local hours, if need be? What is your level of English proficiency? What is your level of English proficiency in the CEFR scale or equivalent?
    $125k-182k yearly est. 5h ago
  • Application Developer / Report Writer

    RBC 4.9company rating

    Senior .net developer job in Oxford, CT

    RBC Bearings Incorporated (NYSE: RBC/RBCP) is a leading international manufacturer of highly engineered precision bearings, components and essential systems for the industrial, defense and aerospace industries. Founded in 1919, the Company is primarily focused on producing highly technical and/or regulated bearing products and components requiring sophisticated design, testing and manufacturing capabilities for the diversified industrial, aerospace and defense markets. We currently have 52 facilities, of which 37 are manufacturing facilities in ten countries and our market capitalization is approximately $8.9 billion. JOB TITLE/LOCATION: Application Developer / Report Writer Purpose & Scope: The Applications Developer / Report Writer works under the direction of the Business Intelligence (BI) manager. He/she provides technical support to resolve or assist in resolution of issues relating to ERP systems, reports, and other software applications. The position is responsible for interacting with end users, opening support tickets with software vendors, and identifying and implementing solutions for software application issues. He/she also provides input for the improvement of processes and procedures. This position may involve some database maintenance work, such as writing and executing SQL statements to extract data for business purposes or audits. Key Responsibilities: Provides training, troubleshooting, and support to software application users Coordinate the processing of incoming requests to IT Service via both telephone and e-mail to ensure courteous, timeliness, and effective resolution of end user software application issues Liaise with third parties and IT partners to resolve issues in a timely manner Implement minor changes to the ERP system Track and manage changes to the application software per defined Change Management process Record, track, and document the help desk request problem-solving process, including all successful and unsuccessful decisions made, and actions taken, through to final resolution Determine severity of incidents and efficiently escalate them using the incident management process Keep requester informed of progress Ensure resolution meets user requirements while meeting Service Level requirements Support a 24 x 7 manufacturing environment. Experience supporting Power BI and the Microsoft Power Sweet is preferred Ability to write SQL queries is required Microsoft Access/Excel/Word/PowerPoint expertise is required Outstanding customer service and interaction skills, as well as excellent verbal and written communications skills. Experience with Industry Standard ticketing system preferred Ability to work independently under general supervision within a demanding client centric environment. Education & Skills: High School Diploma or an associate's degree in an IT related field is preferred. 3+ years of experience of relevant work experience; 1+ years with Associates General knowledge of Windows Server (2019 and newer) operating system SQL Server query writing; intermediate High level of experience with desktop operating systems Excellent troubleshooting skills Excellent research skills Technical documentation skills Strong written and oral communication skills, possess the ability to interact with senior management and technical staff in a professional manner Preferred Experience: Visual Studio (VB.net / C#), Team Foundation Server, Power BI, SSRS, SSIS, SQL Server Ability, initiative, and accountability to execute broad assignments requiring minimal direction Moderate understanding of enterprise datacenter technologies including Networking, Security, TCP/IP and DNS We offer competitive compensation and excellent benefits, including Medical, Dental, and company matched 401k plan. Interested candidates may send resumes to: ************************** RBC Bearings is an Equal Opportunity Employer, including disability and protected veteran status.
    $81k-110k yearly est. Easy Apply 60d+ ago
  • Full Stack .Net Software Engineer

    Bridgeline Digital, Inc. 4.5company rating

    Senior .net developer job in Garden City, NY

    About the Role We are seeking a talented Full Stack .Net Software Engineer to join our on-site team in Garden City, NY. Bridgeline is hiring full stack engineers for roles in R&D, Services and Technical Support. Team matching is a key part of our hiring process once candidates complete initial screening and technical interviews. The ideal candidate has strong frontend and backend .Net development experience. You will play a key role in building, integrating, optimizing, and supporting our flagship site search product, HawkSearch. This position is an excellent opportunity for someone who enjoys solving complex problems, working independently and in a collaborative environment, and has a strong interest in search technologies. Responsibilities * Design, develop, and maintain API-first backend services using C# * Work closely with product and engineering teams to deliver secure, scalable, and efficient solutions. * Design new features to work with AWS services in a cost-effective, automated and scalable manner. * Support ecommerce platform integrations. * Collaborate with the infrastructure team on deployments, monitoring, and performance tuning. * Contribute to technical design discussions and help drive architectural decisions. * Write clean, maintainable, and testable code. Required Qualifications * 3+ years of professional software engineering experience. * Strong proficiency in full stack .net development * Hands-on experience with AWS * Strong understanding of APIs, microservices, and integration patterns * Solid knowledge of relational databases and/or NoSQL databases * Ability to work on-site in Garden City, NY. Strongly Desired Skills * Experience with search technologies such as: Lucene, Elasticsearch/0penSearch, Algolia, Coveo, SearchSpring, Klevu, Bloomreach. * Experience with ecommerce systems such as: BigCommerce, 0ptimizely Configured Commerce, Shopify, Magento/Adobe Commerce, WooCommerce, Shopware, Unilog. * Experience with LLM technology - model selection, prompt engineering, tuning, MCP. * Exposure to CI/CD pipelines and containerization (Docker, Kubernetes). * Strong troubleshooting and debugging skills. * Familiarity with JIRA & Confluence. * Salesforce experience is a plus. What We Offer * Competitive salary and benefits package. * Collaborative, growth-oriented work environment. * Opportunity to work with modern technologies and contribute to impactful projects.
    $84k-113k yearly est. 29d ago
  • Web Developer

    Chembular Manpower

    Senior .net developer job in Newtown, CT

    TFA Staffing Co.is a full service professional staffing agency.We specialize in the High Technology profession with talent in many different areas. A faster pace - The average professional at TFA Staffing completes 8 to 12 engagements in a year across numerous areas of practice and client industries. Large Enterprise Clients: Our consultants work on critical projects for some of the world's largest companies. We have a diverse set of clients with an emphasis in Professional and Executive Level, Financial Services, Information Technology, Health Care, Sales, Engineering, Industrial and Skilled Labor. We offer candidates complete confidentiality in their search and provide employers with simple, targeted searches from a database of qualified candidates through partnerships with afilliate companies. Job Description Job ID: 1919-014 Green card or citizen only No relocation Firm offers software and software-enabled services for the financial services industry including Institutional Asset Managers , Hedge Funds, and Insurance Firms. Description: Candidate will become part of the development team that supports and enhances the Web portals that delivers services and product for our client base. Responsibilites New Development Maintenance programming and new development If you would like to discuss this position please feel free to contact " in strictest confidence: Qualifications Green card or citizen BS Strong HTML/CSS/JavaScript/AJAX and JQuery Experience 2+ years of ASP.NET, C# Experience and MVC MS SQL or other Relational Database Experience Additional Information Please send resume/CV in word doc format ASAP to ~ [email protected] (P) ************
    $69k-92k yearly est. 5h ago
  • Web Application Developer

    Opexpert

    Senior .net developer job in Greenwich, CT

    My Client is headquartered in Greenwich, Connecticut and has over 1,200 employees in its offices in the USA, Switzerland, Canada, Hong Kong, UK, Australia, Hungary, Russia, Japan, India, China and Estonia. My Client is regulated by the SEC, FINRA, NYSE, FCA and other regulatory agencies around the world. Job Description 1. Design, develop and maintain responsive web applications for client's web-based account registration, account maintenance, tax, and compliance systems. 2. Typical projects will be focused on web client/web server development and include middleware and backend integration. 3. The majority of development will be using Java and Java Script with some exposure to PL/SQL, Python, Unix shell scripts and other general-purpose languages and tools. Qualifications 1. BS/MS Computer Science, Engineering, Mathematics 2. Strong knowledge of programming concepts and algorithms 3. Strong knowledge of Java or similar general purpose OO language. 4. Experience with browser markup and scripting (JScript, HTML5) 5. Experience with database backed web applications. 6. Experience with concurrency 7. Prior experience (including college projects) with interactive Web applications. 8. Familiar with web applications, concepts, and tools Additional Information All your information will be kept confidential according to EEO guidelines.
    $72k-95k yearly est. 5h ago
  • Software Engineer II

    North Atlantic Industries, Inc. 4.1company rating

    Senior .net developer job in Bohemia, NY

    North Atlantic Industries is a leading provider of embedded electronic solutions, specializing in rugged embedded computing, power supplies and motion simulation and measurement technologies. Our products and services are used by the military, aerospace, and industrial markets, helping to advance technology and protect the free world. NAI is proud to be recognized as a Top Workplace on Long Island! Our culture is very collaborative. We have team building events, company picnics, special event day and employee game room. Please visit our website at ******************** to see more about what makes us a unique place to work. Summary: Software Engineer II is responsible for assisting the development team with all aspects of software design and coding that align with the overall goals of our business. The duties of the Software Engineer II include attending design meetings, and depending on the software development assignments, this individual may be supporting the design and development of the Software Support Kit (SSK) package, supporting the design and development of the GUI-based QT sample program and GUI-based Windows test programs, or programs, or supporting the design and development of embedded software. Requirements Essential Role and Responsibilities: * Assisting the leads with all aspects of software design and coding. * Assisting with the designing, coding, and debugging of software * Attending and contributing to company development meetings. * Participating in code reviews to ensure adherence to coding standards and best practices. * Working on bug fixes and finding solutions in a timely and efficient manner * Expanding knowledge of emerging software technologies and apply them to current projects. * Mentoring software interns Qualifications and Educations Requirements: * BS in Computer Science or Electrical Engineering preferred and a minimum of 2 years of engineering and/or software programming experience. * Knowledge of coding languages like C, C++, C#, and/or Java * Knowledge of basic design principles such as Object-Oriented design and programming * Familiar with various operating systems (Windows, Linux, PetaLinux, VxWorks, Deos, etc). * Ability to work with hardware to develop and debug software which may include using tools like an oscilloscope, multi-meter, logic analyzer and JTAG probe. Other Skills and Abilities: * Strong oral and written communication skills to collaborate with other staff * Strong analytical and problem-solving skills * Self-motivated, and possess a high degree of curiosity and desire to learn new things * Good organizational skills Additional Helpful Skills and Abilities: * Proficiency with Python * Proficiency in unit testing, specifically unit testing in C (using tools like Unity, Cpputest, Google Test, Bullseye, etc.) * Proficiency with C# and C# related tools: C# Forms, C# .NET * Proficiency in building/running C code using compilers such as GCC, G++ * Proficiency with artificial intelligence and machine learning North Atlantic Industries offer comprehensive and competitive packages including: * Medical, Dental, and Vision Insurance * Company-provided Life and AD&D Insurance * Voluntary Supplemental Life Insurance * Long-term Disability Insurance * Flexible Spending Accounts (FSA) * Employee Assistance Program (EAP) * Tax-deferred 401K with company matching contributions. * Vacation, holidays, sick * Employee tuition reimbursement * Business casual dress environment * Schedule: M-F Day Shift North Atlantic Industries (NAI) is proud to be an Affirmative Action / Equal Opportunity Employer and is committed to providing equal employment opportunities for all persons in all facets of employment. We encourage females, minorities, protected veterans, and individuals with disabilities to apply for any open position for which they feel they are qualified. We also maintain a drug-free workplace and perform pre-employment substance abuse testing. As a federal government contractor, in accordance with applicable laws, regulations, and Executive Orders, NAI is required to develop annual Affirmative Action Plans (AAPs). Any employees or applicants who wish to review the Affirmative Action Plan (AAP) for Protected Veterans and Individuals with Disabilities can contact us by sending an email to *********** or by calling Human Resources at ************. If you are a disabled individual or a disabled veteran and require a reasonable accommodation in applying for any posted position, please contact Human Resources at the number referenced above. EEO is the Law, applicants and employees of NAI are protected under Federal law from discrimination. Click here to learn more about your rights. Salary Description $78,000 - $105,000
    $78k-105k yearly 42d ago
  • Software Developer 830068

    Capstone Search Advisors

    Senior .net developer job in Greenwich, CT

    Fairfield County Hedge Fund is seeking a Senior Software Developer to join their Core Development which is responsible for building in-house systems and integrating and customizing third-party applications essential to the firm's operation. They are currently modernizing their proprietary on-premises systems into cloud-native, web-based solutions. This is a great opportunity for a talented backend developer to make a major impact on critical financial software used across the firm. This role Primary Responsibilities: • Build and maintain custom .NET applications including STP trade platform, portfolio management tools, and front-office modules • Drive modernization efforts by contributing to cloud and web transformation initiatives • Integrate and extend third-party platforms like Workday and Salesforce • Collaborate with business and project teams to translate requirements into scalable solutions • Troubleshoot performance issues and implement robust fixes Qualifications/Skills Required: • 7+ years in software development with C# and Web API • Strong SQL experience and relational database design • Experience with DevOps, CI/CD pipelines, Terraform, and Git • Strong academic track record with degree in Computer Science or related field • Excellent problem-solving and communication skills • Self-motivated, quick learner, and demonstrated ability for learning new technology Preferred: • Experience in Azure cloud development • Familiarity with Databricks or Snowflake • Knowledge of messaging technologies such as RabbitMQ, Kafka, or Azure Service Bus • Background in modernizing and transitioning software architecture and technology • Understanding of Workday and/or Salesforce • Front-end development experience using React • Scripting skills in Python and PowerShell • Awareness of accounting and finance fundamentals and work experience in the financial services industry • Proficiency in Excel automation including building functions, macros, and custom add-ins
    $74k-97k yearly est. 60d+ ago
  • Software Engineer - Early Career (USA)

    Trexquant 4.0company rating

    Senior .net developer job in Stamford, CT

    Trexquant is a growing systematic fund at the forefront of quantitative finance, with a team of world-class researchers and engineers. As we continue to expand our trading operations, we are investing heavily in building the next generation of our quantitative research & trading platform. We are seeking an Early Career Software Engineer with strong programming skills to join our engineering team. In this role, you will work closely with experienced engineers and quantitative researchers to develop the infrastructure that powers systematic trading, including data pipelines, back testing tools, and execution systems. You will have the opportunity to contribute to greenfield development projects, where you'll help build new systems from the ground up, driving innovation and scalability in our technology stack. Responsibilities * Full lifecycle development of low-latency, high-throughput research and trading systems using C++, C, Java, or Rust * Build and optimize data processing pipelines to ensure reliable access to large, high-quality datasets. * Assist in developing tools for back testing, model training, and strategy evaluation. * Collaborate with researchers and traders to deliver technical solutions that improve research productivity and trading performance. * Participate in code reviews, testing, and documentation to maintain high-quality standards. * Stay abreast of emerging technologies, tools, and best practices, bringing innovative ideas to continuously improve our systems.
    $77k-109k yearly est. 60d+ ago
  • Web Developer

    Connexio

    Senior .net developer job in North Hempstead, NY

    We are looking for an outstanding Web Developer to be responsible for the coding, innovative design and layout of our website. Web developer responsibilities include building our website from concept all the way to completion from the bottom up, fashioning everything from the home page to site layout and function. Responsibilities Write well designed, testable, efficient code by using best software development practices Create a website layout/user interface by using standard HTML/CSS practices Integrate data from various back-end services and databases Gather and refine specifications and requirements based on technical needs Create and maintain software documentation Be responsible for maintaining, expanding, and scaling our site Stay plugged into emerging technologies/industry trends and apply them into operations and activities Cooperate with web designers to match visual design intent Requirements Proven working experience in web programming Top-notch programming skills and in-depth knowledge of modern HTML/CSS Familiarity with at least one of the following programming languages: PHP, ASP.NET, Javascript or Ruby on Rails A solid understanding of how web applications work including security, session management, and best development practices Adequate knowledge of relational database systems, Object Oriented Programming and web application development Hands-on experience with network diagnostics, network analytics tools Basic knowledge of Search Engine Optimization process Aggressive problem diagnosis and creative problem-solving skills Strong organizational skills to juggle multiple tasks within the constraints of timelines and budgets with business acumen Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques. BS in computer science or a related field
    $65k-87k yearly est. 60d+ ago

Learn more about senior .net developer jobs

How much does a senior .net developer earn in Setauket-East Setauket, NY?

The average senior .net developer in Setauket-East Setauket, NY earns between $75,000 and $138,000 annually. This compares to the national average senior .net developer range of $72,000 to $124,000.

Average senior .net developer salary in Setauket-East Setauket, NY

$102,000

What are the biggest employers of Senior .NEt Developers in Setauket-East Setauket, NY?

The biggest employers of Senior .NEt Developers in Setauket-East Setauket, NY are:
  1. Itnova
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