Principal software engineer jobs in Plainfield, NJ - 5,531 jobs

Welcome to Fi. We're a passionate team from Square, Google, TikTok, Peloton, Uber, and more working to transform the dog-human relationship. Our mission? Develop cutting-edge technology to revolutionize what it means to be a dog parent. Fi is leveraging our team's talent and expertise to improve the lives of the millions of dogs in the U.S. Real-time location tracking, activity, sleep and behavior monitoring - and that's just the beginning. The most exciting aspect of our work? Bridging the communication gap between dogs and humans. Imagine a world where everyone knows how their dog feels in real time and how to keep their best friend in good shape. That's the future we're building at Fi. If you're someone who thrives in innovative, collaborative work environments and feels strongly about helping dogs live longer, better lives, Fi could be the perfect fit. Join us in our pursuit of the “impossible,” or as we call it here “let me find a way,” to redefine the future of dog ownership together. Fi is looking for an Embedded Software Engineer! Fi is looking for an Embedded Software Engineer to design and build the firmware powering our next generation of connected collars - shaping the architecture, performance, and reliability of systems trusted by hundreds of thousands of dogs. You'll dive deep into connectivity, low-power optimization, and real-time processing, driving decisions that bridge hardware, software, and data into one seamless product experience. What You'll Do Firmware Development: Take a front-line role in designing, developing, and maintaining firmware for embedded systems, ensuring functionality, reliability, and performance optimization. Collaborative Problem-Solving: Work closely with cross-functional teams to integrate software with hardware components, troubleshoot issues, and optimize system performance. Code Review and Documentation: Conduct code reviews, document code changes, and ensure compliance with coding standards and best practices in firmware development. Testing and Validation: Develop test procedures and perform rigorous testing to validate firmware functionality and identify and resolve bugs or issues. Research and Innovation: Stay updated with emerging technologies, tools, and trends in embedded systems and contribute innovative ideas to enhance product capabilities. What You'll Bring Minimum of 4 years of hands-on experience in firmware/embedded software development Proficiency in the C and C++ programming languages, and an understanding of the differences between them. Additionally, experience with or eagerness to learn Python. Prior exposure to hardware interfaces, real-time operating systems (RTOS), and embedded systems design. Familiarity with debugging tools and methodologies for embedded systems. Experience with version control systems (e.g., Git) and issue tracking tools (e.g., Jira). Strong problem-solving abilities and the ability to work in a collaborative team environment, communicating effectively with hardware engineers, software developers, and other stakeholders. Understanding of low-level hardware interactions and device drivers. Experience in designing, developing, and testing firmware for microcontrollers and embedded systems. Why You'll Love Us Time to Recharge: Enjoy flexible PTO to take the breaks you need. Top-Notch Health Coverage: We've got your back (and teeth and eyes) with full medical, dental, and vision insurance. Wellness Perks:Free access to One Medical, Kindbody, and Talkspace to keep you feeling your best. Give Back to the Pups: Make tails wag with a $500 annual donation to a dog charity of your choice through our BarkBack Program. Free Fi Membership: Your furry best friend(s) get all the benefits of a Fi collar, on us! Love for Friends + Family: Share the Fi magic with loved ones through our gifting program. Salary: $150,000 - $200,000 a year The anticipated base salary range for this position is $150,000-$200,000. Actual compensation will vary based on multiple factors, including skills, experience, market conditions, and role scope, which may evolve during the hiring process. As a fast-growing Series B startup, Fi evaluates compensation opportunistically to align with the right candidate. This role is also eligible for equity compensation. Fi is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws. This policy applies to all employment practices within our organization, including hiring, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. Fi makes hiring decisions based solely on qualifications, merit, and our needs at the time. #J-18808-Ljbffr

Highrise | Brooklyn, NY (Hybrid) Highrise is a full-service Architecture, Expediting, and Development firm focused on complex New York City projects. We are seeking a high-level Senior Architect to join our in-house Brooklyn team and lead projects from design through construction. This is a hybrid position with 2-3 days remote and the remainder in our Brooklyn office. Role & Responsibilities Lead architectural design and documentation for new buildings and major alterations Manage Construction Administration (CA), including: RFIs, submittals, shop drawings, and field conditions Site visits and coordination with GC, consultants, and ownership Issue resolution during construction Ensure compliance with NYC Zoning, Building Code, Energy Code, and ADA Coordinate DOB filings and agency reviews Collaborate closely with ownership, expeditors, engineers, and development teams Review work and mentor junior staff Qualifications Licensed Architect preferred (NY license a strong plus) Proven experience in Construction Administration for NYC projects Deep working knowledge of NYC Code, Zoning, Energy, and ADA Strong development-driven project background Advanced proficiency in AutoCAD and Revit Able to independently manage projects from concept through CO What We Offer Very competitive compensation Generous PTO Hybrid schedule (2-3 days remote) Direct access to ownership and decision-making Long-term growth within a fast-growing firm High-quality NYC development projects 📍 Location: Brooklyn, NY 🗓 Schedule: Full-Time, Hybrid (2-3 days remote)

A local carpentry company in Brooklyn seeks a Lead Finish Carpenter with 3-5+ years of experience in cabinet installation and finish carpentry. The role emphasizes leadership, precision, and teamwork while working in high-quality residential kitchens. Candidates must possess a valid driver's license, reliable transportation, and professional-grade hand tools. This full-time position offers steady work and a respectful environment for skilled craftsmen. #J-18808-Ljbffr

A leading financial technology company in Seattle is seeking a Senior Product Design Lead for the Payments & Risk Platform. This role requires extensive product design experience and the ability to craft seamless financial workflows. You will collaborate with cross-functional teams, elevate design quality, and mentor junior designers. Candidates should have a strong portfolio, excellent systems thinking skills, and a passion for empowering small businesses through technology. The position offers competitive compensation and a hybrid working model. #J-18808-Ljbffr

A healthcare agency in Brooklyn is seeking an experienced Full Charge Controller to oversee all accounting and financial operations. This senior-level position is ideal for a detail-oriented professional with strong leadership abilities and at least 5 years of experience in healthcare finance. Responsibilities include managing financial reporting, budgeting, and compliance with healthcare regulations. Candidates must have a CPA certification and proven experience in team management. Competitive salary based on experience. #J-18808-Ljbffr

A transportation agency is seeking an experienced Assistant General Counsel III to manage tort litigation involving MTA agencies. This role requires expertise in appellate practice and significant experience in litigation management. The ideal candidate will develop strategies for complex cases, provide professional development for legal staff, and ensure compliance with legal standards. A law degree and Bar admission in New York are required, alongside extensive litigation and management experience. #J-18808-Ljbffr

Job Title: Anaplan Technical Lead Employment Type: Full-Time Work Arrangement: Hybrid - Work from the customer office in New Brunswick 3 days per week Required Experience & Qualifications 12+ years in enterprise planning/EPM; 7+ years hands‑on Anaplan model building with proven lead/architect responsibilities. Deep expertise in FP&A (budgeting/forecasting, driver-based models, Opex/Capex), Sales & Operations Planning, Demand/Supply, Inventory, Commissions. Mastery of Anaplan constructs: lists, numbered lists, hierarchies, modules, line items, LISS, summary methods, time/version settings, user filters, and New UX. Strong integration background (Anaplan Connect, CloudWorks/Data Orchestrator, REST APIs) and collaboration with ETL/DWH teams; practical SQL/Python skills a plus. Demonstrated ALM leadership (Dev-Test-Prod), change control, and governance. Excellent communication, stakeholder engagement, and able to translate complex requirements into clear, testable solutions. Certifications: Anaplan L1/L2/L3 Model Builder required. Maintain an Anaplan Data Hub for master/transactional data, metadata governance, and downstream spoke model provisioning. Regards, Jagannath Gaddam jagannath.gaddam@quantum Integrators.com **************************

Job Title: Software Engineer - Quadient Contract Duration: 12 Months Experience Required: 7-10 Years Job Description We are seeking an experienced Software Engineer - Quadient with strong expertise in Customer Communications Management (CCM) and Output Management solutions. The ideal candidate will have hands-on experience delivering end-to-end Quadient implementations, including template development, workflow automation, and enterprise integrations within a structured SDLC and Agile environment. Key Responsibilities Design, develop, and implement Customer Communications / Output Management solutions using Quadient. Perform analysis and rationalization of templates, including field mappings and creation of reusable, standardized templates. Develop and manage workflow automation scripts to optimize communication processes. Create schema definitions based on detailed data mapping documents. Build and maintain CCM templates with advanced pre-processing features such as: Sorting and grouping Dynamic content inserts Conditional logic Implement post-processing capabilities including: Barcode generation Document bundling Zip-code-based sorting Encryption of electronic documents Modify and enhance customer communications in alignment with evolving business requirements, including: Bulk and individual communications On-demand generation Postal packaging and delivery rules Enable customer communication preference capture and develop reporting and analytics around preferences. Integrate Quadient solutions with enterprise data systems and printer/output management solutions. Participate in full SDLC activities including requirements gathering, design, development, unit testing, deployment, and application support. Collaborate effectively within Agile/Scrum teams and contribute to sprint planning and delivery. Ensure compliance with quality, performance, and security standards, particularly within finance domain environments. Required Skills & Qualifications 7-10 years of overall software engineering experience. 4+ years of hands-on experience with Quadient development and output management, including Ricoh Process Director. Strong experience in Customer Communications Management (CCM) implementations. Proven expertise in template design, data mapping, workflow management, and automation scripting. Solid understanding of enterprise system integrations and print/output solutions. Strong SDLC knowledge with hands-on involvement across all phases. Experience working in Agile development environments. Prior experience in the Finance domain is required.

Founding Engineer We are looking for a Founding Engineer with 5+ years of experience to join our team and build the core operating system for private neurology practices. This person will be highly entrepreneurial, excited about working in a fast-paced startup environment, and passionate about making a significant impact on neurological care in the U.S. What will you be doing? Design, build, and maintain scalable B2B workflows for private practices. Architect the technical foundation, deciding between in-house builds and integrating best-in-class tools. Develop and maintain data infrastructure to generate actionable insights from clinical and operational data. Work directly with customers onsite to iterate on the platform and implement improvements based on real-world feedback. Define engineering standards, set the team culture, and help hire and mentor future engineers. Tech Stack Node, Typescript, React, SQL, AWS Candidate Profile Seniority: 5+ years of experience in backend software engineering, building B2B workflows, with Node/Typescript/React, SQL, and AWS. Work Experience: Startup experience, ideally 0 to 1 builds. Longevity and promotions at previous companies. Experience at a successful, scaling tech company. Hard Skills: Building B2B workflows from 0 to 1. Node/Typescript/React, SQL, and AWS experience. Soft Skills: Highly entrepreneurial, eager to learn startup operations. Miscellaneous: Work five days a week in New York City. Excited about the healthcare mission. About us The client, we're on a mission to bring back the private practice-the way healthcare used to be. We believe that when physicians have full autonomy over how they treat their patients, they're able to deliver better, more effective care. Our vision is to empower neurologists to launch, own, and operate their own practices, and in doing so, radically transform the future of neurological care in the US. Industry: Healthcare, Software Development Office Locations: New York City, New York About the team Small, founder led, high ownership team: Two co-founders work extremely closely with early customers and expect engineers to own problems end to end with very little hand-holding. Mistakes are owned as a team, not individually. Intense but transparent startup culture: In office five days a week in NYC, fast-paced and demanding, with an expectation of hard work and startup hours. Focused, mission driven, and execution oriented. Low ego, high agency environment: Direct communication, no politics, no individual hero culture. People are expected to raise their hand when blocked, collaborate deeply and care about the mission of improving patient outcomes. Benefits Fully paid health, dental and vision insurance, generous matching contributions to employee FSA/HSA, 401(k) with matching contributions and two-week company-wide winter break, plus additional paid time off.

Tryfacta is seeking a Senior Technical Lead for our client in Brooklyn, NY . This is a temporary contract assignment. If you meet the qualifications listed below and are interested, please Apply Now! The Senior Technical Lead will ensure successful technology delivery for the citywide MWBE Business Diversity Software implementation. This role requires a hands-on leader who can make complex technical decisions, collaborate with senior business and technical leaders, and guide technical teams across development, infrastructure, cybersecurity, and vendor/SI teams. The candidate will take ownership of delivering high-quality, well-architected solutions on time. Key Responsibilities Lead the design and implementation of solutions using custom development and COTS products. Oversee all phases of the development lifecycle: requirements, architecture, development, testing, and deployment. Provide technical direction and ensure adherence to standards and security compliance. Troubleshoot complex technical issues and maintain system stability. Collaborate with stakeholders to define goals, scope, and risks. Communicate technical details and project progress clearly. Work closely with Cyber Command to ensure compliance with security standards. Mandatory Skills & Experience Bachelor's degree in Computer Science or related field. 8+ years in software development and technical leadership. Hands-on experience with major programming languages (C#, .NET, Java, Python, C++, JavaScript, Go). Minimum 2 years of configuration/customization experience with MS Dynamics and/or Salesforce CRM. Strong understanding of cloud architecture (Azure or AWS). Knowledge of Agile methodologies (Scrum, Kanban, SAFe). Excellent communication and collaboration skills. Desirable Skills Experience with B2GNOW or similar Business Diversity Software. Strong business acumen and ability to translate requirements into functional specifications. Conflict resolution and negotiation skills. Familiarity with NYC Cyber Command standards.

A leading global bank is seeking a Sr. Analyst for Wealth Relationship Management in New York. The role involves building and deepening relationships with affluent clients, tailoring financial solutions to their needs. Candidates should have 5-8 years of experience, possess strong analytical and communication skills, and be familiar with financial planning software. Competitive salary and robust benefits package offered, including medical coverage and retirement plans. #J-18808-Ljbffr

A technology company is seeking a Senior Forward Deployed Engineer to build and deploy custom Model Context Protocol (MCP) solutions for enterprise customers. You'll work closely with clients to understand their requirements, solve unique integration challenges, and directly contribute to the development and iteration of the MCP platform. The ideal candidate has over 4 years of software engineering experience, is proficient in Python and TypeScript/JavaScript, and possesses excellent communication skills. This role offers competitive compensation and professional development opportunities. #J-18808-Ljbffr

A global consultancy firm is seeking a Lead Engineer - Digital Certificate Technology Services to drive engineering for digital certificate security solutions. This role involves overseeing a team, ensuring stable operations, and managing PKI systems to meet security standards. The ideal candidate should have extensive experience with IT security and PKI technologies along with strong leadership skills. Join us in shaping a better working world with innovative tech solutions. #J-18808-Ljbffr

A leading compensation platform provider in the New York area is looking for experienced engineers to architect scalable machine learning systems. The ideal candidate will have over 5 years of experience in ML model deployment, a solid understanding of ML fundamentals, and expertise in Python. This role is critical in driving revenue growth and evolving technical ML initiatives. The company offers competitive compensation including health benefits, equity, and a flexible work environment. #J-18808-Ljbffr

A cutting-edge AI firm located in San Francisco is seeking a Principal Research Scientist specializing in Electromagnetism. This role involves leading the architecture and training of an electromagnetic foundation model. The ideal candidate will have a PhD in a related field and proven experience with large foundation models and EM solvers. You will contribute to innovative AI solutions that tackle complex hardware challenges while being part of a passionate team dedicated to redefining hardware engineering. Competitive salary and comprehensive benefits included. #J-18808-Ljbffr

A decentralized social network is seeking a Protocol Engineer to design and implement smart contracts for their platform. This role involves collaborating with teams, ensuring security, and managing lifecycle processes. The ideal candidate should have over 4 years of experience with DeFi protocols and a strong understanding of EVM. This position offers a competitive remote-first work environment with benefits including equity and comprehensive healthcare options. #J-18808-Ljbffr

BeaconFire is based in Central NJ, specializing in Software Development, Web Development, and Business Intelligence; we are looking for candidates with a strong background in Software Engineering or Computer Science for a Java/Software Developer position. Responsibilities: ● Develop software and web applications using Java 8/J2EE/Java EE (and higher), React.js,Angular2+, SQL, Spring, HTML5, CSS, JavaScript and TypeScript among other tools; ● Write scalable, secure, maintainable code that powers our clients' platforms; ● Create, deploy, and maintain automated system tests; ● Work with Testers to understand defects opened and resolves them in a timely manner; ● Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review; ● Collaborate effectively with other team members to accomplish shared user story and sprint goals; Basic Qualifications: ● Experience in programming language JavaScript or similar (e.g. Java, Python, C, C++, C#, etc.) an understanding of the software development life cycle; ● Basic programming skills using object-oriented programming (OOP) languages with in-depth knowledge of common APIs and data structures like Collections, Maps, lists, Sets etc. ● Knowledge of relational databases (e.g. SQL Server, Oracle) basic SQL query language skills Preferred Qualifications: ● Master's Degree in Computer Science (CS) ● 0-1 year of practical experience in Java coding ● Experience using Spring, Maven and Angular frameworks, HTML, CSS ● Knowledge with other contemporary Java technologies (e.g. Weblogic, RabbitMQ, Tomcat, etc.) · Knowledge of JSP, J2EE, and JDBC · Compensation: $65,000.00 to $80,000.00 /year BeaconFire is an e-verified company. Work visa sponsorship is available.

A prominent health sciences university in Brooklyn, NY is seeking a Senior Interface Analyst. This full-time role involves analyzing and designing integration and supporting HL7 interfaces. Candidates should have a Bachelor's degree and extensive experience in healthcare technology integration. Strong troubleshooting, analytical, and mentoring skills are essential. The position offers opportunities to work with various healthcare systems and contribute to enhancing system usability. #J-18808-Ljbffr

Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who solve real problems and meet real customer needs. We are seeking Back End / Full Stack Software Engineers who are passionate about marrying data with emerging technologies. As a Capital One Software Engineer, you'll have the opportunity to be on the forefront of driving a major transformation within Capital One. TheMLX (Machine Learning Experience) organization at Capital Oneisan internal technology division responsible for building and delivering the platforms and tools that enable the entire company to develop and deploy well-managed, responsible machine learning and Generative AI solutions. What You'll Do: Lead a portfolio of diverse technology projects and a team of developers with deep experience in distributed microservices, and full stack systems to create solutions that help meet regulatory needs for the company Share your passion for staying on top of tech trends, experimenting with and learning new technologies, participating in internal & external technology communities, mentoring other members of the engineering community, and from time to time, be asked to code or evaluate code Collaborate with digital product managers, and deliver robust cloud-based solutions that drive powerful experiences to help millions of Americans achieve financial empowerment Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go, Open Source RDBMS and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of AWS tools and services Basic Qualifications: Bachelor's Degree At least 6 years of experience in software engineering (Internship experience does not apply) At least 1 year experience with cloud computing (AWS, Microsoft Azure, Google Cloud) Preferred Qualifications: Master's Degree 9+ years of experience in at least one of the following: Java, Python, Scala, Go, or Node.js 4+ years of experience with AWS, GCP, Microsoft Azure, or another cloud service 4+ years of experience in open source frameworks 1+ years of people management experience 2+ years of experience in Agile practices 2+ years of experience with Amazon SageMaker, Databricks, or another comprehensive ML platform Capital One will consider sponsoring a new qualified applicant for employment authorization for this position. The minimum and maximum full-time annual salaries for this role are listed below, by location. Please note that this salary information is solely for candidates hired to perform work within one of these locations, and refers to the amount Capital One is willing to pay at the time of this posting. Salaries for part-time roles will be prorated based upon the agreed upon number of hours to be regularly worked. McLean, VA: $229,900 - $262,400 for Sr. Lead Software Engineer New York, NY: $250,800 - $286,200 for Sr. Lead Software Engineer San Jose, CA: $250,800 - $286,200 for Sr. Lead Software Engineer Candidates hired to work in other locations will be subject to the pay range associated with that location, and the actual annualized salary amount offered to any candidate at the time of hire will be reflected solely in the candidate's offer letter. This role is also eligible to earn performance based incentive compensation, which may include cash bonus(es) and/or long term incentives (LTI). Incentives could be discretionary or non discretionary depending on the plan. Capital One offers a comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being. Learn more at the Capital One Careers website. Eligibility varies based on full or part-time status, exempt or non-exempt status, and management level. This role is expected to accept applications for a minimum of 5 business days.No agencies please. Capital One is an equal opportunity employer (EOE, including disability/vet) committed to non-discrimination in compliance with applicable federal, state, and local laws. Capital One promotes a drug-free workplace. Capital One will consider for employment qualified applicants with a criminal history in a manner consistent with the requirements of applicable laws regarding criminal background inquiries, including, to the extent applicable, Article 23-A of the New York Correction Law; San Francisco, California Police Code Article 49, Sections 4901-4920; New York City's Fair Chance Act; Philadelphia's Fair Criminal Records Screening Act; and other applicable federal, state, and local laws and regulations regarding criminal background inquiries. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at ************** or via email at RecruitingAccommodation@capitalone.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations. For technical support or questions about Capital One's recruiting process, please send an email to ********************** Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).