Ruby on Rails Developer
Web 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.
Shopify Web Developer (E-Commerce & UI/UX) - Luxury Marketplace
Web developer job in New York, NY
Compensation: $80K - $120K (Full-Time) | $50-$100/hr (Contract)
Experience Level: Mid to Senior (3-6+ years in Shopify Development, UI/UX, and E-Commerce)
About Us
We are a leading secondary market dealer of high-end luxury watches, specializing in Patek Philippe, Audemars Piguet, Richard Mille, and Rolex. Our goal is to be the #1 most trusted and competitive luxury watch marketplace, ensuring a seamless buying experience for high-net-worth clientele. To achieve this, we are looking for a Shopify Web Developer who can combine front-end development, UI/UX design expertise, and Shopify customization to enhance our e-commerce platform. You'll work closely with our Head of Digital Product & E-Commerce to implement high-converting design elements, improve site speed, and optimize the overall digital experience. If you are a Shopify expert with a passion for luxury e-commerce, UI/UX design, and coding high-performance, conversion-driven web experiences, this role is for you.
What You'll Do
Develop & Maintain Shopify Customizations
Build and maintain custom Shopify themes with clean, efficient code.
Implement Shopify Liquid, JavaScript, HTML, and CSS to create new site features and design elements.
Develop custom landing pages & sections tailored for lead generation and high-ticket sales.
Enhance UI/UX & Improve Conversion Optimization
Work closely with the Head of Digital Product to implement UI/UX improvements that increase conversions.
Optimize mobile-first design for seamless high-end shopping experiences.
Implement A/B testing experiments to refine product pages, form placements, and checkout flows.
Improve Site Performance & Speed
Optimize page load speeds, lazy loading, and image compression to enhance site performance.
Reduce code bloat and improve Shopify site architecture for better user experience.
Troubleshoot bugs, checkout errors, and performance bottlenecks.
Support Data-Driven Decision Making
Integrate heatmaps, session tracking, and analytics tools to help improve the shopping journey.
Provide insights on user behavior and site interactions to drive better product and design decisions.
Implement lead capture tracking & attribution tools to measure the effectiveness of campaigns.
What You Bring to the Table
3-6+ years in Shopify development, UI/UX design, and e-commerce optimization.
Proficiency in Shopify Liquid, JavaScript, HTML, CSS, and front-end frameworks.
Experience in building custom Shopify themes & modifying existing themes.
Strong UI/UX design skills, with a focus on optimizing user flows and mobile experience.
Experience with Shopify Plus, API integrations, and performance optimizations.
Familiarity with conversion optimization, heatmaps, and A/B testing tools.
Bonus: Passion for luxury watches, high-end retail, or collectible marketplaces.
Why Join Us?
Direct impact on improving the digital experience for a $20B+ luxury market.
Competitive salary, performance bonuses, and career growth opportunities.
Work with a fast-growing luxury brand catering to ultra-high-net-worth clients.
Opportunity to build a best-in-class Shopify experience for high-ticket sales.
Lead Web Developer
Web 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
Lead/Senior Developer
Web developer job in New York, NY
Senior Developer / Lead - Finance & Treasury Integrations Type: Permanent, Full‑time Salary: $160,000 - $180,000 per year We're looking for a Senior Developer / Lead to join a global technology team, focusing on Finance, Treasury, and Accounting integrations. This role is central to connecting corporate and trading systems with platforms such as NetSuite and Kyriba, ensuring smooth and accurate data exchange across Finance, Treasury, Risk, and Compliance. You'll partner closely with senior stakeholders to deliver solutions that improve transparency, automation, and governance of financial data.
Technical Skills
Strong background in Python development, with experience in data transformation and API design.
Hands‑on expertise with AWS services (S3, EC2, Kubernetes, FastAPI, CloudWatch).
Solid knowledge of SQL (Postgres, Snowflake, or similar).
Familiarity with REST APIs, OAuth, JSON/XML, and CI/CD pipelines.
Understanding of finance and accounting processes (GL, reconciliations, cash management)..
Previous exposure to financial services, commodity trading, or corporate treasury is a essential.
Degree in Computer Science, Engineering, Finance, or related field.
If this role is of interest to you please apply with an up to date version of your cv.
Principal Front-End Developer - Trading Platforms
Web developer job in New York, NY
Job Title: Principal Front-End Developer - Trading Platforms
Employment Type: Full-Time, Direct Hire
About the Role
We're seeking a highly skilled Principal Front-End Developer to lead the development of sophisticated trading platforms and financial systems. This role is ideal for a seasoned technologist with deep experience in financial markets and a passion for building scalable, high-performance applications that support fund administration and regulatory compliance.
Responsibilities
Architect and develop front-end components for trading and fund administration platforms
Collaborate with cross-functional teams including product managers, traders, and compliance officers
Implement CI/CD pipelines using tools like Jenkins and Azure DevOps
Design and deploy microservices-based applications on Azure Cloud and Data Bricks
Ensure adherence to financial regulations and data governance standards
Lead code reviews, mentor junior developers, and champion engineering best practices
Required Skills & Experience
10+ years of software development experience, with a strong focus on front-end systems
Expert-level proficiency in C#, .NET, .NET Core, SQL
Hands-on experience with CI/CD tools (Jenkins, Azure DevOps) and unit testing frameworks
Proven experience with microservices architecture, Azure Cloud, and Data Bricks
Deep understanding of financial instruments, trading workflows, and regulatory requirements
Industry experience with platforms such as Geneva, Orchestrade, Bloomberg, or FlexTrade
Demonstrated success in developing fund administration and/or financial systems
Preferred Qualifications
Experience with containerization (Docker, Kubernetes)
Familiarity with FIX protocol and market data integration
Strong analytical and communication skills
Agile development experience
Senior Web Application Developer
Web developer job in New York, NY
Senior Full Stack Web Developer - React
GNOMI Enterprise is building the future of intelligent information. As a News AI Agent, GNOMI delivers real-time, personalized news and insights using the most advanced large language models, proprietary data streams, and agent-based infrastructure. We serve the information needs of enterprise users who demand speed, context, and clarity.
We are seeking an experienced React Web Developer with a strong foundation in front-end development and a passion for building high-quality user interfaces. The ideal candidate will bring a collaborative mindset, technical excellence, and a commitment to delivering exceptional digital experiences.
Key Responsibilities:
Design, develop, and maintain scalable features using React.js
Build reusable and maintainable components with React Hooks and modern JavaScript practices
Collaborate with designers to implement pixel-perfect UI based on Figma mockups
Manage application state using Redux, Context API, or comparable tools
Integrate frontend components with RESTful and GraphQL APIs
Optimize applications for speed, accessibility, and responsiveness across devices
Debug, troubleshoot, and resolve issues across various browsers and screen sizes
Work closely with engineering, design, and product teams in an Agile environment
Write clean, well-tested code with unit and integration test coverage
Participate in architectural discussions and contribute to front-end scalability initiatives
Required Qualifications:
Minimum of 5 years of professional experience developing modern web applications
At least 3 years of production-level experience with React.js
Comprehensive understanding of React.js and the contemporary JavaScript ecosystem
Demonstrated expertise in building performant, accessible, and responsive interfaces
Strong grasp of browser behavior, optimization techniques, and debugging tools
Proficiency in Git-based workflows and Agile development methodologies
A proactive, ownership-driven approach to feature development and deployment
Excellent communication and collaboration skills in cross-functional teams
Experience working in fast-paced, iterative development environments
Bachelor's degree in Computer Science or equivalent practical experience
Primary Technologies:
React.js (Hooks, Context API, React Router)
Next.js
TypeScript, JavaScript (ES6+), HTML5, CSS3
Redux or equivalent state management solutions
Tailwind CSS, styled-components
REST and GraphQL APIs
Git, Webpack, npm, VS Code
Why GNOMI:
GNOMI is not just another AI company; we're building a critical layer of real-time intelligence for the modern enterprise. As Senior Native iOS Engineer, you'll be on the front lines of redefining mobile news and knowledge access through next-generation agentic interfaces.
Compensation:
Salary Range: $150,000 - $210,000 (final offer based on experience and expertise).
Discretionary bonus.
Equity: Equity opportunities available as part of the total compensation package.
Benefits: Comprehensive health, dental, and vision insurance.
Application Developer
Web 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
Founding Robotics Software Engineer
Web developer job in New York, NY
Salary Range: $150,000 - $250,000 + Equity
Working Arrangement: Full Time - On-Site
Cubiq is currently representing an award-winning early-stage Y Combinator-backed start-up in their pursuit to find a founding Robotics Software engineer, to enable the deployment and growth of their Natural Language Robotics Interface.
This company is still very small, headed up by 2 ex-Google AI engineers, who were instrumental in the development of Claude. They're looking to add a Software engineer who can implement their AI algorithms into any and all types of robots to be easily controlled by anyone.
The role will see the successful candidate becoming a key part of these plans and the company as a whole as they continue to grow. You will be building the core infrastructure and services for the system, Designing APIs and interfaces between the AI models, hardware, and human operators. Working across the stack from Robot-facing services to real-time agent orchestration.
This is an on-site position in central New York, and is offering a salary between $140,000 -$220,000 and can stretch for the right candidate. There is full healthcare coverage and a 401K match. But the equity on offer is the real benefit to this role.
The right candidate will need the following experience:
Previous experience working with an Embodied AI system
2+ years of Software experience working with an LLM, RAG, or VLM
Strong Python experience
Experience at a scaling real-time system, data pipelines or working on integrating AI/ML models
High Agency and good communication skills
If you have the experience mentioned above, apply immediately! Interviews are already happening!
Lead API Developer
Web developer job in New York, NY
Staff Engineer / API Lead - Mission-Driven AI Startup (New York City) Want to own the core APIs powering an AI product used by millions around the world? A fast-growing language learning startup (name currently under wraps 🤫) is gearing up for a pivotal 2025 and needs a Staff Engineer / API Lead to architect, build, and scale the heart of their platform.
If you're the kind of engineer who loves big technical challenges, thrives in high-output environments, and wants your work to have real human impact - this is the place.
What You'll Do
Own the design and evolution of the company's core APIs, from architecture to implementation
Build scalable, reliable backend services that power real-time, AI-driven learning experiences
Lead technical direction across teams; set standards, review designs, mentor engineers
Drive platform performance, observability, cost optimisation, and cloud infrastructure decisions
Collaborate directly with product and engineering leadership to shape the roadmap
Stay hands-on: writing high-impact code, improving systems, and solving tough technical problems
Why This Role Is Unique
You will literally own the backbone of the platform-the APIs that everything else relies on
Join during a defining hyper-growth phase where technical decisions have huge leverage
High autonomy, high trust, and the chance to influence engineering culture from the ground up
Direct collaboration with founders and engineering leadership
Mission-first environment focused on unlocking learning for kids everywhere
What You Bring
7-10+ years of backend or distributed systems experience, ideally at scale
Deep expertise with AWS, including services, architecture patterns, and cost-aware design
Strong experience with Kubernetes, containers, and modern cloud infrastructure
Proven experience designing and scaling APIs (REST, GraphQL, gRPC-any production-grade interface)
Strong coding skills in Python, Go, or similar backend languages
Experience influencing or leading technical direction across teams
Startup-ready mindset: ownership, speed, and a bias for high-impact execution
Bonus: Familiarity or interest in Rust for systems-level or performance-sensitive components
Who You Are
A strategic thinker who still loves writing code
Someone who enjoys architecting complex systems and making them elegant
A force multiplier-your impact makes the whole team faster and better
Comfortable in fast-paced, ambiguity-heavy environments
Drawn to mission-driven work where the results matter
Location & Eligibility
Hyrbid in New York City (this role requires close collaboration with the founding and engineering teams)
Full US work authorization required (no sponsorship)
If you want to build core systems, shape engineering standards, and see your work translate into life-changing tools for kids learning languages-this is the opportunity.
Software Engineer
Web 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.
Java Fullstack Developer
Web developer job in New York, NY
Net2Source is a Global Workforce Solutions Company headquartered at NJ, USA with its branch offices in Asia Pacific Region. We are one of the fastest growing IT Consulting company across the USA and we are hiring
"Java Fullstack Developer
" for one of our clients. We offer a wide gamut of consulting solutions customized to our 450+ clients ranging from Fortune 500/1000 to Start-ups across various verticals like Technology, Financial Services, Healthcare, Life Sciences, Oil & Gas, Energy, Retail, Telecom, Utilities, Technology, Manufacturing, the Internet, and Engineering.
Position: Java Fullstack Developer
Location: NYC, NY ( Onsite ) - Only Locals
Type: Contract
Experience Level -10+ Years
Job Description
10+ Years of Java experience.
Key Skills are Java, Spring Boot, Micro Services with exposure to CI/CD and AWS.
Should be good with Data structures and Algorithm.
Should be good with OOPS concept .
Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
Experience with SDLC and Agile methodologies
Proficiency in version control tools such as Maven, Jenkins and GitLab/GitHub
Madhukar Singh
Email: ***********************
HEDGE FUND BACKEND DEVELOPER (C#) - Not open to sponsorship or Consultants
Web developer job in Stamford, CT
BACKEND SOFTWARE DEVELOPER (C#) - Core Dev Team
FTE | Stamford, CT | Hybrid
Our client is a leader in global credit investing. With a dedicated team of 350, the firm oversees ~$40 billion of investable assets through a comprehensive credit platform that includes direct lending, structured credit, and special situations investment strategies.
Core Dev Team Overview:
The Core Development team is at the forefront of innovation, responsible for building in-house systems and integrating and customizing third-party applications essential to the firm's operation. We are currently modernizing our proprietary on-premises systems into cloud-native, web-based solutions. This is a great opportunity for a talented backend developer to join our dynamic, fast-paced team and make a major impact on critical financial software used across the firm. This role offers exposure to cutting-edge technologies, cross-functional collaboration, and opportunities to influence architecture decisions.
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
Software Engineer
Web developer job in New York, NY
We are seeking a highly skilled and motivated Software Engineer to join our growing technology team. The role is responsible for designing and coding enhancements, features, and fixes for existing applications, as well as building new applications, including initiatives involving Generative AI and agentic solutions. The engineer will provide expert-level support, contribute to system strategy and planning, and collaborate with internal teams, stakeholders, and external vendors to deliver technology solutions.
Base: 200k-300k
All in total comp including bonus: 300k-450k
Responsibilities
Develop, integrate, and support custom and vendor technology solutions for business processes.
Collaborate with business analysts, support, and infrastructure teams to implement end-to-end solutions.
Create and maintain detailed functional and technical user stories.
Design, develop, train, and support Generative AI solutions.
Maintain documentation, conduct knowledge transfer sessions, and participate in peer review of designs.
Experience Level
4+ years of IT development experience, including design, implementation, testing, and documentation of modern web applications (Python, React/Angular, JavaScript, .NET, cloud platforms).
Experience building RESTful APIs and backend integrations.
Exposure to Generative AI applications, agentic solutions, and LLM frameworks is a plus.
Solid RDBMS and SQL knowledge; familiarity with data warehousing tools is preferred.
Experience with DevOps and CI/CD pipelines (Azure DevOps, GitHub, Jenkins, Maven, Kubernetes).
Knowledge of secure development practices and API security.
Experience in Agile/Scrum development methodologies.
Strong analytical, problem-solving, and system design skills.
Willingness to participate in on-call rotations and after-hours support.
The Phoenix Group Advisors is an equal opportunity employer. We are committed to creating a diverse and inclusive workplace and prohibit discrimination and harassment of any kind based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. We strive to attract talented individuals from all backgrounds and provide equal employment opportunities to all employees and applicants for employment.
Java Developer
Web developer job in New York, NY
Must Have :: FAANG Companies exp
AWS Development experience is must.
Job Responsibilities
Executes creative software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems
Develops secure high-quality production code, and reviews and debugs code written by others
Identifies opportunities to eliminate or automate remediation of recurring issues to improve overall operational stability of software applications and systems
Proactively identifies hidden problems and patterns in data and uses these insights to drive improvements to coding hygiene and system architecture
Contributes to software engineering communities of practice and events that explore new and emerging technologies
Adds to team culture of diversity, opportunity, inclusion, and respect
Required qualifications, capabilities, and skills
Formal training or certification on software engineering concepts and 9+ years applied experience and hands-on practical experience delivering system design, application development, testing, and operational stability
9+ years of experience in full-stack Java development within team (Agile/Scrum) environments and large implementations
Mandatory hands-on experience with core Java, Spring, Kafka and REST services
Leverage AWS services, including ECS, EKS, and Lambda, to design, deploy, and manage scalable and efficient cloud-based applications within the software development lifecycle
Utilize advanced tools like Copilot and Codeium to streamline development processes and improve productivity.
Excellent knowledge and experience in System Design, Domain Driven Design, and Microservices
Experience with architectural patterns for scalability, high availability, performance, and disaster recovery
Hands-on practical experience in system design, application development, testing, and operational stability
Experience in developing, debugging, and maintaining code in a large corporate environment with one or more modern programming languages and database querying languages
Overall knowledge of the Software Development Life Cycle
Solid understanding of agile methodologies such as CI/CD, Application Resiliency, and Security
Demonstrated knowledge of software applications and technical processes within a technical discipline (e.g., cloud, artificial intelligence, machine learning, mobile, etc.)
Practical cloud native experience
Software Engineer
Web developer job in New York, NY
New York City
$200k - $350k base + equity
AI Start-up
We're working on behalf of a New York based early stage frontier LLM start-up who have just raised at a billion dollar valuation and are actively looking to scale their engineering team across the stack.
They're actively looking for engineers who have ideally had exposure to both smaller businesses as well as either growth start-ups or high-calibre big tech firms who can leverage their experience scaling systems.
2+ years commercial experience either in high-calibre tech company or early founder/founding engineer role - particularly interested in engineers who have been through either a company or team growth phase
Proficient with Python, Typescript, or Rust - however if you're competent with another backend language and happy to pick up the stack this isn't a hard requirement
Strong engineering fundamentals with exposure to a variety of different engineering problems
Exposure to language models and GenAI preferred
Software Engineer - Commodity Technology
Web developer job in New York, NY
Senior Software Engineer - Commodities Technology
About the Role A household name in the quantitative trading space is seeking a Senior Software Engineer to join its Commodities Technology team. This group is building cloud-native systems that power risk analytics for commodities trading and is leading a multi-year initiative to develop advanced risk platforms, broaden coverage for new asset classes, and support overall business growth.
The Senior Software Engineer will design and implement solutions for risk modeling, P&L calculations, stress testing, market data processing, and large-scale data management. This individual will collaborate with stakeholders to deliver high-performance systems in a fast-paced environment.
Key Responsibilities
Develop distributed systems for risk analytics and data processing.
Partner with risk and portfolio teams to deliver scalable solutions.
Automate reporting and enhance workflows through data-driven insights.
Required Qualifications
4+ years of software development experience in financial services.
Some exposure to commodities markets, derivatives, and risk analytics.
Expertise in Python, distributed architecture, and performance optimization.
Proficiency in SQL, Pandas, REST APIs, and AWS services.
Familiarity with Kubernetes, Kafka, Redis, MongoDB, and MS SQL.
Bachelor's or advanced degree in Computer Science or related field.
Preferred Skills
Experience with firmwide risk systems and energy markets.
Knowledge of Beacon Platform and Bloomberg/Morningstar data.
Familiarity with DevOps tools and Agile practices.
Additional languages (Rust, Java, Scala, C++ or C#) are a plus.
C# Software Engineer, Capital Markets
Web developer job in New York, NY
As the founding entity of RAINBOW PARTNERS, Quanteam is a consulting firm specializing in the fields of Banking, Finance, and Financial Services. Guided by our core values of closeness, teamwork, diversity, and excellence, our team of 1,000 expert consultants, representing 35 different nationalities, collaborates across 10 international offices: Paris, Lyon, New York, Montreal, London, Brussels, Geneva, Lisbon, Porto and Casablanca.
Job Description:
Our client, a prestigious international financial institution, is seeking an experienced C# .NET Developer with a minimum of 5 years of experience in similar roles. The successful candidate will work closely with business users and develop cutting-edge solutions for equity products.
Key Responsibilities:
Develop, enhance, and maintain financial applications using C# .NET.
Work directly with traders, analysts, and other stakeholders to understand business requirements and translate them into technical solutions.
Design and implement high-performance, scalable, and robust applications.
Ensure best coding practices, including unit testing and code reviews.
Optimize system performance and troubleshoot issues efficiently.
Collaborate with cross-functional teams to deliver high-quality software solutions.
Stay updated on industry trends and new technologies relevant to equity trading.
Required Skills & Experience:
5+ years of experience as a C# .NET Developer in a financial institution in trading environment.
Strong knowledge of .NET Core / .NET Framework and C# development.
Experience in equity products and a good understanding of financial markets.
Ability to work closely with business users and understand trading workflows.
Proficiency in relational databases (SQL Server, PostgreSQL, or Oracle).
Experience with multithreading, asynchronous programming, and performance optimization.
AI Software Engineer
Web developer job in New York, NY
My client, ranked among Fortune's World's Most Admired Companies, is a global leader in investment management and is seeking an AI Software Engineer to join the team. We have Mid & Senior level openings in NYC.
***Amazing salary, bonus, & some of the best benefits in the marketplace!!
Primary responsibility:
Develop and deliver AI-driven software solutions, collaborating with stakeholders and working alongside top AI industry leaders to build end-to-end applications and AI agents.
What we're looking for:
2-12 years of software engineering experience with strong coding and system design skills.
Experience designing, building, or deploying AI-driven applications, intelligent agents, or automation solutions.
Familiarity with AI frameworks, cloud-native architectures (AWS, containerized microservices), or data-driven systems.
Passion for learning emerging technologies and applying AI to solve real business problems.
Key Responsibilities:
Design, code, test, and deploy AI-driven applications and intelligent agents.
Collaborate in agile squads across front-end, back-end, data science, and UX.
Translate business requirements into AI-powered solutions and actionable insights.
Contribute to AI agent design, orchestration, prompt engineering, and deployment.
Use cloud and AI technologies: AWS, Databricks, Salesforce, containerized microservices, and AI/ML frameworks.
Qualifications:
BS/MS in Computer Science
Experience with Python, JavaScript, or Java (preferred beyond just Java)
Proven ability to deliver complete solutions, not just scripts
Hands-on experience with cloud-native architectures (AWS, Azure), containerized microservices, and agent frameworks
Stable career history; entrepreneurial and collaborative mindset
#LI-GT
Senior Market Risk Application Developer (Java/Groovy - Capital Markets)
Web developer job in New York, NY
The ideal candidate will have strong hands-on development experience, deep understanding of market risk and fixed-income products, and the ability to integrate with vendor systems such as Murex, Polypaths, ION, Bloomberg, etc.
Key Responsibilities
Analyze, design, develop, deploy, and maintain software applications supporting Capital Markets business units.
Participate in end-to-end development: requirement gathering, design, coding, testing, deployment, and documentation.
Develop and integrate Java/Groovy components within complex fixed-income and risk technology stacks.
Collaborate with business and technology teams to support market risk and credit risk functions.
Integrate with vendor systems such as ION, Bloomberg, Polypaths, Murex.
Perform system analysis, detailed design, component testing, integration testing, and quality assurance.
Ensure compliance with system requirements, business objectives, and security standards.
Drive technical excellence, best practices, and continuous improvement.
Support multiple projects simultaneously and provide advanced technical guidance where needed.
Contribute to the design and delivery of complex software solutions for capital markets.
Required Skills & Abilities
Strong hands-on proficiency in Java and/or Groovy, with solid experience in systems integration.
Additional scripting experience with Python.
Strong proficiency in SQL and experience with distributed multi-tier applications.
Experience with development tools/frameworks such as Git, Gradle, Camel, Kafka.
Familiarity with AWS services (EC2, S3).
Solid understanding of SDLC methodologies (Agile & Waterfall).
Strong knowledge of fixed-income products, trade flows, valuations, and risk management.
Experience integrating with systems such as ION, Bloomberg, Polypaths, Murex.
Strong analytical, problem-solving, communication, and presentation skills.
Understanding of core Computer Science fundamentals:
Web development
Service-oriented architecture
Cloud computing
Test-driven development
Domain-driven design
Education
Bachelor's degree in Computer Science, Information Technology, or a related field.
Equivalent work experience accepted.
Work Experience
10+ years of experience in Information Technology, Software/Application Development, or Capital Markets technology.
Experience developing solutions for risk, pricing, or trading environments is highly preferred.
Senior Software Engineer- Banking/Financial Services
Web developer job in New York, NY
Senior Software Developer - .NET Core / Azure (Banking & Financial Services)
We are actively seeking a Senior Software Developer with a strong background in banking or financial services to join our team. In this role, you'll be instrumental in developing and maintaining high-performance back-office web applications that power critical financial operations. The ideal candidate brings deep Microsoft technology expertise and a clear understanding of regulated environments, coupled with a passion for building scalable, secure, and efficient solutions.
As a key member of our development team, you'll help transform and optimize digital experiences that impact core banking operations, compliance, and financial reporting. Your familiarity with the unique demands of financial services systems-such as security, auditability, data integrity, and transaction processing-will be a major asset.
Key Responsibilities
Design, develop, and maintain internal financial web applications using .NET Core and Azure
Architect secure and scalable systems for high-volume financial data and transactions
Collaborate with stakeholders to understand banking business processes and propose robust technical solutions
Ensure applications meet regulatory and compliance standards relevant to financial services
Optimize performance, ensure data accuracy, and enforce secure coding best practices
Conduct code reviews, write unit tests, and support deployment pipelines (CI/CD)
Provide support for legacy financial systems and assist in modernization initiatives
Work closely with offshore development teams and contribute to a collaborative agile workflow
Stay current with banking tech trends, cloud solutions, and industry regulations
Required Skills & Experience
5+ years of software development experience, with recent work in banking or financial services
Expertise in .NET Core (C#), SQL, and HTML/CSS
Experience with Azure cloud services, including deployment and monitoring
Knowledge of financial system architecture, transaction processing, and audit logging
Proficiency with containers, serverless functions, and microservices
Strong grasp of security best practices, including encryption, authentication, and access control
Comfortable in agile environments, with strong team collaboration and stakeholder communication skills
Experience with unit testing, code reviews, and CI/CD tools
Familiarity with compliance-driven development, including SOX, PCI DSS, or similar standards
Preferred Qualifications
Experience working on banking platforms, payment systems, or wealth management applications
Familiarity with React or similar modern JavaScript frameworks
Understanding of RESTful API development and integration with third-party financial services
Exposure to performance profiling, memory management, and application tuning
Experience with Jenkins, Git, and automated testing frameworks
Proven success working with offshore development teams in regulated environments