> Markdown version of [/jobs/ext/3699376-senior-full-stack-java-developer](https://www.wearedevelopers.com/jobs/ext/3699376-senior-full-stack-java-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full Stack Java Developer - **Company:** Intersources Inc. - **Location:** New York, NY, United States - **Experience:** Expert - **Contract:** Temporary to permanent - **Skills:** Java (Programming Language), Artificial Intelligence, Algorithmic Trading, Data Governance, Cursor, Software Debugging, DevOps, Python (Programming Language), Linux System Administration, Enterprise Messaging Systems, Software Engineering, SQL Databases, System Testing, Windows Desktop, Network Routers, Cloud Platform System, GitHub Copilot, Claude Code, Spring-boot, Git, AngularJS, Information Technology, Apache Kafka, FpML - **Published:** October 12, 2026 - **Apply:** https://www.careerjet.com/job/uscd8652496e4e8893d6e38f9ac026cf5e/eaa ## About the Role * Bachelor's degree in computer science or a related discipline, or equivalent work experience required, advanced degree preferred. * 10+ years of experience in business analysis and software development with Trading systems analysis and administration experience required. * 10+ years of experience in software development required. * Strong proficiency with Java, SQL, and Git. * Strong proficiency of industry standard messaging protocols like Kafka,MQ, FIX, FpML, etc. * Proficiency with Data Standards & Data Modelling. * Proficiency with spring-based frameworks, including Spring, Spring Boot and Spring Integration. * Comfort with cloud environments and dev ops. * Familiarity with Windows and Linux environments. * Knowledge of Equity products and instruments. * Familiarity with one or more AI vibe-coding and coding-assist tools (e.g., GitHub Copilot, Cursor, Windsurf, Claude Code, etc) Preferred Experience: * Experience in the securities or financial services industry with focus on Equities * Hands on experience and working knowledge of Order Management Systems, Smart Order Routers * Previous experience designing and implementing new systems and features across platforms * Management of trade data feeds and feeds to downstream systems * Understanding of trade life cycles for equities * Understanding of regulatory landscape from a developer perspective * Brings production support experience and can troubleshoot issues under pressure * Previous experience with application profiling and debugging * Familiarity with Angular & Python is plus * Strong communication and organization skills ## Description This is a contract to hire role for a Senior Vice President / Senior Software Engineer- No Visa Candidates! Must be able to site onsite in 240 Greenwich Street, NYC - 4 days / week Execution Services Platform is responsible for application development and support for more than 150+ critical applications including Order Management, Execution, Pricing, Risk & PnL Platforms in the capacity as a broker dealer or in an agency model. The Platform provides technology management and application development for Foreign Exchange (FX), Buy Side Trading, Regulator Reporting, Markets Insight and Fixed Income & Equities businesses., We are seeking a talented senior hands-on Java Developer to join our core Equities Engineering team. You will design, develop, and implement our applications to support front office and operations groups. You will work cross-functionally with various stakeholders, trading systems, and running operational procedures to ensure our applications are managed efficiently and systematically. You will take a hands-on approach to understanding business drivers and the products we work with. You will drive innovation and continuous improvements within our development and operational practices. You will help re-engineer, modernize our platform and drive migration to a scalable microservice, cloud-based architecture using AI and other cutting edge development tools., * Build, design, Trading Channels, Messaging Channels interfacing with other venues and exchanges using industry standard protocols * Operate mission-critical systems and deliver day to day enhancements across front office and Operations * Design and develop core components in Java using messaging system like Kafka and MQ * Coordinate internal system testing procedures * Collaborate and deliver through terms in a platform operating model * Delivery & Maintenance for the applications within Equities domain * Provide second level support * Mentor junior developers