> Markdown version of [/jobs/ext/3634672-senior-full-stack-software-engineer-java-react](https://www.wearedevelopers.com/jobs/ext/3634672-senior-full-stack-software-engineer-java-react). 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 Software Engineer (Java / React) - **Company:** JSR Tech Consulting - **Location:** South Orange Village, NJ, United States - **Experience:** Expert - **Salary:** $135,200.0 - $145,600.0 - **Contract:** Temporary to permanent - **Skills:** Clean Code Principles, Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Data Analysis, Architectural Patterns, Automation of Tests, Unit Testing, Databases, Data Stores, IBM DB2, Software Design Patterns, Programming Tools, Distributed Systems, Django Web Framework, Github, Identity and Access Management, Java Database Connectivity, Java Web Services, Spring Framework, JSON, Python (Programming Language), PostgreSQL, Apache Maven, Node.Js, NoSQL, OAuth, Object-Oriented Software Development, Oracle (Applications), Openid Connect, JSON Web Token, Security Assertion Markup Language (SAML), Secure Coding, Service-Oriented Architecture, Simple Object Access Protocol (SOAP), PL-SQL, Data Streaming, Subversion, TypeScript, Extensible Markup Language (XML), Data Logging, Multithreading, Transport Layer Security, Test-Driven Development (TDD), GitHub Copilot, ReactJS, Flask (Web Framework), Claude Code, Concurrency, Spring-boot, Software Application Programming, Parallel Computation, Apigee, Agentic-AI, Integration Tests, Information Technology, Bitbucket, Restful APIs, Amazon Simple Queue Service (SQS), Domain Driven Design, Devsecops, Api Management, Jenkins, Amazon Redshift, Microservices - **Published:** October 8, 2026 - **Apply:** https://www.disabledperson.com/jobs/75888920-senior-full-stack-software-engineer-java-react ## About the Role * Bachelor's degree in Computer Science, Engineering, or related experience * 6+ years of hands-on experience building enterprise-grade applications with modern Java and JavaScript ecosystems * Strong UI expertise building modern applications with React and JavaScript * Financial or Insurance industry experience * Experience with agentic frameworks and AI-driven development tools (Claude Code, GitHub Copilot, etc.) * Experience with Agile methodologies and Test-Driven Development (TDD) * Excellent problem-solving, communication, and collaboration skills Technical Skills (Advanced Experience in Several) * Languages: Java, Python, JavaScript, TypeScript; OOP, design patterns, distributed systems * Java Services: Spring, Maven, Microservices, multi-threading, concurrency, parallel processing * Frameworks: React, Spring Boot, Flask, Django, Node.js * Data Stores: PL/SQL, DB2, Oracle, Postgres, Redshift, NoSQL * Data Streaming: SQS, Kinesis, AWS MSK, EventBridge * APIs: REST, SOAP, JSON, XML, JDBC, SOA patterns * API Management: Kong, Apigee * Security: Secure coding, DevSecOps, JWT, SSL, SAML 2.0, OpenID Connect, OAuth 2.0 * DevOps: GitHub, Bitbucket, Subversion, Jenkins * AWS: Core services across compute, storage, database, IAM, and analytics * Testing: Unit, interface, end-user, and automated testing * Accessibility awareness, monitoring, and logging, * Domain Driven Design (DDD) * AWS cloud-native solution development * Architecture patterns, design, and critical thinking ## Description * Build applications using modern design patterns, architectural principles, and current industry coding standards * Develop high-quality, well-documented, and efficient code * Collaborate with product owners to define feature stories and with tech leads on technical design * Write unit tests, integration tests, and functional automation * Research and resolve issues identified by QA or product support * Coach team members and bring input on relevant and emerging technologies * Solve complex problems that require evaluating intangible variables * Work with Python, Java, JavaScript, React, and Spring Boot