> Markdown version of [/jobs/ext/3544005-java-backend-engineer](https://www.wearedevelopers.com/jobs/ext/3544005-java-backend-engineer). 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). --- # Java Backend Engineer - **Company:** Key Infotek Llc - **Location:** Phoenix, AZ, United States - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Big Data, Software Quality, Distributed Systems, Github, Performance Tuning, Strategies of Testing, GitHub Copilot, ReactJS, Generative AI, Vert.x, Backend, AngularJS, Solid Principles, Reactive Programming, Graphql, Front End Software Development, Restful APIs, Jenkins, Microservices - **Published:** October 2, 2026 - **Apply:** https://www.dice.com/job-detail/1eb0a440-7ad9-4645-9a99-02bc3e027850 ## About the Role * Strong hands-on experience in Java development * Expertise in building REST APIs and GraphQL services * Experience with Big Data querying and handling large datasets * Hands-on experience with Vert.x or similar reactive programming frameworks * Strong understanding of full stack development (backend + UI) * Experience with frontend technologies (React, Angular, or similar) * Familiarity with GenAI tools (GitHub Copilot or similar AI-assisted development platforms) * Experience with CI/CD pipelines (GitHub Actions, Jenkins, etc.) * Strong knowledge of software design principles, system design, and microservices architecture * Experience working with distributed systems and scalable architectures * Understanding of code quality, testing strategies, and performance optimization * Ability to work across teams and align with enterprise-wide standards Preferred * Prior American Express experience * Experience working in enterprise-scale environments with multiple teams and systems