> Markdown version of [/jobs/ext/4721486-full-stack-engineer-java-react-mobile-3711500](https://www.wearedevelopers.com/jobs/ext/4721486-full-stack-engineer-java-react-mobile-3711500). 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). --- # Full-Stack Engineer (Java/React/Mobile) - 3711500 - **Company:** LIGHTHOUSE - **Location:** Buffalo, NY, United States - **Experience:** Expert - **Salary:** $145,600 - $156,000 - **Contract:** Temporary to permanent - **Skills:** Java (Programming Language), Apple IOS, Mobile Application Development, Code Review, Application Data, Software Engineering, Web Applications, ReactJS, Spring-boot, Backend, Build Management, Production Code, Jetpack Compose, Microservices - **Published:** November 14, 2026 - **Apply:** https://www.dice.com/job-detail/cda1a2cd-9d1e-4598-a753-9c59be0565f6 ## About the Role * 6+ years of hands-on software development experience with demonstrated ability to design and architect solutions * Strong proficiency across Java/Spring Boot microservices, React, and native mobile development (Swift UI and/or Jetpack Compose) * Proven experience mentoring developers and leading technical decisions through code reviews and guidance * Excellent communication skills with ability to present technical concepts to both engineering and non-technical stakeholders * Demonstrated ability to work independently and take ownership of complex technical challenges * Strong problem-solving skills for untangling complex, interconnected systems across multiple platforms * Ability to manage multiple competing priorities and projects simultaneously * Experience working in regulated environments such as banking is a plus ## Description Lighthouse Technology Services is partnering with our client to fill their Full-Stack Engineer (Java/React/Mobile) position! This is a 3-4 month contract with possible extension and will be hybrid in Buffalo, NY or Wilmington, DE. This role will be a W2 employee of Lighthouse Technology Services. No C2C or subcontracting arrangements will be considered. What You'll Be Doing: * Design and build backend services using Java and Spring Boot to power application data and logic * Develop user-facing features in React for web applications * Build native mobile features using Swift UI for iOS and Jetpack Compose for Android * Architect technical solutions for complex problems and drive implementation from concept to deployment * Own end-to-end delivery of complex system components including design, development, testing, and documentation * Mentor and guide other developers through code reviews and technical decision-making * Collaborate with engineering teams and business stakeholders to translate requirements into technical solutions * Write comprehensive documentation to ensure system maintainability and knowledge transfer * Lead testing efforts and quality assurance processes to ensure robust, production-ready code * Navigate and solve problems across interconnected systems and multiple platforms