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Senior Java Full Stack Developer

HaystackDenver, COL5 SeniorSeptember 18th, 2026
We're working with a dynamic and innovative company providing cutting-edge software solutions to the insurance and financial services industries.The Role Design, develop, and implement robust Java-based full-stack applications. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Contribute to all phases of the development lifecycle. Mentor junior team members and uphold best practices.What You'll Need 8-12 years of experience with Java (Core Java, Collections, Multithreading, Streams). 8-12 years of experience with Spring Boot & Spring Framework (MVC, Security). 6-8 years of experience with Microservices Architecture and Distributed Systems. 6-8 years of experience with REST API Development and API Versioning. Expertise in Database technologies (DB2, SQL Server, Oracle, PostgreSQL, Hibernate, JPA). Proven experience in the Insurance or Financial Services industry.What's On Offer Opportunity to work on challenging and impactful projects. Collaborative and supportive team environment. Long-term contract engagement.Apply via Haystack today!