Hiring: Software Engineer Company: Haystack Location: Virginia Beach, VA Job Posted Time: 2026-09-15 19:04:20 Target Skills & Keywords : HBase, Java, LLM, TestNG About the job Experience: •3+ years of professional Java development experience Required Skills: •Develop and maintain Java-based plugin functionality for modeling tools •Implement SysML model generation capabilities, including Block Definition Diagrams and Activity Diagrams •Build and maintain parsers and data models for structured JSON inputs to drive model generation •Collaborate with AI engineering teams to align plugin behavior with LLM output and improve AI-assisted generation workflows •Diagnose and resolve issues across UI, parsing, API integration, and backend generation logic •Contribute to code quality improvements, validation logic, and testing strategy across a multi-repository codebase •What You'll Need •Bachelor's degree in Computer Science, Software Engineering, or a related technical field •3+ years of professional Java development experience •Experience designing and maintaining object-oriented systems in production codebases •Strong proficiency with JSON parsing/serialization and schema-driven data models •Ability to obtain and maintain an active DoD Secret Clearance •Strong communication skills and ability to collaborate across technical teams •What's On Offer •Competitive salary ranging from $85,000 - $100,000 per year Compensation: •$85,000 •$100,000 •$85,000 - $100,000 per year Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!