Make an Impact on Mission-Critical Security Technology We’re seeking a Senior Software Engineer to join a high-impact team supporting advanced, network-connected security screening systems. This is a hands-on role focused on stabilizing and enhancing production systems while contributing to next-generation (greenfield) capabilities. If you enjoy solving complex problems, improving real-world systems, and working across engineering disciplines—this role offers a strong balance of ownership, technical depth, and visible impact. What You’ll Do - Architect and deliver new features that coordinate across multiple systems, designing secure and reliable inter-service communication to support them. - Own and enhance existing production codebases - Contribute to targeted greenfield development as new capabilities are introduced - Support software releases, debugging, and issue resolution in production environments - Partner with systems, test, field, and manufacturing teams to resolve integration challenges - Create and improve technical documentation to support long-term system sustainability What You Bring - Experience with microservices architectures, including: - REST APIs, gRPC/protocol Buffers - Message brokers - Containerization - Securing communications channels. - Experience in C++, including multi-threading. - Proven background working in Linux environments (must-have) - Experience supporting distributed / networked systems in production - Comfortable working in and improving established codebases What Sets You Apart - Experience balancing system sustainment and new development - Strong debugging, code review, and system-level problem-solving skills - Background in complex, integrated environments where uptime and reliability are critical - Ability to operate independently while influencing technical direction - Passion for improving documentation and knowledge continuity Why This Role - Work on real-world, mission-critical technology - High visibility across cross-functional teams - Blend of stability work + forward-looking innovation