Software Engineer - Senior

We’re looking for a Senior Software Engineer to lead software development initiatives for enterprise AI platforms, provide technical leadership and architectural guidance while delivering high-quality, scalable software solutions. ABOUT SPEAR AI Spear AI is a growing defense contracting company dedicated to delivering cutting-edge solutions that support our nation’s security. As we expand, we’re building a culture where innovation meets mission-critical work. We operate with a flat organizational structure that empowers every team member to make an impact, collaborate directly with leadership, and contribute to projects that matter. Whether you’re joining our Hardware, Software, or Services division, you’ll work alongside talented professionals who are committed to excellence and advancing the capabilities that keep our nation safe and secure. The Services team is Spear AI’s applied engineering and technical advisory arm - embedded alongside government customers to design, build, and operate the AI pipelines, data infrastructure, and software systems that take emerging AI capability from concept to fielded mission impact. The team brings together machine learning engineers, data engineers, software engineers, cloud architects, and operational subject matter experts who pair deep technical skill with a working understanding of how the Intelligence Community and DoD actually function day to day. Services engagements vary from small, focused capability sprints to multi-year embedded support across classified environments. WHAT YOU WILL DO - Lead design and implementation of complex full stack systems, services, and applications supporting the customer's AI/ML and analytic mission - Architect end-to-end solutions across front-end UIs, back-end services, APIs, and data layers - Develop and maintain RESTful APIs, microservices, and event-driven architectures - Build and improve user interfaces and operator-facing dashboards used in mission workflows - Provide technical me