
About Legion
Let’s be real, AI isn’t magic; Legion was built to move beyond AI hype—delivering secure, reliable systems that work alongside the people tackling the world’s most critical challenges.
Born from a Department of Defense partnership and trusted by leaders across government and enterprise, Legion embeds intelligence inside complex systems, unlocking data, accelerating human workflows, and strengthening mission-critical systems. We don’t replace workflows—we optimize them, ensuring quality, efficiency, and reliability inside the platforms our partners already use.
With world-class collaborators like Palantir, Nvidia, HPE, and Oracle, we’re building intelligent infrastructure that enhances human capability and drives impact at the edge and across a range of enterprises.
We’re looking for bold thinkers and doers to join us in shaping the future of AI that’s secure, grounded, and built to work.
Staff Applied Machine Learning Engineer (Remote USA)
***US Citizenship or Greencard is required due to US Government contract requirements***
As a Senior Software Engineer, Machine Learning, you will design, build, and evolve the core AI capabilities that power intelligent experiences across our enterprise AI platform. You will integrate modern foundation models into production systems, develop reusable AI capabilities, and continuously improve their quality, reliability, and performance. Working closely with cross-functional teams, you will transform advances in AI into secure, scalable, and production-ready capabilities that accelerate innovation across the platform.
Equal Opportunity Statement
Legion provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

Legion helps organizations turn AI pilots into production results, securely and at scale.
-Turn hours of manual work into minutes with automated workflows
-Free teams from repetitive tasks to focus on high-value work
-Get real-time visibility into AI costs, usage, and ROI
-Scale confidently with security trusted by the Department of Defense
Organizations using Legion see 70-90% reductions in time spent on reporting, compliance reviews, and administrative tasks. Teams automate workflows across procurement, maintenance and repair operations (MRO), RevOps, and intelligence analysis while maintaining full control and auditability. Whether you’re in a regulated industry or handling classified information, Legion ensures your data stays sovereign and your AI operations stay compliant.
Trusted by U.S. SOCOM and DOE with 70,000+ users. Certified for SOC 2 Type II, HIPAA, GDPR, and CMMC.