Staff Software Engineer, Government Programs

About the role

Muon is looking for a Staff Software Engineer to join our team and help scale our core platforms. In this role, you'll have high-level, organizational impact designing foundational architecture, developing shared libraries and services, and developing technical strategies to ship customer-facing features with real, immediate impact. This role will be a technical lead, building the platforms that enable Muon's missions for our government programs. You'll work within a tight-knit team that values open communication, cross-functional collaboration, and moving quickly without cutting corners. You'll partner closely with other engineering teams to translate business needs into reliable, well-crafted solutions. Whether you're building something from scratch or improving what already exists, you'll have a direct hand in shaping the systems our customers depend on every day. This will include developing software and infrastructure in classified environments.

Responsibilities

• Design, build, and evolve high-performance systems that are scalable, resilient, and reliable in regulated environments
• Deploy, operate, and maintain software platforms and infrastructure into classified environments, including meeting relevant security, compliance, and accreditation requirements.
• Ensure execution across interdependent, multi-month epics and initiatives.
• Own architectural decisions that shape the long-term direction of our core systems.
• Define metrics aligned with critical company goals
• Identify and resolve bottlenecks, performance issues, and systemic risks in production environments.
• Partner with cross-functional teams to translate business and product needs into well-crafted technical solutions.
• Mentor teams and senior engineers, define training plans, define standards for code, testing, design and review.
• Take ownership of systems, tools and processes that have broad company impact.

Requirements

• Active US security clearance; TS/SCI preferred.
• ITAR/EAR Requirements: applicant must be a U.S. person (U.S. citizen/national, lawful permanent resident, refugee, asylee) or eligible to access export-controlled information without required export authorization, or eligible and reasonably likely to obtain required export authorization.

Qualifications

• BS/MS in Computer Science, Engineering, or related field OR equivalent industry experience.
• 10+ years of software engineering experience