Senior Software Engineer (Software Platform)

• Muon is looking for a Senior Software Engineer to join our Software Platform team
• This team builds and operates the paved roads (CI/CD, Kubernetes, Terraform, Bazel, AWS, IAM, data infrastructure, and more) that underpin both our internal tooling and the production systems behind customer-facing products such as Muon Mission Command
• The Software Platform team is critical to the overall growth and success of Muon’s software engineering organization: as the number of product teams, services, and customers expands, the leverage this team creates, through reduced cognitive load, eliminated toil, and self-service Golden Paths, directly determines how fast the rest of engineering can move
• Design, build, and evolve high-performance systems that are scalable, resilient, and reliable
• Work across the stack, and cross-functionally to deliver end-to-end platform capabilities
• Contribute to architectural decisions that shape the long-term direction of our core systems
• 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
• Participate in code reviews, technical design discussions, and knowledge sharing across teams
• Take ownership of features from concept through deployment and ongoing operation

Benefits

• 100% health, dental, and vision coverage for employees; 50% coverage for dependents (Concierge Medical offered through One Medical where available)
• Parental leave for primary and secondary caregivers
• Generous time off policy
• 401(k) plan through Betterment and equity management through Carta
• Fully stocked kitchen at our HQ and we cater lunch 3 days per week
• Dog-friendly office

• BS/MS in Computer Science, Engineering, or related field OR equivalent industry experience
• Strong debugging, profiling, and code optimization skills
• 8+ years of software engineering experience, with strong proficiency in Python, C++, or Rust, in production environments
• Demonstrated experience building and operating mission-critical services with uptime, reliability, and performance requirements
• Knowledge of cloud-native infrastructure (e.g., containers, service orchestration, observability stacks)
• Experience in distributed systems, backend services, or platform development with hands-on depth in Kubernetes, Terraform, and AWS
• Experience mentoring junior engineers or leading medium to large technical initiatives
• Comfort working in a highly interdisciplinary environment with engineers, operators, and domain specialists
• Experience with CI/CD pipelines, infrastructure-as-code, or automated deployment workflows
• Familiarity with real-time data processing pipelines or high-throughput systems
• Contributions to open-source projects or a track record of technical writing and knowledge sharing