Senior Software Engineer, Software Platform

About the role

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.

This position is hybrid and requires working on-site in our San Jose, CA office three days per week.

Responsibilities

• 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.

Qualifications

• BS/MS in Computer Science, Engineering, or related field OR equivalent industry experience.
• 8+ years of software engineering experience, with strong proficiency in Python, C++, or Rust, in production environments.
• Experience in distributed systems, backend services, or platform development with hands-on depth in Kubernetes, Terraform, and AWS.
• 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).
• Strong debugging, profiling, and code optimization skills.
• Experience mentoring junior engineers or leading medium to large technical initiatives.

Nice-to-have Skills

• Comfort working in a highly interdisciplinary environment with engineers, operators, and domain specialists.
• Familiarity with real-time data processing pipelines or high-throughput systems.
• Experience with CI/CD pipelines, infrastructure-as-code, or automated deployment workflows.
• Contributions to open-source projects or a track record of technical writing and knowledge sharing.

Salary

The salary range for this role is $213,000 - $237,000, plus a competitive equity grant and comprehensive benefits package. Final compensation will be determined based on skills, qualifications, experience, and geographic location as assessed during the interview process.

Muon is currently registered and able to hire in the following states

AL, AZ, CA, CO, CT, DC, FL, GA, IL, IA, ID, MD, MA, MI, MN, MO, NJ, NY, NC, OH, OR, PA, TN, TX, VT, VA, WA

ITAR/EAR Requirements

This position requires access to export controlled information.

To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency.

The Company may, for legitimate business reasons, decline to pursue any export licensing process.