
Lead Software Engineer, Backend
Radix
full-time
Posted on:
Location Type: Hybrid
Location: Santa Monica • California • United States
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Salary
💰 $180,000 - $220,000 per year
Job Level
About the role
- Build and maintain backend systems: Design and implement scalable backend services that support high-throughput data workflows and real-time decision-making.
- Develop robust APIs: Build secure, performant, and reliable APIs that power our platform and integrate with internal and external systems.
- Collaborate across teams: Work with Product, to ship features end-to-end. Translate ambiguous requirements into technical solutions that have real business impact.
- Shape our architecture: Contribute to decisions around system design, performance, and scalability. Help define patterns and best practices for a growing engineering team.
- Own the full development lifecycle: From design and implementation to testing, deployment, and post-release support — you’ll see your work through from start to finish.
- Improve developer experience: Advocate for code quality, testing, DevOps, and observability, making it easier for the team to ship reliably.
- Mentor and grow the team: Share knowledge, conduct code reviews, and help junior engineers grow technically and professionally.
Requirements
- Bachelor’s degree in STEM preferred (additional experience in lieu of a degree is also accepted)
- 7+ years of software engineering experience, ideally building service-oriented or distributed systems.
- Proven experience designing, scaling, and maintaining backend systems in production.
- Deep understanding of software engineering fundamentals and design patterns.
- Strong SQL skills and experience with relational databases (PostgreSQL preferred).
- Proficient in Python (FastAPI/SQLAlchemy) or another object-oriented language.
- Experience with cloud infrastructure (GCP or AWS preferred).
- Familiarity with DevOps, infrastructure-as-code, and CI/CD pipelines is a plus.
- Pragmatic problem-solver: you know how to balance ideal architecture with real-world constraints.
- Comfortable in fast-paced, early-stage environments where your work has direct impact.
Benefits
- Competitive compensation, including equity
- Full health, dental, and vision coverage
- Retirement savings plan through 401(k)
- Flexible time off
- Opportunities for company-wide connection and events
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
backend systemsAPIsSQLrelational databasesPostgreSQLPythonFastAPISQLAlchemycloud infrastructureGCP
Soft Skills
collaborationproblem-solvingmentoringcode reviewscommunicationadvocacy for code qualityadaptabilitytechnical knowledge sharingteam growthbusiness impact