MLabs is hiring a Staff Software Engineer (Backend) to build the core orchestration engine that allows autonomous AI employees to think, act, and evolve. You will own major portions of a platform that replaces an entire enterprise sales stack within a single product.
What You'll Do
- Design and build high-throughput AI pipelines to process millions of signals and make real-time decisions.
- Build and scale infrastructure for email deliverability, inbox management, and complex AI coordination.
- Design, build, deploy, and monitor your own systems end-to-end.
- Work in a flat engineering org with zero red tape, shipping constantly.
What We're Looking For
- 6+ years of backend development experience.
- Experience in a high-growth startup environment owning systems from ideation to production.
- Deep understanding of distributed systems, database performance, and API design.
- Experience building data-intensive services at scale.
- Experience with cloud-native infrastructure, including containers, orchestration, CI/CD, and observability.
- Strong ownership mindset with opinions on reliability and testing.
Nice to Have
- TypeScript/Node.js proficiency.
- Strong fundamentals in Python, Go, or similar languages.
- AI-Native workflow leveraging modern tools like Claude Code.
Technical Stack
- TypeScript / Node.js
- PostgreSQL, Redis
- Kubernetes, AWS (ECS, EC2)
- Mastra, Temporal, Langfuse
Team & Environment
You will join a small team within a flat engineering organization with direct ownership and no bureaucracy.
Benefits & Compensation
- Meaningful impact on non-trivial backend complexity.
- High ownership with massive scope.
- Competitive base salary of $225K – $300K and significant equity.
- Culture of excellence: low ego, high standards, direct communication.
- Flexibility in location.
Work Mode
This role offers a hybrid work model. Positions are available in San Francisco, New York, or Remote (US).
At MLabs, we are committed to offering equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and provide information in accessible formats.
