Member of Technical Staff - Backend Engineer

Member of Technical Staff - Backend Engineer

Location: San Francisco, CA

Job Type: Full-time

Sage Labs is an AI-powered commerce startup revolutionizing product discovery. We work at the intersection of machine learning, distributed systems, and high-performance computing, building cutting-edge search and discovery experiences. Backed by industry leaders, we are solving some of commerce’s toughest engineering challenges.

We operate with a flat structure, emphasizing direction and execution over hierarchy. As a Backend Engineer, you will design, build, and maintain the core services powering our AI-driven platform. This is a hands-on role for an engineer who thrives in complex, high-scale environments.

Your Impact

• Design scalable backend systems —Develop high-throughput, low-latency services for AI-driven search

• Ensure reliability —Optimize performance, fault tolerance, and observability at scale

• Develop APIs —Build well-documented, efficient APIs for seamless data exchange

• Enhance CI/CD —Automate deployment and release workflows

• Integrate AI/ML —Collaborate on AI-driven recommendations and personalization

• Secure systems —Implement best practices for data security and compliance

• Boost developer productivity —Improve internal tooling and workflows

Who You Are

• Backend expert —7+ years in distributed systems, HPC, or cloud infrastructure

• Programming skills —Fluent in Python, Go, or Rust, with scalable system experience

• Cloud knowledge —Expertise in AWS, GCP, or Azure, including serverless and containerized workloads

• DevOps experience —Hands-on with Terraform, Kubernetes, and CI/CD

• Data-driven —Familiar with real-time data processing and high-availability architectures

• Bias for action —Move fast while balancing sustainability

• Startup-ready —Thrive in ambiguity, adapt to change

Why Join Us?

• Build from the ground up —Shape the future of AI-first commerce

• Collaborate with top engineers —Solve cutting-edge problems in AI and commerce

• Own meaningful projects —Make an impact on architecture and product

• Competitive package —Salary, equity, and benefits

If you're an engineer eager to build AI-driven systems and transform commerce, we want to hear from you

Apply now or reach out to [email protected]

No recruiters or agencies please

Benefits include:

• Unlimited PTO

• Competitive Salary

• Equity Options

• Daily food stipend