Title of Role: Software Engineer (Backend)
Location: San Francisco, CA (Hybrid – 3 days/week in office)
Company Stage of Funding: Series B
Office Type: Hybrid
Salary: $150,000 – $300,000 base + equity
Our client is a fast-growing AI infrastructure company on a mission to make generative AI safer and more reliable. Backed by $30M+ in venture funding and trusted by Fortune 500 companies, they are the creators of one of the most widely used open-source frameworks in the machine learning data quality space (10k+ GitHub stars). Their technology helps leading organizations evaluate, detect, and correct data and model issues in AI systems—powering safer deployments of cutting-edge ML and generative AI.
You’ll join a high-caliber team with a track record of world-class research and production engineering, working in a fast-paced, mission-driven environment to define the safety layer for AI.
Design, build, and maintain scalable backend systems that power mission-critical AI safety products
Develop and optimize RESTful APIs to serve customer-facing and internal applications
Collaborate cross-functionally with ML researchers, product managers, and infrastructure engineers to productionize AI prototypes
Work with relational databases (PostgreSQL or similar), ensuring performance and reliability at scale
Drive backend architecture decisions to support new product capabilities and growing customer demand
Contribute to technical discussions, code reviews, and continuous improvements in engineering best practices
5+ years of professional software engineering experience, with a strong focus on backend development
Proven track record designing, implementing, and maintaining production backend systems
Advanced proficiency in Python (FastAPI, Flask, or similar frameworks)
Strong experience with relational databases such as PostgreSQL
Background in AI/ML, data infrastructure, or developer tooling industries
Experience at top-tier technology companies or high-growth startups with a high shipping velocity
Ability to thrive in a fast-paced, collaborative, and mission-driven environment
Degree in Computer Science, Engineering, or a related technical field from a top academic program
Experience collaborating closely with research teams to translate prototypes into production systems
Startup experience, demonstrating adaptability and comfort with ambiguity
Familiarity with backend infrastructure and distributed systems concepts
Base Salary: $150,000 – $300,000 (commensurate with experience)
Equity: 0.1% – 0.3% ownership in the company
Comprehensive health, dental, and vision benefits
Flexible paid time off and holidays
Hybrid work environment – 3 days/week in modern San Francisco office (Financial District)
Opportunity to make a significant impact on the safety and reliability of AI in production systems