Backend Software Engineer

Responsibilities

• Design reliable, reproducible, and extendable evaluation pipelines
• Build infrastructure for continuous evaluation monitoring frameworks, including regression/drift monitoring and golden datasets
• Design, build, and maintain backend services and APIs to support intelligent automation and knowledge systems
• Integrate and structure data across internal platforms for use by downstream systems and AI workflows
• Collaborate with data science and research teams to integrate OpenAI models into high-leverage workflows
• Own the full development lifecycle of new backend systems and internal platform capabilities

Requirements

• 4+ years of backend engineering experience at product-driven companies
• Proficiency in Python, FastAPI, and Postgres
• Experience designing and scaling distributed systems, APIs, or data processing pipelines
• Experience building AI agents or applications, including designing evals and improving performance through prompting or scaffolding
• Familiarity with LLM evaluation methods and patterns like multi-agent workflows, tool use, or long context
• Experience creating production evals or measuring the performance of ML/LLM models at scale

Preferred Qualifications

• A pragmatic mindset with the ability to ship iteratively while building toward a long-term vision
• Experience working in ML/LLM-heavy domains

Benefits

• Competitive salary ($230K – $385K) and generous equity
• Medical, dental, and vision insurance
• 401(k) retirement plan with employer match
• Paid parental leave and flexible PTO
• Daily meals in the office and meal delivery credits
• Annual learning and development stipend
• Relocation support for eligible employees

About the Company

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products.