OpenAI
Backend Software Engineer - Codex for Finance
$347K–$385K
San Francisco · Hybrid · Full-time · Posted Aug 11, 2026
- Experience
- 5+ years of professional software engineering experience.
About the job
Build and operate backend systems, data infrastructure, and enterprise integrations for AI-powered financial workflows, bringing products from prototype to production.
What you'll do
- Build backend systems and infrastructure to ingest, index, retrieve, and serve financial and firm-specific data.
- Develop secure enterprise integrations and systems that help models and agents use tools and data while preserving provenance and verifiability.
- Improve production reliability, performance, observability, and evaluations; work with financial institutions and cross-functional teams to ship product improvements.
What they ask for
- 5+ years of professional software engineering experience building and operating production backend systems.
- Proficiency in one or more backend languages, such as Python, Go, Rust, or TypeScript.
- Strong foundation in APIs, data systems, and distributed systems.
- Experience building data-intensive applications, search or retrieval systems, infrastructure platforms, or complex integrations.
Nice to have
- Direct AI/ML or financial services experience.
- Experience as a founder, early startup engineer, or building a new product from scratch.
Pay
$347K – $385K USD base salary
Tools
Python, Go, Rust, TypeScript, ChatGPT Work, Codex
AI focus
Build AI-native financial workflows, agentic systems, and evaluations that measure model performance on real financial workflows.
Model-written summary · the original posting is authoritative