# Backend Software Engineer - Codex for Finance

**Company:** [OpenAI](https://hotfix.jobs/companies/openai)
**Location:** San Francisco, CA
**Role:** Backend Engineering
**Salary:** $293k – $325k/yr
**Experience:** 5+ years
**Skills:** Python, Go, Rust, TypeScript, APIs, Data Systems, Distributed Systems, Search Systems, Retrieval Systems, Infrastructure Platforms, Authentication, Authorization, Observability, AI/ML, Financial Data
**Posted:** 2026-08-11

> Build backend systems, data infrastructure, agentic workflows, and enterprise integrations that make AI useful and trustworthy for financial institutions. The role requires 5+ years of software engineering experience, backend-language proficiency, and experience with production data-intensive or distributed systems.

## Job Description

## Responsibilities
- Design and build backend systems powering AI-native financial workflows across ChatGPT Work and Codex.
- Build infrastructure to ingest, index, retrieve, and serve financial data, company filings, market information, and firm-specific knowledge at scale.
- Develop secure integrations with financial data providers, enterprise knowledge systems, and customer environments, including authentication, authorization, and entitlements.
- Build systems that enable models and agents to use the right tools and data, preserve source provenance, and produce accurate, verifiable outputs.
- Improve the reliability, latency, observability, and quality of production systems.
- Develop evaluations that measure performance on real financial workflows.
- Work directly with financial institutions to understand customer needs, unblock deployments, and turn feedback into product improvements.
- Partner with product, design, research, security, and engineering teams to take capabilities from prototype to scaled production.

## Requirements
- 5+ years of professional software engineering experience.
- 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.
- Strong product instincts and ability to turn ambiguous customer problems into practical, well-engineered solutions.
- Comfort working across the stack and organizational boundaries.
- High standards for reliability, security, privacy, and performance, particularly in enterprise or high-trust environments.
- Interest in applying AI model capabilities to complex professional work.

## Nice-to-haves
- Direct AI/ML or financial services experience.
- Experience as a founder, early startup engineer, or engineer who helped build a new product from scratch.

## Compensation
- Annual salary: $293,000–$325,000.

## Similar jobs

- [Software Engineer, Sandboxing](https://hotfix.jobs/jobs/d5312ce5-70cc-417d-a666-febfbebda511) - Thinking Machines Lab - San Francisco, CA - $300k – $450k/yr
- [Software Engineer, Host Assurance](https://hotfix.jobs/jobs/8e75c9b0-63a5-4e79-ac17-757b5f1b56fe) - OpenAI - San Francisco, CA - $266k – $445k/yr
- [Product Engineer, Ona](https://hotfix.jobs/jobs/fced2e7b-d946-44bb-8c1c-50640be580c3) - OpenAI - San Francisco, CA - $255k – $445k/yr
- [Software Engineer - Identity and Authorization](https://hotfix.jobs/jobs/e15f1f39-fea6-4109-b3d1-9d7ca030d633) - Baseten - San Francisco, CA - $240k – $285k/yr
- [Software Engineer](https://hotfix.jobs/jobs/6a07ad4a-8519-4cf3-8100-9d81f075ffb5) - Stripe - Seattle, WA - $235k – $286k/yr

**Apply:** https://hotfix.jobs/jobs/62f48384-2f64-470a-a767-f343d81adf49
**Canonical:** https://hotfix.jobs/jobs/62f48384-2f64-470a-a767-f343d81adf49