# Principal Software Engineer, Codex Cyber

**Company**: OpenAI
**Location**: San Francisco
**Experience**: senior
**Job type**: Full time
**Salary**: $347K - $490K
**Category**: Engineering
**Industry**: Technology
**Wikidata**: https://www.wikidata.org/wiki/Q124605186

**Apply**: https://jobs.ashbyhq.com/openai/6c552323-f0bd-4756-a5fb-db2cda70173f?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_ca68f5e6-c5d

## Description

We are seeking a Principal Software Engineer to join our Codex Cyber team. You will help define and ship security products, work with trusted defenders and customers, shape model training and access patterns, and build research and evaluation systems for assessing cyber capabilities, validating safeguards, and improving training data.

**Responsibilities:**

- Help define and execute the technical roadmap for Codex Cyber's security products, including evaluations, safeguards, trusted-defender workflows, and deployment decisions.

- Work with trusted defenders, customers, and partner teams to understand cyber use cases, evaluate risk, and turn feedback into product and research priorities.

- Shape cyber-specific model training and access patterns, including data, evaluations, validation, and deployment criteria.

- Build and validate systems for measuring cyber capabilities, monitoring misuse risk, and proving safeguards work in practice.

- Collaborate with Safety/Preparedness, Research, Security, Legal, Communications, Go-to-Market, and external partners on company-wide cyber priorities.

- Translate frontier cyber research into launch-ready tools, operational playbooks, and durable infrastructure for Codex and security products.

**Requirements:**

- 10+ years of experience in Python, TypeScript/JavaScript, or similar languages, with the judgment to build reliable systems in ambiguous, high-stakes domains.

- Experience in ML systems, security products, cyber evaluations, model training, safety engineering, or trusted customer deployments.

- Ability to navigate ambiguity and build security products that bring frontier AI capabilities to trusted defenders responsibly.

**Benefits:**

- Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts

- Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)

- 401(k) retirement plan with employer match

- Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)

- Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees

- 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time

- Mental health and wellness support

- Employer-paid basic life and disability coverage

- Annual learning and development stipend to fuel your professional growth

- Daily meals in our offices, and meal delivery credits as eligible

- Relocation support for eligible employees

- Additional taxable fringe benefits, such as charitable donation matching and wellness stipends, may also be provided.

**Compensation:**

- $347K – $490K per year

## Skills

### Required
- Python
- TypeScript
- JavaScript
- ML systems
- security products
- cyber evaluations
- model training
- safety engineering

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Source: [Apply at jobs.ashbyhq.com](https://jobs.ashbyhq.com/openai/6c552323-f0bd-4756-a5fb-db2cda70173f?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)