Applied AI Engineer: Codex for Production Workflows

AI Chopping Block, Inc.; Greater London; Hybrid; GBP 120,000 - 160,000; Full time

Job summary

OpenAI in London is seeking an Applied AI Engineer focused on Codex to partner with leading engineering teams to design, build, and deploy AI-powered coding workflows. You will implement prototypes, evaluation harnesses, integrations, and production accelerators, translating deployment experience into product feedback and scalable patterns.

The role emphasizes strong technical judgment, end-to-end ownership, and collaboration across product, research, and security to improve developer

Qualifications

• Demonstrated track record in designing, building and delivering software or AI systems in enterprise environments.
• Strong Python proficiency; experience with JavaScript/TypeScript is valuable.
• Fluent in English and French.

Responsibilities

• Identify high-value Codex opportunities and translate them into technical architectures, implementation plans, evaluation strategies, and measurable success criteria.
• Design, build, and deploy AI-powered software development workflows that improve how engineering teams plan, write, test, review, debug, and deliver software.
• Work hands-on in code to build prototypes, evaluation harnesses, reference implementations, integrations, workflow automations, and production accelerators—often using Codex as part of your own development process.
• Help customers progress from experiments to reliable production workflows, sustained developer adoption, and scaled impact across engineering organizations.
• Design systematic approaches for evaluating AI coding systems using representative software engineering tasks, automated graders, production signals, and developer feedback.
• Make sound technical decisions across models, agents, tools, developer environments, integrations, reliability, observability, latency, cost, safety, security, and operational readiness.
• Diagnose complex implementation challenges, reproduce failures, test hypotheses, and drive technical blockers toward resolution.
• Lead technical deep dives, workshops, and hands-on enablement that help engineering teams understand and adopt advanced AI coding workflows effectively and safely.
• Gather high-fidelity insights from real-world Codex deployments and translate them into clear product proposals, model feedback, and technical requirements for OpenAI Product, Research, and Engineering teams.
• Create reusable architectures, tooling, examples, guides, and technical patterns—including contributions to resources such as the OpenAI Cookbook—that accelerate future Codex deployments.
• Influence customer engineering strategy by helping technical leaders understand how AI coding systems can reshape their software development lifecycle, engineering practices, and organizational workflows.

Skills

Python

Hands-on engineering

Software development

AI/ML engineering

Code integration

English & French fluency

Codex experience

Tools

Codex

Job description

OpenAI in London is seeking an Applied AI Engineer focused on Codex to partner with leading engineering teams to design, build, and deploy AI-powered coding workflows. You will implement prototypes, evaluation harnesses, integrations, and production accelerators, translating deployment experience into product feedback and scalable patterns.

The role emphasizes strong technical judgment, end-to-end ownership, and collaboration across product, research, and security to improve developer