OpenAI has a vacancy for the role of Software Engineer, API Agents in San Francisco. This is a full-time position. The listing was posted on Oct 9, 2026. PakkiNaukri collects this listing from the employer's own posting and re-checks it — the employer's full description and the application itself are on the original listing, linked from this page.
From the employer's listing (short excerpt)
About the Team
API Agents builds the shared agent harness, tools, and infrastructure that turn OpenAI’s frontier models into systems that can reliably complete real work. We carry the capabilities behind Codex into a much broader set of products and workflows across software engineering, research, finance, healthcare, enterprise operations, and more. Our work spans search and connected context, computer use, memory, delegation and multi-agent coordination, and safe execution. Sitting at the intersection of Research, Codex, infrastructure, and applied product teams, we build reusable agent capabilities that compound across the ecosystem.
About the Role
We are looking for an experienced backend software engineer to build the core systems behind the next generation of agents. You will design reliable services and abstractions that help agents find the right context, use tools and computers, retain knowledge, coordinate over long-running workflows, and take action safely.
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8,813 checked jobs live on the board◆204 new jobs added today◆NEW: ML Research Intern — Modal (New York)◆Every job re-checked daily◆NEW: Field Marketing Manager — Modal (San Francisco)◆CV Builder — templates for every profession◆NEW: Detection and Response Engineer — Modal (New York)◆Profile Match Score — see exactly where you fit◆NEW: Talent Partner, Emerging — Modal (New York)◆Fresh jobs every morning on the WhatsApp Channel◆NEW: Analytics Engineer — Modal (New York)◆We never charge fees — ever◆NEW: Documentation Engineer — Modal (New York)◆