Software Engineer, Infrastructure & Platform

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Software Engineer, Infrastructure & Platform based in the United States. This is a hands-on engineering role focused on building the infrastructure behind advanced AI evaluations and agentic systems.You’ll design secure, reproducible environments where AI models can execute code, use tools, and complete complex multi-step tasks.The role sits at the intersection of backend engineering, cloud infrastructure, distributed systems, and AI safety.You’ll build scalable evaluation platforms, orchestration systems, APIs, and tooling used by researchers, engineers, and security specialists.A key part of the role is ensuring evaluations are reliable, observable, secure, and reproducible at significant scale.You’ll work alongside analysts, red teamers, and domain experts to turn complex research concepts into robust technical systems.This is a fully remote U.S.-based opportunity suited to an engineer who enjoys ambiguity, deep debugging, and technically challenging problems.