Senior Software Engineer - Technical Advisor

Source One is a consulting services company and we’re currently looking for the following individuals to work as consultants to our client, a leading AI safety and research company.* We are unable to work with any third-party companies or offer visa sponsorship for this role.Title: Senior Software Engineer - Technical AdvisorPay Rate: $150/hr (W-2)Location: Remote but must reside in the U.S.Duration: 6 months with strong extension potentialOverview: Our client is an AI safety and research company working to build reliable, beneficial, and interpretable AI systems. They are currently focused on evaluating frontier AI models to understand how coding agents perform on real, production-grade software engineering tasks.The Software Engineer - Technical Advisor evaluates frontier AI coding models to uncover precisely where and why they break when working on real engineering tasks. Candidates spend their time reviewing model-generated pull requests, evaluating full agent session logs, and constructing hard, container-based test problems. Rather than writing code from scratch to ship product features, this role acts as a high-bar technical authority - using deep code review skills and rigorous written rationale to separate genuinely good software engineering from plausible, superficial AI code.Typical Activities:Review model-written PRs against real production repositories, documenting all bugs, edge cases, and architectural issues with severity ratings and technical reasoning.Evaluating full coding-agent sessions to analyze what the model investigated, verified, assumed, or skipped.Designing and building container-based (Docker) technical benchmarks used to test AI models.Writing clear, original technical rationales explaining why code fails (all written work must be self-authored without AI text generators).Collaborate asynchronously with AI researchers to share findings and refine evaluation criteria.Work across multiple programming languages and unfamiliar codebases as needed.Target Profile:8+ years of production engineering experience preferred (exceptions only for clearly exceptional profiles).Backgrounds including Senior, Staff, or Principal Software Engineers, Tech Leads, or Open-Source Maintainers.Extensive hands-on code review experience.Experience working in production codebases with a strict code review culture (startups, big tech, or open source are all acceptable).Polyglot adaptability: Heavy experience with Python and TypeScript is common but must be comfortable dropping into unfamiliar languages weekly.Core Tooling: Hands-on command of Docker, git, and local CLI terminal debugging to reproduce results locally.Cross-Layer Fluency: Comfort working across backend, frontend, APIs, data, testing, or developer tooling.Strong written communication skills - able to articulate why code fails, not just how to fix it quickly.