About Bespoke LabsBespoke Labs is an AI research and data company building the datasets, benchmarks, and evaluation infrastructure that power frontier AI models. We're backed by leading investors, trusted by top AI labs, and have research accepted at venues like ICLR 2026. Our team is small, moves fast, and has an outsized impact on how the next generation of AI is built.The RoleWe're hiring mid-level software engineers across all core coding disciplines. Whether you build backend APIs, data pipelines, ML tooling, or full-stack products — if you write clean code and care about impact, we want to hear from you.What You'll DoOwn meaningful technical work end-to-end — from design through deploymentBuild and maintain backend services, APIs, and data pipelinesCollaborate with researchers and ML engineers to ship high-impact featuresContribute to architectural decisions, not just implement themWrite clean, well-tested, well-documented codeDebug and resolve issues across complex distributed systemsParticipate in code reviews and help raise the technical barWhat We're Looking For3–5 years of professional software engineering experienceStrong foundations in your core domain — backend, data, ML tooling, or full-stackProficiency in Python and fluency in at least one additional language (TypeScript, Go, Rust, SQL, etc.)Experience working in production environments with real usersComfort with ambiguity and ability to operate autonomouslyStrong communication skills and collaborative working styleGenuine interest in AI, LLMs, or data-driven systemsNice to HavePrior experience at an AI, ML, or data companyFamiliarity with LLM training, fine-tuning, or RLHF pipelinesExperience with large-scale data pipelines or annotation platformsOpen-source contributions or published technical writingBackground working alongside AI research teamsWhat We OfferCompetitive compensation and meaningful equityDirect impact on how frontier AI models are builtFlexible, remote-friendly environment with low bureaucracyA small, high-caliber team with deep AI research expertiseHealth, wellness, and learning & development benefits