Founding AI Engineer

Fulkrum is building a network of domain experts to craft post-training data and evals for AI copilots and agents. We're looking for a Founding Engineer to build the agentic systems that power our core operations - turning messy human workflows into reliable, scalable infrastructure. You'll move fast, own outcomes end-to-end, and shape how the company operates from day one.What you'll buildExpert sourcing ops - build systems for outreach, qualification, onboarding, and ongoing engagement of domain experts across Consulting, IB, PE, Accounting, Legal, and Finance.Internal tooling - create the dashboards, pipelines, and integrations that let a small team operate with the leverage of a much larger one.Quality infrastructure - automate rubric evaluation, gold-standard checking, and audit trails so quality is a system property, not a manual task.Data ops automation - design and build agentic workflows that automate how we assign, review, and deliver expert-annotated datasets at scale.Research - Training Small Language Models on expert datasetsYou might be a fit if youHave 2–5 years of software engineering experience at a fast-moving startup or in a role with broad ownership.Have built LLM-powered workflows, agents, or automation pipelines (LangChain, CrewAI, custom orchestration, etc.).Are comfortable going from a vague problem to a working system with minimal guidance.Have strong opinions about tooling and systems, and can articulate trade-offs clearly.Nice to haveFamiliarity with post-training data formats (SFT, DPO, RLHF).Prior founding or early-stage startup experience.

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