Tech Lead, Agentic Engineering

At Sema4.ai, we're building an Enterprise AI Agent platform that reinvents how knowledge work happens—how people and AI agents collaborate to get work done better and faster. You'll be the hands-on leader responsible for building the core of our product: the Agent framework.

We're looking for a Technical Lead who can architect cutting-edge AI systems while remaining hands-on with implementation. You'll guide the technical direction of our agent framework while mentoring senior engineers and driving engineering excellence across the team.

GenAI Expert : You understand how to use LLMs (and other cutting-edge models) to do useful work . You know the common challenges around using LLMs in enterprise settings, the most useful context management strategies, prompting strategies, and the nitty-gritty API-level details such as tool use, prompt caching, multi-modality, structured outputs, model-provider-specific differences, etc. You know the difference between top-p and temperature and you’ve maybe seen emerging works (like min-p). You use this significant base of understanding to drive useful outcomes in unique ways that non-experts in GenAI simply can’t.

Technical Visionary : You can see around corners in the AI space. You understand not just current capabilities but where the field is heading. You make architectural decisions that will scale as models improve. You’ve grown with the field, tracking key changes, and implementing them when they make sense (avoiding the hype and creating clarity through your vision). You’re the kind of person who may have skipped on GraphRAG after a closer look, anticipated the emergence of truly long context models, and paid close attention to Anthropic’s excellent blog on SOTA retrieval techniques.

Hands-On Builder : You write production code daily. You lead by example, contributing to the most challenging technical problems while establishing patterns for others to follow. You act as a force multiplier to the team around you.