Senior ML Engineer

Hiring Company

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Why Join Us

• Shared intelligence layer that captures decisions and commitments across Slack, Figma, Notion, email, and more.
• Series A startup with $40M raised, led by Khosla Ventures with General Catalyst and Valor Equity.
• Led by CEO Sergei Sorokin, former Discord VP Product who scaled Discord to 300M+ users.
• Building an intelligent operating system for teams and AI agents to eliminate the coordination tax.

Role Responsibilities

• Design, build, and optimize ML pipelines for context retrieval, action detection, and output generation
• Implement and iterate on RAG systems, ranking models, and prompt engineering to improve quality
• Build comprehensive evals and monitoring to measure and improve ML system performance
• Investigate alternative models and fine tuning approaches for our heavy background processing workloads, implementing better systems to increase quality while improving cost efficiency
• Collaborate with Backend and Product Engineering to ship AI powered features
• Contribute to ML infrastructure decisions and best practices across the engineering org
• Stay current on LLM advances, retrieval techniques, and ML tooling; bring insights back to the team

Qualifications

• 4+ years in ML/AI engineering, with significant experience shipping production systems
• Strong software engineering fundamentals: you write clean, maintainable code
• Deep experience with retrieval, ranking, RAG, or search systems at scale
• Hands on proficiency with PyTorch, vector databases, and modern ML infrastructure
• Experience with LLM applications (prompt engineering, fine tuning, eval frameworks)
• Product thinker: understands how to connect great ML products to constraints, evals, and modeling when building them
• A bias toward action: you ship fast, measure rigorously, and iterate based on data
• Ownership mentality (no task is too small for you) – it's all hands on deck here and we need everyone rowing the boat
• Excellent communication skills and a collaborative mindset – we're extremely lean so we're looking for a team player who works well with others
• Type-A tendencies: maybe you're extremely detail-oriented. Or maybe you take pride in shipping high-quality products. Whatever it is you do, you give it your all
• Must be based in or willing to relocate to SF – although we're flexible with days off & schedules, we have a 100% in-office culture during the week