Senior Member of Technical Staff
Job in
San Francisco, San Francisco County, California, 94199, USA
Listed on 2026-04-22
Listing for:
Harper (YC W25)
Full Time
position Listed on 2026-04-22
Job specializations:
-
Software Development
AI Engineer, Software Engineer, Software Architect, Senior Developer
Job Description & How to Apply Below
Problem
36 million businesses in America need insurance—it’s not optional.
77% are underinsured. 40% have no coverage distribution system failed them: too slow, too opaque, too confusing.
The difference between MTS and Senior MTS: you own outcomes, not tasks. You look at a business problem—"we need to 10x our quoting capacity"—and figure out what to build, build it, and make sure it works. You architect systems AND implement them. You mentor by building alongside people, not by reviewing PRs from a distance.
The RoleThis isn’t a “tech lead who attends meetings” role. You make architectural decisions that stick, and ship code that directly generates revenue. No waiting for consensus—we don’t have time for consensus.
What You’ll Do- Own core AI infrastructure — LLM orchestration, prompt management, retrieval systems, structured output parsing
- Design agent architecture — Define abstractions that let us ship new agents in days
- Build evaluation that works — Systems that measure whether agents are getting better at closing deals
- Architect decision trace capture — Make every AI judgment traceable
- Own platform scale — Thousands of concurrent conversations, sub‑second response times
- You’ve owned production systems (not contributed to—owned; you got paged when it broke)
- You architect AND implement—the best architecture comes from people who live with what they build
- You’ve built AI systems in production (LLM applications, agent frameworks, RAG, voice AI)
- You write code with AI (Cursor, Claude Code) and manage multiple sessions
- You’re 3‑6 years into your career
- 3-6 years software engineering experience
- Production experience with LLM applications and AI systems
- Strong architectural skills with hands‑on implementation
- Track record of owning systems end-to-end
- Based in San Francisco or willing to relocate
- Voice AI or real‑time systems experience
- Experience building agent frameworks or evaluation systems
- Prior startup experience
- Salary: $160,000–$230,000 + performance bonuses & equity
- Location:
San Francisco, in‑office
- Health, dental, and vision insurance
- Commuter benefits
- Team meals and snacks
Position Requirements
10+ Years
work experience
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