Principal Engineer (backed by Y Combinator, $5M+ ARR, $23M+ raised) at Legion Health · LumiJobs

Responsibilities

The center of gravity is GTM and company leverage. You should constantly be asking: where are we losing patients, revenue, speed, quality, or focus, and what can I build, automate, analyze, or fix this week to move the company forward?
The best candidates are likely 0-3 years out of school, with a computer science, engineering, data science, operations research, financial engineering, applied math, statistics, economics, or similarly rigorous background. You may have early experience in consulting, banking, finance, startups, product, data, or engineering. What matters most is raw intelligence, speed, taste, grit, communication, AI fluency, and demonstrated ability to make things.
This is a career-accelerating role for someone who wants unusual exposure very early. You will be in the room for meaningful company decisions, work directly with senior leaders, get tough deadlines, and learn by doing real work that matters.
✅ Responsibilities and Deliverables
Work directly with founders and leadership on high-priority projects across GTM, growth, revenue, business operations, regulatory, finance, hiring, culture, legal, investor relations, product, and internal systems.
Drive go-to-market and revenue projects across new patient acquisition, conversion, retention, reactivation, referrals, lifecycle, pricing, patient experience, and funnel optimization.
Build AI-native tools, workflows, dashboards, scripts, agents, prototypes, and automations that help teams operate faster and better.
Rapidly prototype solutions for non-technical teams so they can clarify what they want before full engineering resources are used.
Identify bottlenecks across the company, diagnose root causes, and build fast solutions: models, dashboards, workflows, memos, trackers, experiments, or internal products.
Use AI coding and building tools like Codex, Claude Code, Cursor, Replit, v0, Lovable, ChatGPT, Claude, Perplexity, APIs, scripts, and no-code tools to move faster than a normal early-career operator.
Build internal systems for leadership: synthetic advisory boards, investor update workflows, meeting-prep agents, board-material review systems, recruiting trackers, finance dashboards, GTM dashboards, and executive decision-support tools.
Support strategic finance work: revenue models, CAC/payback analysis, hiring plans, budget scenarios, growth forecasts, investor updates, board materials, and operating reviews.

Principal Engineer (backed by Y Combinator, $5M+ ARR, $23M+ raised)

Responsibilities

Benefits

Company

Legion Health

More roles at Legion Health