Principal Engineer specializing in Pipeline Integrity Services within the Oil & Gas sector. Involves customer communication, project execution, and mentoring junior engineers as part of ROSEN’s Engineering Team.
About the role
- Lead Engineer implementing growth strategies to optimize customer acquisition and retention for telehealth startup Maximus. Manage engineering team and direct technical experiments for product growth.
Responsibilities
- Deliver protocol-level A/B experiments on signup flows, checkout, plan pricing, and product recommendations using Amplitude
- Ship full-stack features across the acquisition funnel in Rails and React
- Coach and develop your engineering team through regular 1:1s, pair programming, code reviews, and career conversations
- Own experiment design, including sample sizing, metric selection, and the CVR-vs-retention tension that comes with a dual mandate
- Iterate and continuously optimize plan and pricing architecture, including payment platform integrations
- Build and maintain the experimentation infrastructure your team runs on
- Partner with data engineering to instrument cohort-level M1 retention tracking per experiment
- Drive adoption of AI-assisted development across the team, using tools like Claude Code and Devin to increase shipping and development velocity
Requirements
- You've led a team of 4-8 engineers before, with direct reports you grew and retained
- You've shipped and measured growth experiments in a subscription product (signup funnels, checkout optimization, pricing and plan architecture)
- You write production Ruby on Rails and React code and expect to keep doing so (strongly preferred). Javascript (Node), Python are also acceptable.
- You can design an experiment, pick the right metric, set a sample size, and explain the trade-offs to a PM who wants to ship faster
- You think in funnels and cohorts, not just features
- You're comfortable with event-sourced systems or similar architectural patterns where state is derived from event streams
- You use agentic AI coding tools (Claude Code, Devin, Cursor, or similar) in your daily workflow and have opinions about how to integrate them into a team's development process
- Nice to have (strongly preferred):
- Experience with healthcare, wellness, or regulated subscription commerce
- Familiarity with Stripe billing, Klarna, or similar payment platform integrations
- Experience building or managing Amplitude (or LaunchDarkly, Optimizely, etc.) experimentation infrastructure
Benefits
- Full suite: health, medical, dental coverage (USA & Canada)
- Flexible vacation/time-off policies
- Equity into the company in the form of high potential stock options
- Liquidity of options whenever available
- Extended options exercise window for loyal employees (3 months for every year of service; e.g. 1 year for 4+ year employees)
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