Principal Platform Engineer, Core Platform

The role

You will be the technical lead for the AI-Native SDLC initiative and own critical architecture decisions. You will build patterns, services, and guardrails to make other engineering teams faster, safer, and more consistent.

What you will do

• Lead the AI-Native SDLC initiative including quality gates and test foundations
• Own the team roadmap and intake
• Run the team delivery including planning, refinement, and cycle cadence
• Build authentication and authorization for the platform
• Shape the gradual decomposition of the monolith into services
• Facilitate the Architecture Advice Guild rituals and provide technical direction
• Raise the bar for plan authoring and agent orchestration
• Keep platform services reliable through SLOs, monitor-gated deploys, and incident leadership
• Drive technical evaluation for procurement and renewals of critical platform vendors

Required qualifications

• 10+ years of software engineering experience
• Ownership of platform or distributed systems architecture at company scale
• Hands-on experience leading a delivery engineering or developer productivity transformation
• Experience evolving a large monolith toward services incrementally
• Experience with skills, MCPs, harnesses, agentic tooling ecosystems, or agent orchestration for software development
• Track record of technical leadership without people authority
• Experience owning a team roadmap
• Build with AI agents as part of daily work
• Experience bringing AI into a team's lifecycle beyond personal use
• Proficiency in Python and/or TypeScript services, Postgres, and AWS
• Comfort operating production critical-path systems, including on-call, in a regulated environment
• Located within 75 minutes of NYC office and able to work 4+ days/week in office

Nice to have

• Auth0 FGA, OpenFGA, or other Zanzibar-style authorization systems in production
• Progressive delivery tooling (Argo Rollouts, feature flags, merge queues) and end-to-end frameworks such as Playwright at scale
• Remote coding agents (Claude, OpenCode, Cursor background agents, or similar) running in a managed environment
• Healthcare data standards (FHIR, HL7v2) and engineering in a HIPAA-regulated environment
• Time as a people manager for senior or staff level engineers
• Prior work on a platform engineering team
• Fluency with domain-driven design or event storming

Benefits

• Comprehensive benefits to all full-time, exempt employees
• Stock options

About the company

Charlie Health connects the world to life-saving behavioral health treatment through personalized, virtual care. The organization focuses on people with complex needs to expand access to meaningful care.