Principal Software Engineer - Agent AI Platform

The role

You will evolve and run Arcadia's agent platform, which product teams use to build and ship AI agents on Arcadia's data. You will also harden the infrastructure under it and set technical standards for building with AI.

What you will do

• Evolve and run the agent platform for internal and client-facing use, including the runtime, SDKs, templates, and paved paths; write a meaningful share of the code
• Stand up and harden infrastructure: IaC, network topology, security controls, and operational tooling, with SRE
• Make quality attributes platform defaults: evals and regression gates, guardrails, tracing and telemetry, resiliency patterns
• Design for a regulated industry: PHI isolation, least-privilege agent identity, audit trails, and human review
• Run the platform as an internal product and measure adoption and developer experience
• Partner with domain teams on their hardest agent use cases and turn what you learn into platform capability
• Own the platform in production: SLOs, on-call, incident response, and postmortems
• Set the technical bar for building with AI and coach Senior Engineers through design partnership and review

Required qualifications

• Platforms you have built and run that other engineering teams adopted, with results you can show
• Deep foundations in cloud-native distributed systems, data infrastructure, and service architecture
• Hands-on infrastructure depth: IaC, cloud, security architecture, and running production systems
• Current, hands-on production coding
• Passion for developer experience (DevEx/DevProd) as a discipline
• Writing clear enough to set standards beyond your own work, with influence from credibility rather than title

Nice to have

• Experience with production LLM or agent deployments beyond demos
• Regulated-data experience (HIPAA, PHI, SOC 2 or HITRUST environments)
• A public voice through talks, writing, or open source

Benefits

• The opportunity to own one of Arcadia's most consequential platform domains and set its direction
• Direct influence on how Arcadia's engineering org adopts AI
• Remote-first across the US, with in-person hubs in Boston, DC, and NYC
• A flexible culture named a Built In 2026 Best Place to Work

Before you apply

• No healthcare background is required; Arcadia teaches the domain
• Arcadia advises verifying recruitment communications claiming to be from Arcadia by calling (781) 202-3600 and selecting option 3

About the company

Arcadia.io helps providers and payers transform healthcare by aggregating large amounts of data and making insights actionable at the point of care. It is a market leader in population health management software.