
Principal Software Engineer – Full Stack, Backend-Focused
Arcadia
full-time
Posted on:
Location Type: Remote
Location: Massachusetts • United States
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Salary
💰 $200,000 - $240,000 per year
Job Level
About the role
- Leading the rearchitecture and implementation of the User Management platform—the foundation for authentication, authorization, and access control across Arcadia products
- Building backend services and APIs (NestJS, TypeScript, PostgreSQL) supporting secure, multi-tenant access models
- Designing distributed, event-driven systems to synchronize user data and access events across Arcadia applications
- Driving modernization of existing authentication and provisioning flows (Auth0, SAML 2.0, OAuth2, JWT)
- Managing cloud infrastructure through Infrastructure-as-Code (Terraform) and AWS-native services (ECS, S3, SNS, Aurora)
- Defining SLOs and designing telemetry for key features, ensuring robust monitoring, canary, and standard rollout strategies
- Partnering with cross-functional stakeholders—including Product, Security, and SRE—to ensure alignment between technical execution and organizational priorities
- Providing leadership, mentorship, and clarity in complex, ambiguous problem spaces
- Joining the engineering on-call rotation, contributing to the reliability and operational excellence of the User Management platform and related services
- Ensuring that documentation, operational runbooks, and best practices are well maintained and available for peers and downstream teams
Requirements
- 10+ years of professional full-stack software engineering experience with a focus on backend and distributed systems
- Proven success building and scaling identity and access management systems, including authentication (SAML 2.0, OAuth2, JWT) and fine-grained authorization frameworks
- Expertise in TypeScript, Node.js/NestJS, and modern React/Angular development for full stack delivery
- Strong command of cloud architecture (AWS preferred) and IaC practices with Terraform
- Deep experience with relational and NoSQL data stores, designing for vertical & horizontal scalability and high availability
- Demonstrated ability to own complex systems from design through rollout and post-release operation, with strong attention to quality and reliability
- Excellent collaboration skills and the ability to work across engineering, product, and SRE teams to deliver cohesive, secure systems
- Strong communication and architectural reasoning skills—able to balance pragmatism with long-term technical health
- Passion for mission-driven work improving healthcare outcomes and enabling data-driven care delivery
Benefits
- Competitive compensation, comprehensive benefits, and Flexible Time Off (~22-day company average)
- A collaborative, remote-friendly engineering culture that values innovation, curiosity, and technical excellence
- The opportunity to own one of Arcadia’s most critical platform domains and drive its evolution for scale and reliability
- A mission-driven culture where your work improves patient outcomes and healthcare delivery
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
TypeScriptNode.jsNestJSPostgreSQLAuth0SAML 2.0OAuth2JWTTerraformAWS
Soft Skills
leadershipmentorshipcollaborationcommunicationarchitectural reasoningproblem-solvingattention to qualityattention to reliabilitycross-functional teamworkability to work in ambiguity