Lead the rearchitecture and implementation of Arcadia's User Management system, focusing on authentication and authorization frameworks. Drive new systems and mentor engineers to ensure secure data access and operational excellence.
Arcadia is dedicated to happier, healthier days for all. We believe that there is a better healthcare world – one powered by data. Our platform transforms complex, diverse data into a unified foundation for health, helping organizations deliver better care, boost revenue, and lower costs.
We’re a team of fiercely driven individuals committed to making healthcare more sustainable—and we’re looking for passionate people to help us get there.
For more information, visit arcadia.io.
Why This Role Is Important to Arcadia
Arcadia’s mission is to improve healthcare outcomes through better data and smarter technology. A critical pillar of this mission is the User Management system, which governs authentication, authorization, and user provisioning across all Arcadia’s applications.
We’re looking for a Principal Software Engineer to take technical ownership of this area—leading the rearchitecture and implementation of a robust, scalable, and secure access control framework. By the time you join, the team will have completed key architectural planning decisions; your focus will be on translating that architecture into reality.
This is a backend-leaning full stack role (approximately 60/40) requiring deep distributed systems expertise and an ability to balance implementation detail with architectural vision.
What Success Looks Like
In 3 months
- Ramp up on the existing User Management system, including authentication (Auth0, SAML 2.0), authorization models, and event-driven user provisioning workflows
- Complete design handoff for the new access and grants architecture, collaborating closely with product and platform teams to understand business and security requirements
- Begin staged implementation of the new system, focusing on core backend services and foundational APIs
In 6 months
- Lead the implementation of a database-backed access control framework that replaces legacy patterns and improves performance, consistency, and scalability
- Drive integration of new user and access models into key Arcadia applications, ensuring minimal disruption for internal and external users
- Collaborate with SRE and infrastructure teams to strengthen IaC, deployment automation, and observability for User Management services
In 12 months
- Own and operate a fully modernized User Management system that delivers secure, reliable, and high-performance authentication and authorization at scale
- Introduce a centralized JWT validation and API gateway strategy to unify access control across services and reduce duplication of logic
- Establish technical and operational excellence practices—measurable improvements in reliability, latency, and operational efficiency
- Mentor engineers and guide teams across Arcadia in secure, distributed, and scalable system design
What You'll Be Doing
- 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
What You'll Bring
- 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
Would Love for You to Have
- Experience modernizing identity and access systems or other critical, cross-cutting platform services
- Familiarity with API gateway design, centralized JWT validation, and event-driven architectures
- Exposure to data streaming or message-driven systems (Kafka, Kinesis, SNS/SQS)
- Experience in healthcare technology, HIPAA compliance, or other regulated data environments
- Polyglot engineering experience—comfort working across multiple languages and frameworks (e.g., Python, Java, Go) when solving complex distributed system challenges
- Experience working with high-scale analytics platforms or distributed data processing frameworks (e.g., Apache Spark jobs), especially in environments integrating operational and analytical data pipelines
What You'll Get
- 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
- 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
About Arcadia
Arcadia.io helps innovative providers and payers across the country transform healthcare to reduce cost while improving patient health. We do this by aggregating large amounts of disparate data, applying algorithms to identify opportunities to provide better patient care, and making those opportunities actionable by physicians at the point of care in near-real time. We are passionate about helping our customers drive meaningful outcomes. We are growing fast and have emerged as a market leader in the highly competitive population health management software market and have been recognized by industry analysts KLAS, IDC, Forrester, and Chilmark for our leadership. For a better sense of our brand and products, please explore our website.
Protect Yourself
If you have concerns about the authenticity of a job offer or recruitment-related communication claiming to be from Arcadia, we encourage you to verify by contacting us directly at (781) 202-3600 and select option 3. For more information, visit our website.
This position is responsible for following all Security policies and procedures in order to protect all PHI under Arcadia's custodianship as well as Arcadia Intellectual Properties. For any security-specific roles, the responsibilities would be further defined by the hiring manager.
Top Skills
Angular
Auth0
AWS
Jwt
Nestjs
Node.js
Oauth2
Postgres
React
Saml 2.0
Terraform
Typescript
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