[Remote] Principal Software Engineer, User Management

Note: The job is a remote job and is open to candidates in USA. Arcadia is dedicated to happier, healthier days for all, believing in a better healthcare world powered by data. They are seeking a Principal Software Engineer to take technical ownership of the User Management system, leading the rearchitecture and implementation of a secure access control framework.

Responsibilities

• Leading the rearchitecture and modernization of the User Management platform — authentication (Auth0, SAML 2.0, OAuth2, JWT), authorization, access control, and user provisioning across Arcadia products
• Building backend services and APIs across a polyglot stack (TypeScript/NestJS, Go, Python) supporting secure, multi-tenant access models
• Owning Auth0 tenant management, cross-application SSO, and session infrastructure — including SAML integrations, identity provider relationships, and Hydra session management
• Managing cloud infrastructure through Infrastructure-as-Code (Terraform/Terragrunt) and AWS-native services (Lambda, API Gateway, DynamoDB, Cognito, SNS)
• Defining SLOs and designing telemetry for key features, ensuring robust monitoring, canary, and standard rollout strategies — with shared ownership of on-call reliability
• 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

Skills

• 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
• Hands-on experience with agentic AI-assisted development — actively using agentic coding tools, context-engineered environments, and AI-augmented workflows, with a track record of independently shipping AI-native tooling and defining how teams leverage AI strategically
• 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
• Strong communication, collaboration, and architectural reasoning skills — able to work across engineering, product, SRE, and security teams while balancing pragmatism with long-term technical health
• 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 — comfortable working across multiple languages and frameworks (e.g., Python, Java, Go) when solving complex distributed system challenges
• Experience building internal developer tooling, custom agents, or platform-level AI integrations that go beyond individual productivity — shaping how an engineering organization adopts and scales AI-assisted development

Benefits

• Flexible Time Off (~22-day company average)
• Competitive compensation, comprehensive benefits
• A collaborative, remote-friendly engineering culture that values innovation, curiosity, and technical excellence
• A team that is actively investing in AI-augmented engineering practices — you won't just use these tools, you'll help define how the organization adopts them

Company Overview

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