Senior Back-End Engineer
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Job Description
Senior back-end engineer building TypeScript and Node.js services for Virtasant’s enterprise healthcare operations platform. Developing APIs, integrations, decision services, and secure multi-tenant cloud infrastructure.
Responsibilities:
- Design, develop, and maintain scalable back-end services using TypeScript and Node.js for enterprise healthcare operations and workforce decisioning
- Build and maintain REST APIs using contract-first development practices
- Develop integrations with HR, ERP, and workforce-management platforms
- Implement idempotency, retries, event-driven processing, dead-letter queues, and reconciliation mechanisms
- Build and maintain decision services, business rules, and outcome-tracking capabilities
- Develop and support data services and pipelines
- Design and implement secure multi-tenant services with strict data isolation and access controls
- Build and maintain cloud-native services using Azure, AWS, or GCP, including containerized applications and automated CI/CD pipelines
- Implement unit, integration, and contract tests
- Collaborate with front-end engineers, data engineers, platform engineers, and client stakeholders
- Use AI-assisted development tools and coding agents while maintaining code quality and security
- Own services through design, implementation, deployment, monitoring, troubleshooting, and ongoing improvement
Requirements:
- Senior TypeScript and Node.js experience
- At least 5 years building production back-end services, with recent hands-on experience using TypeScript and Node.js
- Experience designing REST APIs using OpenAPI specifications and generating server types, clients, and tests from API contracts
- Understanding of API versioning and maintaining compatibility across consumers
- Experience building integrations that write data back into external enterprise systems such as HR, ERP, or vendor-management platforms
- Understanding of idempotency, retries, backoff, outbox patterns, dead-letter queues, and reconciliation
- Experience building multi-tenant SaaS services with strict tenant isolation across the data layer, authorization, and testing
- Production experience with Azure, AWS, or GCP, including OAuth 2.0, OpenID Connect, containers, and CI/CD
- Fluency in written and spoken English and comfort collaborating directly with US-based engineers and client stakeholders
- Availability around December 1, 2026
Benefits:
- Fully remote work arrangement
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