Node.js Developer/Senior Full-Stack Developer

Node.js Developer/Senior Full-Stack Developer

Location: New York City, NY, 10001 (5 days Onsite per week)

Duration: 6 months plus possible extension

About the Role

We're seeking an experienced Senior Full-Stack Developer to join our healthcare automation team. This role requires someone who can think critically about architecture decisions, question existing patterns, and contribute to the evolution of our medium-maturity codebase. You'll work on a sophisticated prior authorization automation platform that processes thousands of healthcare transactions daily.

Required Experience

• 5+ years of professional software development experience with demonstrated expertise in complex, production-scale applications.

Technical Stack (Experience Required)

• Backend: Node.js, TypeScript, PostgreSQL, Redis, BullMQ
• Frontend: React.js, Next.js, TailwindCSS
• Infrastructure: AWS (EC2, RDS, S3, Cognito), Docker, PM2 - IaC: Terraform/OpenTofu, Terragrunt
• Testing: Jest with real database integration Core Responsibilities Architecture & Design

Job responsibility

• Analyze and improve our event-driven architecture using outbox patterns
• Optimize multi-step workflow orchestration systems
• Design scalable solutions for healthcare data integration
• Question existing patterns and propose architectural improvements Technical Implementation
• Implement complex business logic in our repository pattern architecture
• Build robust error handling and retry mechanisms
• Create efficient database queries and optimize PostgreSQL performance
• Develop resilient queue-based processing systems Integration & External APIs
• Integrate with healthcare services (Stedi EDI, CloudCruise, RapidClaims)
• Handle real-time eligibility verification and prior authorization submissions
• Implement complex data transformation and normalization - Build robust API clients with proper error handling Code Quality & Documentation
• Write comprehensive JSDoc documentation for all functions
• Implement proper TypeScript typing throughout the codebase
• Create maintainable, testable code following established patterns
• Document architectural decisions and technical trade-offs

Critical Thinking Requirements

• We prioritize candidates who will: - Ask "why" before "how"
• Understand business context before implementing solutions
• Challenge existing patterns
• Identify when legacy approaches need modernization
• Think holistically
• Consider system-wide impacts of local changes
• Propose improvements
• Suggest better architectural approaches
• Communicate clearly
• Explain technical decisions to both technical and non-technical stakeholders

Must-Have Skills

• Strong English communication (written and verbal)
• ability to participate in architectural discussions
• Critical thinking
• analyze problems systematically and propose multiple solutions
• Database expertise complex PostgreSQL queries, transaction management, performance optimization
• Event-driven architecture
• understanding of outbox patterns, message queues, distributed systems Error handling
• implementing resilient systems with proper retry logic and failure handling
• Code documentation - writing clear, comprehensive documentation for complex systems

Nice-to-Have Experience

• Healthcare domain knowledge (HIPAA, prior authorization, EDI/X12