Senior Full Stack Developer - React.js/Node.js

The Role :

We're seeking a Senior Full-Stack Developer (8+ Years) to lead the design and implementation of four independent React SPAs backed by Node.js microservices. You'll work alongside our AWS Solutions Architect to modernize a legacy Salesforce-based system while maintaining HIPAA compliance and zero downtime for active providers.

Required Qualifications :

- 5+ years building production React applications

- 5+ years building production Node.js applications (Express or similar)

- 3+ years working with PostgreSQL or similar relational databases

- 2+ years AWS cloud services (EC2, ECS, RDS, S3, IAM, CloudWatch)

- 2+ years leading or mentoring other developers

- Proven ability to ship features end-to-end (design - deployment)

- Experience migrating legacy systems to modern architectures

Technical Stack :

- Frontend : React 18+, TypeScript, Tailwind CSS, TanStack Query, Redux/Zustand

- Backend : Node.js, Express.js, PostgreSQL, Redis

- Cloud : AWS (ECS/Fargate, RDS, S3, CloudFront, CloudWatch, SNS/SQS)

- DevOps : Docker, GitHub Actions, Terraform/CloudFormation

- Tools & Monitoring : Datadog/CloudWatch, Sentry, GitHub, Jira

Preferred Qualifications :

- Healthcare/HIPAA experience - Previous work on HIPAA-compliant systems

- Salesforce integration - Experience with Salesforce REST APIs, OAuth, JWT

- GraphQL - Query language experience

- Microservices architecture - Built or worked with microservices systems

- AWS Advanced - Lambda, SNS/SQS, Cognito, API Gateway

- Data-heavy applications - Built systems handling 100M+ records, complex reporting

- Claims processing - Understanding of healthcare billing, claims workflows, RCM

- ABA therapy domain - Knowledge of autism therapy, therapy management, insurance billing

- Distributed team experience - Worked across US/India time zones, asynchronous collaboration