Sr. Backend/API Engineer

Insight Global is seeking a Backend/API Developer for a top enterprise client. This candidate will join a cross-functional development team building a centralized customer domain and shared services that support applications across the organization. The primary focus will be designing and developing highly scalable, enterprise-level APIs using Node.js, AWS Lambda, API Gateway, Step Functions, and PostgreSQL/RDS. The ideal candidate brings deep backend expertise, understands database performance and observability, and can take true ownership of application quality and maintainability. Experience with Kafka, DynamoDB, S3, and front-end development will be valuable as the platform continues to evolve. Day-to-Day: * Build enterprise-level APIs for a centralized customer domain * Develop shared backend services that provide customer-specific information to front-end applications across the enterprise * Design and develop APIs using Node.js, AWS Lambda, and API Gateway * Build scalable, reliable backend services rather than application-specific BFFs * Work with Step Functions, PostgreSQL/RDS, S3, and potentially Kafka/DynamoDB * Optimize database and application performance * Improve application observability, maintainability, and reliability * Own development quality from design through ongoing application support * Collaborate with a team of 3 developers, 1 QA, 1 Product Owner, and 1 Analyst * Contribute to front-end work as needed, while maintaining a primary backend focus

• Strong backend engineering experience with a focus on enterprise-level APIs
• Strong Node.js
• Hands-on AWS Lambda development
• API Gateway
• AWS Step Functions
• RDS / PostgreSQL
• S3
• Kafka
• DynamoDB
• Experience designing and building scalable backend services
• Strong understanding of the database layer, including performance optimization
• Experience with observability, application maintenance, and production ownership
• Ability to go beyond surface-level technical knowledge and explain architecture/design decisions in depth
• Experience delivering high-quality, maintainable applications
• Front-end development experience
• Experience integrating Kafka with DynamoDB
• Previous experience building shared services or customer-domain platforms used across multiple applications