Full Stack Developer
Nick ..United StatesSENIORPosted 10d ago
ReactNext.jsNode.jsNestJSTypeScriptAWS LambdaServerless ArchitecturePostgreSQLAurora PostgreSQLAmazon S3CognitoAPI GatewayREST APIKafkaAWS MSK
About the Role
We are looking for an experienced Full Stack Developer to work directly with the client’s existing team on migrating a Mendix-based auction platform to a modern, cloud-native AWS architecture.
Key Responsibilities
• Lead full-stack application development and architecture
• Design scalable, secure AWS serverless applications
• Implement authentication and authorization using Amazon Cognito
• Handle concurrency, race conditions, and transaction management in bidding systems
• Optimize PostgreSQL queries, indexing, connection pooling, and application performance
• Troubleshoot Lambda cold starts and improve serverless performance
• Collaborate directly with the client’s existing team during EST business hours
Requirements
• Strong experience with React / Next.js
• Backend development using Node.js / NestJS and TypeScript
• Hands-on expertise in AWS Lambda and Serverless Architecture
• Strong database experience with PostgreSQL / Aurora PostgreSQL
• Experience with Amazon S3, Cognito, and API Gateway
• Strong experience building and integrating REST APIs
• Kafka / AWS MSK experience is a plus
Ideal Candidate: Senior-level / Lead consultants with strong hands-on development experience, solution architecture knowledge, problem-solving skills, and excellent communication.