Develop and maintain serverless backend services and microservices for a multi-tenant POS platform.
Design, build, and maintain highly scalable, reliable, and performant backend systems.
Leverage AWS services (e.g., Lambda, API Gateway, SQS, SNS, DynamoDB, OpenSearch, S3) to architect robust and event-driven infrastructure.
Build real-time communication layers using WebSocket (via AWS API Gateway + Lambda).
Define infrastructure using AWS CDK with best practices for IaC.
Integrate with external services such as payment gateways (Clover, TYSYS,...), SMS gateways (Twilio), and FCM push notifications.
Identify and resolve bottlenecks, bugs, and production incidents quickly and efficiently.
Write clean, maintainable, and well-documented code following modern
software engineering practices.
Collaborate closely with frontend/mobile engineers, QA, product managers, and
designers.
Participate in code reviews and contribute to knowledge sharing across the team.
Maintain high test coverage through unit and integration tests (Jest or equivalent).
Bachelor's degree in Computer Science, Information Technology, or related field.
At least 2-5 years of experience building backend services using JavaScript/TypeScript with [protected info]
Proven hands-on experience with AWS serverless ecosystem: Lambda, API Gateway, DynamoDB, S3, SQS, SNS, EventBridge, OpenSearch.
Strong understanding of WebSocket protocols and handling real-time data pipelines.
Experience with CDKfor infrastructure management.
Familiarity with designing NoSQL schemas for high-performance querying in a multi-tenant environment.
Solid foundation in system design, data structures, and algorithms.
Experience working in agile development teams, using tools like GitHub, JIRA, Notion.
Understanding of security best practices in authentication (JWT), data protection, and API gateway policies.
Familiarity with observability tools like AWS CloudWatch, X-Ray, and Sentry.