Senior Full Stack Engineer

Architected and deployed NestJS microservices on Azure Kubernetes Service (AKS) using Docker, enabling zero-downtime deployments and scalable horizontal auto-scaling for production workloads. Engineered distributed background job processing systems using BullMQ and Redis with retry handling, delayed jobs, cron scheduling, and resilient task execution across multiple services. Designed and implemented secure Stripe payment infrastructure supporting Payment Intents, recurring subscriptions, webhook processing, idempotent transaction handling, and automated user provisioning workflows. Developed secure RESTful APIs consumed by React.js and React Native applications, enforcing JWT-based authentication, role-based access control, and single-device login policies. Integrated NATS event bus and Socket.io to enable real-time cross-service communication, live notifications, and GPS-based fleet tracking systems using Google Maps APIs. Designed optimized relational database schemas using PostgreSQL and TypeORM with complex entity relationships (1:1, 1:N, N:N), improving query performance and data integrity. Applied MongoDB indexing and aggregation optimization strategies to reduce query latency and improve backend scalability across high-volume applications. Built and maintained enterprise CI/CD pipelines using Jenkins, GitHub Actions, and Azure DevOps, reducing deployment risks and accelerating release delivery cycles. Led HLD and LLD design sessions while mentoring junior developers on distributed systems, cloud-native architecture, microservices patterns, and payment integration best practices. Delivered production-grade AKS-based deployment ecosystems supporting scalable cloud-native applications with zero-downtime release strategies. Improved backend reliability and operational efficiency through resilient queue processing, automated retries, and event-driven microservice orchestration. Strengthened payment processing security and automation through Stripe webhook validation and idempotent transaction handling frameworks.

Deployed and managed cloud-native applications on AWS utilizing EC2, S3, API Gateway and IAM, ensuring high availability and security compliance. Developed scalable RESTful backend services using NestJS and Node.js across multiple enterprise-grade production applications. Containerized backend services using Docker and managed Kubernetes orchestration to improve deployment consistency and scalability. Implemented NATS and Socket.io for decoupled real-time communication across distributed microservices ecosystems. Designed high-performance MongoDB schemas using Mongoose with optimized CRUD operations, aggregation pipelines, and schema validation strategies. Developed Angular frontend modules using Angular v5–10, Angular Material, Reactive Forms, Auth Guards, HTTP Interceptors, and lazy-loading architecture patterns. Collaborated with cross-functional teams to deliver frontend and backend features aligned with enterprise delivery timelines and product requirements. Improved scalability and maintainability of backend services through Docker-based deployment standardization and Kubernetes orchestration. Delivered reusable Angular frontend modules improving development consistency and user experience across enterprise applications.