Minjurul Haque

Senior Full-Stack Developer

NeoVista® • Fulltime

Jan 2024 - May 2026 • 2 yrs 4 mos

Architected and implemented a microservices platform using NestJS and RabbitMQ, improving system modularity, scalability, and operational maintainability. • Led the redesign of the authentication and authorization infrastructure using OAuth 2.0 and RSA-based security mechanisms. • Designed caching and data-access optimization strategies using Redis and PostgreSQL, reducing API response times from 450ms to 180ms. • Provided technical leadership through code reviews, architecture discussions, and mentoring of junior engineers. • Established CI/CD workflows with GitHub Actions and Jenkins, improving deployment reliability and streamlining software delivery.

Back-End Developer

PadelBlast • Fulltime

Dec 2022 - Nov 2024 • 1 yr 11 mos

Led the re-architecture of a monolithic Node.js application into event-driven microservices using RabbitMQ, enabling independent deployments, improved fault isolation, and better maintainability. • Implemented centralized error handling, structured logging, and distributed tracing using the ELK stack, enhancing observability and accelerating issue diagnosis. • Optimized PostgreSQL queries and introduced connection pooling to improve database performance and resource utilization. • Established code quality standards using SonarQube, automated testing with Jest, and CI-based quality gates to improve code reliability and maintainability. • Collaborated with mobile and frontend teams to design and implement a GraphQL federa- tion layer, simplifying data access and improving API efficiency

Back-End Developer

Euphorie Tech • Fulltime

Feb 2021 - Sep 2022 • 1 yr 7 mos

Designed a serverless data pipeline using AWS Lambda and SQS to process large IPO datasets with reliable asynchronous processing and scalable execution. • Built a high-frequency web crawler and GraphQL API using AWS Amplify to deliver real-time market intelligence and structured financial data. • Developed and maintained backend services using Node.js, TypeScript, and PostgreSQL, focusing on API reliability, performance, and clean architecture. • Implemented data processing workflows, API integrations, and database optimization strategies to improve application performance and maintainability. • Collaborated with frontend and product teams to design API contracts, troubleshoot production issues, and deliver new backend features.