Senior Backend Engineer with 5+ years of experience in Python, FastAPI, Node.js, React.js, Next.js, and microservices architecture. Expert in cloud-native development, database design, and building scalable enterprise solutions.
Architecting scalable microservices and cloud-native solutions
Expert in designing and implementing microservices using Python (FastAPI), Node.js (NestJS), and Go. Building scalable, distributed systems with event-driven architectures.
Expert in PostgreSQL, MongoDB, Redis, and Elasticsearch. Designing efficient database architectures, optimizing queries, and implementing caching strategies for high-performance applications.
Expert in Docker, Kubernetes, and AWS. Implementing CI/CD pipelines, containerization strategies, and cloud infrastructure for scalable applications.
Proficient in React.js, Next.js, and JavaScript/TypeScript. Building modern, responsive frontend applications with server-side rendering and optimal user experiences.
Building innovative solutions across different domains
Core contributor to LambdaX enterprise contract-lifecycle-management platform. Designed and implemented agreement-header, line-item, dataset, and modification microservices. Built Redis Streams + Kafka fabric for high-throughput event propagation, sustaining >15k events/sec. Improved contract-search latency from ~750ms to <180ms through query optimization.
Led backend development for Member Lounge SaaS platform. Architected tiered subscription billing with Stripe integration, reducing revenue leakage to <0.5%. Built threaded discussion forum and RabbitMQ-driven notification engine, increasing average session time by 35%. Implemented MFA authentication and zero-downtime deployments, maintaining 99.9%+ uptime.
Built secure intranet desktop apps for Bangladesh Navy using Electron + React, meeting strict offline-capability and encryption requirements. Developed real-time dashboards with Socket.io auto-refresh. Introduced microservice decomposition with RabbitMQ event buses and Redis caching, reducing deployment time by 60%. Implemented CI/CD pipelines achieving daily release cycles.
Enterprise solutions and innovative applications
Enterprise Contract-Lifecycle-Management
B2B SaaS platform for Fortune-scale companies. Replaced scattered, email-driven contract processes with integrated SAP, Outlook, Teams, and DocuSign workflows.
UAE Corporate-Tax SaaS
FinTech micro-SaaS helping UAE businesses comply with federal corporate-tax rules via automated calculations, forecasting, and deadline reminders.
Social-Media & Messaging Platform
Rich-media social network with real-time chat, voice/video calls, and personalized recommendations using ML models.
Membership-Engagement Suite
High-traffic SaaS platform for sports associations & non-profits with subscription billing, community discussions, and automated reminders.
Mastering modern technologies to create exceptional solutions
Foundation of knowledge and continuous learning
Rajshahi University of Engineering & Technology (RUET)
Capstone: "Low-Cost Autonomous Line-Follower Robot for Warehouse Logistics" - 1st Runner Up in RUET TechFest 2019
Robotics & Innovation
Have a project in mind? Let's discuss how I can help.
Location
Rajshahi, Bangladesh
Languages
English, Bangla, Hindi