Hi there, I'm
Tanmoy
Senior Software Engineer | Cloud & Distributed Systems
Profile Summary
Senior Software Engineer based in Melbourne with 9+ years of experience designing, building, and operating production systems. I focus on backend and platform engineering using AWS, TypeScript, Node.js, NestJS, and PostgreSQL, with full-stack experience in React and React Native.
I have led architecture decisions, built distributed and event-driven systems, and improved production reliability, API performance, and deployment speed. My experience includes healthcare, banking, and mobile device platforms, with access control and audit logging built into core workflows. I have full working rights in Australia and require no sponsorship.
Skills
Technologies I've learned and worked with - constantly evolving as I continue to grow as a developer.
Programming Languages
Back-end
Front-end
Database
DevOps & Cloud
Testing Frameworks
Other Technologies
Professional Experience
Senior Software Engineer (Full Stack)
Pinwheel | Remote
May 2023 - Present
- Led a zero-downtime MongoDB migration separating database and backend workloads, reducing API latency by approximately 55% (2.0 s to 0.9 s) and backend CPU usage from 96–99% to approximately 70%.
- Redesigned AWS production networking with private subnets and load balancers, removing direct public access to application and database services.
- Resolved fleet-wide polling overload in a GenieACS device-management platform and migrated NLB/ALB routing for VoIP/WebRTC devices.
- Built a RabbitMQ-backed MQTT pipeline for real-time, bidirectional communication between mobile devices and backend services, with reconnection handling.
- Implemented WebAuthn and biometric authentication across web and React Native clients.
- Designed and maintained GitHub Actions CI/CD pipelines and implemented unit, integration, and end-to-end tests using Vitest and Cypress.
- Built and maintained full-stack applications using React, NestJS, PostgreSQL, and React Native.
Software Engineer to Senior Software Engineer
MedEase Technology (Ease) | Remote
May 2021 - Mar 2023
- Joined as Software Engineer in May 2021; promoted to Senior Software Engineer in July 2022.
- Built NestJS microservices and developed AWS Lambda services using Serverless Framework across separate projects.
- Developed React-based interfaces for healthcare workflows.
- Integrated partner bank APIs to deliver an embedded banking solution supporting core business workflows.
- Automated SSL certificate generation and renewal, reducing manual configuration effort by approximately 80% and eliminating recurring certificate-related outages.
- Redesigned CI/CD pipelines, reducing deployment time by approximately 50%, and implemented unit and integration tests using Jest, Mocha, and Chai.
- Implemented HIPAA-compliant data handling across healthcare platforms, including access controls and audit logging.
Lead Software Engineer
Cramstack Ltd. | Dhaka, Bangladesh
Jan 2020 - Apr 2021
- Developed a secure, on-premises document management system using React, Spring Boot, and MSSQL.
- Engineered a document processing pipeline with Python (Flask), Celery, RabbitMQ, and Tesseract OCR, handling around 100,000 documents.
- Integrated role-based access controls and audit logging for regulatory compliance.
- Automated COVID-19 data integration and daily chart generation.
- Led a cross-functional remote team developing a healthcare product.
- Created a framework for context-based Natural Language Query (NLQ) suggestions.
Senior Software Engineer
Cramstack Ltd. | Dhaka, Bangladesh
Jun 2019 - Dec 2019
- Decoupled a monolithic application into independent services using RabbitMQ.
- Created a framework for context-based NLQ (Natural Language Query) suggestions using Python.
- Converted and managed services using Docker and Docker Compose.
- Developed a centralized logging system with Elasticsearch, Logstash, and Kibana (ELK).
- Collaborated with the data science team to optimize query processing algorithms.
- Developed a Java Spring Boot service to retrieve database metadata, improving SQL database compatibility.
Software Engineer
Cramstack Ltd. | Dhaka, Bangladesh
May 2018 - May 2019
- Built APIs to summarize datasets and retrieve database information for the Natural Language Query (NLQ) product.
- Developed React UI components and interactive charts using Plotly.js and D3.js.
- Optimized large datasets for smooth performance and efficient memory usage.
- Optimized data processing and background tasks to keep database summaries up to date.
- Enhanced the NLQ system by implementing new query patterns.
- Expanded supported data types and visualizations for the analytics platform.
Full Stack Engineer
Dreamerz Lab Ltd. | Dhaka, Bangladesh
Jan 2017 - Apr 2018
- Built a full-stack social networking application using the MEAN stack.
- Designed and implemented REST APIs using Laravel.
- Developed mobile applications using Ionic 2.
Projects
Document Management System
Developed a secure, on-premises document management system for a banking client using React, Spring Boot, and MSSQL. Built a distributed OCR processing pipeline using Flask, Celery, RabbitMQ, and Tesseract, handling around 100,000 documents with role-based access controls and audit logging.
Natural Language Query Platform
Built APIs and React-based visualizations for an enterprise analytics platform that lets users query datasets using natural language. Developed context-based query suggestions, expanded supported query patterns, and optimized large datasets for responsive charts and efficient memory usage.
Healthcare Practice Management Platform
Built backend services and React-based interfaces for healthcare workflows, including patient records, appointment scheduling, and billing integrations. Implemented access controls and audit logging, integrated partner bank APIs, and automated SSL certificate generation and renewal, reducing manual configuration effort by approximately 80%.
Pinwheel Parental Control Smartphone
Built backend, web, and mobile features for a smartphone platform for children and teens. Implemented WebAuthn and biometric authentication, built a RabbitMQ-backed MQTT pipeline for device communication, and led a zero-downtime MongoDB migration that reduced API latency by approximately 55% (2.0 s to 0.9 s).
Dolpin
A decentralized and encrypted storage layer built with IPFS / Filecoin, enabling secure file sharing. Designed to back up valuable NFTs and digital assets with enhanced privacy and security.
Awards
National ICT Award
Cramstack
Power analytics for Bangladesh's power ministry (Big Data).
Rockstart AI Accelerator
Cramstack
Search-driven data analytics platform (Netherlands Batch 2).
Echelon 100 National Champion
Cramstack
Search-driven data analytics (NLQ) platform (Singapore).