Aug 2025 – Nov 2025 · 3 mos · Gurugram, Haryana, India · On-site

• Led infrastructure migration from a third-party platform to a self-managed ECS-based deployment
• Built a Code Review Agent to automatically vet LLM-generated Playwright test autofixes; developed internal tooling to ensure context along with safe, consistent code quality at scale.
• Improved session reliability and reduced LLM hallucinations with structured prompts.
• Left to build an MVP for a startup

May 2023 – Aug 2025 · 2 yrs 3 mos · Gurugram, Haryana, India · On-site

• Led zero-to-one implementation of a B2B AI SaaS product that was adopted pan-India by multiple prominent banks like HDFC, ICICI in Cattle Insurance leading a team of Data Scientists, ML, FullStack & QA Engineers
• Proposed, designed & implemented multi-tenancy architecture & tenant-level encryption for data
• Added Fuzzy Search in Hindi/English using NodeJs using Dice’s Co-efficient & Redis cache resulting in avg 30% more orders placed per city
• Led the design & development of modular high-SEO UI templates in React/NextJs reducing repetitive effort, some pages ranking between 1-10 on Google Search.
• Rewrote legacy APIs with Redis caching improving cache hit-rate by 12% & improving site load time by over 20%.
• Independently worked with Finance, E-commerce & Growth team PMs, responsible for running feature experiments on cattle trading app with 10M+ downloads & 100k daily users
• Singlehandedly designed & developed from scratch an automated Order Dispatch, Shipment & Delivery flow tracking system end-to-end for an e-commerce project, resulting in 2% overall cost reduction & much greater granular visibility.
• Generated real-time Financial data & PDF GST Invoices, Credit Notes for finance & provided data output on Grafana for financial reconciliation
• Developed high-performing backend APIs with Redis cache in Typescript/NestJs, MongoDB & MySQL

Jul 2022 – May 2023 · 10 mos

• Owned one critical product, worked on critical features across products & helped junior developers grow.

May 2021 – Sep 2022 · 1 yr 4 mos

• Independently worked on Valor, a complex client tracking system to facilitate business decisions based on revenue generated from clients
• Implemented offset-based pagination to improve site load-time by over 200%
• Integrated 3rd party APIs with authentication
• Generated pdf invoices & uploaded to AWS S3
• Used Chart.js to generate dynamic graphs of client revenue-expenditure data
• TDD Assertion pattern followed in the MERN stack
• Unit testing done using Mocha & Chai.js, Sinon.js
• Used Monads ie folktale.result, function currying & composing
• Also used Docker, Next.js, Tailwind CSS, PostgreSQL, Sequelize

Nov 2020 – Mar 2021 · 4 mos

• Designed backend System using Nodejs, Express, MongoDB+Postgres & Redis for caching.
• Created database & compute instances on Google Cloud (using GCloud Shell) and deployed microservices
• Integrated IOT devices with backend REST APIs
• Implemented user on-boarding using Google Firebase Auth. Phone verification implemented using Firebase
• OTP feature.
• Integrated PayTM payment gateway
• Mentored interns from college & taught them basic SQL queries
• Made lots of mistakes and learnt to pick myself up from failure!

Jul 2019 – Nov 2020 · 1 yr 4 mos · Kolkata, India

• After graduating in 2019, I started working as a full stack developer as part of a Java Digital Commercial portfolio at Tata Consultancy Services Ltd.
• Deployed numerous Java enhancements & bug fixes on 20+ enterprise applications for Johnson & Johnson Europe and Middle-East.
• Worked on NodeJS/Spring REST APIs to perform CRUD operations
• Sped up SQL queries & improved web-app performance, reducing website load time by upto 80% in some cases.
• Wrote SQL queries to extract data from databases based on client requirements (usually quite complex)
• Wrote SQL scripts to insert/update/delete data in multiple tables
• Deployed/started/stopped war/ear files on production/testing/dev servers
• Mentored junior devs & peers
• Interacted with clients one-on-one to understand client requirements & grievances
• Databases - MySQL, OracleDB, MSSQL, PostgreSQL
• Frameworks - Spring/SpringBoot, ReactJS, ExpressJS

Jan 2018 – Jan 2018 · 0 mo · Kolkata Area, India

• Learnt about SAP, OSI layers in networking and data transfer to MongoDB using MQTT

Jul 2017 – Aug 2017 · 1 mo · Kolkata Area, India

• Programmable Logic Controller design, simulation using SCADA & Simatic Manager

Oct 2015 – Jul 2019 · 3 yrs 9 mos · Kolkata, India

• Panacea is a philanthropic organisation, founded in early 2015 by my former classmate, Somak Sanyal.
• Technical -
• Redesigned & rebuilt website from scratch, integrated Payment Gateway (using Merchant Account & PayTM API) & Oath2.
• Non-technical -
• Active duties include leading junior members on Projects to remote locations and often assisting my seniors on their initiatives - their main object being empowerment of the underprivileged.
• Passive duties include contributing to & collecting donations for poverty-stricken people who benefit from Panacea's initiatives.