Headline

Technical Lead – Scaled Cards platform to support $1M daily transactions · Building resilient, scalable, distributed systems · Backend Engineering · Fintech & SaaS · Node.js · AWS · GraphQL · Kafka

About

I build backend systems that handle things that cannot fail. At Novo, I solely owned & scaled the card transaction platform — driving $1M+ in daily revenue — the system responsible for 90–95% of company revenue. Promoted twice in 3 years: Backend Engineer → Senior Backend Engineer → Technical Lead. Over 8 years, I've specialised in high-stakes backend engineering — transaction processing, IAM, distributed systems — at scale. I care deeply about correctness, resilience, and performant systems that hold up when it matters most. Currently open to SDE3 / SDE4 / Technical Lead at fintech, developer tools, or enterprise SaaS — Bengaluru or remote. Domains: Fintech · Payments & Cards · IAM & Authorization · Distributed Systems · SaaS Platforms Tech stack: Node.js · TypeScript · GraphQL · Kafka · PostgreSQL · Redis · AWS · Docker · Python

Location

Bengaluru

AI stack

opencode

claudecode

Work experience

Senior Software Engineer at Gushwork, Aug 2025 - Apr 2026 · 9 mos, Bengaluru, Karnataka, India, - Architected a secure Fine-Grained Authorization Service (FGAS) unifying auth for internal/external users and all apps — achieving p99 response time of 10ms — using AWS ECS, OpenFGA, and PostgreSQL; deployed via AWS CDK. - Improved Customer website loading performance by 40% by developing an Image Upscaling Service using AWS Step Functions, Serverless Framework, Python, Pinecone Vector database, Recraft AI in Replicate - Streamlined development processes via enforcing proper github management, standardising workflows for branching strategy, pull requests and CI/CD pipelines for automated release versioning and management.

Technical Lead at Novo, Jan 2024 - Jun 2025 · 1 yr 6 mos, Bengaluru, Karnataka, India, Promoted to Tech Lead within 10 months. - Leading the design & development of Identity Core, a company-wide IAM platform — built using GraphQL, Kafka, Redis, Node.js & PostgreSQL — through cross-functional collaborations within the team, other teams, PMs & other internal stakeholders & architectural discussions & documentations involving GraphQL API specs, Schema design & data migration planning - Managed and mentored a team of SDEs through weekly 1:1s, architecture reviews, and KT sessions, set technical direction, drove sprint planning — raising code quality standards across the team. - Contributed to hiring of SDE1 and SDE2 engineers. First formal people management responsibility, taken on alongside full technical ownership of Identity Core. - Facilitated execution of Org-wide engineering initiatives, triaging security vulnerabilities in code & Docker Images, productions issues by collaborating with internal stakeholders & Tech Leads of other teams

Senior Software Engineer at Novo, Apr 2023 - Jan 2024 · 10 mos, Bengaluru, Karnataka, India

Backend Engineer at Novo, Jun 2022 - Jan 2024 · 1 yr 8 mos, Novo is a fintech company which provides business banking to small businesses My contribution is to add to the reliability, scalability, and performance of the Cards vertical and make Transaction processing more resilient. As a Senior Backend Engineer, I have: - Scaled the card transaction platform 2x — enabling $1M+ in daily revenue — by overhauling RabbitMQ queue prioritization, eliminating redundant API calls, and implementing Redis-based fallback authorisation in Node.js. Sole owner of the system responsible for 90 to 95% of Novo's revenue. - Cut dispute resolution turnaround by 80% (from 120 days to under 3 weeks) by redesigning the dispute API pipeline end-to-end — directly improving customer satisfaction and reducing operational overhead for the support team. - Led the design and implementation of a scalable file upload feature using streaming uploads as measured by near minimal CPU and memory utilization increase even with large files and parallel uploads - Led the design and implementation of the Add to Wallet Feature (Google Wallet, Apple Pay, etc) leading to an improved Customer experience and an increase in revenue - Achieved 100% Compliance of New Customers by implementing a new KYC feature during Card Creation with no disruption to existing customers as measured by 0 CS tickets post-release. - Improved the security posture of the code by fixing code security vulnerabilities as measured by the reduced number of security alerts on the repositories

Senior Software Engineer at Safe Security, May 2021 - Jun 2022 · 1 yr 2 mos, Safe Security is a cybersecurity startup that helps enterprises quantify, identify and mitigate their cyber risks in real-time. As a Senior Software Engineer at Platforms team, I've joined to add to the stability, scalability & performance of the products & to contribute towards improving the best practices of the teams. Working here, l have: 1. Implemented the crucial mechanism for upgrading a disconnected Ubuntu system for a virtual appliance which helped reduce Proof of Value (PoV) time by 90% as measured by the reduction of deployment time from days to hours. 2. Achieved over 2x improvement for a batch CSV processing functionality by optimizing the logic, the db queries & db indexes as measured by the reduction of processing time taken for MySql from 60% to below 1% in Datadog APM flamegraph profiles. 3. Developed a AWS S3 event notification lambda trigger using AWS CDK custom resources which wasn’t natively supported by cdk itself for an automated file processor using AWS Fargate. 4. Built a terminal autocomplete for internal cli tool which helped with developer productivity and onboarding of new developers

Software Engineer at SuperProcure, Feb 2019 - Apr 2021 · 2 yrs 3 mos, Superprocure is a Saas startup which helps manage & optimize Supply Chain Operations. As a Software Engineer here, I had designed, developed, and maintained features to help companies obtain vehicles faster & save Freight costs for their product dispatches. During my journey here, I had: 1. Achieved a 10x improvement in both Auction Participation (a key business component) & it's API Response Time by implementing a new Auction Engine using Redis Caching. 2. Helped obtain PepsiCo as a customer by implementing a new auction feature in 3 days for rate negotiation of year-long contracts. 3. Reduced Database Load From Peaking at 100% to below 25% during peak hours by Optimizing MySQL Stored Procedure & Queries, leading to Increased App Responsiveness and Improved User Experience. A day in my work included: 1. Getting requirements from & communicating updates to support and customer success teams regarding bugs solved or training them on the new features built. 2. Planning and prioritising issues that need to be solved or new feature to be built into the Product 3. Research, Analysis and coming up with Solutions To Customers' needs. Discuss and Brainstorm use cases, solutions with teammates, and gain feedback from them. 4. Build end to end solutions from UI to Backend using React, Redux in Frontend, Node.js and Express.js for REST APIs, Socket.io for real-time communication, MySQL as database. 5. Help teammates on debugging issues or with peer code reviews. Tech: Node.js, Express.js, Socket.io, React.js, Redux.js, JavaScript ES6, Mysql, Redis Tools: Trello, Git (Bitbucket), Slack, Google Workspace like Meet, Drive, Docs

Co-Founder at The Farfett, Jan 2018 - Jan 2019 · 1 yr 1 mo, Kolkata, West Bengal, India, The Farfett was a startup to help ease the life of working professionals going through professional education. While engaged in the startup, I had: 1. Built the MVP by listening to people's pain points and converting them to problems to be solved. 2. Increased Customer Base by 5x by marketing with conversational leaflets which I had created collaboratively with my partner.

Education

Master’s Degree, Computer Science, University of Calcutta

Bachelor’s Degree, Computer Science, University of Calcutta