Jul 2021 – Oct 2023 · 2 yrs 3 mos · Bengaluru, Karnataka, India · On-site

• Implemented caching on GraphQL APIs, which led to a 70% improvement in performance speed and reduced the load on main services by up to 90%. This also resulted in a cost reduction of 60-70%.
• Designed and implemented a JSON schema-driven framework for search integrations, enabling the addition of new integrations by following the schema. These integrations connected to third-party services to retrieve data after user authorization through OAuth or API key protocols.
• Implemented zero downtime migration pipelines using Kinesis streams, allowing the team to transition from Algolia to OpenSearch and later switch providers for OpenSearch seamlessly.
• Created a distributed lock service to ensure singular access to users' OAuth credentials, ensuring that only one process accessed these credentials at any given time when interfacing with third-party APIs.
• Led backend development for a smart assistant capable of cross-application searches, answering queries from a knowledge base URL, and executing tasks using natural language. This involved training BERT with custom data to detect user intents and entities.
• Collaborated with the platform team to implement an on-prem solution for our search product. By using secure cross-account connections in AWS with fine-grained access control, data remained on the customer's account while the API code was on ours, leading to the acquisition of Hotstar as a customer.
• Set up logging and tracing pipelines for all backend services and initiated a trace collector on an EC2 machine aligned with the OpenTelemetry standard. Traces were later routed to DataDog, and metrics dashboards and monitoring alerts were established.

Jan 2021 – Jun 2021 · 5 mos · Bengaluru, Karnataka, India · On-site

• Established the initial backend for OSlash Shortcuts using AWS AppSync and DynamoDB. Identified challenges with VTL templates in AWS AppSync and advocated for a transition to AWS Lambda with Node.js and TypeScript to improve developer experience.
• Developed a single-table schema in DynamoDB for users, workspaces, and shortcuts. This schema was adapted to accommodate business changes such as the introduction of collections, four distinct shortcut access levels, multi-workspace user joining, and multiple admin roles in workspaces and collections. Additionally, snippets were integrated into the same schema.

Nov 2019 – Dec 2020 · 1 yr 1 mo · On-site

• Spearheaded the development of a real-time, real-money multiplayer Ludo game backend, complete with an administrative panel, leveraging Node.js, ExpressJS, MongoDB, and socket.io. Ensured scalability, currently serving 300K+ users, with 20K+ daily active users and over 500K+ monthly games. Managed transactions worth over 10cr via secure integrations with Paytm & Cashfree, while achieving daily transactions exceeding 20L with an impressively low failure rate.
• Constructed a robust backend for a directory website dedicated to Indian films, shows, and celebrities. Additionally, rolled out a backend for a niche job/service portal tailored for the film and entertainment industry, employing NodeJS, ExpressJS, and EJS for a dynamic and secure route-protected, role-based admin interface.
• Pioneered the backend development for DC CLAP, a multi-faceted service application with integrated chat capabilities. Integrated advanced features like 1-1 and group audio/video calling using agora.io, backed by Node.js, ExpressJS, and MongoDB.
• Developed a streamlined real-time chat application's backend, ensuring user privacy with a robust End-to-End Encryption (E2EE) mechanism. Utilized a combination of Node.js, ExpressJS, MongoDB, and socket.io to guarantee real-time communication and data integrity.
• Demonstrated proficiency in deploying projects on AWS EC2 with ElasticIP, taking on the responsibility of close monitoring and maintenance. Proactively engaged in server optimization and transformation since the initial deployment phase.
• Volunteered to transition all projects to Git for enhanced version control and collaboration. Successfully migrated projects from local system storage to AWS CodeCommit. Established pipelines for deployment based on commits, replacing manual upload methods like FileZilla.

Oct 2017 – Oct 2019 · 2 yrs · On-site

• Constructed a robust backend for a directory website dedicated to Indian films, shows, and celebrities. Additionally, rolled out a backend for a niche job/service portal tailored for the film and entertainment industry, employing NodeJS, ExpressJS, and EJS for a dynamic and secure route-protected, role-based admin interface.