• Led a 4-engineer pod on Instagram's feed ranking backend; owned quarterly roadmap, mentored 3 engineers to promotion, and conducted 60+ bar-raiser interviews across the org.

• Architected multi-region failover for feed delivery across 3 regions, eliminating cascading failures that caused 3 high-severity incidents and reducing P99 latency by 40%.

• Owned SLO ownership and error budget governance for the pod; introduced incident response runbooks and automated alerting that cut MTTR by ~50%.

• Instrumented full-stack distributed tracing across Kafka, GraphQL, and PostgreSQL layers, reducing mean time to detect latency regressions from hours to under 10 minutes.

• Consolidated 14 legacy REST endpoints into a GraphQL API with DataLoader batching, cutting backend fan-out by 70% and client integration time from 3 weeks to 5 days.

• Built Kafka pipelines processing 500K+ events/sec for the real-time activity feed, maintaining sub-100ms latency with zero event loss under downstream degradation.

• Designed a RAG pipeline — embedding generation, vector search, re-ranking — integrated into feed scoring with <40ms p95 latency via batching and async prefetch.

• Shipped LLM integration into the content ranking pipeline; A/B tested across 50M users, yielding 35% improvement in recommendation accuracy and 12% reduction in negative feedback.

• Deployed feed microservices on Kubernetes with HPA, zero-downtime rolling deploys, and OpenTelemetry tracing; contributed reusable Helm templates adopted across 3 services.

• Optimised PostgreSQL schema and query layer for the user-graph affinity store; composite indexing and read-replica routing cut p95 query latency by 60%.

• Implemented fault tolerance patterns (circuit breakers, request hedging, exponential backoff) across feed dependencies, reducing cascading-failure incidents by 30%.

• Led delivery of FinTech platforms processing millions of transactions per month under PCI-DSS and SOC2 compliance.

• Designed resilient distributed systems meeting 99.9% uptime SLAs.

• Built workflow automation reducing loan processing effort by 40%.

• Established CI/CD pipelines and TDD practices.

• Reduced platform downtime by 25% through improved monitoring and incident response.

• Worked closely with internal clients to define business objectives, project scope, solution space and design/development approach for various knowledge research applications.

• Setting up AngularJS framework for UI development. Developed html views with HTML 5, CSS 3, JQuery 1.1.0, JSON, and Java Script.

• Used JQuery to make the HTML, DHTML and CSS code interact with the JavaScript functions to add dynamism to the web pages at the client side.

• Used 'TestNG' for backend test cases and 'Jasmine' for AngularJS test cases.

• Using Google analytics reports, optimized the page load time for the pages that had heavy traffic and improvised those pages using CSS.

• Writing front-end code like HTML, CSS, JQuery for assigned User requirements using BackboneJS, AngularJS, RequireJS and various other JavaScript frameworks.

• Code enhancement and bug fixes.

• Created wireframes, storyboards, user flows, and documentation and site maps to effectively communicate design ideas. Uses multiple UI UX tools and software to complete tasks

• Implemented XML parsing code for different application.

• Developing custom HTML elements using angular JS directives.

• Developed controllers, view/partials and directives for application.

• Used JQuery, and JavaScript for DOM manipulations.

• Widely resolved angular scope issues.

• Developed Angular factories, and used angular promise API for making Async calls.

• Used angular UI-bootstrap and CSS 3.

• Used karma-test-runner and Jasmine for JavaScript Unit testing.

• Worked on development of Java Web Services.

• Using Eclipse Juno, Adobe Bracket, SVN, Angular debugger and ng-inspector tools.