Utsav Singh | Software Development Engineer 2

WORK EXPERIENCE

Flipkart | Software Development Engineer 2

March 2023 - Present

  • Designed and developed the orchestration engine powering SuperMoney's co-branded card onboarding journeys (Axis, Kotak, Utkarsh). Achieved p99 latency of ~230 ms for onboarding and ~1.2 s for orchestration, outperforming competitors by >10x, enabling seamless integration with external bank APIs.
  • Architected and solely built the lead-journey system that matches users with optimal lending partners using the orchestration engine handling ~10K+ journeys/day and facilitating issuance of ~2K credit cards/day.
  • Created a cross-service Data Platform SDK to standardize event publishing to GCP Pub/Sub, adopted by 7+ teams, processing 250K+ events/day. Abstracted infra details behind a single pushEvent() API, cutting integration effort by >80%.
  • Designed multi-card user support, requiring both vertical and horizontal redesign across onboarding and allocation systems.
  • Improved oncall stability post Axis-SuperMoney launch: reduced noisy alerts by >95% (~1 every 15 min to ~1 every 2 hr), decreased journey failures by ~96%(from ~8% to ~0.3%), and resolved 50+ production issues.
  • Developed marketplace gateway APIs for Flipkart Health+, ensuring seamless partner integrations.
  • Improved inventory refresh latency from ~45 min to ~5 s using CDC pipelines and Redis, cutting out-of-stock incidents by ~50%.
  • Implemented CDC pipelines with GCP Pub/Sub, Debezium, and gRPC, handling ~1.7 M messages/day.
  • Established canary deployments with Helm & Kubernetes to enhance rollout reliability and reduced risk.
  • Upgraded services from JDK 8 to 17, improving latency and build time; implemented Locust-based performance tests to validate NFRs.

Amazon | Software Development Engineer

December 2021 - March 2023

  • Designed an auto-scalable serverless backend to delete ad keywords and related entities at ~864K deletes/day (~306 M/year) using AWS ECS, Fargate, S3, and SQS.
  • Re-engineered the ad keyword sourcing algorithm, increasing effective keywords by ~185%, ad impressions by ~168%, and clicks by ~132%, driving ~$94 M (~48%) ad revenue growth.
  • Enhanced ad-spend anomaly detection to cut false positives by ~57%, improving advertiser trust.
  • Built 8+ chaos experiments to strengthen resiliency via improved resource configs, monitors, and alarms.
  • Added support for modern ad assets (enhanced sitelinks, countdowns) and revamped stakeholder UI.
  • Led Prime Day readiness activities, auditing and remediating compliance, operations, and security issues.

Ultragenic Research & Technologies | Software Developer

January 2021 - December 2021

  • Built a serverless backend to extract data from CIOMS PDF forms, convert to E2B(XML), and feed into Oracle Argus Safety System, increasing throughput by ~80% and eliminating manual entry.
  • Developed automated email processing service to parse E2B(XML) files, create safety cases, and generate reports, saving ~20 min per case (~160K cases/month).
  • Conducted performance/load testing with Apache JMeter for client Argus web instances (HTTP/HTTPS).
  • Stack: TypeScript, Python, PL/SQL.

LEADERSHIP EXPERIENCE

Enigma Programming Club | Head

April 2017 - July 2021

  • Led a team of 80+ developers, organizing coding contests and workshops on DSA and C++.
  • Developed the club's website to showcase achievements and drive engagement in the college tech community.

EDUCATION

ABES Engineering College

B.Tech in Computer Science & Engineering

Graduation Date: July 2021

  • Core Courses: Data Structures, Algorithms, DBMS, OS, Networking, OOP, Functional Programming

SKILLS

  • Programming Languages: Java, Python, C/C++, JavaScript, TypeScript
  • Frameworks & Backend: Spring Boot, Dropwizard, Node.js, JUnit, Mockito, Microservices, Serverless
  • Databases: MySQL, PostgreSQL, Redis, DynamoDB
  • Cloud: AWS (ECS, Fargate, S3, SQS), GCP (Pub/Sub, GKE, BigQuery)
  • DevOps: Docker, Kubernetes, Terraform, Helm, CI/CD Pipelines
  • Tools & Collaboration: Git, GitHub, Jira, Confluence, Agile / Scrum
  • Other: Data Structures & Algorithms, System Design, Distributed Systems, Observability, REST/gRPC APIs