Rajat Dabas

Professional Experience

1. Software Engineer

   Paytm

   India

   Jan 2025 — Present

   • Owned backend architecture for Full Swipe Offer: high-throughput data pipelines ingesting 20,000+ Kafka events/sec, powering real-time merchant analytics with Elasticsearch, MySQL (Aurora), and TimescaleDB.
   • Improved 10+ high-traffic APIs by moving from JSON to Protobuf: ~35% smaller payloads, ~15% lower latency, and ~20% higher throughput.
   • Led AI-powered MCP servers and an internal chatbot: automated cross-team workflows and merchant query handling, cutting external API use by ~99% (Python, Vercel SDK, Next.js, OpenAI).
   • Reduced AWS database infrastructure costs by 33% through the implementation of a rolling data tiering strategy, optimizing storage class (Standard to I/O Optimized) for high-access database partitions.
   • Achieved 99.9% uptime, 95.5% SR, 5000+ TPS across production systems serving 76M monthly active users and 1.6B monthly transactions.

2. AI Software Developer

   VoriqAI · Full-time

   Remote

   Jan 2023 — Dec 2024

   • Integrated Session-based auth with automated security testing and CI/CD—secured 10,000+ user sessions, zero known breaches, 99.9% session persistence (Homeland Group).
   • Delivered Real-time monitoring with React and automated CI/CD over 1,000+ business workflows.
   • Deploying AI-powered chatbot for world's largest fintech festival handling 10,000+ real-time queries with sub-2 second response time
   • Facial recognition system processing 65,000+ photos with 98% accuracy. Established CI/CD pipeline with automated monitoring supporting 10,000+ concurrent users achieving 99.8% uptime.

3. Frontend Developer

   Delhi Technological University (USIP–DTU) · Internship · Hybrid

   Delhi, India

   Oct 2022 — Dec 2022

   • Delivered the Department of Environment Engineering web presence on USIP–DTU (React, CSS, Firebase): multi-page layout, global nav and footer, and auth (login/signup).
   • Shipped live weather updates and digital workflows that cut manual paperwork by ~40% versus prior paper-based processes.
   • Partnered with two teammates (backend and research) under Asst. Prof. Anunay Gour to deliver the site end-to-end.

4. Technical Writer

   CodeSpeedy Technology Private Limited · Internship

   Remote

   Jul 2022 — Aug 2022

   • Wrote and published two long-form React.js tutorials aligned with CodeSpeedy’s style guide and audience expectations.
   • Practiced end-to-end technical content: keyword research and on-page SEO, structural editing, and clear, beginner-friendly explanations.