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Ratnesh Kumar TiwariRT
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Ratnesh Kumar Tiwari

@ratneshkumartiwari

I build high-scale distributed systems, AI infrastructure, and logistics platforms at Zomato.

India
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At Zomato, I build distributed systems for orders, dispatch, configuration, AI infrastructure, and EV/Fleet operations at significant scale.

I built stress-based dispatch across roughly 2,000 zones on a 1M req/min order service, increasing capacity by 90K orders per day. I also delivered a zero-downtime deletion pipeline for 8B+ DynamoDB records and reduced config-service read latency by 42% across 50+ microservices.

I’ve migrated a 2.64M req/min service from REST to gRPC, designed encrypted AI-platform workflows using AES-256-GCM and HPKE, and built agentic tooling, LLM evaluation on SQS, and sandboxed code execution on E2B.

Previously at Invesco and Valorant Consulting, I built reporting systems, cloud data workflows, and React-based automation tools. I’m an ICPC Regionalist with AIR 56 and enjoy solving hard systems problems with Go, AWS, DynamoDB, Kafka, Redis, and system design.

Experience

Work history, roles, and key accomplishments

Zomato logoZO
Current

Software Engineer 2

Zomato

Jan 2026 - Present (8 months)

Built a 3-stage Step Functions reconciliation that recovers 900+ stuck orders/day across 6 logistics partners using a sparse DynamoDB GSI at near-zero cost; designed 3PL retry/timeout contracts for order-state convergence. Migrated a 2.64M req/min service from REST to gRPC, cutting both serialization overhead and p99 latency.

Education

Degrees, certifications, and relevant coursework

Madan Mohan Malaviya University of Technology logoMT

Madan Mohan Malaviya University of Technology

Bachelor of Technology, Computer Science and Engineering

2019 - 2023

Grade: 8.29/10.0 CGPA

Bachelor of Technology in Computer Science and Engineering with a CGPA of 8.29/10.0.

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