Looking for a job

Aditya Kumar

@adityakumar49

Message

I've built high-throughput backend systems that cut processing times and scale products serving millions.

India

Message

What I'm looking for

I'm looking to build scalable, high-throughput systems where I can apply event-driven architecture, cloud-native engineering, observability, and technical leadership to deliver measurable product improvements.

I've built high-throughput backend systems for UAS International Trip Support, Habuild, Dream11, and OpenBorder. My work spans event-driven architecture, microservices, observability, and AWS-native deployments.

At UAS International Trip Support, I cut flight document generation from more than 60 seconds to under 10 seconds. I also unified fragmented repositories with Turborepo and implemented centralized audit logging and end-to-end tracing with ClickHouse, SigNoz, and OpenTelemetry.

At Proximity Works, I reduced scheduling for 20 million events from 45 minutes to 5 minutes using Redis and RabbitMQ, and architected a WhatsApp notification pipeline on S3, SQS, and Lambda. I led the development of a payment service and built distributed load testing on AWS EKS.

I've also improved Dream11 list rendering by 600%, built shipping-rate and multi-currency fee systems for OpenBorder, and delivered accessible React interfaces serving 90 million users across 60-plus countries at Cognizant.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

UAS International Trip Support

Apr 2026 - Aug 2026 (4 months)

Cut flight document generation from 60+ seconds to under 10, a 6x improvement. Migrated fragmented repositories into a unified Turborepo monorepo and implemented centralized audit and application logging on ClickHouse and SigNoz.

NodeJS TurboRepo Clickhouse SigNoz OpenTelemetry

Senior Software Engineer

Proximity Works

Mar 2022 - Apr 2026 (4 years 1 month)

Reduced event scheduling for 20M events from 45 minutes to 5 minutes using Redis and RabbitMQ. Architected scalable WhatsApp notification pipeline using S3, SQS, and Lambda with retries. Led a team building a payment service from scratch with Razorpay and HDFC gateway integration. Set up distributed load testing on AWS EKS with k6-operator, Prometheus, and Grafana monitoring.

Express Redis RabbitMQ Kafka AWS SQS Lambda S3 Kubernetes React Native GraphQL NestJS PostgreSQL

Program Analyst (Software Engineer)

Cognizant

Jun 2019 - Mar 2022 (2 years 9 months)

Built UI features with React, Redux, and Material UI for an app serving 90M+ users across 60+ countries. Led team of 3 to achieve WCAG 2.1 ADA compliance, making the application globally accessible. Collaborated directly with clients for requirements gathering and delivered solutions aligned with business needs.

React Redux Material UI WCAG 2.1 Accessibility