Looking for a job

Sagar Chauhan

@sagarchauhan1

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I build reliable distributed backend platforms and high-scale fintech systems.

India

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What I'm looking for

I'm looking to build reliable, scalable distributed platforms where I can own backend architecture, improve production performance and reliability, collaborate across product and data teams, and mentor engineers.

At PagarBook, I build and improve production backend systems, including a three-stage idempotent reconciliation service that repaired 20,000+ leave-balance records across 2,000+ business divisions.

I consolidated 13 mutation sources into an immutable PostgreSQL ledger, improved API reliability through zero-downtime index migrations, and shipped Payment Categorisation end-to-end across REST APIs and React.

Previously at Jupiter Money, I built a multi-tenant EKYC/VKYC platform processing 8.3L+ verifications and integrated four payment and banking vendors. I also reduced wallet API p99 latency by 93%, from 6 seconds to 400ms.

I work across Kotlin, TypeScript, AWS, Kafka, Kubernetes, PostgreSQL, and Terraform, with hands-on ownership of observability, incident response, security, and platform operations. I enjoy designing durable systems, mentoring engineers, and using AI-assisted development to ship better production software.

Experience

Work history, roles, and key accomplishments

Current

Software Development Engineer 2

Current

PagarBook

Nov 2025 - Present (10 months)

Diagnosed and resolved a production leave-balance corruption bug by building a 3-stage idempotent reconciliation service to repair 20,000+ records. Led API performance improvements, built the Payment Categorisation feature end-to-end, and drove engineering velocity with AI tools.

TypeScript NestJS PostgreSQL Sequelize TypeORM React AWS Docker Design Patterns REST APIs AI assisted Development Cursor Claude Code

SDE 1

Jupiter Money

Oct 2022 - Oct 2025 (3 years)

Continued as SDE 1 after internship, focusing on microservices deployment, observability, and on-call responsibilities. Partnered with Data Engineering and ML teams to integrate data pipelines and model serving hooks.

Kotlin Spring Boot Kafka Temporal PostgreSQL Redis DynamoDB AWS Kubernetes Terraform GraphQL Microservices Observability Prometheus Grafana Loki Incident Response SLOs KPIs

Software Engineer Intern

Jupiter Money

Oct 2021 - Oct 2022 (1 year)

Built a multi-tenant EKYC/VKYC platform using Kotlin, Spring Boot, and event-driven architecture on Kafka. Hardened system security with AWS KMS and improved wallet API latency by 93%.