Available for opportunities

Vijay
Gupta

I architect systems that scale

Backend Engineer building infrastructure that processes millions of daily rides across India. Every millisecond counts. Every rupee of infra cost matters.

Get in touch View work
Vijay Gupta
SDE @ Juspay NammaYatri
0% Latency Reduced
0% Infra Cost Cut
0y+ Production Exp
Bengaluru, India Open to Remote / Relocation
Haskell / Redis / Kafka / PostgreSQL / AWS / Kubernetes / Clickhouse / Python / Haskell / Redis / Kafka / PostgreSQL / AWS / Kubernetes / Clickhouse / Python
01

About

Software Engineer with 3+ years designing scalable backend systems. Currently at Juspay building NammaYatri — infrastructure that processes millions of daily rides across India.

My work spans the full backend depth: Redis slot optimization, Kafka consumer tuning, CloudWatch-based auto-scaling, and CPU profiling in Haskell. I care about systems that are observable, cost-efficient, and stay up when traffic spikes unexpectedly.

When I'm not optimizing production systems, I'm building developer tools, exploring LLM-powered observability, and contributing to open-source transit infrastructure.

0% Backend latency reduction via CPU profiling & I/O optimization
0% Infrastructure cost cut with Redis-to-Valkey + zstd compression
0% QA time reduced with Automated Regression Testing framework
0k+ Daily rides powered by systems I help architect and maintain
02

Stack

Languages

Haskell Python C++ JavaScript PureScript SQL

Data & Messaging

Redis / Valkey Kafka RabbitMQ PostgreSQL Clickhouse

Backend

Node.js Express REST APIs Microservices

Cloud & DevOps

AWS Kubernetes Docker Git CI/CD

Engineering Focus

System Design Performance Tuning Distributed Systems Cost Optimization
03

Work

Juspay NammaYatri

Software Development Engineer
May 2023 — Present Bengaluru

Cost Optimization & Efficiency

  • Architected a high-throughput KV storage framework using Redis, cutting PostgreSQL database cost by 40%
  • Introduced table-level sharding and optimized Redis slot allocation, reducing Redis node count by 30%
  • Cut AWS ALB costs by 25% via API response compression and zone-aware routing
  • Upgraded Redis to Valkey + zstd compression: 50% decrease in memory usage and instance cost

Scalability & Architecture

  • Implemented auto-scaling for Redis and RDS using custom CloudWatch metrics for seamless traffic spike handling
  • Decoupled the drainer service for async, resilient syncing to Clickhouse and PostgreSQL
  • Reduced CPU bottlenecks via multithreading in high-throughput services

Performance & Developer Efficiency

  • Reduced backend latency by 40% via CPU profiling, I/O optimization, and dependency trimming
  • Built Automated Regression Testing (ART) framework — QA time reduced by 60%
  • Developed dynamic real-time pricing engine and ETA predictor
HaskellPureScriptRedis (Valkey)KafkaPostgreSQLAWSKubernetesClickhouse

Vahan

Software Development Engineer I
Jun 2022 — Apr 2023 Bengaluru
  • Redesigned backend for an AI-driven WhatsApp Bot — API response time down 40%, user engagement up 35%
  • Implemented concurrent chat processing, reducing telecalling costs by 32% through automation
  • Built fallback data collection for Uber, achieving 98% data accuracy during system outages
  • Automated application status tracking via offline data uploads to data warehouse
Node.jsReact.jsPostgreSQLRedisRabbitMQ
04

Builds

@ Juspay

Location Tracking Healthcheck

Real-time system to detect stalled GPS updates for active drivers — improving dispatch accuracy by 20% across 200k+ daily rides. Optimized Redis Streams cut location latency by 15%.

HaskellRedis Streams

Master Oogway

Post-release observability platform with LLM-powered RCA. Reduced MTTR by 50% and incident detection time by 70%.

PythonFastAPIPrometheusKubernetesAI

Multi-Cloud DB Manager

Unified database manager supporting multi-cloud deployments with automatic failover and read replica routing.

TypeScriptPostgreSQLRedis

NodeSage

CLI tool for codebase understanding using local LLMs with RAG architecture — ask questions about any repo.

Node.jsOllamaRAG

k8s-dashboard

Kubernetes cluster monitoring dashboard with real-time metrics, pod health visualization, and resource utilization.

FastAPIReactKubernetes

Bus Route Tracker

Open-source platform to collect, confirm, and manage bus stop & route data with real-time GPS tracking.

PythonRedisClickhouseKotlin
05

Education

Degrees

B.Tech, Computer Science

Kamla Nehru Institute of Technology, Sultanpur

2018 – 2022 8.5 CGPA · Top 5%

Higher Secondary (PCM)

St. Handel Public School, Allahabad

2015 – 2017

Certifications

Neural Networks & Deep Learning Coursera / DeepLearning.AI Improving Deep Neural Networks Coursera Problem Solving (Intermediate) HackerRank JavaScript (Intermediate) HackerRank Complete Node.js Developer Udemy
06

What People Say

"Vijay was a fantastic person to work with — multi-skilled, insightful, and a person with very strong problem-solving skills. His focus keeps everything moving smoothly, deadlines are met, and whatever project he is working on meets the highest standards."

Naman Samaiya SDE3 @ Vahan

"Vijay impressed me with his positive attitude and strong work ethic. Always eager to learn, great initiative on challenging projects. His technical skills are equally impressive — it was clear from the beginning that he has a great deal of potential."

Ketan Patil Engineering Manager @ Vahan

"Vijay's technical knowledge, attention to detail, and problem-solving skills are unmatched. He was always a key contributor to our team's projects. I highly recommend Vijay for any opportunity he pursues."

07

Let's Connect

Have an interesting problem to solve? Building something ambitious? Or just want to talk distributed systems?

vijayrauniyar1818@gmail.com linkedin.com/in/vijaygupta18 github.com/vijaygupta18