Open to opportunities

Jeston Singh

@jestonsingh

Message

I’m a full stack software engineer scaling production systems across fintech and healthcare.

India

Message

What I'm looking for

I’m looking for a team where I can build and scale production full-stack systems with microservices, strong CI/CD, and observability—owning features end-to-end and growing as a technical leader in collaborative engineering environments.

I’m a Full Stack Software Engineer with 2+ years delivering production systems serving 10K+ users across fintech and healthcare domains. I focus on building scalable web platforms with React, Node.js, and microservices architecture.

I’ve led cross-functional teams of 8+ engineers, established CI/CD pipelines reducing deployment time by 60%, and implemented observability solutions cutting MTTR by 50%. I’ve also scaled systems to handle 10K+ requests/minute at 99.9% uptime.

In my recent role, I engineered production-grade web applications for 50K+ users with 99.8% uptime, improving responsiveness with React and React Native and reducing page load time by 45%. I built secure Node.js microservices with OAuth 2.0, rate limiting, and encryption, eliminating security incidents.

I also have AI/ML production experience from my Infosys internship, where I owned end-to-end ML systems with a 99.9% SLA and achieved <1 hour incident response. I’m proud to be a National hackathon winner (SIH & MSME) recognized for technical leadership and system design excellence.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Software Developer

Current

WellVantage

Dec 2025 - Present (4 months)

Engineered production web applications for 50K+ users with 99.8% uptime, cutting page load time by 45% and achieving 95% user satisfaction. Built Node.js microservices (15K+ API requests/min, <200ms p95) with OAuth 2.0, rate limiting, and encryption, and deployed AWS infrastructure with auto-scaling to support 3x traffic growth while reducing costs by 30%.

React React Native Microservices Microservices Architecture OAuth 2.0

AI/ML Tech Lead Intern

Infosys Springboard

Aug 2025 - Nov 2025 (3 months)

Owned an ML production system serving 150+ enterprise users with 99.9% SLA, managing end-to-end SDLC and achieving under 1 hour incident response time. Led a team of 5 on ML pipeline development, scaled inference 3x through performance optimization, and implemented CI/CD with automated testing for zero-downtime deployments.

Python SDLC Machine Learning Pipelines CI CD Pipelines Automated Testing Performance Optimization SLA Management