Welcome!

Hi, I'm Roshan.

I'm a Senior Product Engineer with 7+ years of experience building scalable web platforms in fintech and enterprise SaaS. I love building products that solve real-world problems and make a difference in people's lives.

Read the blog Learn more

Contact

Let's connect

roshanjha.ece@gmail.com

New Delhi, India

Open to new opportunities

About Me

I'm a passionate Senior Product Engineer with 7+ years of building scalable web platforms in fintech and enterprise SaaS. I specialize in frontend architecture and full-stack development using tools like React, Next.js, TypeScript, and Node.js.

Throughout my career, I've had the privilege to lead architecture decisions, optimize legacy database queries and web application performance, and implement AI-augmented development workflows. I'm dedicated to producing high-quality code and bringing engineering excellence to the teams I work with.

What I Bring to the Table

System Architecture

Performance Optimization

AI-Augmented Workflows

Team Collaboration

Technical Leadership

Career Journey

Oct 2024 - Nov 2025Envisso

Senior Product Engineer

Built scalable merchant risk monitoring dashboard v2.0 (UI & BE) serving 50,000+ high-risk portfolios across multiple PSPs.
Achieved 10x performance gains on legacy database queries handling millions of records through indexing and query rewrites.
Implemented AI/LLM-integrated development workflow, increasing team velocity by 50% and reducing bugs by 90%.

Apr 2024 - Oct 2024Nagarro

Staff Engineer

Led UI feature development for subscriptions module of heavily trafficked ecommerce platform (100M+ users).
Improved subscription module Lighthouse scores to 90–100 via performance optimizations.
Owned UI development of an in-app notes generation feature, reducing user note-taking time by up to 50%.

Oct 2021 - Apr 2024Leena AI

Software Developer

Architected WebViews v2.0 repository using React.js with config-driven UI, reducing integration time by 70%.
Built REST APIs on Node.js/Express to integrate third-party applications like Oracle and SuccessFactors.
Collaborated on a unified components library improving developer experience and eliminating redundancy.

Sep 2018 - Oct 2021Infosys Ltd.

Senior Systems Engineer

Developed custom PL/SQL solution to replace job schedulers, improving performance by 20%.
Implemented data validation logic for 100K+ daily records from third-party systems, ensuring system stability.
Optimized query performance up to 90% by analyzing execution plans and implementing strategic indexing.