I'm Vishal — a senior Full-Stack Ruby on Rails engineer with 8+ years turning early-stage ideas into production systems used by millions. APIs, payments, dashboards, scale.
Years shipping
Products live
Users served
I work with founders who care about velocity without breaking things later. From scrappy MVPs to compliance-grade APIs, I plug in as a tech-lead, ship features, harden infra, and mentor the team I leave behind.
Recent stack moves include Hotwire/Turbo, React + Inertia, background workers at scale, and serverless deploys on AWS.
Education
M.Sc. CA & IT · K.S. School of Business Mgmt. · 2016–2018
B.Sc. CA & IT · K.S. School of Business Mgmt. · 2013–2016
Ahmedabad, Gujarat
From MVPs to platforms doing $5M+ ARR. I've been in the room when every kind of bug shows up at 2 AM.
eCommerce, SaaS, marketplaces, social — across Japan, UK, US and India.
Cut query time 70% across 15 apps. Found and killed the N+1s your app didn't know it had.
Led teams up to 8. Mentored 15+ devs — 10 promoted to senior within 2 years.
backend
Ruby on Rails
Expert · 8 yrs
database
PostgreSQL
Expert
frontend
JavaScript / React
Advanced
api
REST · GraphQL
Expert
infra
Docker · AWS
Advanced
cache/queue
Redis · Sidekiq
Advanced
payments
Stripe · RakutenPay
Production
ci/cd
GitLab · Jenkins
Advanced
A snapshot of recent work — across cosmetics commerce, B2B procurement, CXM, and social platforms.
eCommerce · Cosmetics · ~1M customers
Japanese cosmetics & wellness marketplace serving Japan and Taiwan. Led campaigns, partner/public APIs, and automation for CSV uploads, marketing, and coupons.
SaaS · Procurement · UK
B2B procurement SaaS — e-contracts, surveys, auctions, reverse auctions. Rebuilt multi-step signup, authored React APIs, integrated reCAPTCHA, internationalised the UI.
CXM · Genpact, FM Global
Global CXM platform — built statistical reporting, real-time scoring, and auto-tagging that surfaces best Q&A and drives business decisions.
eCommerce + Social
Marketplace meets social network for beacons & adventure stories. Built APIs, integrated Stripe + S3, normalised DB, wrote extensive tests.
Real-time · 100K+ users
Scalable platform — messaging, notifications, feeds, real-time sync via WebSockets for over 100K users.
iOS · Android · GraphQL
High-performance REST + GraphQL backend powering iOS and Android apps with WebSocket real-time features.
A few measurable things that came out of the work — performance, revenue, and people.
Led DB optimization across 15+ apps. Cut query time by 70%, improving experience for 500K+ active users.
Built and led a team of 8. Mentored 15+ junior developers — 10 promoted to senior within two years.
Architected an eCommerce platform that did $5M+ first-year revenue. Built analytics that lifted conversion by 35%.
Whether it's a fresh MVP, a rescue project, or scaling an existing Rails app — drop a line. I usually reply within a day.
vishal.jariwala.pro@gmail.com
Location
Ahmedabad, GJ · India