Nivesh Saharan · Full-stack engineer & founder · Gurugram, India
14 years in, I still ship the code myself: Shopify apps and storefronts, custom web platforms, mobile apps and EVM products — first as a three-time founder, now as the senior execution layer for brands and teams that need things built properly.
Long-term partners since 2017
Fabric Wholesale Direct
Truck Mount Forums
INNBeauty Project
By Simran01Services
Implementation-first engagements, not strategy decks. Each track comes with clear scope, milestones and launch support.
Founders and product teams shipping greenfield or legacy modernization projects.
Production-grade web platforms and mobile experiences built with clear architecture, measurable performance, and maintainable code.
D2C brands, Shopify Plus teams, and agencies that need senior execution across storefront, apps, checkout logic, and operations.
End-to-end Shopify engineering to improve conversion, unlock custom workflows, and keep releases stable during growth and campaign cycles.
Teams launching tokenized products, smart contracts, and web3 integrations.
Design and build secure EVM smart-contract-based products with practical UX and maintainable full-stack systems.
02Selected work
Most of my clients have worked with me for years: storefronts that keep converting through campaign season, apps that keep shipping, and operations that stop needing manual rescue.
Shopify store · shipping automation (Shipping+)
Shopify theme development, store customization, discount app/function workflows, ShipStation integrations, and shipping automation tooling.
Shopify store · membership program · custom discount app
Shopify theme engineering, advanced discount app development, recurring sales setup support, and third-party integration work.
Shopify Plus · redesign · bundles & discounts
Shopify Plus redesign, custom bundle and discount app development, ongoing sales engineering support, and day-to-day store enhancements.
Shopify store · returns & warranty portal
Shopify store engineering including a custom-built returns and warranty portal, internal workflow apps, and ongoing operational enhancements.
Built and iterated multiple Shopify conversion apps focused on upsell, social proof, and checkout experience improvements.
Created a product that allows users to launch verified ERC-20 tokens across major EVM chains without writing smart contract code.
Modernized and extended custom client web applications with stronger performance, cleaner integration layers, and improved maintainability.
By the numbers
The numbers that matter in client work are not vanity metrics. They are how long people keep working with you, and how much of what you shipped is still running.
03Products
2 products live today — Payback on iOS, Android and the web as OweJar, and Hoursmith for time tracking and invoicing — plus 9 public Shopify apps shipped as a founder. Building your own products keeps you honest about what “done” means.
Dues & splits
Track who owes whom. Split expenses. Settle up.
Time tracking & invoicing
Projects, tasks, time and invoices in one clean workflow.
Built while co-founding Yopify and Sellify Apps · 2014–2020
ULTIMATE Cart Drawer
Slide-out cart drawer for faster checkout paths.
ULTIMATE Countdown Timer
Urgency timers for campaigns and launches.
ULTIMATE Currency Converter
Localized pricing for international shoppers.
Surveyor
Customer surveys for merchants.
ULTIMATE Post Purchase Upsell
Post-purchase offers that lift average order value.
ULTIMATE Announcement Bar
Storefront announcement bars and promotions.
Yo
Social proof notifications for storefronts.
Thank You Page Customizer
Customizable post-checkout thank-you pages.
Sticky Buy Button
Always-visible add-to-cart on product pages.
04How we work
The same four-step rhythm whether it is a two-week fix or a year-long rebuild. It keeps live stores stable and keeps you in control.
A short call, then a look at the code, theme or infrastructure you already have. We agree on outcomes before anything is built.
A written technical specification with sequencing, dependencies and business impact, so you know what ships when.
Staging-first implementation with QA across devices, buyer journeys and edge cases. You see progress every week, not at the end.
Controlled rollout with analytics checks and an iteration backlog. Many partnerships continue as ongoing execution retainers.
05Writing
Practical write-ups on Shopify, Laravel, JavaScript, Rust and the servers underneath. Written for engineers who have to ship on Monday.
Jun 27, 2023 · 5 min read
There are two primitive compound types in Rust: Arrays and Tuples.
Jun 26, 2023 · 4 min read
JavaScript objects and arrays are fundamental data structures used to organize and store data. In this comprehensive guide, we will explore the concepts of objects and arrays, provide relatable examples for both technical and non-technical individuals, and delve into safe techniques for copying and modifying these data structures. By following the discussed techniques, you can ensure data integrity, avoid unintended side effects, and confidently work with JavaScript data.
Jun 23, 2023 · 3 min read
Welcome to Rust for JavaScript Developers! It's fantastic to have you here. Let's dive right in.
Taking on new projects
Tell me about the storefront, product or platform you’re working on. A 30-minute call is usually enough to map the first steps.
