CJ
Chandan JoshiSenior Shopify Developer · Founder, Artzen Technologies
Open for new projects

I build Shopify stores and apps that sell — then help them grow.

Top Rated on Upwork and 5-star on Clutch. Custom and public Shopify apps, Plus builds, B2B and migrations — plus the SEO, paid ads and email marketing that bring the traffic in.

Upwork
★★★★★★★★★★5.0 · Top Rated
99% Job Success · 622 jobs
Clutch
★★★★★★★★★★5.0
3 client reviews · Artzen Technologies
LinkedIn
★★★★★★★★★★5.0
Client recommendations
Work

Real projects, real numbers

Every figure comes from the app's own analytics or live order data. This is a short selection — the full portfolio has every store by niche, all Shopify Plus builds, and every app case study.

Live

ePartMaster — fitment search for auto parts

A VIN and Year/Make/Model fitment engine so customers stop guessing whether a part fits. Bulk CSV import, reverse lookup by part number, live on a production storefront.

47,552 fitment records processed across 9 imports
Live · Shopify App Store

Royal — designer royalty payouts

A self-serve royalty engine for stores selling designer collaborations. Designers see live balances; the merchant never calculates a payout by hand.

$538.61 tracked across 73 orders on one store
Live

Zone Collection — membership & loyalty

Paid membership tiers with points and loyalty, synced between POS and online across two physical retail locations.

In-store and online, POS-synced
Delivered

Bailey Recipe Manager — pet food personalization

16 master recipes scaled per dog automatically. A quiz answer becomes a personalized recipe email in seconds through Klaviyo — no manual work per order.

16 recipes, unlimited personalized combinations
Services

What I can take off your plate

From custom app engineering to the marketing that drives traffic to it — one person accountable for both sides.

Shopify development

Build it properly

Custom Shopify apps

Embedded Admin API apps built from scratch — forecasting, payouts, fitment search, quiz automation.

Public Shopify apps

Built for the Shopify App Store, not just private client builds — including billing and app review.

Speed optimization

Faster load times and checkout flows that convert more of the traffic you already pay for.

Hydrogen / headless commerce

Composable storefronts for brands that have outgrown a standard theme.

Shopify Functions & Checkout Extensibility

Custom checkout logic and UI extensions on Shopify's newer Plus toolkit.

Cross-platform migration

WooCommerce, Magento or Webflow to Shopify — or the reverse — with URLs, SEO and order data planned from day one.

CRO-based design

Stores designed around what makes people buy, not just what looks good in a screenshot.

Store-to-mobile-app conversion

Turn a Shopify storefront into a native mobile app experience for your customers.

B2B & wholesale storefronts

Hands-on integration and customization for stores that sell to other businesses, across the full range of wholesale requirements.

  • Customer-specific / tiered pricing by customer tag or company
  • Net-terms checkout & manual payment capture
  • Minimum order quantities & case-pack / multiples logic
  • Quote requests & RFQ workflows before checkout
  • Company accounts with multiple buyers & roles
  • Draft orders / order-on-behalf-of via API
  • Private catalogs, hidden from the retail storefront
  • Approval workflows before an order is placed

Growth marketing

Then bring the traffic

Ecommerce SEO

Google Merchant Center, product feed hygiene, and organic growth built around storefronts.

PPC & paid ads

Google, Meta and LinkedIn campaigns managed against real conversion data, not vanity clicks.

Social media marketing

Organic and paid social calibrated to what your store actually sells.

Email marketing

Klaviyo flows — abandoned cart, post-purchase and personalization automation.

A developer with digital marketing experience. One person from build to growth — no handoff gap between the team that built the store and the team that markets it.

Book a free call
How this compares

Three ways to get a Shopify project built

Every route gets you a working store eventually. The difference is who is actually behind the keyboard, and what happens when something breaks after launch.

Offshore volume shopMarketplace freelancerWorking with me
Same person, kickoff to handoffRotates by sprintDepends on the listingYes — direct line to me
Shopify Plus / enterprise experienceVaries widelyRarely verifiedYes — 4 Plus builds shipped
Development + marketing in one placeSeparate vendorSeparate vendorYes — build and grow, no handoff gap
Response time on WhatsAppTicket queuePlatform inbox onlySame day, usually within the hour
Code ownership on handoffSometimes retainedUsually yoursAlways yours
Client reviews

What clients say

Written recommendations from LinkedIn, plus ratings from completed Upwork contracts.

Recent 5.0 contracts on Upwork

Ratings taken from completed Upwork contracts.

Pricing

Priced around your scope

Every project is quoted after a short discovery call, once the scope is clear. Marketing retainers are quoted separately by channel and ad spend.

Fixed-scope build

For a defined deliverable
  • New store build or theme customization
  • Shopify Plus or platform migration
  • Single custom app or integration
  • Fixed price, fixed timeline
Get a quote

Monthly partnership

Build and grow, ongoing
  • Dedicated development hours, booked monthly
  • CRO, speed optimization, feature work
  • Optional SEO, PPC or email add-on
  • Priority WhatsApp response
Get a quote

Shopify Plus & enterprise

Larger, higher-stakes builds
  • Headless or composable storefronts
  • Multi-store & B2B configurations
  • Dedicated architecture review
  • Custom SLA on request
Get a quote
FAQ

Before you reach out

Yes. I build the store and, if you want it, run SEO, paid ads, social and email on top of it. You can also hire me for just one side — it is not a package deal.

Yes — four Shopify Plus builds so far. If your store is on Plus, say so on the discovery call and I will scope for it specifically.

Regularly. I start with a short code and store audit before quoting, so you know exactly what you are inheriting.

The full portfolio has every Shopify store by niche, all Shopify Plus builds, every app case study with real screens, plus WordPress and Magento work.

You do — fully, on handoff, no exceptions.

Defined builds get a fixed price after the discovery call. Ongoing development or marketing runs as a monthly block. Either way you get a number before I start, not after.

Have a project in mind?

Tell me what you are building and where it is stuck. I read every message myself — most people hear back the same day.