Hassan.

— Hassan Ahmed · Shopify Plus · Laravel · Melbourne

Engineer in residence for Plus storefronts.

Five years shipping production-grade commerce on Shopify Plus and Laravel. End-to-end ownership — design, build, deploy, support — with work live across 20+ Plus stores, 180,000+ orders processed, and £10M+ in trade invoices settled self-serve.

Plus · Checkout Ext
Functions · POS
Laravel · Horizon
Melbourne (Remote)
Book a consult →See the work

— ABOUT

Hassan Ahmed
— MELBOURNE · SHOPIFY PLUS · 2026
Available for Q3 2026 engagements

Engineering out loud, since 2020.

I'm a full-stack software engineer who delivers and supports production systems end to end. My day-to-day spans Shopify Plus storefronts, Checkout Extensions, Shopify Functions, and the Laravel and Node middleware that keeps orders, inventory, shipping, and POS in sync.

I work with full ownership — scoping tightly, shipping in production-safe increments, then staying on for the operational tail. I translate ambiguous business requirements into maintainable technical decisions, and I keep both technical and non-technical stakeholders in the loop without being asked.

Five years in, the pattern is consistent: simple decisions, long-term maintainable systems, and revenue outcomes you can put a number against.

  • 2025 — Now

    Full-Stack Software Engineer · Eva (Melbourne, Remote)

    Sole engineer on storefront, Garage middleware, Shopify Functions, and POS — work previously held by a 3–4 person team.

  • 2023 — Now

    Lead Full-Stack Engineer · Devkind (Melbourne, Remote)

    Leading multi-client delivery: architecture, code review, CI/CD, mentoring interns, primary client contact.

  • Featured impact

    Shipping · Eva Garage · Londinium Espresso

    $250M+ attributed revenue · 250% sales lift · ~40% checkout perf gain · ~90% CI cost reduction

$0M+

Revenue impact

~0%

Checkout perf gain

0%

Sales lift

0+

Years on Shopify Plus

— THE STACK

The ecosystem, spinning.

— 01 / Corethe load-bearing tech.
06
— 02 / Adjacentdaily reach.
24
— 03 / Supportingwhen it’s called for.
45

— tap to pin · hover pauses the strata

— SELECTED WORK

Cases that moved the business.

Londinium Espresso

Londinium Espresso

A custom operations platform that runs Londinium Espresso's multi-region storefront, checkout, vendor fulfilment, and accounting from one place.

swell commercemulti-region e-commercexero integration
↑ 180,000+ orders processed since launch↑ ~6,000 hours of manual Xero entry eliminated
Case study →
Londinium Checkout

Londinium Checkout

A custom checkout for Londinium espresso machines that handles multi-parcel international shipping, trade invoicing, and six payment methods under one branded flow.

ecommerce checkoutheadless commercemulti-parcel shipping
↑ £10M+ in trade invoices settled self-serve↑ One checkout for retail, trade & invoice
Case study →
All case studies

— SERVICES

The ways I show up.

Shopify Plus Storefront Development

Performance-grade Plus theme builds and rebuilds.

  • —Liquid + JS modernisation
  • —Core Web Vitals budget
  • —Theme app extensions

— 01 / Development

Checkout Extensions & Customisation

Brand-safe checkout UI and logic via Checkout Extensions.

  • —State-based shipping rules
  • —Custom fields & validation
  • —Thank-you + order-status surfaces

— 02 / Customisation

Shopify Functions Development

Replacing Liquid scripts with typed, testable Functions.

  • —Discount / Delivery / Payment
  • —Marketing-team UI
  • —Staging → prod rollout

— 03 / Development

POS Extensions & In-Store Workflows

POS UI Extensions for retail staff, bound to real ops.

  • —Pre-order / delivery selectors
  • —Fulfilment-source logic
  • —Inventory + handover flows

— 04 / Workflows

Backend Integrations & Middleware (Laravel)

Laravel platforms connecting Shopify to shipping, ERP, POS.

  • —Horizon async workflows
  • —ShipEngine / Machship
  • —Grafana + Loki observability

— 05 / (Laravel)

Plus Migrations & Tech Audits

Migration scoping and architectural audits for Plus shops.

  • —Risk + rollback planning
  • —Performance baselines
  • —Prioritised remediation plan

— 06 / Audits

— WORDS

What clients say.

— 01 · Operations Lead · Shopify Plus retailer

“We brought Hassan in to untangle a Plus migration that had checkout limping. Inside six weeks he'd rebuilt state-based shipping in Checkout Extensions, replaced a brittle Liquid discount script with a Shopify Functions app, and handed our marketing team a UI to manage shipping rules without dev tickets. Revenue is up, checkout finally behaves.”

[ REF · Melbourne, AU ]

— 02 · Founder · Multi-vendor coffee retailer

“Hassan rebuilt the middleware between our storefront, Xero, and three shipping providers. Checkout got ~40% faster, international fulfilment reconciles cleanly, and the Cypress coverage he wrote has caught three production-breaking regressions before they hit customers. He reads our business, not just the ticket.”

[ REF · UK ]

— 03 · Engineering Lead · Remote-first product agency

“Hassan is the engineer you give the ambiguous, end-to-end work to. He scopes tightly, documents as he goes, and keeps non-technical stakeholders genuinely in the loop. He's shipped things other engineers would have stalled on — and stayed calm while doing it.”

[ REF · Global ]

— FAQ

The usual questions.

— CONTACT

Let's make something that ships revenue.

Tell me about the storefront, the constraints, and the outcome you're after. I reply within 24 hours.