0+Since 2020
Years experience
Production web work since 2020
Hands-on React, Next.js, WordPress, and WooCommerce work across agencies, SaaS teams, and direct clients — from one-week MVPs through long-lived platforms.
About
Premium websites, web apps, and AI-powered products — built to measurable outcomes.
I build high-performance digital products for teams that need more than a pretty frontend. My work spans React and Next.js applications, custom WordPress and WooCommerce systems, AI-powered features wired into real product flows, Core Web Vitals optimization, and the technical SEO setup that survives launch day.
Where AI belongs, I integrate LLMs, embeddings, and RAG pipelines directly into the product — content generation, internal search, support automation, workflow assistants — without the bolt-on chatbot feel. The goal is functionality that earns its place on the page, not a demo that somehow ships to prod.
The brief is always the same: ship cleanly, make it fast, keep editing practical for the client, and make sure tracking and search foundations aren’t an afterthought. Most engagements start with a short audit of what’s already in place — what’s worth keeping, what’s blocking speed, and where a focused rewrite will actually pay off — then move into tight scopes, steady check-ins, and a handover your team can build on.
Whether the goal is a faster storefront, a Next.js platform rebuild, or adding an AI layer to an existing stack, the approach stays the same: small decisions, made deliberately, compounded into a product that feels sharp today and stays maintainable a year from now.
Five years of shipping, measured.
The short version of what’s actually moved through production — experience, output, performance, and delivery. Every number here is backed by live sites, audit reports, or a handover you could call and verify today.
0+Landing pages → platforms
Sites shipped
WordPress · Next.js · WooCommerce
Production launches covering custom themes, headless storefronts, landing pages, and full platform rebuilds — each one documented and handed off clean.
0+Avg 28% LCP gain
Performance audits
Avg 28% LCP improvement
Focused Core Web Vitals work — image pipelines, caching, render paths, and JavaScript budgets — with before/after numbers the client can point to.
0%Across 50+ projects
On-time delivery
Measured across engagements
Estimates grounded in real scope, weekly check-ins, and a small surface area per sprint — so launch day is a non-event instead of a scramble.
Experience
Where I've worked and what I shipped there.
Four roles across the last five years — scroll through to see how each one stacks up.
- 2023 — Now
Rijbewijskeuring Holland
Full Stack Engineer
Full-stack work on an internal medical-scheduling platform — appointment flows, back-office tooling, and the everyday operations layer that keeps a clinic network moving.
- Cut admin workload by ~60% with rebuilt flows
- Typed end-to-end with shared schemas across client and server
- Long-running engagement — two years and counting
- 2023 — 2024
Carbon6
Frontend Engineer
Frontend on a data-heavy Amazon seller suite — complex tables, dashboards, and report builders built to stay legible when the dataset runs into the millions.
- Shipped dashboards handling 1M+ row interactions
- Owned the data-visualization layer across product lines
- Worked directly with senior product and data teams
- 2022 — 2024
ChargeGuard
React SaaS Developer
SaaS feature work on an EV-charging dispute platform — React 18, TypeScript, REST integrations, and the unglamorous state management that makes a support queue actually work.
- Delivered claim-management flows end-to-end
- Hardened the REST integration layer against partner flakiness
- Two years of steady feature delivery without a rewrite
- 2020 — Now
Upwork (Top Rated)
Senior Full Stack Developer
Ongoing freelance engagements with 50+ clients across WordPress builds, WooCommerce stores, Next.js landing pages, and Core Web Vitals optimization — long enough in the same lane to build real playbooks.
- Top Rated status — maintained across five years
- 50+ shipped projects, from landing pages to full platforms
- Repeat clients and long-running retainers as the default
“Qasim rebuilt our WooCommerce storefront and cut load time by more than two thirds. The handover was painless and editing is actually pleasant now.”
“Clear communication, careful code, and a real focus on performance. Our Core Web Vitals moved from red to green within a week.”
Services
Six focused engagements, shaped around the work I ship every week.
WordPress & WooCommerce
Custom themes, plugin work, WooCommerce builds, and ACF-powered editing flows that stay fast in production.
- Custom themes
- Plugin development
- WooCommerce stores
React / Next.js
Production-grade landing pages, apps, and dashboards built with TypeScript, App Router patterns, and a performance-first mindset.
- Next.js App Router
- TypeScript strict
- Server-first UI
Full Stack Applications
End-to-end web apps — frontend, backend, auth, database, and deployment. Node.js and TypeScript across the stack, with production patterns that scale past the MVP.
- Node.js + TypeScript
- Auth & databases
- REST / GraphQL APIs
AI-Powered Products
LLM integrations, embeddings, and RAG pipelines wired into real product flows — content generation, internal search, support automation, and workflow assistants that earn their place on the page.
- LLM + RAG pipelines
- OpenAI / Anthropic
- Embeddings & vector DBs
Performance Optimization
Focused Core Web Vitals work covering images, JavaScript, CSS, caching, CDN setup, and bottleneck removal.
- CWV audits
- Caching and CDN
- Before / after reporting
Technical SEO & Analytics
GA4, GTM, schema markup, crawl readiness, internal linking, and the tracking layer that measures what launch actually did.
- GA4 + GTM
- Schema markup
- SEO implementation
Engagements are quoted per scope.
Pick the track that fits — see the full services menu, or send over a brief and I’ll come back with a quote.
Stack
The toolkit behind the work — picked for stability, not trend-chasing.
- React
- Next.js
- TypeScript
- Tailwind CSS
- HTML5 / CSS3
- Node.js
- PHP
- MySQL
- REST APIs
- Server Actions
- Custom themes
- Plugin development
- WooCommerce
- ACF Pro
- Multisite
- Core Web Vitals
- GA4
- GTM
- Schema markup
- CDN / caching
Selected results
Outcomes clients actually felt — in speed, conversions, and time saved.
CWV score+45%Core Web Vitals
Next.js application
Revenue Engine Platform
Next.js · React · TypeScript · GA4
Hours / week−60%Admin workload
Web application
Rijbewijskeuring Holland
React · TypeScript · Node.js · REST
Page load1.8sLoad time
WordPress / WooCommerce
Meseo.dk Platform
WordPress · WooCommerce · ACF · Multisite
Conversion+38%Conversion rate
E-commerce
WooCommerce Store
WordPress · WooCommerce · Performance · SEO
Writing
Notes from the build — performance, SEO, and WordPress, in depth.
WooCommerce HPOS Bulk Order Status Update Failing Silently
WooCommerce HPOS bulk action shows 'Updated' but order status never changes? Here is why the legacy hook fires on the wrong table and the action fix that holds.
Next.js 16 unstable_cache Migration: Build Errors and the Fix
Next.js 16 build failing after replacing unstable_cache with 'use cache'? Here is why the closure error fires and the exact migration pattern that compiles.
GA4 Conversions Missing After Server-Side Tagging Migration
Moved GA4 to server-side GTM and your conversions dropped to zero? Here is why the client_id is being dropped and the header forwarding fix that brings them back.
Contact
Need WordPress, Next.js, performance, or analytics work done properly?
If the site needs to look sharp, load fast, rank cleanly, and still be maintainable after handoff — that’s the lane I work in.