Custom WordPress engineering
Bespoke themes built from scratch — Gutenberg block development at the core. No page-builder bloat, no premature abstractions, no vendor lock-in.
Includes
- Gutenberg blocks
- Custom themes
- Composer-driven OOP
Hi, I'm
Five years building 150+ production WordPress sites for clients across North America, Europe, and South Asia. Currently at CrackTech — building SaaS and product-focused platforms in Dhaka.
Sites delivered
Years experience
OSS plugins
Case studies
What I do
Most engagements blend a few. Pick what's relevant or send a note describing the outcome you actually need.
Bespoke themes built from scratch — Gutenberg block development at the core. No page-builder bloat, no premature abstractions, no vendor lock-in.
Includes
Production PHP / JavaScript plugins shipped to the WordPress community — six already public on GitHub.
Includes
WPGraphQL into Astro / Next / Remix. Decoupled, fast, ISR-friendly — for teams that need their CMS and their front-end to evolve independently.
Includes
Custom checkouts, payment gateway integrations (Stripe, PayPal, etc), and B2B / multi-vendor flows shipped to production.
Includes
Core Web Vitals tuning, query profiling, Schema.org markup, structured data, and clean Lighthouse scores — built in throughout, not bolted on.
Includes
Modern AI tooling integrated into delivery pipelines, internal dashboards, and editorial flows — to slash timelines and improve technical decisions.
Includes
Featured work
Live MCQ
Backend + custom plugin engineering
Sustained millions of MCQ attempts per month with sub-100ms p95 attempt write.
Dinnova AG
Software Engineer · Team Lead
Led the WordPress rebuild that became the team page for 25+ global engagements.
Osteopathy Healwell
WordPress engineering · SEO
Lighthouse 99 across all routes, organic traffic up 3.2× year-over-year.
TabazMart
WooCommerce + Pathao courier integration
Automated shipping for 12k+ orders/mo, zero manual courier handoffs.
The process
Five phases, weekly written updates, a deployable preview at every milestone. Drag the cards →
Experience
From freelance remote developer to engineering lead. Each role layered something new.
Jul 2025 — Present
CrackTech Limited · Dhaka, Bangladesh
Jan 2024 — Jun 2025
Dinnova AG · Dhaka · Zürich (HQ)
Mar 2023 — Dec 2023
Softaid Technology · Khulna · Sydney (HQ)
Jan 2021 — Aug 2022
AtZ Technology · Dhaka, Bangladesh
Jan 2020 — Aug 2020
DigitalAmbition · Greater London, UK
Currently taking on new work — pick the channel that suits you and I'll reply within 1–2 business days.
Open source
Public PHP and JavaScript plugins shipped to the community. Each one started as a client need and became a reusable tool.
Real-time WooCommerce sales tracking with revenue charts, product performance metrics, and advanced filtering.
Pathao logistics integration for WooCommerce — automated shipping labels, live delivery tracking, and order sync.
Activates app-specific CSS, JS, and menu logic when the site is loaded inside a mobile WebView — domain-based detection.
Centralized hiring plugin with custom status management, applicant tracking, and an interview pipeline dashboard.
Sales booster: 'Buy Now' buttons, smart discounts, and 'Bought Together' suggestions to maximize order value.
API-driven microservice that distributes MCQ and job data across client sites with granular admin control.
Pricing
Most engagements start with a free 30-minute discovery call. Hourly and weekly retainers from there — you pick the cadence that fits.
For one focused build with a clear shape.
fixed scope
For ambitious work where every detail matters.
fixed scope
Embedded engineering for product teams.
scoped together
Trusted by
Showmik led our WordPress team through 25+ global engagements. Code reviews, CI, WP-CLI standards — none of it existed before he joined. We ship like a real product team now.
Five WordPress builds shipped in under six months — every one with custom plugin work and zero post-launch incidents.
The plugin engineering Showmik did for our scoring pipeline is the difference between scaling and not scaling. Millions of attempts, no incidents.
Best WooCommerce engineer I've worked with. He shipped our Pathao courier integration in a week — automated 12k+ orders a month.
Disciplined, async, results-driven. Production sites that pass Lighthouse 99 without us having to ask twice.
A WordPress site that loads under a second on Canadian rural broadband. Bookings up 3.2× year over year.
Async, remote-first, and unflappable. We threw three different agencies' codebases at him — he untangled all of them.
35+ projects, every single one delivered on time. He sets the bar for what 'senior' means in our market.
FAQ
A 30-minute discovery call to understand the outcome you need. If it's a fit, you get a written scope, fixed-cost or weekly retainer estimate, and a timeline within 48 hours. After kickoff: weekly written progress notes, a deployable preview every Friday, GitHub access from day one.
Get in touch
The shape, the deadline, any constraints. I reply within 1–2 business days with either a written next step or an honest "not the right fit."
showmikhassan455@gmail.com