Hi, I'm Jillur Rahman
I build fast Shopify stores and Next.js websites that convert.

I specialise in front-end development — primarily Shopify theme development (Liquid, Shopify sections, Storefront API) and React/Next.js web applications. I also handle UI implementation from Figma, GSAP animations, performance optimisation, and ongoing maintenance retainers.

Both. For well-defined scopes I prefer a fixed project price so you know exactly what you're paying. For open-ended work or ongoing support I offer hourly or monthly retainer arrangements. Get in touch with your brief and I'll recommend the best fit.

A short brief covering: what you're building, who it's for, any design files (Figma, Adobe XD, or screenshots), your tech stack preferences, and a rough deadline. The more detail you share upfront, the more accurate my estimate will be.

A custom Shopify theme usually takes 2–4 weeks. A full Next.js marketing site or app takes 3–6 weeks depending on complexity. I'll give you a realistic timeline in the proposal — and I stick to it.

Absolutely. Most of my clients are based in the US, UK, Canada, and Australia. I'm comfortable working across time zones and communicate clearly in English via email, Slack, or WhatsApp.

Yes. I'm experienced with PR-based workflows, Git branching conventions, and code review cycles. I can slot into your existing React or Next.js codebase without disrupting your team's process.

All code is handed over with a walkthrough and basic documentation. I offer a short bug-fix window after launch at no extra charge. For longer-term support, a monthly retainer keeps me available for updates, fixes, and new features.

Yes. I've worked with Shopify's Storefront API and Hydrogen framework to build decoupled storefronts using React and Next.js. Headless is a great option when you need maximum performance and design flexibility beyond what standard themes allow.

Yes — this is one of my most common requests. I work in a duplicate theme to develop and test all changes before any go live. You only switch over to the new theme when everything is approved and ready, so there's zero risk of downtime or breakage.

Every project includes a dedicated revision round after the initial delivery. I address all reasonable feedback within the agreed scope at no extra cost. Requests that expand the scope are quoted separately and added to the project as an amendment.

Absolutely. If your project involves proprietary designs, unreleased products, or sensitive business logic, I'm happy to sign an NDA before we begin. Just send one over and I'll review it promptly.

Yes. I'm comfortable working with Storybook, shadcn/ui, Radix UI, and custom design tokens. If you have an existing component library, I'll build new UI within those constraints to ensure consistency across your product.

I run Lighthouse audits at the start and end of every project. Specific improvements include lazy loading images, code splitting, tree shaking, preloading critical assets, optimising LCP/CLS/FID, and reducing bundle size. I target a Lighthouse score of 90+ across all categories.

I accept bank transfer, PayPal, Wise, and Bkash. For new clients, I typically work with a 50% deposit upfront and the remainder upon delivery. For retainer arrangements, I invoice monthly in advance.