Senior frontend engineer

Mohamed Hasan

I partner with product teams to ship polished, fast web applications — from marketing sites and dashboards to Web3 products — with clear information architecture, robust engineering, and UX that holds up in production.

  • 11+ years shipping production UIs and design systems for SaaS, agencies, and Web3
  • Team lead experience: roadmaps, code review, and mentoring without slowing delivery
  • Performance-first: Core Web Vitals, accessibility, and maintainable TypeScript
Next.jsReactTypeScriptTailwindWeb3Design systems
Experience

11+ yrs

Production & lead roles

Deliveries

2000+

Engagements shipped

Focus

Ship quality

Speed with guardrails

Trusted by teams and founders

Long-term collaborations across fintech, marketplaces, creative tools, and blockchain products.

StorageX
Envato
Propmaster
Bolesa
Jirian
StorageX
Envato
Propmaster
Bolesa
Jirian
StorageX
Envato
Propmaster
Bolesa
Jirian
StorageX
Envato
Propmaster
Bolesa
Jirian

About Me

Senior front-end and product-minded engineering

I have spent the last decade helping teams take ideas from rough concepts to well-structured, accessible interfaces — including marketing pages, content-heavy products, and complex dashboards with real-time data. My sweet spot is at the intersection of user experience, performance, and a codebase that is easy to extend.

Whether you are an early-stage founder or an established org modernizing a legacy UI, I can plug in as a hands-on individual contributor, a tech lead, or a bridge between design and implementation — always with shared ownership and clear communication.

Stack & tools

  • Next.js (App Router)
  • React & TypeScript
  • Tailwind & Shadcn
  • Prisma & PostgreSQL
  • Ethers, wagmi, viem
  • CI, Vercel, automation

Tooling is chosen for team fit — I have integrated design tokens, headless CMS, analytics, and wallet flows across different stacks.

  • 11+

    Years shipping production UIs

  • 2000+

    Client-facing deliveries

  • SaaS → Web3

    Cross-industry experience

  • Clarity over cleverness

    Code and UI should be obvious to the next person — whether that is a teammate, a client, or you six months from now.

  • Velocity with guardrails

    I ship fast with linting, types, and sensible abstractions so speed does not turn into long-term technical debt.

  • Design ↔ engineering

    I work comfortably with Figma, component libraries, and product constraints to align visuals with what is actually shippable.

Services

What I help teams build

From greenfield products to high-traffic refactors, I bring a full-spectrum front-end practice: system design, implementation, and the operational habits that keep quality high after launch.

  • 01

    Next.js application development

    • Production App Router: layouts, Server Components, parallel routes, and streaming where it helps
    • Data layer: Server Actions, caching strategy, and edge-friendly APIs
    • Prisma, PostgreSQL, and secure auth patterns integrated end-to-end
    • Zero-downtime deploys, observability, and performance budgets (LCP, TTFB, INP)
  • 02

    React frontend & UI systems

    • Scalable design systems: tokens, theming, dark mode, and component APIs that scale with your team
    • Complex forms: validation, error states, accessibility, and great keyboard flows
    • Data-heavy UIs: tables, filters, virtualization, and optimistic updates
    • Shadcn, Radix, and Tailwind — or integrating your existing component library
  • 03

    Web3 product interfaces

    • Marketplaces, minting flows, and wallet connect UX that feels confident and error-resilient
    • On-chain reads/writes, gas-aware flows, and contract interaction layers in TypeScript
    • Block explorers, oracles, and indexing pipelines wired into a polished UI
    • Security-minded patterns for approvals, signatures, and transaction feedback
  • 04

    Custom admin & internal tools

    • CRUD back offices with search, permissions, and audit-friendly layouts
    • Dashboards, charts, and exports (CSV, PDF) for operations teams
    • Real-time or polling UIs, queue states, and operator workflows
  • 05

    Docs & learning surfaces

    • Documentation sites: structure, search, and MDX for developer audiences
    • Multi-language content setup with Fumadocs, next-intl, or a CMS you already use
  • 06

    Performance, a11y & polish

    • Bundle analysis, code splitting, image strategy, and edge caching
    • WCAG-driven fixes: focus order, contrast, semantics, and screen reader tests
    • UI polish: motion with restraint, consistent spacing, and microcopy that guides users

Process

How I ship production-ready products

A simple system that keeps projects clear, fast, and dependable from kickoff through iteration.

Discovery

We align on goals, constraints, and success metrics, then turn that into a practical scope.

Build

I ship in small, reviewable slices with performance, accessibility, and clean architecture in mind.

Refine

After launch, we tighten UX, polish edge cases, and keep velocity high without quality regressions.

Experience

A career built on products, not just pages

Highlights below are compressed for scanning — the full story is in my CV and, better yet, a conversation. I am happiest in teams that value honest estimates, design partnership, and shipping in sensible slices.

  1. Web3 Monkeys

    Co-Founder

    Co-creating a Web3-native brand: smart-contract-adjacent products, go-to-market sites, and partner delivery — balancing storytelling with technically accurate blockchain UX.

  2. Storage IT Solutions

    React Developer → Front-End Team Lead

    Grew from individual contributor to lead: own critical React/Next features, set front-end standards, run reviews, and align engineering with design and stakeholders on a multi-squad product.

  3. Ionic Hub (Digital & Web3 Agency)

    Founder

    Led an agency from proposal through delivery: product discovery, technical architecture, and hands-on build for web apps and early Web3 initiatives — hiring specialists when scope demanded it.

  4. Bootstrapious

    Front-End Developer / Theme & Plugin Developer

    Authored sellable HTML/CSS themes, jQuery plugins, and custom map integrations. Focused on documentation and consistent patterns so non-expert buyers could extend templates safely.

  5. Teck Station

    Front-End Developer

    Implemented responsive UIs and asset pipelines for local and regional clients, collaborating closely with back-end and design to keep iteration cycles short.

  6. Upwork & International Clients

    Freelance Front-End Developer

    Built bespoke marketing sites, WordPress/PHP customization, and early JavaScript-driven interfaces for a global client base — from quick MVPs to multi-page brand sites with interactive modules.

Testimonials

What clients say

A snapshot of feedback from marketplaces, startups, and agencies — not anonymous quotes: these are real people I have delivered for, often across multiple milestones.

We're highly satisfied with the work of Mohamed. Very professional and competent at what he does. Looking forward to work with him again.

Richard M.

Mohamed provided an excellent service, I was really happy to cooperate with him and I am already thinking about our next cooperation.

Ondrej Svestka

Mohamed has everything I needed: design skills, coding skills and is able to work independently.

Anna K.

Great experience overall. The work was delivered on time, and every detail we discussed was implemented accurately. Would definitely work together again.

Ahmed Fouad

Very professional and easy to work with. Communication was smooth, and the final result exceeded my expectations.

Antoine Morel

Super easy to work with. I appreciated how fast things were delivered and how open they were to feedback.

Mike Grant

We're highly satisfied with the work of Mohamed. Very professional and competent at what he does. Looking forward to work with him again.

Richard M.

Mohamed provided an excellent service, I was really happy to cooperate with him and I am already thinking about our next cooperation.

Ondrej Svestka

Mohamed has everything I needed: design skills, coding skills and is able to work independently.

Anna K.

Great experience overall. The work was delivered on time, and every detail we discussed was implemented accurately. Would definitely work together again.

Ahmed Fouad

Very professional and easy to work with. Communication was smooth, and the final result exceeded my expectations.

Antoine Morel

Super easy to work with. I appreciated how fast things were delivered and how open they were to feedback.

Mike Grant

We're highly satisfied with the work of Mohamed. Very professional and competent at what he does. Looking forward to work with him again.

Richard M.

Mohamed provided an excellent service, I was really happy to cooperate with him and I am already thinking about our next cooperation.

Ondrej Svestka

Mohamed has everything I needed: design skills, coding skills and is able to work independently.

Anna K.

Great experience overall. The work was delivered on time, and every detail we discussed was implemented accurately. Would definitely work together again.

Ahmed Fouad

Very professional and easy to work with. Communication was smooth, and the final result exceeded my expectations.

Antoine Morel

Super easy to work with. I appreciated how fast things were delivered and how open they were to feedback.

Mike Grant

We're highly satisfied with the work of Mohamed. Very professional and competent at what he does. Looking forward to work with him again.

Richard M.

Mohamed provided an excellent service, I was really happy to cooperate with him and I am already thinking about our next cooperation.

Ondrej Svestka

Mohamed has everything I needed: design skills, coding skills and is able to work independently.

Anna K.

Great experience overall. The work was delivered on time, and every detail we discussed was implemented accurately. Would definitely work together again.

Ahmed Fouad

Very professional and easy to work with. Communication was smooth, and the final result exceeded my expectations.

Antoine Morel

Super easy to work with. I appreciated how fast things were delivered and how open they were to feedback.

Mike Grant

Ready to collaborate?

Tell me about your product

Share a short brief — problem, timeline, and stack — and I will reply with a candid view on fit, effort, and the fastest path to a shippable milestone. If you are exploring multiple vendors, I am happy to compare options transparently.