Premium web & app development. Built fast, built right.
Build and launch sprint
A focused engagement to ship one high-impact product milestone without wasting cycles.
Included in the sprint
- Scope lock workshop (90 min)
- UX/UI + fullstack implementation
- QA, deployment, and handover docs
Kickoff
within 7 days
Delivery window
~4 weeks
Replies
< 24h on weekdays
Trusted by
Every layer of the stack, covered.
Web Development
Marketing sites, SaaS landing pages, and full-stack web apps built for speed, clarity, and conversion. From Figma to production in days, not months.
App Development
Scalable web applications with solid architecture. APIs, databases, auth systems — all wired up and ready to grow.
UI/UX Design
Design systems and interfaces that look premium and feel intuitive. Figma to pixel-perfect code.
AI Integration
Chatbots, automation workflows, and AI-powered features embedded directly into your product. Fast to ship, built to last.
Product Marketing
Positioning, messaging, and go-to-market strategy that turns your product into a story people want to tell.
Marketing
Content, email campaigns, and growth strategies built around real user data — not guesses.
Product Management
Roadmaps, specs, and prioritization frameworks that keep teams aligned and shipping the right things.
SEO
Technical audits, on-page optimization, and content strategy that compounds over time.
Results that speak for themselves.
PayFit Full marketing platform rebuild
Rebuilt the entire marketing site on Gatsby with a headless CMS, serverless Lambda functions, and HubSpot integrations — delivering a measurably faster and more maintainable platform.
Core Web Vitals improved across all metrics, reducing bounce rate significantly.
SaaS platform from 0 to production
Designed and built a full-stack B2B SaaS platform — from auth system to billing, dashboard, and onboarding flow — in 6 weeks. Solo build, production-grade.
Launched on schedule, onboarded first 3 enterprise clients within the first month.
Teacher's assistant — AI-powered lesson prep
An educational SaaS designed to drastically cut the time teachers spend preparing lessons. AI generates structured course plans, exercises, and assessments from simple prompts.
Early testers report saving 3–5 hours per week on lesson preparation.
Lead generation redesign
Redesigned the marketing site and lead funnel for a B2B HR startup. New messaging architecture, improved CTA hierarchy, and A/B tested conversion flows.
MQL volume grew substantially quarter-over-quarter after launch.
Fast, transparent, no surprises.
Discovery
We align on goals, scope, and timeline. I ask the right questions so nothing gets lost in translation.
Design
Wireframes and high-fidelity mockups in Figma. You see exactly what we're building before a line of code is written.
Build
Clean, documented code. Weekly updates. You're never left wondering where the project stands.
Launch
Deployed, tested, and handed over with full documentation. I stay available for 30 days post-launch.
Merwan Guerrib
Fullstack developer with 6+ years building web products for startups and scale-ups. I've shipped features used by hundreds of thousands of people at companies like PayFit and Capgemini.
I work best at the intersection of solid engineering and product thinking — writing code that's clean, fast, and built for the real world.
Based in Marseille, available worldwide.
Let's build something together.
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