engineer
/ˌen.dʒɪˈnɪər/ · v.
building the thing that holds.
- Web apps
- E-commerce
- Management systems
- Financial trackers
01 — hero
AVAILABLE FOR PROJECTSSoftware engineer & digital marketer based in Lebanon — from the backend that holds under load to the audience that finds it.
Projects from $120 · I reply within 24 hours
from Old French relier— to bind together again. what I'm optimizing for in everything I ship: it holds, even after it breaks.
03 — about

I'm a software engineer finishing an M.Sc. in Computer & Communication Engineering. Most of my work lives in the JavaScript ecosystem, but the language is the least interesting decision — what I care about is the shape of a system: where the load lands, what happens when a call fails halfway through, what breaks first under pressure.
That instinct for structure isn't only technical — I read slowly and think in long chains of reasoning before I trust a conclusion. It shows up in how I engineer: understand the system before you touch it.
It's the same instinct behind the marketing. An audience is a system too: find where attention actually lands, fix what's leaking, then grow what works. So I don't just build your product — I help the right people find it.
Right now I'm going deeper into AI infrastructure, building Governor.
04 — services
Hire me for one, or for all four — the same person who builds it can market it, keep it running and grow it.
/ˌen.dʒɪˈnɪər/ · v.
building the thing that holds.
/ˈmɑː.kɪt/ · v.
getting it in front of the right people.
/səˈpɔːt/ · v.
keeping it running.
/ɡrəʊ/ · v.
turning an audience into a community.
05 — selected work
01 — LLM INFRASTRUCTURE
governor /ˈɡʌv.ər.nər/ · n. — a mechanical device that automatically limits speed. here: a gateway that automatically limits what an LLM call is allowed to cost.
A lightweight LLM gateway, built in Go (learning Go as I go). Real-time cost visibility and hard spend caps — atomic budget checks before a request goes out, mid-stream cancellation the instant one is hit — without standing up LiteLLM/Helicone-style infrastructure.
02 — PUBLIC INFRASTRUCTURE
Resident records, requests, internal workflows — built to hold up under the unglamorous, high-stakes load public systems actually see.
03 — SHIPPED & RUNNING
A management system for a working auto-service business in Africa — real customers, still in production. Built for reliability first: this one can't go down mid-shift.
My own brand, built like a client project: identity and wordmark, a navy/teal/coral visual system, post templates, and a content plan across four pillars (showcases, quick tips, behind-the-scenes, results). Running now on @se.hadimoustafa.
Animal shelter management system built to organize pets and products, with vet integration and medical records for each pet. Originally built to digitise stray animal tracking and adoption for a village in South Lebanon.
A centralized freelance marketplace empowering local Lebanese talent — creatives display portfolios and reach clients directly. Built as a collaborative internship project with TechTalks on the T3 stack (Next.js & Supabase).
A full system (mobile app + web platform) for enhancing the safety and support of girls and young women — real-time SOS emergency alerts and live location sharing via map APIs.
A multi-platform news app (Flutter/Next.js) with a world-map UI. Supabase/PostgreSQL-backed, using Gemini AI for summaries, quizzes, and toxicity filtering — schema tracks users, articles, and engagement across web and mobile.
06 — how we work
A free call to understand what you're building, who it's for and what success looks like.
A written scope with milestones, timeline and price, agreed before any work starts.
Regular working demos while I build. You see progress every week, not just at the end.
Go live, then support, marketing and growth, as much or as little as you need.
faq
Four, which can be combined: engineering (web apps, e-commerce, management systems), marketing (paid ads, growth strategy, content), support (onboarding, maintenance, troubleshooting) and growth (social strategy, content creation, community management).
Projects start from $120 for small jobs like fixes, landing pages or a content package. Larger systems are quoted after a free discovery call, with the price agreed in the proposal.
Within 24 hours, by email, Instagram DM or WhatsApp, whichever you used to reach me.
Yes. I'm based in Lebanon (UTC+2/+3) and work remotely with clients in other countries, and I plan overlap hours with your team.
Yes, that's the point of se.hadi. The same person who builds your system can market it, keep it running and grow its audience, so nothing gets lost between agencies.
Yes. Several of my systems are still in production, and I offer ongoing maintenance, fixes and improvements.
07 — contact
Tell me what you're building and where it hurts. I reply within 24 hours.
Prefer to message directly?
I reply within 24 hours