
Educational platform, built solo. Custom constraint-satisfaction engine for procedurally generated puzzles, plus a cryptographic anti-cheat system. 11,000-user peak in a single day on a single VPS. Zero marketing spend. Organic revenue.
Now I'm building for you.

Educational platform, built solo. Custom constraint-satisfaction engine for procedurally generated puzzles, plus a cryptographic anti-cheat system. 11,000-user peak in a single day on a single VPS. Zero marketing spend. Organic revenue.

Real-time emergency response system. Founding engineer leading the pilot. Client-side indoor navigation engine with sub-100ms routing that reroutes around active fire zones. Master-worker computer vision pipeline processing RTSP streams. Custom Android background service for persistent GPS tracking. Pilot contract signed.

Financial intelligence suite I designed and deployed end to end. Forecasting engine on Prophet, multi-source news aggregator with cryptographic deduplication, Telegram trading terminal for Binance and Bybit, and self-healing infrastructure at near-100% uptime.

Embedded as product engineer for an international marketing agency. First tool shipped in five days. The work grew into a set of internal tools the team ran daily. One translated content across 39 languages in a single pass, replacing hours of manual editing.
I work like a technical co-founder.
I treat your product like my own.
“Karim is a force of nature. He joined our team briefly to lead engineering for a project we expected would take weeks, but he got it done in just a few days. He's detailed in his work and has the ability to see beyond the code and be proactive, which is rare these days.”
“He single-handedly architected the entire ecosystem, including the real-time command dashboard, the mobile application, and the backend infrastructure. Karim requires zero hand-holding; you give him a problem, and he returns with a complete, working solution. I strongly recommend him to any team looking for an engineer capable of building complex systems from the ground up.”
“Karim has a rare talent for translating complex business requirements into working products. His ability to own the entire technical lifecycle of a product and deliver tangible results makes him an invaluable asset.”
Me. Every line of code and every technical decision is mine. I don't subcontract, and your work never gets passed down to a junior.
The name says agency because that's where I'm taking this. For now it's one person, by design. I keep it to two clients at a time, so you get my real focus, not whatever's left after everyone else. When I'm full, I'll tell you straight.
Hiring a senior engineer full time means a salary, equity, benefits, and months of recruiting before anyone ships anything. I'm a flat $5,000 a month. No equity, no benefits, no payroll to run, no recruiting. You start when you're ready and stop when you want to.
An agency puts an account manager and a layer of juniors between you and whoever actually builds. There's no layer here. You work with me directly.
I'm not a fractional CTO either. That's someone who sets strategy and manages your team from a distance. I'm the one in the code, building the product.
Async-first. I work in your stack: your repo, your Slack, your deploy setup. You don't move to my tools.
I send a walkthrough at least once a week, usually a short screen recording of what shipped, sometimes a written update when there's nothing to show on screen. If your team already runs a regular sync, I'll join that instead. I reply to anything within 24 hours.
You don't have to manage me. Dump what you have on me, organized or not, and I turn it into something real. I make the technical calls myself and bring the decisions that shape your product back to you. I won't turn you into a project manager, and I don't need you to write specs like one.
If you have designs, I build to them. If you don't, I'll make sensible calls on the interface, but I'm not a substitute for a designer when the work needs one.
Like autocomplete. They make me faster. They don't make the decisions, and they don't ship anything I haven't read line by line. The architecture, the judgment, and the quality are mine.
If you've been burned by an app an AI tool generated and nobody understood, full of holes and security problems, that's exactly the kind of work I take on.
Depends on what you're starting with.
If you have a running codebase, there's no long ramp. I get oriented and start contributing, not weeks of setup first.
If you have a prototype you or an AI tool put together and it's starting to break, I take it and turn it into something real. That's a normal place to start now.
If you have nothing but the idea, the first stretch is figuring out what's actually worth building before I write much. Demos, prototypes, cutting scope down to a real first version.
Either way, within the first month you'll have real work in front of you and a clear read on what it's like to work with me. You decide from there.
Plenty of people. A few clear ones:
If you want a pair of hands to execute tickets you've already written, and you want to review every line, hire a contractor. I work with ownership over the product, not as your fourth developer.
If your whole brief is one sentence and you expect me to invent the rest, this won't work. I'm at my best when you know what you're building.
If $5,000 a month is a stretch, or you're hoping to trade equity for the fee, this isn't it. I work with founders who are funded or making money, and I bill in cash.
If you want to manage me by the hour on daily calls, you'll be unhappy. I'm async, and you're paying for output, not hours logged.
You own the code and the IP. Always.
If the work lives in your own repo, it's yours from the first commit. There's nothing to hand over, you already have all of it.
If I've been running your whole stack, I hand everything back. The code, the credentials, and a written handover document so a new team can pick up where I left off. I've written a 12-page version of that before.
I ask for some notice before you wrap, so the handover is done properly instead of rushed. That work is part of the retainer. Your code is never held hostage, and you never pay to get it back.
Tell me what you're building.I'll get back to you within 24 hours.