Is your app slow, crashing, or expensive to change?
I rescue broken and risky software. Apps a departed agency left behind. Apps built with AI tools like Lovable, Replit, or Cursor that work in a demo and fail in production. AI features that half work. Stalled internal AI projects. I find out what you actually have, with evidence, and give you a plan your team can act on. It starts with a fixed-price audit. It ends with software you can ship on again.
✅ AI-built and human-built codebases ✅ Fixed, published prices ✅ A report your team can act on ✅ Hands-on rescue when you want it fixed for you
Services
Fixed-Price Audit. From €1,500
Know what you actually have, and what to do next, in 5 to 10 days. Three variants: AI-Codebase Audit €2,900, Mobile App Audit €2,900, Emergency Project Analysis €1,500.
I personally review your codebase across 5 lenses: architecture, code quality, performance, stability, delivery pipeline
Scored report with a prioritized fix plan, quick wins first, with effort estimates
2 follow-up calls to walk your team through it
AI-built and human-built codebases. iOS first, plus Flutter, React Native, Android, and the backend behind the app
Remediation & Takeover. €15k to €45k
When the app needs to be fixed, not just diagnosed. Always scoped from an audit, split into phases of 2 to 4 weeks.
Each phase has its own deliverable and price, and you approve it before the phase starts
Crash reduction, performance work, architecture cleanup, tests and CI/CD, release support
Hardening and completing AI-built codebases so they hold up in production
Stabilization Retainer. €2,500 to €6,000 per month
After a rescue, or instead of a full-time hire. A senior engineer who already knows your codebase keeps it releasable.
Monitoring, dependency and OS updates, crash triage, and small features
Guaranteed response times
Cancel monthly. No lock-in
Book a free 20-minute triage call
You tell me what is going wrong, or what you want to be sure about. If an audit is not the right tool, I will say so.
On the call we’ll cover:
Goals & constraints (timeline, team, stack)
What’s slowing delivery (bugs, performance, architecture, process)
A concrete plan (next steps + whether I’m a fit)
No sales pitch. If I’m not the right person, I’ll tell you quickly
Pick a time below
Timezone: CET (Netherlands)
You’ll receive a calendar invite immediately
About me
Hi! My name is Mostafa. I am a senior iOS Software Engineer, I have been building iOS apps for clients since 2017 and I work as a contractor with teams from all over the world.
I help teams ship features steadily, modernize legacy code, and improve performance & stability without slowing down delivery. I integrate quickly into existing workflows (tickets, PR reviews, releases) and focus on work that reduces risk and saves future engineering time. Based in the Netherlands (CET), available for remote work
Working with me gets you:
Weekly progress updates with clear scope and risk flags
Pragmatic refactors that improve velocity
Performance: slow screens, leaks, startup time, scrolling hangs
Stability: crash investigation, monitoring and prevention
Testing strategy aligned to risk areas + CI-friendly PRs
Documentation and handoff so your team can keep moving
If you’re looking for senior iOS support, either contracting or a focused sprint, book a quick intro call and I’ll suggest the fastest path forward.
Reviews
“Well what can I say other than Mostafa was a god send. I posted my project not realizing how much work was actually involved to get it accepted to the app store. There was a lot of stuff I didn’t know and Mostafa was unbelievably patient with me, he went above and beyond in walking me through everything step by step. I had a few mistakes which were correctly quickly. I honestly couldn’t of asked for better service, I will definitely be using Mostafa for future work 10/10.”
“Very diligent individual and focuses on the client needs and satisfaction. I like how he asks questions to understand the needs and delivered the product. he keeps a cool mind and completes the task. I will definitely work with Mostafa again.”
“Delivered the project lightning fast without any issues. Very satisfactory”
“Very fast and reliable, thank you”
“He is A+++ in iOS App development. More work on the way, so this should explain”
“Awesome I recommend him 100% will give him other project he is expert in his job”
“Mostafa is very professional and very easy to work with. I will hire him for my new project for sure.”
Contact
Interested in working together? Fill out some info and I’ll be in touch shortly. I can’t wait to hear from you!