I'm Mark.I solve digital problems and ship results fast.
What I Do
I build software, implement AI, and solve the digital problems that keep you stuck. No fluff, no frameworks - just things that work.
Custom Apps & Software
Need something built that doesn't exist? I'll build exactly what you need - no bloat, no feature creep, just code that does the job.
AI That Delivers
Everyone's talking AI, but most of it's hype. I build AI solutions that genuinely solve problems instead of creating new ones.
Mobile Apps
iOS, Android, cross-platform - I've shipped apps used by millions. From concept to App Store, I can build the whole thing.
Build vs Buy
Should you build it or buy it? Use AI or stick with proven methods? I'll give you the straight answer, not the vendor pitch.
Automation
Still doing things manually because 'that's how we've always done it'? I'll automate the boring stuff so you can focus on what matters.
Integrations & APIs
Tired of copying data between systems? I'll wire your tools together so they talk to each other.
Sound like someone you'd want in your corner?
Schedule a CallCompanies I've Worked With
Some of the companies I've helped stop guessing and start building.




Stuff I've shipped
From 3-person startups to apps with millions of users. I've built mobile apps, AI systems, internal tools, and everything in between. Here's what people say about working with me.
Products That Scale
The Gymshark app? Built to handle Black Friday traffic. Next retail apps? Processing millions of orders. I build things that work under pressure - not just demos that fall apart when real users show up.
Code That Lasts
I don't write throwaway code. The systems I've built are still running years later, handling more traffic than ever. Good architecture pays dividends - I build foundations you can grow on.
“Mark rebuilt our mobile apps from the ground up. The new apps handle millions of transactions and completely changed how our customers shop. He doesn't just write code - he ships products that move the needle.”
“Mark built the mobile engineering team from scratch. The apps he architected are used by millions of people worldwide. He's one of those rare engineers who can see the big picture and still write clean code.”
“Mark is a proper craftsman. He built systems for us that are still running years later without issues. When you need something built right the first time, he's the person you call.”
Got something to build?
Whether it's a new product, a broken system, or an idea that needs code behind it - let's talk.
Got a Problem?
Something broken? Need a second opinion on your architecture? Let's figure out what's wrong and how to fix it.
Tell Me What's BrokenGot an Idea?
Need an app built? A system automated? AI integrated? I'll turn your idea into working code.
Let's TalkNeed Ongoing Help?
Want a technical partner you can call when things get complicated? I work with a handful of companies on retainer.
Let's Talk RetainerOr reach out directly:
hello@markdarling.com