Logo of martinzoeller.com showing the letters “MZ” in white on a dark blue background.

Hello there!

Hello there!

Portrait photo of a man with a reddish beard and tied-back hair wearing a dark shirt in front of a blurred office background.

I'm Martin, a full-stack engineer specializing in iOS with seven years of experience working with companies of all sizes. I can help you reduce development costs and get features to market faster. How? Through pragmatic software architecture and comprehensive audits.

Services

Uncover Cost Pitfalls

iOS App Audit

When your iOS tickets move to the next sprint.

And then to the one after that.

Blind spots in the code.

Crashes that no one understands.

My iOS app audit uncovers the causes and shows you what is costing you the most money. You will receive a detailed report with a prioritized modernization roadmap.

Which small changes have a big impact?

You'll find out here.

Starting at €2,999. Takes 1-6 weeks, depending on the size of your app.

Overcome Capacity Bottlenecks

Software Engineering

Capacity bottleneck?

Failed offshore experiment?

Critical errors?

I'm happy to help, with many years of experience in various technologies and pragmatic software architecture.

I am productive from day one, guaranteed.

We'll discuss the job's mode of operation, scope, and payment during the interview.

What People Think About Me

”Martin often raised aspects in team discussions that no one had thought of before, which often led us to make better decisions. Hardly anyone listens as attentively as he does, nor can they explain complex things so clearly. Overall, he is an invaluable part of any team.”

Portrait photo of a smiling man with dark curly hair wearing a hoodie against a blue background.

Christian, Engineering Manager

OC Food Solutions GmbH

”No matter how complex the task was - if Martin took it on, you could be sure that it would not only be implemented properly, but also solved sustainably. […] He can explain technical decisions in a way that everyone can understand, quickly bringing teams to a common denominator.”

Portrait photo of a smiling man with short dark hair wearing a purple sweatshirt against a brown background.

Jonah, iOS Engineer

REWE digital GmbH

Companies I've Worked With

Logo of REWE Digital: Red background with a light blue rectangle. Inside, the text “REWE DIGITAL” in red block letters.

REWE Digital GmbH

Senior Software Engineer iOS

  • Technical migration of major revenue-critical elements of the REWE app
  • Fixing critical errors
  • Eliminating technical debt
Logo of Loql: Green text “Loql” with a symbol shaped like a beet or location pin with leaves.

OC Food Solutions GmbH

Mobile Software Engineer With a Focus on Flutter

  • Design, release, and further development of the mobile app and backend system
  • Helping shape development processes and taking part in strategic decision-making
Logo of LapID: Blue and dark blue capital letters “LAPID” on a white background.

LapID Service GmbH

Software Developer iOS and Backend (ASP.NET/C#)

  • Technical responsibility for two iOS apps
  • Design and implementation of major new features, as well as several migrations
  • Setup, maintenance and further development of backend systems
Logo of Itemdrop: A white rectangle symbol with orange signal waves on a black background, next to the word “Itemdrop”.

Itemdrop GmbH

Backend Engineer

  • Design, setup and further development of the backend system

That's all?

I'm still young — at least that's what people tell me. But you can add an entry here:

More About Me

LinkedIn

I talk quite a lot on LinkedIn. Basically about software engineering. Specifically about:

  • Software as a social discipline
  • Cost pitfalls
  • Opportunities and risks of AI as a tool
  • And sometimes about me

If you are not yet part of my network, I would love if you would connect with me!

iOS App: iana

My passion project: On the App Store since 2021. 100% crash-free.

Shuffle albums and generate playlists with Apple Music. It's free. It uses the modern Apple tech stack: SwiftUI, Swift Data, Swift Testing, async/await, Combine. Buzzwords!

Screenshot of the iana app showing “History”. Several albums or cover images are visible, currently playing is “Wave” by Philosopher King.
Screenshot of the iana app showing a playlist called “Workout Motivation”. A song “The Road Home” by Mary & the Chainsaws is displayed.
Screenshot of the iana app in Sandbox Mode. Suggestions for new playlists with titles such as “You and I”, “Ebb & Flow”, and “Ants of the Sky”.