Your partner for demanding projectsin Web, Mobile and AI.
We augment your team or take ownership of your web, mobile, or AI project end to end. Plus AI automations that save time and money. Legally secure as a German GmbH with a Google Developer Expert on the team.
Team augmentation, project delivery
and AI from one partner
Whether you need to strengthen your existing team or solve a specific problem:
We're here for you.
Team Augmentation & Project Delivery
We augment your team with senior engineers or take ownership of your web, mobile, or AI project end to end. Both flexible, legally secure, and at senior level.
AI Integration & Automation
We build AI solutions that actually land in your business processes and deliver measurable value. Beyond experiments. Real production use.
Full expertise. Zero compromise.
An experienced senior core team, flexibly extendable for larger projects through our network of vetted developers and freelancers. As a GmbH, we're your legally secure contractual partner, bearing the compliance risk.
Esra Kadah
As a Google-certified Flutter expert, Esra combines technological excellence with community leadership. Her GDE certification gives you access to Google insights and early-access features.
Sebastian Engel
Software engineer with over 13 years of experience. Sebastian is responsible for architecture, quality, and the long-term operation of your products, and integrates AI automations where they measurably save time and money.
Results in production
Our work runs in daily use with real customers. A selection of projects we've delivered or helped shape as engineering partners.
McFit
Flutter app for Europe's largest fitness chain. Part of a shared platform serving multiple fitness brands.
John Reed Fitness
Premium fitness app for the John Reed studios. Shared technical foundation with McFit, independent brand identity per app.
Gold's Gym
International fitness brand with its own app experience. Same technical foundation as McFit and John Reed, separate brand identity.
ImmobilienScout24
Germany's largest real-estate platform with millions of users. Multi-year development of the Android app.
Berliner Stadtreinigung
Official app of Berlin's sanitation service. Waste calendar, neighborhood map, and service requests for the capital.
AOK
Digital health insurance app used by millions. Claims, certificates, and e-prescriptions right on your phone.
Fortytools Field Service App
5 years in production. Comprehensive field service platform: scheduling, time tracking, digital documentation. Offline-capable with automatic sync.
Notebooksbilliger
E-commerce app for Notebooksbilliger.de with millions of items. Personalized offers, fast checkout, and order tracking.
Bayern App
Official app of the Free State of Bavaria with over 2,000 government services. Native Android app for millions of citizens.
What our clients and partners say
Working with Sebastian Engel and his team was a real game-changer for us. Through targeted automation of our processes and the intelligent use of AI, we've been able to save several hours per week.
What's particularly impressive is that we haven't just become more efficient. We've simultaneously raised the quality of our consulting work. It's exactly this combination of time savings and quality improvement that makes the difference.
A clear recommendation for anyone looking to future-proof their business.
Sebastian is a very structured and thorough developer. He is highly experienced and not only excelled in his tasks but could also offer valuable strategic advice.
When it comes to automation, I deliberately pick partners who think along with us rather than just ticking off tasks. The Antigua team took a close look at how we actually work, then set up a lead-generation automation that brings us noticeably more qualified inquiries than before, plus internal processes that genuinely give me time back. Realistically, I count on at least one day a week that I can put back into creative work.
As a family business juggling check-ins, inquiries, and everyday work, there's little time left for the routine tasks in the background. Sebastian and Esra set up an AI-assisted solution for me that prepares response drafts in German and English and handles review-request reminders, all behind the scenes. I save several hours per week and stay personally close to my guests.
In the room where it happens
We don't just follow the tech and AI ecosystem, we actively help shape it. From Google I/O to FlutterCon: we speak, organize, and contribute.
Google Gemini API Sprints
Building AI-powered prototypes with Gemini during Google's invite-only sprint program for startups and developers.
Google Cloud Builders Day
Esra took the Google stage to present Flutter's role in the cloud-native ecosystem, alongside Google's developer relations team.
Google I/O 2025
On-site for Flutter × AI announcements firsthand. Material 3 Expressive, Gemini integration, and insights from sessions with the Flutter team.
From the team
Talks, articles, and learnings from Google I/O, Flutter conferences, and our daily practice.

Memories & Updates: Flutter × AI from Google I/O Connect Berlin 2025
A personal recap of Flutter and AI highlights from Google I/O Connect Berlin.

Flutter & AI: What Really Landed at Google I/O 2025
A breakdown of the most impactful Flutter and AI announcements for developers.

Material 3 Expressive: Rethinking Emotion, Accessibility & Modern UX
How Material 3 Expressive changes the way we think about UI design in Flutter.
Know in 30 minutes if we're a fit
Not a sales call. We listen to you. You walk us through your project, whether team augmentation, full project ownership, or AI automation. We discuss what we can realistically achieve together.
Google Developer Expert














