Mobile
- Flutter
- Flutter Packages
- Swift
- Kotlin
- Pigeon
- Ionic
- React Native
Marco Winkler
ENDE
About
Senior Flutter developer based in Konstanz, building reliable production apps.
Based in Konstanz, Germany, I build robust mobile systems with Flutter while integrating deeply with native Android and iOS layers.
My focus is scalable architecture, clean engineering practices, and delivering reliable production apps.
I focus on architecture, performance, maintainability, and engineering quality across the full delivery lifecycle.
Skills / Tech Stack
Web / Frontend
- Flutter Web
- Angular
- React
- TypeScript
- HTML/CSS
Architecture
- Clean Architecture
- Reactive State Management
- Scalable Mobile Systems
- Performance Optimization
- Testing Strategies
- Code Quality
Backend / API
- GraphQL
- REST
- Firebase
- Google Cloud
DevOps
- CI/CD
- TestFlight
- GitHub Actions
- Gitlab
- App Store Connect
- Google Play Store
Other
- Docker
- Linux
- MacOS
- Windows
- Self Hosting
- AI
- Codex
- Claude
Career
Professional Experience
09/2024 - Present
Dynamic Element
Senior Flutter Developer / Technical Lead
Leading mobile and frontend engineering for a product authentication platform built on macro imaging and digital fingerprinting.
- Architecting apps for product registration and verification workflows
- Riverpod state management and clean architecture
- Native camera integrations with Kotlin and Swift
- Flutter/native bridges via Pigeon
- CI/CD pipelines for TestFlight and Play Store
- Mentoring engineers
11/2021 - 08/2024
Formigas GmbH
Frontend Development / Technical Lead
Owned the Flutter frontend for homodea meditation products.
- Led architecture for iOS and Android
- Implemented GraphQL and REST integrations
- Built CI/CD release pipelines
- Mentored developers
2021
Business Meets Technology AG
Bachelor Thesis
Researched and developed engineering-focused product solutions.
2019 - 2021
Business Meets Technology AG
Working Student, Mobile and Web Development
Contributed to production features across web and mobile stacks.
2018
Business Meets Technology AG
Internship
Built foundational software components and automation tools.
Education
08/2020 - 07/2021
HTWG Konstanz
M.Sc. Software Engineering (not completed), Grade: 1.3
Graduate studies focused on software engineering and scalable system design.
03/2017 - 07/2020
HTWG Konstanz
B.Sc. Business Information Systems, Grade: 1.8
Undergraduate studies combining software engineering with business information systems.
Projects
Project for public use to fight anxiety disease, helping people track their exposure progress when exposing themselves to anxiety.
Flutter Web / Firebase
Focused timer app with fast interaction loops for daily mobility routines.
Flutter Web
Web game made out of Flutter with a highscore backend in Firestore.
Flutter Web Game
Language learning app focused on repetition, memorization, and progress tracking, made since my wife is from Taiwan.
Flutter Web
Self Hosted Homelab Platform
Personal infrastructure stack for services, observability, and secure remote access.
Linux / Docker / VPN
A slightly clunky and unfinished game prototype built because I wanted to play around with Flutter's game engine and have some fun with it.
Flutter + Flame
3D Printing Projects
Designed and prototyped practical parts and hobby builds from CAD to print, including 3D modeling my wife's engagement ring for later smelting.
CAD + Bambu Lab
Personal Interests / Side Projects
Self hosting servers
Docker homelab
Game development
3D printing
Language learning (Chinese)
Contact
Want to talk? Let's meet up in Konstanz with a coffee or tea, or just connect online in any way.
Location
Konstanz, Germany