Michał Król

Founder

krolmic OÜ

Nov 2022 – Present

Building Flutter apps with AI-assisted, agentic, and orchestrated development workflows — backed by 11 years in software development and 5 years delivering production-grade apps.

Freelance Flutter Developer

Aparkado

Apr 2025 – Present

Delivering new features and improving LKW.app, a leading app for truck drivers — as well as orchestrating automated workflows using Claude Code and Make.com.

Freelance Flutter Developer

blindwerk – Digitale Architekten

Apr 2025 – Sep 2025

Rebuilt the Kurvenheld app, optimizing its Flutter architecture and core features to improve performance, maintainability, and user experience.

Freelance Flutter Developer

Upwork

Mar 2025

Delivered a high-quality mobile app for iOS & Android in record time of 3 weeks into the app stores.

• Developed and deployed a Flutter app for iOS and Android
• Implemented authentication with Amplify Auth and Firebase Firestore backend
• Set up paywall and subscription management with RevenueCat
• Added push notifications (OneSignal), analytics (Wiredash), and error monitoring (Crashlytics)
• Automated app publishing with Codemagic

Freelance Flutter Developer

Aparkado

Jan 2024 – Mar 2024

• Integrated in-app purchases with RevenueCat and custom paywall
• Extended app analytics for better user insights
• Developed truck driver route planning features
• Enhanced project architecture for testing and scalability

Freelance Mobile App Developer

LUMEUS Emotional & Mental Health

Nov 2022 – Jul 2023

Built the LUMEUS app from scratch — guided audio meditation for emotional health — then maintained and expanded it post-relaunch.

• Developed Flutter app for iOS and Android with clean architecture
• Built backend cloud infrastructure
• Implemented in-app purchases with custom Adapty paywall
• Added push notifications using OneSignal

Fullstack Developer

Ambient – Wegbereiter für digitale Innovationen

Jul 2019 – Oct 2022

Worked on a diverse range of projects, building mobile and web apps while contributing to the agency's growth.

• Mobile apps development with Flutter for iOS and Android
• Web apps development with Vue, Nuxt.js, and React
• CI/CD pipelines with Docker, Kubernetes, Helm, and Terraform on AWS and Azure
• RESTful APIs and CMS backends (Strapi, Wagtail, Django)
• Agile estimation workshops, SCRUM & Kanban, mentoring

Junior Development Engineer

Utimaco

Jan 2018 – Jun 2019

Providing lawful interception and data retention systems for telecom operators and ISPs.

• Full stack web apps with Python, Django, and jQuery
• UX design — wireframes and prototypes
• APIs development in C++ and C
• CLI tools in Python, Bash, C++, and C

Trainee

Utimaco

Aug 2015 – Jan 2018

• Development in C, C++, Bash, Python, and Django
• Agile development with SCRUM
• Delivered Python training for team members

Intern

Utimaco

Apr 2014 – Jun 2014

• CLI tools in Bash and C
• Desktop apps in C++ with QtCreator
• Cryptography training