Christian Dobrovolny
DEEN
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Available for new projects

Senior Flutter developer for demanding apps.

I help companies build and evolve production Flutter apps: as a senior developer, extra technical capacity, or lead in your existing team.

Discuss your project See references
  • Remote from Ettlingen, Germany
  • German & English
  • Reply within 24 h
Christian Dobrovolny
Christian DobrovolnyLead Flutter developer · independent since 2022
14 yearsin software development, since 2012
5+ yearsFlutter for iOS and Android
4 lead rolesin production app projects
6 industriesfrom e-commerce to IoT

Experience from projects at and for

  • notebooksbilliger.de
  • MindTags
  • Fubaza
  • LITE BLOX
  • LUMEUS
  • onDispatch

Services

How I support your team

Flutter is at the centre. Everything else makes sure your app is built, shipped and run reliably.

Core service

Flutter app development

New apps and existing products for iOS and Android, from architecture to store release.

  • New builds with a clean, maintainable architecture
  • Ongoing development within your team
  • Flutter adoption with setup, CI/CD and onboarding
  • Backend and release pipeline: Firebase, Supabase, AWS, Codemagic, Shorebird

When else to bring me in

Your app is growing and the architecture hits its limits

Architecture & refactoring

Bring order to structure, state management and technical debt so features become predictable again.

An existing app needs to be taken over

App takeover

Analyse, stabilise, modernise, without putting operations at risk.

A complex feature has to work reliably

Native integrations

Bluetooth hardware, payments, NFC, offline-first and in-app purchases.

You lack senior capacity or technical leadership

Technical lead

Extra capacity in your team or technical ownership including partner alignment.

Also: Websites for local businesses.

References

Selected projects

Production apps in e-commerce, sports, accessibility, IoT, health and logistics.

notebooksbilliger.de: Screenshots aus dem Store
E-commercesince 2021

RoleLead Flutter developer

notebooksbilliger.de

Shopping app of a major German electronics retailer.

Challenge
A large production app with native interfaces, payments and several teams involved.
Contribution
Technical lead of Flutter development, coordination of external partners, alignment with the business side.
View on the App Store: notebooksbilliger.de
Sports · social mediasince 2025

RoleLead developer

Fubaza

Content studio for sports clubs.

Challenge
A graphics editor across all platforms, publishing straight to Instagram and Facebook.
Contribution
Technical lead for app and editor, backend integration, release pipeline with over-the-air updates.
View on the App Store: Fubaza
MindTags 2.0: Screenshots aus dem Store
Accessibilitysince 2024

RoleLead developer

MindTags 2.0

Navigation app for people with impairments.

Challenge
Accessible navigation that works reliably even without a connection.
Contribution
Leading development, public transport integration, redesign of the data structure for offline-first.
View on the App Store: MindTags 2.0

More projects

  • LITE BLOX R.E.M.O.T.E.Flutter developerIoT, Bluetooth batteries
  • LUMEUSLead developerMental health, AWS
  • onDispatch Fahrer-AppApp developerLogistics, offline-first
  • DCV MitgliederAppSole developerDigital membership card

About me

Christian Dobrovolny

I have been developing software since 2012 and working intensively with Flutter since 2021. With my company, Christian Dobrovolny IT-Beratung & Softwareentwicklung, I have been helping businesses build and evolve their apps since 2022.

As a lead developer I have carried technical responsibility for several production apps, including notebooksbilliger.de. I particularly enjoy projects where technical quality, good architecture and a maintainable long-term solution matter.

Remote from Ettlingen, GermanyGerman & English

Experience

  1. since 2022Self-employedIT consulting & software development
  2. since 2023Lead Flutter developernotebooksbilliger.de
  3. 2021–2023Flutter app developernotebooksbilliger.de
  4. 2018–2020Software developer, full-stackl’tur
  5. 2012–2018Developer, IT consultantOS Datensysteme, PRODYNA, POET
Full profile on LinkedIn

Tech stack

  • Flutter
  • Dart
  • Riverpod
  • BLoC
  • Firebase
  • Supabase
  • AWS
  • Codemagic
  • Shorebird
  • GitHub Actions
  • GitLab CI
  • Bluetooth LE
  • SQLite
  • Strapi

Testimonials

What clients say

Christian proved to be an excellent developer and showed a high level of quality and commitment to our project from the start. […] We can rely on Christian even when our app has urgent problems, which gives us a great deal of confidence.

Product managerLUMEUS (EmoTrain)

He thinks beyond the requirements and asks the right questions to get 10% more out of every task.

Managing directoresc Ingenieurgesellschaft für Softwareentwicklung mbH

Christian is always friendly, delivers his results on time and can explain clearly where the challenges are.

IT coordinatorMindTags Group

Excerpts from reviews on freelancermap, translated from German

Working together

How we work together

A clear process, transparent communication and a shared goal.

  1. Describe your project briefly

    Via the form, email or a call. Bullet points are fine.

  2. Intro call, 15 to 30 minutes

    We clarify goals, starting point and scope by video or phone.

  3. Assessment & quote

    You get an honest assessment with effort and schedule.

  4. Build & release

    Iteratively, with regular updates, until the app is in the store and beyond.

What you can expect

  • Straight to the person writing the code. Senior level without agency overhead.
  • Ownership instead of tickets. I think along and flag risks early.
  • Productive quickly. Your processes, your tools, your review flow.
  • Clear assessments. Honest about effort and status, even when it is uncomfortable.

Free and without obligation until you have a quote.

Contact

Do you have a Flutter app or a new project in mind?

Briefly describe what you have in mind. I usually reply within 24 hours.

Rather talk directly?A short intro call by video or phone. Free and without obligation. Request an intro call

Project enquiry

All details are treated confidentially.

Discuss your project