Start your mobile project immediately with our Flutter team

Do not wait months for recruitment. Experienced Flutter specialists ready to start right away. Flexible cooperation tailored to your needs.

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Project kickoff
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Years of mobile experience
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Meet the expert

Krzysztof Wizner

Krzysztof Wizner LinkedIn

I am an expert in mobile app architecture, fast product development, and business process optimization.

For the last 10 years I have been building solutions for startups and large companies, combining technological and business perspectives. My experience includes work at ING Bank Slaski and Miquido, one of the top software houses in Poland.

I also run my own startups, which helps me understand every stage of product building, from concept and development to fundraising and user growth.

I use artificial intelligence in my daily work to speed up development and propose solutions that give clients a real market advantage.

Flutter Expert 10+ years in mobile AI Integration ING Bank Śląski Firebase Pro 10+ MVPs

Why do software houses choose us?

Instead of months of recruitment - a ready team in 24h

Long recruitment
PROBLEM

Long recruitment kills projects

Hiring a Flutter developer takes 2-3 months. Hundreds of CVs, dozens of interviews, technical tests. The client waits, competitors move ahead.

  • ❌ 2-3 months to find a developer
  • ❌ The client drops the project
  • ❌ Competition gets ahead in the market
WE SOLVE IT
Fast start
SOLUTION

Start in 24 hours

Our team is ready right away. We sign the agreement today, start coding tomorrow. No recruitment, no waiting.

  • ✅ Team ready in 24h
  • ✅ Verified developers
  • ✅ Immediate project start
High costs
PROBLEM

High fixed costs

A full-time hire means 20-30k PLN per month plus employer costs. Even when there is no project, you still pay. Vacations, sick leave, downtime.

  • ❌ 25-35k PLN monthly including employer costs
  • ❌ You pay even without projects
  • ❌ Vacations, sick leave, downtime
WE OPTIMIZE IT
Flexible payments
SOLUTION

Pay only for work delivered

Flexible cooperation model. Time and Materials, fixed price, or a dedicated team. Scale up and down according to your needs.

  • ✅ Pay only for hours worked
  • ✅ No fixed costs or downtime
  • ✅ Team scaling within a week
Skill gaps
PROBLEM

Lack of experienced Flutter developers

Flutter is a relatively new technology so senior engineers are hard to find. Juniors need mentoring, and you do not have time for training.

  • ❌ Very few senior Flutter developers on the market
  • ❌ Juniors require mentoring
  • ❌ Long onboarding time
WE DELIVER
Complete team
SOLUTION

Experienced Flutter experts

Experienced engineers verified by an expert and continuously improving their skills inside our organization.

  • ✅ Experienced Flutter developers from day one
  • ✅ Experience with large-scale projects
  • ✅ One agreement, one point of contact

Our technologies

📱
Flutter
🎯
Dart
🔥
Firebase
☁️
Google Cloud
🔄
CI/CD

Flexible cooperation models

Team Augmentation

Our developers join your team. They work within your processes and use your tools.

  • ✅ From 1 to 5 developers
  • ✅ Full team integration
  • ✅ Daily standups
  • ✅ Flexible working hours

Dedicated Flutter Team

A dedicated Flutter team working exclusively on your mobile project.

  • ✅ 2-4 Flutter developers
  • ✅ 100% dedicated to the project
  • ✅ Daily standups and reports
  • ✅ Agile methodologies

Fixed Price Project

Clearly defined scope and fixed price. Ideal for smaller projects and MVPs.

  • ✅ Fixed price
  • ✅ Defined deadline
  • ✅ Quality guarantee
  • ✅ Post-launch support

Delivered projects

Let's Dance App

💃 Let's Dance

A marketplace for dance schools that brings the entire dance community together in one app. Users use the mobile app, while schools manage courses and participants in a web panel.

Dynamic links School admin panel Push notifications Cloud Functions
MindSync App

🧠 MindSync

An AI-powered assistant enabling voice and text chat, connecting users with AI (ChatGPT). Built for people looking for intelligent support in everyday tasks.

Social sign-in ChatGPT integration Real-time voice chat Subscriptions
Lokalne Atrakcje App

🗺️ Lokalne Atrakcje

An app that gathers attractions from your area in one place. It makes planning a weekend trip with your family easy, without long searching.

Subscriptions User chat Google Maps
English Series App

🎬 English Series

An English learning app focused on the most difficult words and colloquialisms from the TV series you watch. Before each episode, you can learn vocabulary to fully understand the story and dialogue.

Push notifications Stripe payments Web onboarding

Why Hummlab?

Fast start

A team ready in 24h. You do not wait for recruitment.

Proven experts

Senior developers with documented experience.

Flexibility

Scale your team up and down based on project needs.

Transparency

Daily reports, full progress visibility, Jira and Slack integration.

Quality guarantee

Code review, tests, CI/CD. We care about high standards.

What collaborators say

"I worked with Krzysiek on the ING Business Mobile app. He was responsible for new features and always approached work with an open mind and strong commitment. I highly recommend him as a developer."

Jakub Biliński

Jakub Biliński

Chapter Lead, ING Bank Śląski

"I worked with Krzysztof on the same project for a year. He started without Flutter experience but learned quickly. From the beginning he took on the hardest tasks and always used best practices. A great developer and teammate."

Piotr Stanisławski

Piotr Stanisławski

IT Area Lead, ING Bank Śląski

"Although we worked in different departments, I always observed his exceptional skills as a Flutter developer. Krzysztof delivered outstanding results every day. He is not only a talented developer, but also a great collaborator."

Bartek Kuźma

Bartek Kuźma

Owner, SoWhy

Let's start working together today

Fill out the form and we will contact you within 2 hours with a proposed team setup.

⚡ Urgent projects: +48 518 990 713 | 📧 itmesh.wizner@gmail.com

Contact us