Hire Europe’s Top 3% of Freelance Mobile Developers

UPPER is a marketplace for Europes' top Freelance Mobile Developers. Top companies and start-ups work with UPPERs Mobile developers to augment their mobile development teams and achieve their business needs.

Hire Top Freelance Mobile Developers

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UPPER - Hire top freelance developers in 3 days.

Real People. Real Skills.

We seek out and select the most experienced freelance mobile-developers across Europe.

Alexandru Cojocaru - Senior Android Engineer

Alexandru Cojocaru

Senior Android Engineer

Alexandru is a professional with more than 15 years of experience in the information technology, mobile dev and services industry. For the past 7 years he focused on Android apps development. He also has solid expertise in the mobile products building flows, mainly building overall product architecture and technical solutions as well as managing development teams.

previously at

ING Bank logo



Work with Alexandru
Nick Sorge - Senior iOS Engineer

Nick Sorge

Senior iOS Engineer

Nick is a seasoned iOS developer and freelancer with over 30 complex apps submitted to the App Store. He has experience building all kinds of app (messaging and chat, video streaming, car sharing, food ordering etc) with complex mobile dev, user interfaces and fluid animations.

previously at

IBM logo



Work with Nick
Josip Bernat - Senior iOS Developer

Josip Bernat

Senior iOS Developer

Josip is an expert iOS developer with 10 years of professional experience in mobile dev field — he's been developing for iOS since iOS 4 beta but vastly prefers the current state of iOS development with Swift. Besides iOS, Josip enjoys writing back-end APIs using Node.js. Work-wise, he is detail-oriented and prefers to be deeply involved in a project with constant communication. He's worked in teams of all sizes and has also led a few.

previously at

Ströer logo



Work with Josip
Andrzej Chmielewski - Senior Mobile Engineer

Andrzej Chmielewski

Senior Mobile Engineer

Andrzej is a highly motivated Mobile Dev.Engineer, translating visual concepts into robust user experiences for the past 9 years. He started with Android in 2012 with Java and later Kotlin, the started learning iOS as well with Objective C, Swift and around 2019 switched to Flutter. Andrzej is as comfortable working with both startups and enterprise solutions and focus on directed growth, technical solutions to reduce bottlenecks and creative strategy. He is a UX-first thinker and a big proponent of clean code and clean architecture.

previously at

Tooploox logo



Work with Andrzej
Vladan Petrovic - Senior Android Engineer

Vladan Petrovic

Senior Android Engineer

Vladan is pragmatic full-stack software architect with a strong foundation in Computer Science, and a good set of engineering principles. With 13 years of professional experience, he loves solving complex and challenging problems, and building great products from scratch. As a full-stack and android developer, he has worked on projects ranging from enterprise Portal/ERP solutions, e-banking systems for Swiss banks to managing product architecture and development for global startups and clients.

previously at

Effit logo



Work with Vladan

How it works

How to Hire Freelance Mobile Developers through UPPER

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An Expert

Our domain expert clarifies the roles together with you, from stack to goals and more.

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Get Top

The expert matches our pre-vetted freelances with your role to find the ideal fit.

Our experts match you with vetted freelancers

Interview and

Meet your future team member(s) over an interview and start with a trial period.

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UPPER Talent
⏰ Speed
<10 days
~3 months
💸 Cost of Hiring/Price
€0 cost to hire / flat fee
€30K to hire each employee, high management costs
⭐ Quality of Talent
High, only experienced talent
Dependent on ability to hire
🌍 Access to Tech Talent
Wide, active sourcing included
Limited to applicant inflow and direct network
🔗 Vetting
Multi-level expert vetting for soft and technical skills
Conditional on in-house capabilities
🚀 Scalability
High, on demand
Very slow, time intensive
✅ Role fit
High, expert matching
Conditional on access
⚠️ Risk
None, trial period, no lock-ins, no penalties

by Experts


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The Go.

Managed Service.
Platform Powered.

Service Fee.

No Hidden Costs.


UPPER supports us with quick action and great collaboration. They helped us find top engineers almost on the spot – an ability that is invaluable for us as a company in hyper- growth. UPPER is definitely the partner we are counting on.

Andrea Franke - Director of Engineering / Product Operations at Gorillas

Andrea Franke
Director of Engineering / Product Operations

Frequently Asked Questions

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Europe’s top product & tech professionals