Front-End Developers For Hire - Front-End Development Outsourcing

Hire front-end developers
Design and build great apps

Scale your front-end development with experts
in UX/UI, JavaScript, React.js, Ember.js

Join 230+ tech leaders who have built apps
with our full-stack outsourcing company

With development expertise gained on over 150 international software projects

our developers and teams enable CEOs, CTOs, VPs of Engineering and Product Owners in startups and SMEs to design and craft quality software solutions. In doing so, we either augment clients’ in-house teams or deliver complete turnkey projects.

Simplaex GmbH is a Berlin-based company which operates a digital data platform powered by an advanced Artificial Intelligence user classification technology.
Jan Thomas
Selleo have allowed us to quickly scale our existing teams with additional developers, often within a couple of weeks. They're a pleasure to work with and have always delivered outstanding quality!
Jan Thomas
Director of Product, Simplaex, Berlin
Revealing audiences across the programmatic value chain
Digital Marketing Platform
Revealing audiences across the programmatic value chain
The AI-powered solution allows game marketers to generate revenue from current and new players. Advertisers leverage Simplaex trusted partnerships with over 1,000 global mobile and desktop publishers. The marketers can follow consumers’ digital footprints in real-time and turn them into loyal customers.

Our Clients' applications were featured in

Hire experienced Front-End developers

Dawid Pośliński
Dawid Pośliński

CTO

Tomasz Bąk
Tomasz Bąk

Lead Developer

Szymon Kieloch
Szymon Kieloch

Lead Developer

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