Freelance Frontend Developer – m/f/d

LEAP Digital Marketing GmbH

Frontend Developer for E-commerce websites and A/B testing scenarios at LEAP Digital Marketing GmbH. Participating in quality assurance and collaborating with analysts and designers in a diverse team.

Posted 6/9/2026full-timeRemote • 🇽🇰 KosovoMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

BootstrapJavaScriptjQuery

About the role

Key responsibilities & impact

You implement test scenarios for A/B tests for our well-known e-commerce clients (DAX-listed companies and Top 500 firms)
You develop e-commerce websites and landing pages for large and medium-sized companies
You act as an important sparring partner for analysts when conceiving test scenarios
You are an integral part of our rigorous quality assurance
You work closely with analysts and designers from the Conversion team
You are responsible for faithfully implementing design templates into cleanly structured code

Requirements

What you’ll need

You have some prior experience in frontend development
You are familiar with frontend technologies such as HTML(5), CSS(3), JavaScript and frameworks like Bootstrap and jQuery
Basic knowledge of Adobe Photoshop/XD is a plus
You have very good English skills (minimum C1)
You are willing to learn various A/B testing tools (Kameleoon, Optimizely, AB Tasty, WO)
You are motivated to succeed

Benefits

Comp & perks

Targeted, extensive and reliable mentoring by an experienced developer
360° insight and 100% involvement in the processes and development steps of a young company
Short, direct communication channels
A corporate culture that encourages co-creation
An agile and creative working environment
Steep learning curves and a transparent career plan
Flat hierarchies and short decision-making paths
A team of over 90 people from 18 nations and cultures
Bi-weekly internal Academy
100% mobile office / fully remote work option
Well-known international clients from all industries
Flexible working hours
Corporate health management
Referral bonus and birthday gift
Great team events

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

frontend developmentHTML5CSS3JavaScriptBootstrapjQueryA/B testingAdobe PhotoshopAdobe XD

Soft Skills

communicationcollaborationmotivationanalytical thinking