Senior Fullstack Developer (all genders)

Your Mission: Shape the Future of Retail Experiences

At GK – a global leader in retail technology and part of the Fujitsu Group, specializing in checkout, store operations, and customer experience – you’re not here to maintain the status quo — you’re here to disrupt, innovate, and elevate. As a Senior Fullstack Developer you’ll be the driving force behind digital transformation for some of the world’s most iconic retailers. From top tier POS systems to mobile-first experiences and smart store logistics — you’ll make it all happen.

Location: Mobile work (Germany-wide) 

What you’ll do

• You will become part of our team, which develops software for retail chains around the world.


• But it's not just about writing code – you will design solutions, analyze requirements, optimize performance, tests, and write technical documentation. In short, you will be involved from the initial design to the final deployment.


• We build the backend in Java (primarily Spring) and the frontend most often in JavaScript or TypeScript.


• We work in smaller, independent teams, often connected to colleagues from abroad – so you can expect to communicate in English daily.

What you bring

• We would be happy if you have a university degree in a technical field, but if not, you can compensate for this with relevant experience.


• Our software is complex, so we are looking for someone who already has experience in development – ideally at least 5 years.


• A developer who is proficient in Java backend (preferably Spring) and can also handle frontend in JavaScript or TypeScript will in with us.


• Knowledge of SQL will be useful, also with tools such as Maven, Git, JUnit, or IntelliJ.


• Familiarity with REST APIs, OpenAPI/Swagger, YAML, and CI/CD tools such as Jenkins or Nexus would be a plus.


• We are looking for someone who is not afraid of responsibility, likes to come up with their own ideas, and wants to be part of a team where work makes sense.

Why Join GK?

• Mission-driven: We simplify interactions in retail – for businesses and customers alike.


• Empowered by flexibility: Remote-first, flexible hours – work where and how you thrive.


• Security with vision: Permanent contract in a future-focused, stable environment.


• Culture that connects: Open, collaborative, and people-first – with great coffee if you drop by .


• Backed by strength: With 35+ years of retail tech expertise and as part of Fujitsu, a global IT leader.


• Tech that scales: AI-powered solutions built to grow with the world’s leading retailers.


• Think global: 570,000+ installations in 65+ countries. Real impact, worldwide.