(Senior) Backend Developer (f/m/d)

Sorry, this job was removed at 02:24 p.m. (CST) on Tuesday, Feb 17, 2026
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Hamburg, DEU
Hybrid
AdTech
The Role
As a Senior Go Backend Developer you will join a team of highly committed developers, further developing our tracking platform justtrack by bringing in a lot of own ideas.

At justtrack, we build a SaaS business that provides app and game publishers an attractive toolset to handle their entire global marketing growth process. Starting from managing, analyzing, and automating marketing processes justtrack enables gathering deep mobile product insights.

As part of the applike Group (financially backed by media powerhouse Bertelsmann), justtrack has access to industry experts and funding with a long-term growth mindset.

Joining the Team, you will have the opportunity to create state of the art microservices from scratch. Moreover, you can dig into well established services that unify various external APIs and further refine according to all the small variants. Our team's mission is providing easy and efficient flows to automate and scale out marketing processes.

Key Responsibilities:

  • You bring fresh ideas to further improve our robust and reliability-first Golang backend (separated over several, globally located data programming centers)
  • Take a leading role in designing and implementing new microservices
  • Collect and unify all the minor variants of APIs and user flows out there
  • Constantly improve our existing code and system architecture
  • Work with experts from different technological backgrounds and countries, learn from your highly experienced colleagues and share your knowledge
  • Collaborate with all kinds of roles in our cross-functional teams

How the optimal candidate may look like:

  • 4-5 years experience of backend or cloud software development. Mid level: 2+ years experience
  • Expert in one backend language: Go, Java, PHP, Python, NodeJS. Mid level: 1+ year(s)
  • Willingness to learn go
  • Good understanding of software architecture, distributed systems and application design 
  • Basic understanding of IaC tools like terraform
  • Team Player, Problem-Solver, Task Owner
  • Optional: Familiarity with frontend frameworks like React, Angular, Svelte
  • Optional: Experience with AWS services like DynamoDB, ECS, Kafka and SQS

What do we have to offer?

  • Invest in Your Future: Regular feedback and our development program support your growth, helping you expand your skill set and achieve your career goals.
  • Easy Arrival to justtrack: From signing to settling in Hamburg, we’ve got you covered. Need a visa? No problem. Ready to build your new life and career at justtrack in Hamburg? We support every ambition—from learning German to a relocation bonus that helps you settle in and make Hamburg feel like home.
  • Live Your Best Life, at Work and Beyond: We work in a hybrid setup with 3 core office days, plus flexible working hours. Enjoy 30 vacation days, 3 weeks of remote work per year, and free access to an in-house gym with lots of different fitness classes and mental health support through our Employee Assistance Program (EAP).
  • Thrive Where You Work: Enjoy the Alster lake view from our central office with top-notch equipment, fun open spaces, and a large variety of snacks and drinks.
  • Join the Community! Participate in regular team and company events, including hackathons and social gatherings. We work together, and we celebrate together, too.

Our mission is to create an inspiring work environment for amazing people achieving extraordinary things.  Be part of it!

Skip writing cover letters. Tell us about your most passionate personal project, your desired salary and your earliest possible start date. We are looking forward to your application!

We welcome applications from people who will contribute to the diversity of our company.

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The Company
Hamburg
230 Employees
Year Founded: 2015

What We Do

applike group is the leading company building in the app economy. Our technologies + businesses to cover the full value chain of the mobile apps market. Our companies work independently, but benefit from each others’ technologies and knowledge. We are 4 companies (JustDice, adjoe, Sunday, justtrack) under one roof of applike group. justDice: We build exciting app-discovery products for mobile gamers. With >50 million users we are the global market leader, while still growing rapidly every day adjoe: We build new technologies and ad formats that create a competitive edge for mobile app developers. Sunday: We create and publish extremely engaging and addictive mobile games with smart and player-friendly monetisation justtrack: One-stop software to automate your whole user acquisition process. This would be inconceivable without the 3 developer teams that form the core of applike group. We are 100 percent tech company where everybody is interested in computer science. We are always giving our best to get in touch with the newest technology in order to build the most relevant products. Our mission is to build software with the capability to distribute ads to every mobile device on earth.

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