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Senior Frontend Developer (f/m/d) Job Opening In Hamburg – Now Hiring AppLike Group

Senior Frontend Developer (f/m/d)

    Germany Jobs Expertini Expertini › Germany › Jobs › Hamburg › Computer Occupations › Senior Frontend Developer (F/m/d)

Job description


is redefining the future of mobile ads.

Powered by advanced AI, first-party data and world-class engineers, we’ve perfected the offerwall experience for monetizing and scaling app publishers with solutions like Playtime and Arcade – now the fastest growing rewarded advertising channel globally – driving incremental engagement, retention, and revenue. At the same time, we’re breaking into programmatic advertising with the intelligent bidding system of adjoe Ads.

Together, this ecosystem connects app developers to over 600 million users worldwide for scalable growth.

Backed by a $100 million investment from Bertelsmann and operating from offices in Hamburg, Boston, Singapore, and Tokyo, adjoe is defining the next stages of app and ad experience – right now.

Join us.

Meet Your Team: Advertising Solutions

The Advertising Solutions team builds technologies that connect advertisers with ideal users for their apps and games.

Integrated with adjoe’s ML models, our custom APIs serve 2B requests per day at low latency.


We’ve developed advertising campaign management and complex analytics tools that provide actionable insights on 200 million daily users to both internal teams and external partners.

Our Go-based backend feeds data to a TypeScript React frontend, supporting sophisticated analysis tools built on columnar databases like Druid for sub-millisecond query response times, complemented by MySQL, Redis, DynamoDB, and Kafka.


For developers, this means working on high-performance systems that process massive datasets while maintaining an agile development approach – implementing advanced algorithms through deep learning approaches for campaign distribution and bid optimization, building intuitive dashboards, and creating APIs that power business decisions across the entire advertising ecosystem.


What You Will Do:

  • Build and maintain highly interactive data-rich web applications (TypeScript React frontend).Collaborate closely with backend developers, QA, a product designer, and the Product Lead to design and implement new features while keeping an eye on appealing user interfaces.
  • Leverage your understanding of data query languages (e.g. SQL) with RTK Query to create meaningful and seamless user experiences.
  • Work with Docker and GitLab pipelines to facilitate Continuous Integration and Continuous Delivery (CI/CD) workflows.
  • Make our data speak by creating stunning data visualizations.
  • Enable our Business teams to effortlessly drill into data.
  • Provide junior developers with mentorship in best practices.
  • Work with extensive unit testing and Cypress E2E test coverage.
  • Reuse code in other projects via npm or yarn workspaces.

    • Who You Are:

  • You have overall 4+ years’ experience in frontend development (ideally working on enterprise and/or analytics software)
  • You have 2+ years’ experience in working with React, Angular, or
  • You have gained knowledge of working in Typescript, Redux, Emotion-js, JSS, Tailwind, or a similar framework, Git, and (ideally) Docker
  • If you have worked with React, you know how to work with hooks
  • You know how to reuse code in other projects via npm modules or yarn workspaces
  • You know how to structure an application and make it easy to understand for other developers
  • You use the entire pyramid of tests and have worked with Jest and Cypress or similar tools to implement your automated tests
  • You have experience with SQL and working with different databases
  • You are interested in designing and implementing features while keeping an eye on user experience
  • You have a keen interest in new technologies and best-practice approaches in the market to continuously improve products
  • Nice to have: You have some previous experience in a startup/scaleup


    • Fuel for the Journey: Benefits to Support Your Ambitions

  • 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 adjoe: 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 adjoe in Hamburg?

    We support every ambition—from learning German to a relocation bonus that helps you make Hamburg feel like home.
  • Live Your Best Life, at Work and Beyond: We work in a hybrid setup with core office days on Monday, Tuesday, and Thursday, 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.



    • 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.

    Required Skill Profession

    Computer Occupations


    • Job Details

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