Senior Frontend Developer (f/m/d)
- Hamburg
- adjoe
- Advertising Solutions
- Full time
adjoe builds the technologies behind mobile apps growth and monetization. With our core product Playtime Arcade, we’ve become the global leader in rewarded advertising, an ad unit built on a simple premise: users earn real in-app rewards for engaging with new apps. The result is one of the most effective value exchanges in adtech, connecting advertisers and publishers with over 770 million users annually.
Providing Configurations to Orchestrate 50M+ daily events across 100+ microservices
The Dashboards team is responsible for the systems and interfaces that define our partners’ daily operations. We build the campaign management APIs, analytics engines, and high-throughput tools that allow advertisers and publishers to configure, monitor, and optimize their activity on our platform.
Managing this system isn’t just about UI workflows, it’s about maintaining the configuration layer that is responsible for the behavior of our entire ad engine. Every modification in our tooling from campaign parameters and publisher settings to promotion logic and billing cycles, triggers changes across 100+ downstream microservices in real-time. We use Go, Kafka, SQS/SNS, and MySQL to build the high-throughput backend APIs, and TypeScript and React on the frontend to translate partner configurations into actions. Our configurations drive the experience for 770 million annual users, requiring high precision across our entire ad stack.
Your Mission & Who We Are Looking For:
React and TypeScript are your daily tools. You have 4+ years in frontend development with 2+ years in React, and you know your way around hooks, Redux, and CSS-in-JS solutions like Emotion or Tailwind. You’ve worked on enterprise or analytics software where structure and maintainability matter as much as the feature itself.
Data visualization is where you shine. You’ll be building data-rich dashboards that let business teams drill into billions of daily events. You combine SQL fluency with RTK Query to create seamless data experiences — you don’t just display numbers, you make them meaningful.
You write tests, not just code. You work across the full testing pyramid — Jest for unit tests, Cypress for E2E — and treat test coverage as part of shipping, not an afterthought. You’ve worked with CI/CD pipelines using Docker and GitLab.
Code reuse is a habit. You structure applications for maintainability and share code across projects via npm modules or yarn workspaces. Junior developers on the team will look to you for best practices and code review feedback.
Curious about what’s next in frontend. You follow the ecosystem closely and bring new approaches into the codebase when they’re justified. Startup or scaleup experience is a plus.
🌎 We welcome applications from talent worldwide and provide relocation support to Hamburg, Germany for those ready to join our team.
What’s in It for You?
At adjoe, you’re not here to just close JIRA tickets, you’re helping build the infrastructure behind one of the most impactful platforms in adtech. The systems you work on will reach hundreds of millions of users and power billions of decisions every day.
Go Big. Own projects with impact on 770M users and push adtech boundaries.
Move Fast. Ship solutions multiple times a day, learn from results, and keep momentum.
Be Direct. Solve problems openly and collaborate across teams.
Thrive Together. Grow with a diverse, global team of people from over 40 different countries that learn from each other.
Have Fun. Celebrate wins, enjoy daily victories, and bring your energy.
We welcome applications from people who will contribute to the diversity of our company.
Tips & Tricks to Nail Your Interviews!
Skip cover letters
Check your equipment
Do some research
Prepare an elevator pitch
Structure your answers
Let your personality shine
Come with your questions
Don’t be afraid of rescheduling
Recruiting FAQs
We aim to make our recruiting process as fast and efficient as possible, but the duration can vary depending on the role you are applying for. Usually we are really fast, though (less than 4 weeks).
Yes, if you see multiple roles open that match your skill set, you can apply for them simultaneously. Our Talent Acquisition team will review your application and contact you about the role that best seems to match your skills.
Yes, if you see multiple roles that match your skill set, you can apply for them simultaneously. Our Talent Acquisition team will review your application and contact you about the role that best matches your skills.
Great! Please allow a few days for our team to review your application. We will contact you with the next steps as soon as possible.
We’ll never ask you for money, fees, or sensitive information (like bank details, tax forms, or credit card numbers) during the hiring process.
If anything feels off, you can always double-check by reaching out to our Talent Acquisition team at ta@applike-group.com.
Once you’ve signed your contract, our HR team may request personal details, but only from our official email: hr@applike-group.com.
No, we do provide full visa and relocation support.
We do! You can find more information about our relocation support and the succesful relocation of our colleagues here on this website.
No problem! Our visa and relocation support does also include your partner or kids. (Please be aware that legal marriage is often times a requirement to obtain a partner-visa).
If you prefer 100% remote companies, applike is not the right place for you because we strongly believe in face-to-face collaboration. However, we did implement a hybrid working model where we are in the office at least three days a week (Monday, Tuesday, and Thursday) and can work remotely the remaining two days. Additionally, you get three whole weeks per year to work fully remotely if you want.
Our hybrid working approach involves being in the office at least three days a week (Monday, Tuesday, and Thursday) and the option to work remotely the remaining two days. Flexible working hours mean that we work Monday-Friday, but do not have fixed working hours. Just make sure to adapt to the rhythm of your team.
The headquarters of the applike group and all its subsidiaries are located in Hamburg, Germany. We do have offices in the US and APAC.
Well next to the fact that you are able to see and collaborate with your colleagues face-to-face, we have a super modern office that leave no wishes open: from Drinks & Snack, areas to work away from your desk to a fully equiped gym.
Yes, you can!
Couldn’t find the perfect job offer?
Nevermind! We are always interested to get in touch with new talents.