Senior Go Backend Developer (Anti-Fraud) (f/m/d)

adjoe is a leading mobile ad platform developing cutting-edge advertising and monetization solutions that take its app partners’ business to the next level. Part of the applike group ecosystem, adjoe is home to an advanced tech stack, powerful financial backing from Bertelsmann, and a highly motivated workforce to be reckoned with. 

Meet Your Team: Anti-Fraud Solutions

Industry experts report that 20 percent of global mobile ad spend can be identified as fraud. adjoe’s Anti-Fraud team has both validated this number and prevented fraudulent users from entering partners’ ad spend.

The team’s software includes two major components.

1) A distributed backend system with modern cloud infrastructure that provides different interfaces to partners.

2) A unique mobile SDK that analyzes device features to detect modifications via xposed or magisk.

With no one-size-fits-all solution, the Anti-Fraud team works with a large set of features. From detecting attempts based on data with static patterns, using proprietary solutions to detect software manipulation, marking network traffic abnormalities, and identifying when to warn or even block requests.

Join a team that is excited about the latest technologies and is highly interested in data, security, cloud computing, and mobile operating systems. Not to mention a team that celebrates many awards for leading the way in fraud prevention.

What Will You Do:

• Contribute to the development of our backend written 99% in Go and maintain our microservice architecture used to communicate with our frontend (an Android SDK and a React-based JavaScript application). To do this, you’ll use event buses like Kafka, SQS/SNS, and Kinesis in order to have reliable asynchronous microservice communication.
• Work in a community of developers with whom you’ll share knowledge and contribute to peer code reviews.
• Work with modern databases such as Dynamodb and Scylla, where you’ll optimize queries and the way we query data to deliver few-millisecond response times.
• Collaborate with our Data Science and BI team to figure out where and how cheaters could exploit our system and implement mitigations for it.
• Work on a sophisticated VPN detection that can detect even residential proxies.
• Be responsible for collecting the billions of daily API events and aggregating them in our Kafka and Kinesis streams with the goal of querying them from the data lake in a matter of seconds.
• Be part of an international English-speaking team dedicated to scaling our adtech platform beyond our hundreds of millions of monthly active users.

Who You Are:

• You have worked in software development for 4+ years.
• You have gained profound experience with building web applications in Go for at least 2 years.
• You have knowledge about databases and a basic understanding of Regular Expressions, HTTP protocol, and Encoding.
• You have very good knowledge about TCP networking and understand how routing works on the internet.
• You are open to relocating to Hamburg, Germany
• Plus: You have experience working with infrastructure as code (Terraform), Docker, and other container orchestration platforms (e.g. kubernetes or ECS).

Have You Heard of Our Perks?

• Work-Life Package: 2 remote days per week, 30 vacation days, 3 weeks per year of remote work, flexible working hours, dog-friendly kick-ass office in the center of the city.
• Relocation Package: Visa & legal support, relocation bonus, reimbursement of German Classes costs and more.
• Happy Belly Package: Monthly company lunch, tons of free snacks and drinks, free breakfast & fresh delicious pastries every Monday
• Physical & Mental Health Package: In-house gym with personal trainer, various classes like Yoga with expert teachers.
• Activity Package: Regular team and company events, hackathons.
• Education Package: Opportunities to boost your professional development with courses and trainings directly connected to your career goals 
• Wealth building: virtual stock options for all our regular employees.
• Free of charge access to our EAP (Employee Assistance Program) which is a counseling service designed to support your mental health and well-being.

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.