Senior Go Backend Developer (f/m/d)

HamburgFull-timesenior

EngineeringBackend DeveloperSoftware Engineering

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Overview

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dockergokafkamysqlreactterraformtypescriptadtechcode-reviewmicroservices

adjoe 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 world`wide 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 Dashboard Team (part of the Advertising Solutions team)

The Advertising Solutions department at adjoe develops, 100% in-house technology that helps mobile publishers acquire the right users by managing and analyzing ads for over 200 million daily users. They build modern interfaces and dashboards using advanced databases like Druid to provide our advertisers and account managers with valuable, data-driven insights.

As part of the Advertising Solutions team, the Advertising Dashboard team is responsible for development of User & API interfaces that we provide for our internal business team and external advertisers to create, launch, analyze and optimize advertising campaigns.

Contribute to the development of our backend written +99% in Go and maintain our microservice architecture used to communicate with our frontend (based on TypeScript React). To do this, you’ll use event buses like Kafka and SQS/SNS 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 columnar databases such as Druid – but also with MySQL, where you’ll optimize queries and the way we query data to deliver few-millisecond response times

Support partners by providing them with raw or aggregated data based on their business needs – we believe in data transparency and well-documented open APIs

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

You have worked in software development for 5+ years.

You have gained profound experience with building web applications in Go for at least 3 years.

You know how to profile a go application and figure out bottlenecks and have used this already in your work to optimize the code of the application

You have worked on a large go application with a considerable amount of traffic (>100e6 requests per day)

You are open to relocating to Hamburg, Germany

Plus: You have experience working with infrastructure as code (Terraform), Docker, and serverless infrastructure

Plus: You have experience with Columnar database

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 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.