Hamburg | Vor Ort | Vollzeit

Senior Go Backend Developer (f/m/d)

Your Mission & Who We Are Looking For:

  • Go is your primary language at scale. You have 5+ years in software development with 3+ years building production Go services. You've worked on high-traffic systems handling 100M+ requests per day, and you know how to profile and optimize Go applications — not just identify that something is slow, but fix it.
  • Distributed systems are your default. You design and operate microservice architectures using event buses like Kafka and SQS/SNS for reliable asynchronous communication. At adjoe, you'll be collecting and aggregating billions of daily API events into Kafka and Kinesis streams, queryable from the data lake in seconds.
  • Data performance matters to you. You work with columnar databases like Druid and relational databases like MySQL, optimizing queries to deliver few-millisecond response times. You understand the difference between how data should be stored and how it should be queried at scale.
  • Partner-facing data ownership. You'll support partners by providing raw or aggregated data through well-documented open APIs, backed by TypeScript React dashboards on the frontend. You believe in data transparency and build APIs that reflect that.
  • Infrastructure fluency is a plus. Experience with Terraform, Docker, or serverless infrastructure helps when owning services end-to-end in a Kubernetes-based environment. Columnar database experience is a strong plus

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.