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Ströer

Outdoor advertising network and digital media

Senior Backend Engineer - Go

Backend EngineeringConfirmed live in the last 24 hours
Full-timeHamburg, GermanyNo salary listedIn-person

About the Job

Requirements

  • Several years of professional backend development experience, with Go as the main language.
  • Solid experience with SQL and relational databases, primarily MySQL, including query optimization.
  • Hands-on experience with several parts of the data stack: MongoDB, ClickHouse, Kafka, and Redis.
  • Experience building and maintaining CI/CD pipelines, including automated testing and deployments.
  • Experience with Linux and running services in production, including monitoring, debugging, and performance tuning.
  • A strong grasp of concurrency, distributed systems, and designing for scale.
  • A solid understanding of application security, including common vulnerabilities, authentication and authorization, and secure handling of secrets and personal data.
  • Good knowledge of English and/or German.

Responsibilities

  • Design, build, and run backend services in Go from concept through production and beyond.
  • Shape the architecture of content platforms and the ad tech stack, focusing on performance, reliability, security, and simplicity.
  • Work on high-traffic systems and large data volumes, including real-time event streams and analytical reporting over billions of records.
  • Build services that are secure by default, including authentication, access control, user data protection, and compliance with privacy requirements.
  • Move remaining legacy services to Go and help keep the codebase lean.
  • Take ownership of key technical topics and drive decisions together with the team.
  • Review code, mentor other engineers, and help set technical standards.

Desired Qualifications

  • Experience with Rust is a plus.

About the Company

Ströer

Outdoor advertising network and digital media

Ströer is a German digital multi-channel media company that combines outdoor advertising with online marketing and e-commerce. Its products run across multiple channels by using its physical advertising network (billboards and pillars) together with online assets like t-online.de to create unified campaigns. The company sets itself apart by offering an integrated, end-to-end advertising ecosystem that connects offline reach with a broad digital portfolio under one platform. Its goal is to be the leading provider of cross-channel advertising in Germany, uniting offline and online media for brands.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Cologne, Germany
Founded
1990

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