Staff Go Backend Developer (f/m/d)

About the Position

Staff Go Backend Developer (f/m/d)

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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.

Architecting the sub-millisecond decision engine that powers 200 million daily ad interactions.

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Responsibilities

• Own the architectural integrity, reliability, and long-term evolution of the distributed systems that power these decisions 200 million times every day across multiple teams.
• Define service boundaries, concurrency models, and runtime optimizations for our +99% Go microservice architecture.
• Architect and standardize asynchronous microservice communication using event backbones like Kafka, SQS/SNS, and Kinesis.
• Standardize data patterns (sharding, replication, DR) across hundreds of terabytes in DynamoDB, MySQL, Druid, and Athena.
• Partner with our Data Science team to architect the runtime infrastructure that serves predictive models and machine learning algorithms.
• Drive alignment across squads through RFCs and Architecture Decision Records (ADRs).
• Mentor Senior engineers across an international engineering team.

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Requirements

• Production Golang Systems & Architecture Mastery: 7+ years of backend development experience with deep production Go expertise in distributed environments.
• High-Throughput Event Streaming & Architecture Patterns: Deep experience in architecting and standardizing asynchronous microservice communication.
• Large-Scale Data Architecture & Platform Optimization: Understanding of database internals, distributed storage trade-offs, and low-level web standards.
• Data Science & Algorithmic Integration at Scale: Ability to grasp complex technical topics, distributed systems trade-offs, and applied mathematics.
• Technical Leadership & Organizational Leverage: Fluent communication skills in spoken and written English.
• Plus: Cloud Resilience & Tooling: Hands-on experience with continuous profiling, chaos engineering drills, and infrastructure automation using Terraform, Kubernetes, or AWS cloud networking.

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We Offer

• Go Big. Own the technical direction and platform architecture with impact on 770M users and push adtech boundaries.
• Move Fast. Ship solutions multiple times a day, establish golden paths that unlock engineering speed, and keep momentum.
• Be Direct. Solve complex architectural bottlenecks openly and drive alignment across cross-functional teams.
• Thrive Together. Grow with and elevate a diverse, global team of engineers from over 40 different countries that learn from each other.
• Have Fun. Celebrate wins, solve hard computer science challenges, and bring your energy.

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About the Company

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.

We welcome applications from people who will contribute to the diversity of our company.

🌎 We welcome applications from talent worldwide and provide relocation support to Hamburg, Germany for those ready to join our team.