Senior Go Backend Developer (Demand Intergrations) (f/m/d)

Applike; Hamburg; Vor Ort; EUR 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Relocation to Hamburg

Zusammenfassung

adjoe is seeking a seasoned Go Backend Engineer to power Playtime Arcade’s scale, serving billions of events with low latency. You’ll own production Go services, profile and optimize for real traffic, and design distributed microservices using Kafka and SQS/SNS.

You’ll collaborate with Data Scientists to integrate ML models, optimize data access with Druid, MySQL, Redis and DynamoDB, and manage infrastructure with Terraform, Docker and serverless patterns.

Qualifikationen

• 5+ years in Go, built for scale and handling high traffic.
• Experience designing distributed microservices with messaging.
• Strong data access optimization and performance focus.

Aufgaben

• Own production Go services and profile/optimize under real traffic.
• Design distributed systems using Kafka and SQS/SNS for reliable async processing.
• Collaborate with Data Scientists to integrate ML into backend services.
• Own data access patterns with Druid, MySQL, Redis, DynamoDB for low latency.
• Manage infrastructure with Terraform, Docker, and serverless patterns.

Kenntnisse

Go

Production Go

Performance profiling

Kafka

SQS/SNS

Data pipelines

Druid

MySQL

Redis

DynamoDB

Terraform

Docker

Serverless

API design

Tools

Kafka

Docker

Terraform

Serverless

SQS/SNS

Redis

MySQL

Druid

DynamoDB

Go tooling

Jobbeschreibung

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.

Running the Engine Behind 200M+ Daily Ad Decisions

Behind every ad decision at adjoe is a system designed to operate at massive scale, serving more than 770 million mobile users every year. The Demand API Integrations team owns the systems that connect our platform to the global adtech ecosystem, handling over 5.5 billion API requests daily across installs, events, views, clicks, and postbacks from Mobile Measurement Partners.

We operate a dedicated A/B testing environment against live traffic to validate system behavior under real-world conditions, allowing us to evaluate advertiser integrations, benchmark partner performance, and verify attribution accuracy end-to-end before deploying globally.

We integrate TensorFlow-based ML models to predict user engagement and purchase likelihood, directly influencing real-time ad distribution. To meet our strict 100ms latency constraint, we prioritize efficient model serving, low-latency data access, and deliberate system design.

Your Mission & Who We Are Looking For:

• 5+ years in Go, built for scale. You have 3+ years building production Go services and know how to profile and optimize applications under real traffic, not just identify bottlenecks, but eliminate them. You've worked on large Go applications with considerable daily request volume.
• Distributed systems are your default context. You design and operate microservice architectures using Kafka and SQS/SNS for reliable asynchronous communication, and are responsible for collecting and aggregating billions of daily API events into Kafka streams queryable from the data lake in seconds.
• Data performance matters at every layer. You work with Druid, MySQL, Redis, and DynamoDB, optimizing queries and data access patterns to deliver few-millisecond response times. You know the tradeoffs between different storage solutions and when each one is the right tool.
• Bridge product and Data Science. You collaborate directly with Data Scientists to integrate ML algorithms that optimize ad delivery: translating complex mathematical solutions into production-ready backend services.
• Partner-facing data ownership. You support partners through well-documented open APIs, providing raw or aggregated data transparently based on their business needs.
• Infrastructure fluency is part of the job. You have hands-on experience with Terraform, Docker, and serverless infrastructure, owning services end-to-end from development to production.

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

What's in It for You?

• Go Big. Own projects with impact on 770M users and push adtech boundaries.
• Move Fast. Ship solutions multiple times a day, learn from results, and keep momentum.
• Be Direct. Solve problems openly and collaborate across teams.
• Thrive Together. Grow with a diverse, global team of people from over 40 different countries that learn from each other.
• Have Fun. Celebrate wins, enjoy daily victories, and bring your energy.

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