Senior Go Backend Developer (Catalog) (f/m/d)

Role overview

Senior Go Backend Developer (Catalog) for adjoe’s Catalog team. You’ll design and operate backend systems that power highly performant ad discovery and engagement experiences—where users decide in real time whether to engage or scroll past.

Responsibilities

• Build and maintain a +99% Go microservice architecture serving large-scale publisher interactions and supporting growth beyond hundreds of millions of monthly active users.
• Design high-throughput, asynchronous communication between microservices using event-driven patterns.
• Build event pipelines to ingest billions of daily API events and aggregate them for sub-second querying in the data lake.
• Optimize APIs and data access across large datasets (DB internals and performance tuning) to reduce response times.
• Partner with Data Science to translate and integrate machine learning algorithms for real-time ad targeting.
• Contribute to peer code reviews and technical knowledge sharing across an international backend team.
• Improve infrastructure tooling where needed (cloud/container/serverless) to keep systems reliable and scalable.

Requirements

• 5+ years of backend development experience.
• At least 3 years of Go in production distributed environments.
• Hands-on experience with asynchronous microservice communication and event buses such as Kafka, SQS/SNS, and Kinesis.
• Strong understanding of database internals and low-level web standards (HTTP, encoding, regular expressions).
• Experience optimizing queries and APIs across systems including DynamoDB, MySQL, Druid, and Athena.
• Ability to communicate fluently and precisely in English.

Nice to have

• Hands-on experience with Terraform (IaC), Docker, or serverless infrastructure.
• Comfort with complex technical topics and applied mathematics (for ML integration).