At Group-IB, we build high-load backend services that power our products in fraud protection, threat intelligence, and digital risk prevention. Our engineering teams work on complex, data-heavy systems that collect, process, and serve large volumes of data in real time to help customers prevent and investigate cyber incidents. We don't believe in siloed responsibilities — developers own their features end-to-end: from clarifying requirements and writing code with tests to deploying it, monitoring performance, and maintaining it in production. We're looking for a strong backend engineer who enjoys solving engineering challenges at scale and is ready to take full ownership of their work. Tech stack: Golang (primary language); Postgre SQL, Redis, Elasticsearch, Cassandra; Rabbit MQ, Kafka, NATS; g RPC; Kubernetes; S3-compatible object storage. Tasks to solve: You'll join one of our cross-functional backend teams working on: Designing and implementing new product features and APIs; Building integrations with third-party data sources; Increasing the share ofGolang services; Improving performance and scalability (query optimizations, sharding,



etc.); Integrating services across the Group-IB product ecosystem; Developing and maintaining internal platforms used across teams. The scope is broad — engineers are free to rotate between task types and product areas depending on interest and team needs. This role is perfect for you if: 5+ years of professional experience with Golang; other languages is a plus; Strong sense of ownership and a product mindset; Solid knowledge of SQL and experience with Postgre SQL or similar; Comfort working in Linux environments; Experience developing production-grade systems and APIs; English at upper-intermediate level or higher — we work in an international team and use English in documentation and daily communication. What else we appreciate in our team: Experience with Elasticsearch, Prometheus, Grafana, S3, or Cassandra; Experience with Redis or similar in-memory storage; Familiarity with message brokers (Rabbit MQ, Kafka, NATS); Working on high-load ordistributed systems; Observability skills (metrics, logs, alerts, traces).

📌 Senior Golang Developer (España)
🏢 Group-Ib
📍 España