GR8_TECH builds B2B iGaming platforms for operators who play to lead.
We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions.
With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos.
Our ambition drives us. Our people make it real.
If you’re a challenger in spirit and a champion in action — join us.
Why This Role Exists
This role exists to protect platform reliability and partner trust by rapidly diagnosing and resolving complex, non-standard B2B platform incidents. You’ll help us maintain low MTTR (Mean Time to Resolution) and keep engineering focused on strategic roadmap items by owning unscripted, multi-system investigations, uncovering root causes, and serving as a strict quality filter between partner support and L3 engineering.
What You’ll Drive
Incident Investigation & Root-Cause Analysis




Own end-to-end investigation for non-routine B2B operational tickets involving transactional mismatches, integration drops, and configuration failures.
Trace distributed microservice calls across Kibana and OpenSearch using correlation identifiers (Trace-ID, Request-ID, Session-ID) to isolate failures within asynchronous event streams.
Inspect Grafana metrics, error spikes, and service latencies to rapidly differentiate platform-wide degradation from localized operator misconfigurations.
Unblock operator operations autonomously by identifying configuration fixes or workaround pathways without requiring day-to-day engineering intervention.
API Diagnostics & Data Verification
Validate API endpoint behavior, payload structures, authentication tokens, and webhook/postback mechanics using Postman and cURL.
Query relational and distributed analytical databases (MySQL, PostgreSQL, Athena) to inspect real-time player states, balance ledgers, and event audit histories.
Reconcile state discrepancies across internal services and third-party

📌 MiddleTechnical Support Specialist (Barcelona)
🏢 GR8_TECH
📍 Barcelona