Middle L2 Technical Support Specialist

GR8_TECH; Polska; Hybrid; PLN 120.000 - 180.000; Vollzeit

Benefits dieser Stelle

Remote-first

Tech stipend

Coworking support

Parental leave

Vacation days

Team events

Learning culture

Zusammenfassung

GR8_TECH is seeking a skilled L2 technical support engineer to protect platform reliability and diagnose complex B2B incidents in a high-load iGaming environment.

You will own end-to-end investigations, trace distributed calls, validate APIs, and coordinate with L3 teams to deliver reproducible bug reports. Remote-first role with strong emphasis on automation and process improvement.

Qualifikationen

• 3+ years in L2 technical support within the iGaming sector, handling high-load transactional architectures.
• Advanced log analysis and distributed tracing skills in Kibana/OpenSearch.
• Hands-on API debugging with Postman or cURL; strong HTTP, JSON, and webhook understanding.
• Read-only SQL querying across PostgreSQL, MySQL, Athena for auditing and state reconciliation.
• Observability experience with Grafana to interpret anomalies and latency.
• Proficiency with Jira/JSM in multi-tier support pipelines (L1–L3).
• English (B2+) with clear technical writing for bug reports.

Aufgaben

• Own end-to-end incident investigations for non-routine B2B operational tickets.
• Trace distributed calls across microservices to isolate failures.
• Validate APIs, payloads, tokens, and webhooks; inspect databases and logs.
• Filter escalations to ensure only reproducible bugs reach L3/Development.

Kenntnisse

L2 technical support

Log analysis

Kibana/OpenSearch tracing

API debugging (Postman/cURL)

SQL querying (MySQL/PostgreSQL/Athena)

Grafana monitoring

Jira/JSM

English (B2+)

Distributed tracing

Tools

Kibana

OpenSearch

Postman

cURL

Grafana

Jira

Jira Service Management

MySQL

PostgreSQL

Jobbeschreibung

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 payment, game, or sports feed providers.

Engineering Alignment & Quality Escalations

• Filter escalated issues thoroughly to ensure only verified, reproducible platform bugs reach L3 and Development teams.

• Ship reproduction-ready bug tickets in Jira complete with isolated payload examples, stack traces, database snapshots, and measurable blast-radius assessments.

• Partner with QA and L3 engineers during critical defect triage to validate patches and verify staging/production fixes.

Operational Knowledge & Team Scaling

• Build structured diagnostic runbooks, troubleshooting workflows, and decision trees for newly identified incident patterns.

• Mentor L1 support specialists and Junior L2 colleagues through shadow sessions, log analysis training, and query optimization guidance.

• Optimize support operational efficiency by identifying recurring incidents and advocating for systemic product fixes or automated alerts.

What makes you a GR8 fit:

Must-Have

• 3+ years in L2 technical support, systems analysis, or application operations within the iGaming sector, supporting high-load transactional architectures

• Advanced log analysis and distributed tracing skills in Kibana or OpenSearch, including querying stack traces and tracking requests across distributed microservices.

• Hands-on API debugging proficiency with Postman or cURL, deep understanding of HTTP status codes, JSON payload schema validation, and webhook/callback mechanics.

• Solid read-only SQL querying capability (PostgreSQL, MySQL, Athena) to navigate relational schemas, extract audit logs, and reconcile transactional states.

• Proven observability experience with monitoring stacks (e.g., Grafana) to interpret error rate anomalies, throughput shifts, and latency degradations.

• Proficiency in Jira & Jira Service Management (JSM) within multi-tier support pipelines (L1 → L2 → L3) and established SDLC workflows.

• B2 English proficiency or higher, with clear written technical communication that translates complex logs into structured bug reports.

Nice-to-Have

• Working knowledge of event-driven message brokers (Kafka, RabbitMQ) and distributed architecture design patterns.

• Basic scripting literacy (Bash, Python) for log parsing or automating routine diagnostic tasks.

• Fluency in Ukrainian or Russian.

Why you’ll love working here:

Benefits Cafeteria — annual budget you allocate to:

• Sports Medical Mental health Home office Languages.

Work-life & support

• Paid maternity/paternity leave + monthly childcare allowance.

• 20+ vacation days, unlimited sick leave, emergency time off.

• Remote-first + tech support + coworking compensation.

• Team events (online/offline/offsite).

• Learning culture with internal courses + growth programs.

Our culture & core values:

GR8_TECH culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back.

FUELLED BY TRUST: we’re open, honest, and have each other’s backs.

OWN YOUR GAME: we take initiative and own what we do.

ACCELER8: we move fast, focus smart, and keep it simple.

CHALLENGE ACCEPTED: we grow through challenges and stay curious.

BULLETPROOF: we’re resilient, ready, and always have a plan.