Senior Data Engineer

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:
We’re looking for a Senior Data Engineer to design and operate a scalable data infrastructure powering a high-throughput, production-grade platform.

You will own data systems that support analytics, operational workloads, and ML-driven capabilities across a multi-tenant environment. This is a hands-on senior role with architectural responsibility and end-to-end ownership under strict reliability, performance, and SLA requirements.

You will influence core data architecture decisions and help evolve the platform to support growing scale and complexity.

What you’ll drive:
Core Responsibilities
— Design and operate batch and streaming data pipelines.
— Architect and evolve data storage layers (lake, analytical, operational).
— Develop scalable data models for analytics, ML, and operational systems.
— Ensure data quality, consistency, and observability across pipelines.

Platform & Reliability
— Implement real-time processing using event-driven architectures.
— Build ingestion and transformation workflows (ETL/ELT).
— Own backfills, reprocessing strategies, and data migrations.
— Implement CI/CD, monitoring, and SLA-driven operational practices.

Collaboration
— Partner with engineers, analysts, and data scientists to design reliable and scalable data solutions.
— Contribute to data platform standards and best practices.

Technical Environment
— Core: Python, SQL
— Streaming: Kafka
— Storage: PostgreSQL, Redis (ElastiCache), S3
— Analytics: AWS Athena, Starrocks
— Vector: PostgreSQL + pgvector
— Infrastructure: AWS, batch orchestration

What makes you a GR8 Fit:
Must-have
— 5+ years of experience building and operating production-grade data systems under SLA constraints.
— Strong proficiency in SQL and Python.
— Hands-on experience with streaming systems (Kafka or similar).
— Experience with batch processing and workflow orchestration.
— Production experience with relational databases (PostgreSQL or similar), including performance tuning, indexing, and partitioning.
— Experience designing high-throughput and low-latency systems.
— Solid understanding of point-in-time correctness and reproducible data pipelines.
— Experience with caching systems (Redis or similar).
— Cloud experience (AWS preferred).
— Experience with analytical engines (Athena, StarRocks, ClickHouse, or similar).
— Experience with distributed processing frameworks (Spark, Flink, Beam, or similar).
— Experience implementing data quality frameworks and CI/CD for data pipelines.
— Familiarity with vector databases or columnar storage systems.

Nice-to-have
— Experience supporting ML workloads (e.g., feature pipelines or feature storage patterns).
— Familiarity with training-serving consistency concepts.
— Experience building shared data platform components.
— Experience building lightweight data-serving APIs (e.g., FastAPI).
— Experience working with containerized environments (e.g., Docker).

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.