GR8Tech
via Greenhouse
Senior Java Developer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 16h ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 6d ago
The date the source published, not the day we noticed it (2026-09-08). Last seen at its source 2h ago.
Is it remote?
Anywhere
That is the location the employer filed this posting under. Quoted as written — we do not re-word the source's own location.
Who may apply?
Available worldwide
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay $110.6k–163.4k/yr
Middle 50% of 26 listings that do state pay — Engineering · all levels · Worldwide · USD/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
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greenhouse employer's own board first seen 6d ago · last seen 2h ago
The listing
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 design, build, and maintain backend services across the Casino platform — bonus and promotional mechanics, wallet and transaction flows, game launch and catalog, and game provider integrations — ensuring reliability, correctness, and performance under high load.
What you’ll drive:
- Design and develop Spring Boot microservices across the casino domain: bonus processing, game launch, lobby and game catalog management.
- Implement and evolve promotional mechanics end-to-end — from bonus crediting and wagering logic to expiry and settlement — with correctness guarantees on real money.
- Integrate third-party game providers, game launch, wallet callbacks (bet/win/refund), provider-side bonus features.
- Build and evolve REST APIs consumed by internal services and external providers, including request signing, authentication, and API versioning.
- Ensure correctness of real-money transaction and bonus flows — idempotency, retries, timeouts, graceful degradation of downstream calls.
- Work with Redis for caching and session state; tune service performance under production load.
- Own observability: metrics (Micrometer/Prometheus, Grafana dashboards), structured logging, alerting.
- Write and maintain unit, integration, and functional tests (JUnit 5, Testcontainers).
- Ship via GitLab CI to Kubernetes; participate in code review and incident investigation.
What makes you a GR8 fit:
Must-have
- 5+ years of experience in back end.
- Commercial experience with strong proficiency in Java (17+) and Spring Boot 3.x (Web, Security, Data, Actuator).
- Experience building business-critical domain logic (payments, bonuses, billing, or similar money-adjacent flows).
- Solid experience integrating third-party REST APIs and designing your own.
- Understanding of distributed systems basics: idempotency, consistency, timeouts, retries, caching.
- Experience with SQL and at least one NoSQL store (Redis, Cassandra, or Elasticsearch).
- Upper-intermediate or higher level of English.
Nice-to-have
- Scala experience (parts of our wallet platform run on Scala / Play / Akka).
- Experience with Kafka and event-driven architectures (some of our services use Spring Cloud Stream).
- Experience running services on Kubernetes; familiarity with GitLab CI.
- Familiarity with Prometheus and Grafana.
- iGaming / betting domain experience.
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.