OptiPlay
via Workable
Backend Developer (Node.js)
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 1d 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 29d ago
The date the source published, not the day we noticed it (2026-08-17). Last seen at its source 1h ago.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
Ukraine, Germany, Slovakia, Cyprus, Poland
The description states no restriction of its own. This is the source's own tag.
Pay
$42k–100k/yr
Published by the source in its own salary field. Shown in the posting's own currency and period; we never convert.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
workable employer's own board first seen 17d ago · last seen 1h ago
The listing
We're looking for a Middle+/Senior Backend Developer - first and foremost a strong, well-rounded backend engineer. The role splits roughly 70/30: 70% designing and maintaining our external integrations (casino operators and partner platforms), 30% general backend/platform work and system design.
Requirements
What you'll do
- Design, build, and maintain integrations with casino operators and partner platforms (wallet/transaction APIs, game launch, and reporting contracts), owning the full lifecycle from contract design to production monitoring;
- Build resilient integration layers: retries, idempotency, timeouts, error mapping, and graceful degradation when a third party misbehaves;
- Contribute to core backend services and platform features - APIs, messaging flows, data models, shared modules;
- Take part in slot game development on our game logic platform - implementing game mechanics and mathematics alongside the core team;
- Define and improve integration testing practices: contract testing, mocking/stubs, e2e, and stress/load testing;
- Work closely with Game Logic, Product, and DevOps teams to keep integration contracts stable as the platform evolves;
- Participate in code reviews, technical decisions, and architecture discussions across the backend.
What you bring
- 3-5+ years of backend development experience with Node.js + TypeScript, including ownership of non-trivial systems;
- Proven experience designing and maintaining external integrations (REST/HTTP, XML/SOAP, RPC-style, or webhook-based);
- Solid understanding of modular, service-oriented backend architecture, ideally from enterprise or scale-up environments;
- Practical experience with message brokers (RabbitMQ or Kafka) and event-driven, queue-based design;
- Strong grasp of integration testing approaches: contract testing, mocking, e2e, and stress testing;
- Confident with PostgreSQL and Redis, CI/CD, Git, and monitoring/observability tools (Grafana, Loki, Tempo);
- Comfortable with AWS, Docker, and Kubernetes for containerized deployments.
Nice to have
- Experience in iGaming, gambling platforms, or RNG/game provider integrations;
- Familiarity with ArgoCD and GitOps workflows.
Benefits
- 21 vacation days + 2 extra day-offs annually;
- 12 paid sick days;
- Fully remote format - work from anywhere you feel productive;
- Flexible schedule: start your day anytime between 08:00-11:00 CET;
- Fixed budget for health insurance and gym/fitness;
- Provided all required work equipment;
- Zero bureaucracy and direct communication with founders and C-level;
- Minimal meetings, async-friendly workflow;
- Startup energy: fast motion, creativity, and tight-knit communication;
- Business trips and team meetups several times per year;
- Multiple salary payout options (flexible formats);
- …And many more perks unlocked after we hit break-even.