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Backend Developer (Node.js)

1 hour, 7 minutes ago
Slovakia, Germany, Poland, Ukraine, Cyprus
Full-time
Mid Level
Backend Engineer
Software Development
Argo CD AWS CI/CD Docker Git GitOps Grafana HTTP Kafka Kubernetes Microservices Node.js PostgreSQL RabbitMQ Redis REST API SOAP System Design TypeScript XML
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VIONICA LIMITED

VIONICA LIMITED presents itself as a specialized IT company providing custom software development, web page design, system integration, IT consulting, software maintenance/support, and other technical solutions tailored to business needs.

IT services
Founded 2025
View All Jobs 5

Description

  • Design, build, and maintain wallet, transaction, game launch, and reporting integrations with casino operators and partner platforms.
  • Own integration lifecycles from contract design through production monitoring.
  • Build resilient integration layers with retries, idempotency, timeouts, error mapping, and graceful degradation.
  • Develop core backend services, APIs, messaging flows, data models, and shared modules.
  • Implement slot game mechanics and mathematics on the game logic platform.
  • Define and improve contract, mock, end-to-end, stress, and load testing practices.
  • Collaborate with Game Logic, Product, and DevOps teams to maintain stable integration contracts.
  • Participate in code reviews, technical decisions, and backend architecture discussions.

Requirements

  • 3–5+ years of backend development experience with Node.js and TypeScript, including ownership of non-trivial systems.
  • Experience designing and maintaining REST/HTTP, XML/SOAP, RPC-style, or webhook-based integrations.
  • Strong understanding of modular, service-oriented backend architecture.
  • Practical experience with RabbitMQ or Kafka and event-driven, queue-based systems.
  • Strong knowledge of contract testing, mocking, end-to-end testing, and stress testing.
  • Experience with PostgreSQL, Redis, CI/CD, Git, and observability tools such as Grafana, Loki, and Tempo.
  • Experience with AWS, Docker, and Kubernetes for containerized deployments.
  • Experience in iGaming, gambling platforms, or RNG/game provider integrations is preferred.
  • Familiarity with ArgoCD and GitOps workflows is preferred.

Benefits

  • 21 vacation days plus 2 additional annual days off.
  • 12 paid sick days.
  • Fully remote work from anywhere.
  • Flexible schedule with start times between 08:00 and 11:00 CET.
  • Health insurance and gym/fitness budget.
  • Required work equipment provided.
  • Minimal meetings and an async-friendly workflow.
  • Business trips and team meetups several times per year.

Interested in this position?

Apply directly on the company website

Apply Now

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