Jobtitle:

Senior Backend Engineer – Casino Team 

We are looking for a Senior Backend Engineer to support us in the development and optimization of backend integration architecture across sportsbook and casino platforms, ensuring secure, compliant, and scalable communication with external providers and mission-critical systems. 

Job Description

As a Senior Backend Engineer focused on Sportsbook and Casino Integrations, you will play a key role in designing, developing, optimizing, and maintaining robust, scalable backend systems that ensure seamless communication with external sportsbook and gaming providers. 

You will act as a subject matter expert for external system integrations, ensuring secure connectivity, reliability, performance, and compliance. Beyond hands-on development, you will provide technical guidance, mentor junior developers, contribute to architectural decisions, and help define integration standards and best practices. Your work will directly influence platform stability, revenue enablement, user experience, and strategic growth. 

Essential Job Tasks

  • Design, develop, and maintain backend services and microservices for third-party gaming integrations 

  • Architect scalable, reliable integration flows with high availability, low latency, and resilience under load 

  • Implement secure APIs and services (REST, WebSockets) and own the full integration lifecycle 

  • Act as a technical point of contact for integration partners 

  • Review third-party documentation and participate in technical alignment discussions 

  • Drive performance testing, optimization, and observability across integration services 

  • Identify architectural risks and proactively implement improvements 

  • Define and maintain integration testing strategies and support complex troubleshooting and incident resolution 

  • Collaborate with cross-functional teams, mentor developers, and contribute to architectural decisions and backend best practices 

Skills & Qualifications

  • 5+ years of hands-on experience in backend engineering, with strong expertise in designing and maintaining scalable production systems 

  • Strong expertise in Golang (primary language) 

  • additional experience with Java, Node.js, or Rust is a plus 

  • Solid background in software architecture and distributed system design

  • Strong experience with integration-focused architectures and patterns, including REST APIs, WebSockets, message queues, and event-driven systems

  • Hands-on experience with RabbitMQ, Redis, and scalable caching/session strategies 

  • Proficiency with Docker, CI/CD pipelines, and containerized deployments

  • Strong understanding of SQL-based solutions and performance optimization

  • Experience with monitoring and observability tools (Prometheus, Grafana, OpenTelemetry, etc.)

  • Deep understanding of secure communication protocols, authentication models, encryption, and data protection standards

  • Proven experience integrating complex third-party systems and external APIs

  • Background in iGaming, fintech, or other high-traffic, transactional platform environments is strongly preferred 

  • Strong ownership mindset with high accountability 

  • Analytical, structured problem-solving approach 

  • Good communication skills, able to engage both technical and non-technical stakeholders 

  • Experience in mentoring and / or coaching of developers  

  • Detail-oriented, quality-driven mindset with strong integrity and teamwork value 

Nice to Have 

  • Experience with Cloud Infrastructure 

  • Exposure to Machine Learning concepts and their practical application (e.g., fraud detection, risk scoring, player behaviour analysis). 

  • Willingness to travel and join our team events 

  • Detail-oriented, quality-driven mindset with strong integrity and teamwork values 

  • Experience in the iGaming industry is a plus  

Why Join Vyking

  • Fully remote setup with an international team and flexible working arrangements

  • Dynamic, fast-growing iGaming environment with international exposure

  • Competitive compensation package aligned with performance and experience

  • Work on mission-critical B2B platform technology

  • High-impact role supporting multiple customers and integrations

  • Work on technology used by multiple operators and partners globally

  • Strong engineering culture focused on quality, reliability, and learning