Duelbits · 3 hours ago
Senior Software Developer - Backend (UTC -1 to UTC +3)
United States
Full-time
Remote
Senior LevelDuelbits is a next-gen crypto iGaming platform delivering lightning-fast payments and a highly personalised player experience. They are seeking a Senior Backend Developer to take ownership of backend services, APIs, and data-driven systems, collaborating closely with various teams to design and implement scalable solutions.
Gambling & Casinos
Responsibilities
Develop a deep understanding of the Company’s backend services, system architecture, data models, and integrations
Lead the design and implementation of complex backend features, services, and APIs
Participate in architecture discussions, providing pragmatic recommendations aligned with scalability, performance, and reliability goals
Identify backend technical debt, architectural weaknesses, or operational risks and propose actionable improvements
Contribute to backend engineering patterns, service standards, and technology adoption decisions
Design, develop, test, and deploy scalable, maintainable backend solutions
Build secure, performant APIs and services supporting high-traffic user-facing applications
Collaborate with frontend developers to define clear contracts and integration approaches
Break down complex backend requirements into actionable tasks and provide accurate effort estimates
Proactively remove blockers and ensure timely delivery of assigned work
Support production systems through troubleshooting, incident resolution, and performance optimisation
Set a high bar for backend code quality, maintainability, and observability
Write and maintain unit, integration, and service-level tests
Participate in and lead code reviews, providing clear and constructive technical feedback
Ensure backend implementations meet non-functional requirements including security, data integrity, latency, and fault tolerance
Diagnose and resolve complex production issues, including performance bottlenecks and system failures
Produce and maintain technical documentation for backend services, APIs, data models, and workflows
Promote best practices around scalability, monitoring, logging, security, and resilience
Participate in technical demos, discussions, and continuous improvement initiatives
Work closely with Product Managers, Frontend Developers, QA Engineers, and Engineering leads to ensure aligned delivery
Provide visibility into backend risks, dependencies, and technical constraints
Offer informal mentorship, technical guidance, or pair-programming support to other backend or full stack developers when requested
Support onboarding of new contributors by providing backend system context and documentation
Qualification
Required
Significant experience delivering backend systems in production environments
Strong expertise in Node.js / TypeScript and modern backend frameworks (e.g. NestJS)
Proven experience designing and maintaining APIs, services, and data models
Experience working with relational and non-relational databases
Strong understanding of distributed systems, scalability, and performance trade-offs
Ability to own backend services end-to-end
Strong problem-solving skills and ability to operate autonomously
Clear English communication skills suitable for senior-level remote collaboration
Comfortable working in fast-paced, high-accountability environments
Interest in gaming, sports, or high-traffic consumer platforms
Based within Europe or within the timezone range UTC -1 to UTC +3 to ensure effective collaboration
Benefits
Competitive service fees with performance-linked rewards.
Fully remote collaboration within the Europe region.
Opportunities for accelerated growth, deeper technical exposure, and meaningful contributions.
A dynamic, youthful, and innovation-driven environment.
The freedom to build, learn, experiment, and expand your technical scope.
Company
Duelbits
Duelbits is a crypto casino and sportsbook aiming to bring users the most rewarding gambling experience.
51-200 employees
Funding
Current Stage
Growth StageLeadership Team
Oto Shalikashvili
Chief Marketing Officer
Company data provided by crunchbase