Node.js Developer (fintech)

GoMining is a global Bitcoin-powered fintech ecosystem building high-load financial products for users around the world. We are looking for an experienced Node.js Developer who will strengthen our core backend team, work with high-intensity data flows, and help scale our financial infrastructure. This role is ideal for someone with strong backend engineering experience in fintech, a deep understanding of product development, and the ability to deliver stable, secure, and scalable systems.

Responsibilities Develop and maintain backend services using Node.js with a focus on performance, reliability, and security. Implement new product features and integrate financial logic into existing services. Work with high-load systems, optimize application performance, and ensure stable service operation. Collaborate with product managers, QA engineers, and other developers to deliver end-to-end functionality. Integrate third-party APIs, PSPs, internal services, and crypto-related components. Write clean, maintainable, well-tested code following best practices and internal guidelines. Participate in architecture discussions and drive technical improvements across the backend stack. Support existing microservices, troubleshoot production issues, and contribute to automation and observability. 5+ years of commercial experience in backend development with Node.js. 2+ years of experience in fintech, digital banking, payments, or financial infrastructure. 3+ years of experience working in product companies, not agencies or purely outsourcing teams. Strong knowledge of JavaScript/TypeScript and modern Node.js ecosystem. Experience with relational and NoSQL databases (PostgreSQL, MongoDB, Redis). Understanding of distributed systems, microservice architecture, and event-driven communication. Experience with message queues (e.g., RabbitMQ, Kafka) and caching strategies. Familiarity with Docker, Kubernetes, CI/CD pipelines. Ability to work with high-load and latency-sensitive systems. Knowledge of testing frameworks (Jest, Mocha) and code quality tools. Nice to Have Experience working with blockchain APIs, wallets, or crypto products. Knowledge of financial protocols, security best practices, or AML/KYC flows. Experience with monitoring and observability tools (Grafana, Prometheus, Sentry). Understanding of system design principles for scaling financial applications. Professional growth: support for courses, conferences, and English learning (up to 100% coverage). Work-life fit: remote or hybrid format with flexible hours across international teams. Paid leave: up to 28 vacation days, 15 sick days, plus local holidays. Recognition programs: structured performance reviews and team awards. Team culture: retreats in international locations (for example, company villa in Turkey, Bali).