The role involves leading the development of a cryptocurrency payment gateway, designing scalable backends and microservices, and mentoring engineers.
We are building an ecosystem that combines mining, payments, Bitcoin finance, and education and making it simple and secure for users worldwide to earn and use Bitcoin daily.
We are looking for a Senior / Lead Backend Developer who can take ownership of complex backend systems, drive architectural decisions, and build scalable fintech infrastructure.
Responsibilities- Lead development of a cryptocurrency payment gateway and related financial services
- Design and implement high-load, scalable backend architectures
- Own integration and orchestration of multiple third-party payment providers
- Drive technical decisions and architecture design across services
- Build and maintain microservices infrastructure with clear separation of concerns
- Optimize system performance under heavy load (latency, throughput, fault tolerance)
- Participate in system design, data modeling, and load calculations
- Collaborate with product, DevOps, and other teams to deliver reliable solutions
- Mentor engineers and influence engineering standards and best practices
Requirements
- Strong experience building high-load systems (must-have)
- Proven experience handling large-scale data under heavy нагрузкой
- Solid production experience with Node.js + TypeScript
- Deep understanding of TypeScript (ability to design abstractions and libraries)
- Strong system design skills (architecture, scaling, trade-offs)
- Advanced knowledge of PostgreSQL: (transactions, indexing, query optimization, replication, concurrency, data modeling)
- Hands-on experience with message brokers (Kafka, RabbitMQ, etc.)
- Experience designing microservice architectures: (service communication, authentication/authorization, fault tolerance)
- Understanding of distributed systems limitations and trade-offs
Nice to have: - Experience in fintech , crypto or payment systems
- Experience building payment gateways or billing systems
- Leadership or mentoring experience
Benefits
- Full support during onboarding + learning budget (courses, English, conferences - up to 100%)
- 28 calendar days of vacation + company holidays + personal days
- Remote-first environment with flexible schedule
- International team and product
- Corporate apartments (e.g. Cyprus) and team retreats
- Real growth: from senior engineer to architecture role
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