Senior / Lead Backend Developer (Node.js)

GoMining

1d•Remote

About The Position

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.

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 Haves

Experience in fintech , crypto or payment systems
Experience building payment gateways or billing systems
Leadership or mentoring experience

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