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
Similar Jobs
Information Technology
As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.
Top Skills:
Ai ToolingGoNode.jsPerlRag Pipelines
Artificial Intelligence • Consumer Web • Digital Media • Information Technology • Social Impact • Software
Lead the design for a critical product area, collaborating with teams to craft effective user experiences while leveraging AI tools for prototyping and testing. Influence product strategy and uphold design standards while mentoring junior designers.
Top Skills:
Ai-Assisted Prototyping ToolsCode-Generation ToolsFigma
Artificial Intelligence • Consumer Web • Digital Media • Information Technology • Social Impact • Software
As the Lead Product Designer for Discover, you'll design AI-driven experiences for a two-sided marketplace while mentoring the design team and owning the product design direction.
Top Skills:
Ai-Assisted Prototyping Tools (CursorClaude CodeFigmaLovable)V0
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute
