Senior Node.js developer

✅ Required Qualifications

Must Have:

• 5+ years of professional experience with Node.js in production environments

• Strong TypeScript expertise - not just JavaScript with types

• Experience building and maintaining critical systems with high availability requirements

• Deep understanding of RESTful API design and best practices

• Experience with microservices architecture and distributed systems

• Proficiency with SQL databases (PostgreSQL preferred)

• Strong knowledge of async programming patterns, promises, error handling

• Solid understanding of security best practices in financial/sensitive data contexts

• Ability to work independently and make technical decisions

• Excellent problem-solving skills and debugging capabilities

  
  

  🌟 Strongly Preferred (Nice to Have)

  • Temporal experience or familiarity with workflow orchestration engines (Camunda, Zeebe, MassTransit)

  • Financial/FinTech domain knowledge - payments, transactions, settlements

  • Cryptocurrency/blockchain experience - particularly custody solutions, exchange integrations

  • Experience with NestJS framework specifically

  • Knowledge of KYC/AML processes and compliance requirements

  • Experience with crypto libraries in Node.js ecosystem

  • Understanding of liquidity management and market operations

  • Previous work on systems with strict SLA requirements (99.9%+)

  • Experience with long-running processes and transaction orchestration

  • Familiarity with Auth0 or similar identity providers

  • Understanding of circuit breaker patterns and failure handling

  • Experience with API Gateway patterns

    
    

💼 Responsibilities

Development:

• Design and implement modular system components

• Build robust REST APIs with proper versioning and backward compatibility

• Implement Temporal workflows for complex, long-running business processes

• Create integrations with external providers (exchanges, custody, KYC services)

• Develop admin interfaces and operational tools for CFO and Operations teams

• Write comprehensive tests

• Implement monitoring and observability features

Quality & Best Practices:

• Conduct and participate in rigorous code reviews

• Maintain TypeScript strict mode and linting standards

• Follow security best practices for financial systems

• Implement automated API compatibility checks

Collaboration:

• Participate in architectural discussions and technical decision-making

• Collaborate with product teams

• Contribute to knowledge sharing and team development

Operations:

• Debug and resolve production incidents efficiently

• Optimize system performance and reliability

• Support deployment and release processes

  
  

  🎁 What We Offer

  Project Opportunity:

  • Greenfield project - shape the architecture from day one

  • Strategic importance - top priority for 2025/2026

  • Modern tech stack - latest tools and frameworks

  • Autonomy - significant technical decision-making authority

  • Learning opportunity - work with Temporal, financial systems, blockchain integrations

  • External expertise - access to specialized consultants

  Team & Culture:

  • Quality-focused - rigorous standards, no compromises

  • Iterative approach - start with MVP, learn and improve

  • Knowledge sharing - workshops, code reviews, documentation

  Professional Development:

  • Work on critical financial infrastructure

  • Gain expertise in workflow orchestration (Temporal)

  • Learn about crypto/blockchain integrations

  • Experience with high-availability systems

  • Exposure to financial regulations and compliance