Architect and develop secure, scalable backend services to process blockchain payments
Build robust APIs, services, and data pipelines that interact with multiple blockchain networks
Utilize and integrate open-source blockchain SDKs
Contribute to Halliday’s public SDKs and APIs
Implement comprehensive testing frameworks and security best practices
Collaborate with product, frontend, and design teams to deliver impactful features
Expand and improve cross-chain payment protocols

Requirements

Experience building production backend systems, APIs, or distributed services
Strong knowledge of backend languages (TypeScript/Node.js, Go, Python, Rust)
Understanding of distributed systems, including concepts like consistency and fault tolerance
Fast learner excited to dive into new technologies
Problem solver who breaks down complex problems systematically
Collaborative spirit working well with cross-functional teams

Benefits

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

TypeScriptNode.jsGoPythonRustAPIsblockchaindistributed systemstesting frameworkssecurity best practices

Soft Skills

problem solvingcollaborationfast learner