Må ha:DockerCloudBackendCI/CDFinTechSecuritySeniorJunior
Bør ha:TypeScriptJavaScriptRustNode.js
We are partnering with an early-stage infrastructure company building a non-custodial Web3 payment service that enables developers to monetise APIs using blockchain-based settlement.The system focuses on security, reliability, and clean developer experience, and is being built by a small, senior engineering team in Taiwan.
As a Junior Software Engineer, you will support the development of backend services for payment verification and settlement. You will work alongside senior engineers to implement APIs, integrate blockchain components, and learn best practices in secure system design and production operations.
Responsibilities
Implement backend API endpoints under guidance from senior engineers
Assist with request validation, signature verification, and replay protection logic
Integrate blockchain RPC calls and support transaction status tracking
Write and maintain unit and integration tests
Help improve system observability, logging, and monitoring
Contribute to developer documentation and example integrations
Participate in code reviews and on-call learning rotations
Qualifications
1–3 years of software engineering experience or strong internship/project background
Familiarity with TypeScript, JavaScript, or Node.js (Rust exposure is a plus)
Basic understanding of REST APIs and backend system design
Interest in blockchain, Web3, or cryptography-based systems
Ability to learn quickly and work in a fast-moving, startup environment
Clear communication skills and willingness to collaborate closely with the team
Exposure to Ethereum, Solana, or smart-contract interactions
Understanding of basic cryptographic concepts (hashing, signatures)
Experience with Docker, cloud platforms, or CI/CD pipelines