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JuniorFull-timeJavaScriptTypeScriptJavaRustNode.jsDockerREST APICI/CDAPI
Salary Range
$66,300 - $89,700 /year
This salary is estimated based on similar roles. The actual salary may vary.
About the Role
We are looking for a Junior Software Engineer to join an early-stage infrastructure company building a non-custodial Web3 payment service. This role involves supporting the development of backend services for payment verification and settlement, working alongside senior engineers to implement APIs and integrate blockchain components.
Key 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
Requirements
- ✓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
