Senior Software Engineer, Backend
Full Time
full time
$186,065 - $218,900/year
8 Oct 2025
About the job
• Defining the x402 protocol standard for the internet-native payment protocol
• Building and maintaining x402 related products such as the x402 SDK, Payment MCP, Payment Facilitators, and onchain payment protocols.
• Collaborating with open-source contributors to evolve the standard through GitHub discussions, issues, and PR reviews.
Requirements
- 6+ years of experience in software development with a strong focus on backend development working closely with frontend engineers; crypto experience is a plus
- Strong experience in building scalable and secure software and SDKs
- Proficiency with Golang, Typescript, and Python.
- Knowledge of Web3 technologies, stablecoins, smart contracts, and wallets.
🔍 ATS Optimization Keywords
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Hard Skills
- Golang
- Typescript
- Python
- backend development
- building scalable software
- building secure software
- SDK development
- Web3 technologies
- smart contracts
- stablecoins
