Job Description

Zerion is building the future of on-chain financeand were looking for a Middle Backend Engineer to help us scale that vision. You'll join our API team, working at the heart of our infrastructure to power new features, solve urgent challenges, and support developers building the next generation of Web3 apps. If you're excited by clean architecture, fast feedback loops, and the opportunity to shape how developers build on-chain, youll feel right at home here.

What you will do

• Develop and ship new features for our API.
• Triage and fix bugs quicklyespecially partner-impacting issues.
• Build and maintain backend systems powering our API.
• Collaborate with products to shape features and improve partners onboarding.
• Collaborate directly with customers to troubleshoot issues, fix problems, clarify technical questions, and drive timely resolutions.
• Continuously improve our technical docs, and internal tooling to enhance developer experience.

Who we are looking for

• 3+ years of backend engineering experience.
• Solid fundamentals: you write clean, maintainable code and understand how to debug complex systems.
• Familiarity with Blockchain systems, dApps, and smart contracts.
• Great communication and soft skillsyou can translate technical details clearly, both internally and externally.
• Comfortable owning tasks independently in a remote-first, async team.
• You take initiative, solve problems quickly, and care about product quality.

Bonus Points

• Professional experience with Go.
• Familiarity with multi-chain ecosystems (EVM chains, L2s, Solana, etc.).
• Strong grasp of API development: REST, token-based auth, error handling, etc.
• Experience building or contributing to Web3 projects (personal or commercial).
• Enjoy helping others succeedwhether its teammates or external devs.

About You

• You love building resilient, elegant systems that developers enjoy using.
• You have the ability to work in multitasking mode.
• You enjoy learning new technologies.
• You value clarity, collaboration, and continuous improvement.
• Youre excited by the opportunity to shape how the next wave of Web3 builders get started.

Interview Process

• Intro Call (30 mins): Meet the team and align expectations
• Hiring Manager Interview (45 mins): Discussion of your professional background, motivation and etc.
• Technical Session (90 mins): Assess problem-solving and backend/API skills
• Team Interview (60 mins): Evaluate collaboration style and team add
• Founders Call (60 mins): Discuss long-term vision and your role in it
• Reference Check

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