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We are seeking a Full-Stack Engineer to work on Credit, the company’s leading undercollateralized lending system, with a focus on the World MiniApp and credit.cash. The ideal candidate will have expertise in Ethereum and TypeScript, along with strong knowledge of Postgres, Next.js, and React. While speed is crucial, equal emphasis is placed on quality and rigor. Products must perform smoothly for users worldwide, particularly those on lower-end devices. Working closely with the founding team, the engineer will ship frequently and make a direct impact on hundreds of thousands of lives, seeing their work in use every day.

Stack

• Next.js (TypeScript)
• Postgres
• React
• Tailwind (shadcn)
• World’s MiniKit
• Viem / wagmi

Key Responsibilities

• Drive end-to-end development of applications, with a focus on performance, scalability, and reliability
• Design and scale infrastructure and services to deliver fast, efficient performance across regions
• Build and optimize frontend components for responsiveness and accessibility across mobile and desktop devices
• Lead technical discussions, provide guidance, and mentor junior engineers
• Collaborate cross-functionally with product and design to deliver impactful features
• Ensure code quality through reviews, refactoring, and maintaining best practices across the codebase

Requirements

• Proven expertise in Ethereum and TypeScript
• Strong experience with Postgres, Next.js, and React
• Track record of building and scaling production web applications
• Deep understanding of backend performance and optimization techniques
• Experience scaling infrastructure, including databases, hosting, and networking
• Exceptional problem-solving skills and attention to detail

Nice to Have

• Experience providing technical leadership or mentorship
• Familiarity with shadcn, World’s MiniKit, and Viem/wagmi
• Contributions to open-source software projects

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Want to put your job search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles.

Sign up now at https://app.calyptus.co/auth/candidate/sign-up and let the opportunities come to you.