Senior Full-Stack Engineer for Blockchain Payments Infrastructure

Stable is a Layer 1 blockchain engineered for frictionless financial transactions, utilizing USDT as its native gas token. By eliminating volatile token requirements for transaction fees, Stable prioritizes user experience and accessibility. The platform excels in peer-to-peer payments, remittances, and cross-border transactions, delivering near-instant settlement with enhanced capital efficiency in a developer-friendly ecosystem.

We're building open payments infrastructure for always-on payment solutions powered by USDT. Our enterprise-focused products enable businesses to send and receive money instantly, securely, and cost-effectively, 24/7 across global markets. Operating as a fully remote team, we serve clients worldwide.

Basic Qualifications

• 3+ years of full-stack engineering experience with a proven delivery track record
• Strong proficiency in JavaScript/TypeScript with a willingness to work across multiple programming languages, including Kotlin and Go
• Experience building SDKs, APIs, or developer tools strongly preferred
• React Native and mobile development experience is a plus
• Cryptocurrency, fintech, or relevant side project experience preferred (Bitcoin/Lightning background not required)
• Demonstrated ability to quickly ramp up on new technologies and domain knowledge
• Interest in financial technology and blockchain ecosystems
• Proven ability to work independently and deliver exceptional results under tight deadlines
• Adaptability and resourcefulness when solving complex problems across unfamiliar technology stacks
• Strong collaborative skills with experience driving cross-functional initiatives

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• Proactive mindset with bias toward action and continuous improvement
• Bachelor's degree in Computer Science or equivalent experience

Key Responsibilities

SDK Development & Integration

• Design, develop, and maintain software development kits enabling seamless partner integration with our backend infrastructure
• Build across multiple programming languages and platforms, currently focused on JavaScript/TypeScript with expansion into Kotlin, Go, and additional languages
• Create robust developer tools and core functionality to support high-volume enterprise client implementations

Engineering Excellence

• Deliver thoroughly tested, well-documented SDKs optimized for developer adoption and ease of use
• Contribute to architectural decisions and feature design with a focus on scalability, performance, and maintainability

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• Maintain exceptional engineering standards in a dynamic, fast-paced environment

Collaboration & Innovation

• Partner closely with engineering teams, product managers, and external partners to deliver reliable, high-quality solutions
• Adapt rapidly to emerging technologies, programming languages, and evolving product requirements
• Drive initiatives forward with a proactive, solution-oriented approach

Summary

• Contractor engagement
• Salaried compensation

Please note: This job description is not an all-inclusive list of responsibilities but rather a general definition of the contractor’s scope and function within the company.