Backend Developer - Blockchain Integrations (100% remote)

Tether Operations Limited; Madrid; A distancia; EUR 60.000 - 80.000; Jornada completa

Descripción de la vacante

A fintech leader based in Madrid is looking for a Software Engineer to contribute to the Wallet Development Kit. The role involves technical design and collaboration on self-custodial wallet applications. Candidates should have 5+ years of experience in Node.js and JavaScript, with a strong focus on security and innovation in the fintech space.

Formación

• 5+ years of experience with Node.js and JavaScript programming.
• Experience building or integrating crypto wallets for DeFi.
• Familiarity with modular architecture for scalable applications.

Responsabilidades

• Contribute to groundbreaking projects using agile methodologies.
• Ensure backend services are responsive and real-time.
• Maintain high security standards for backend processes.

Conocimientos

Node.js

JavaScript

Security best practices

Agile methodologies

Peer-to-Peer technologies

Complex platform development

Descripción del empleo

Join Tether and Shape the Future of Digital Finance

At Tether, we’re pioneering a global financial revolution with innovative solutions that empower businesses—ranging from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. Our blockchain technology enables instant, secure, and global digital token transactions at a low cost. Transparency underpins our operations, fostering trust in every transaction.

Innovate with Tether

Tether Finance: Our product suite includes the world’s most trusted stablecoin, USDT, used by hundreds of millions, and pioneering digital asset tokenization services.

Additional Initiatives:

Tether Power: Sustainable energy solutions that optimize excess power for eco-friendly Bitcoin mining across diverse facilities.

Tether Data: Cutting-edge solutions like KEET, our flagship app, to advance AI, P2P tech, and secure data sharing.

Tether Education: Providing digital learning opportunities to empower individuals in the digital and gig economies.

Tether Evolution: Pushing technological boundaries to merge human potential with innovation.

Why Join Us?

Our global remote team is passionate about fintech innovation. Join us to work alongside talented professionals, drive industry standards, and contribute to a rapidly growing industry leader. If you excel in English communication and are eager to contribute to our innovative platform, Tether is the place for you.

About the job

The Wallet Development Kit (WDK) Software Engineer develops Tether's open-source toolkit for self-custodial wallet applications on mobile and desktop platforms. Responsibilities include technical design, implementation, and collaboration to enhance the toolkit. Experience with wallet creation or in DeFi is a plus.

Responsibilities

• Innovative Solutions: Contribute to groundbreaking projects using agile and innovative technologies.
• Scalability: Ensure backend responsiveness and real-time performance to support growth.
• Security: Maintain high security standards to protect assets and data.
• Technical Expertise: 5+ years in Node.js and JavaScript; experience with crypto wallets, modular architecture, complex platform development, and P2P technologies.
• Quick Learner: Adapt swiftly to new technologies.
• Security Awareness: Implement best security practices.

Nice to have

• Experience with high-availability systems, additional programming languages (Go, Rust, C++), message queues (Redis), caches, job queues, and mobile development (React Native, Flutter, Native).

Important information for candidates

Beware of recruitment scams. Apply only through official channels listed on our careers page. Verify recruiters’ identities via verified LinkedIn profiles. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication will be from official email addresses ending in @tether.to or @tether.io. We will never ask for payment or financial information. For concerns, contact us through our official website.

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