AuthentifyIt is a trailblazing Web3 company dedicated to transforming the way physical objects are authenticated and linked to digital experiences. Our secure, cutting-edge platform bridges the physical and digital worlds, redefining trust and connectivity. As we continue to gain strong traction in the market, we’re seeking a skilled Senior Full Stack Developer to join our team and play a key role in advancing our mission.

Job Title: Senior Full Stack Developer
Company: AuthentifyIt
Location: Remote (EU-based)
Hours: Monday–Friday, 9 AM–5 PM BST
Salary: €60,000–€100,000 (dependent on experience)

🌐 About Us

AuthentifyIt is a pioneering Web3 company transforming how physical objects are authenticated and connected to immersive digital experiences. Our mission is to build a secure, innovative platform that seamlessly bridges the physical and digital worlds. With strong market traction and global brand partnerships, we’re looking for a Senior Full Stack Developer to help scale our technology and drive our vision forward.

🧩 The Role

We’re seeking a highly experienced Full Stack Developer with deep proficiency across both frontend and backend development. In this role, you’ll work closely with our Product Officer and other key stakeholders to build and scale a Web3-enabled platform that’s already being adopted by major global brands. You’ll take ownership of core development tasks, drive architectural decisions, and contribute to delivering a high-performance, secure application.

💻 Tech Stack & Core Requirements

You have expertise in:

• Next.js
• Nest.js
• Node.js
• MongoDB
• Solana, Metaplex, and Fireblocks

Bonus if you bring:

• DevOps experience
• Web3/blockchain knowledge
• Experience building and scaling high-traffic applications
• Fluency in French (in addition to strong English communication skills)

You are:

• Comfortable working independently and collaboratively in a remote setting
• A strong communicator who thrives in a fast-paced, agile environment

🛠️ What You’ll Do

• Design, develop, and maintain scalable, responsive web applications
• Work cross-functionally with design, product, and engineering teams to implement new features
• Integrate physical authentication systems with digital content and blockchain technologies
• Optimize performance and ensure high availability
• Create and execute full load test scenarios
• Collaborate with QA to identify and resolve bugs
• Contribute to a remote-friendly, inclusive team culture

🎁 What We Offer

• 100% remote work with flexible hours
• Competitive salary
• Opportunity to work on cutting-edge Web3 and blockchain projects
• Fast-paced startup environment with room for growth
• A supportive, mission-driven team focused on innovation

Ready to help shape the future of digital-physical connectivity? Apply now and join us on this exciting journey.