Pubky - Rust Senior Engineer

The Team Founded in 2020, Synonym is building the world’s first digital free-market society, including any necessary R&D required to deliver “The Atomic Economy.” The Atomic Economy is a civic-engineering initiative to replace traditional institutions with open protocols and products that empower individuals. Our current products include Pubky (self-sovereign identity & open social graph), Pubky Ring (Pubky keychain & auth), Bitkit (Bitcoin & Lightning wallet), and Blocktank (Lightning Service Provider). Each product demonstrates building blocks for a new society. It is our mission to prove a complete, interoperable alternative to today’s centralized systems, rooted in digital autonomy, and open-source technology. Synonym is an entirely remote team working to bring new integrated products to open source protocols and cutting-edge peer-to-peer technology. About the Role We’re seeking a Senior Rust Engineer to join our growing Pubky team. You will play a vital role in designing, building, and maintaining our core products, with a particular focus on Pubky Core and Pubky Nexus . This position is perfect for a self-driven individual who is ready to contribute to high-impact projects, ensure code quality, and contribute to core product development. USA citizens and USA residents are not eligible for this position. Remote only Contract type: Full-time Location: Remote Salary: Based on experience, be prepared to communicate your requirements Responsibilities Design & Development : Architect, develop, and maintain robust Rust-based solutions for our core products and protocols. Integration : Collaborate with cross-functional teams (e.g., product, UX, QA) to ensure seamless integration of new features and improvements into existing systems. Code Quality : Perform code reviews, implement best practices, and maintain high standards of code quality and documentation. Scalability & Performance : Optimize applications for maximum speed, reliability, and scalability, ensuring efficient resource usage. Innovation : Stay informed about emerging libraries, and industry trends; proactively suggest and implement improvements or new approaches. Security & Reliability : Work closely to protect user data and maintain system integrity. Skills and Qualifications Expertise in Rust : Proven experience building production-grade applications or systems in Rust. Systems Programming : Comfortable working with low-level systems, concurrency, and performance optimization. Data & APIs : Familiarity with database management, RESTful APIs, and related technologies. Problem-Solving Mindset : Ability to break down complex challenges into manageable tasks and deliver scalable solutions. Collaboration : Strong communication skills and the ability to work effectively in a fully remote team setting. Version Control : Proficient with Git or similar tools for source code management. Bonus Skills Cryptography : Practical knowledge of cryptographic techniques, protocols, and secure data handling. Server Protection : Experience building secure systems, protecting servers from potential threats, and designing robust access controls. Decentralized / P2P Systems : Exposure to peer-to-peer architectures and protocols. Blockchain / Bitcoin : Experience with Bitcoin or other blockchain technologies. Dex Social Technologies : Prior work on decentralized or federated social platforms like Nostr, Mastodon, Bluesky, etc. Why Join Us? Impactful Work : Play a key role in shaping next-generation technologies that empower individuals and communities. Growth & Ownership : Enjoy the flexibility to define your role, innovate, and lead initiatives. Cutting-Edge Environment : Collaborate with a forward-thinking, decentralized team working on Bitcoin and peer-to-peer ecosystems. Remote Culture : Work from anywhere with flexible hours. We prioritize productivity and well-being. Generous Time Off : 28 vacation days per year. When applying, mention the word CANDYSHOP to show you read the job post completely.