Founded in 2020, Synonym is preparing for the post-Bitcoin economy by designing and developing an ecosystem of products and protocols that includes Pubky, Bitkit, and Blocktank. We empower individuals to take control and ownership of their digital lives through digital autonomy, privacy, and open-source technology.

About the Role

We're seeking a Senior Rust Developer 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 role is ideal for a self-driven builder who is ready to contribute to high-impact projects, uphold code quality, and shape core product development.

• Contract type: Full-time
• Location: Remote only
• 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 product, UX, QA, and engineering teammates to ship 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 speed, reliability, and efficient resource usage.
• Innovation: Stay informed about emerging libraries, tools, and industry trends, and proactively suggest new approaches.
• Security & Reliability: Help protect user data and maintain system integrity across our products and services.

Skills and Qualifications

• Problem-Solving Mindset: Ability to break down complex challenges into manageable tasks and deliver scalable solutions.
• 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.
• Collaboration: Strong communication skills and the ability to work effectively in a fully remote team setting.
• AI-Assisted Engineering: Comfortable using LLM-based coding tools in daily workflow. Ability to critically evaluate AI-generated code for correctness, security, and performance.

Bonus Skills

• Cryptography: Practical knowledge of cryptographic techniques, protocols, and secure data handling.
• Server Protection: Experience building secure systems, protecting servers from 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.
• Decentralized Social Technologies: Prior work on decentralized or federated social platforms such as Nostr, Mastodon, or Bluesky.

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 while we prioritize productivity and well-being.
• Generous Time Off: 28 vacation days per year.

Synonym is building the world's first digital free-market society, "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 React / NextJS Senior Engineer to join our growing Pubky team. You'll be instrumental in developing Progressive Web Applications (PWAs) and creating intuitive user interfaces primarily using React, Next.js, IndexedDB, Tailwind CSS, and Zustand for state management. Your work will directly impact the way users interact with decentralized and peer-to-peer technologies.

We use GitHub and Slack for project management.

• Contract type: Full-time
• Location: Remote only
• Salary: Based on experience, be prepared to communicate your requirements

Responsibilities

• Design & Development: Design and build sophisticated user interfaces using React and Next.js, ensuring exceptional user experience, local first performance, and responsiveness.
• PWA Development: Build responsive and reliable Progressive Web Applications to deliver seamless user experiences across web and mobile.
• Integration: Collaborate with cross-functional teams (e.g., product, UX, QA) to ensure seamless integration of new features and improvements into existing systems.
• State Management: Effectively use Zustand for scalable, performant, and maintainable state management.
• Collaboration: Work closely with product designers, backend engineers, QA specialists, and stakeholders to deliver seamless integrations and user-driven solutions.
• Optimization & Scalability: Continuously improve application performance, responsiveness, and scalability.
• Code Quality: Perform code reviews, maintain high standards, and ensure best practices are consistently applied.

Skills and Qualifications

• React & Next.js: Demonstrated senior-level experience building robust frontend applications in React and Next.js.
• Progressive Web Apps (PWA): Proven expertise in creating PWAs with service workers, manifest configuration, offline functionality, and caching strategies.
• IndexedDB: Hands-on experience leveraging IndexedDB for efficient frontend data persistence and offline-first applications.
• Zustand: Solid practical experience in state management using Zustand for building scalable applications.
• Tailwind CSS: Proficient in designing modern, clean, responsive UI with Tailwind CSS.
• JavaScript/TypeScript: Strong foundational understanding and significant experience using TypeScript.
• Web Performance & Accessibility: Commitment to high-performance, responsive design principles, and accessible web standards.
• Version Control: Skilled with Git, comfortable collaborating within distributed teams.

Bonus Skills

• Bitcoin & Blockchain: Familiarity with Bitcoin or blockchain technologies.
• Cryptography & Security: Practical knowledge of cryptographic best practices, secure user data handling, and frontend security.
• P2P & Decentralized Systems: Experience with peer-to-peer architectures, decentralized networks, or federated technologies (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.
• Two team meetups per year with travel expenses covered.