Cryptography Jobs in Web3

132 jobs found

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Job Position Company Posted Location Salary Tags

Synonym

Remote

Ethereum Foundation

Remote

$96k

Anza

United States

$90k - $150k

CertiK

Remote

$120k - $220k

inetum2

Lisbon, Portugal

$94k - $149k

Fireblocks

Remote

$88k - $110k

Binance

Dubai, United Arab Emirates

Binance

South East Asia

Blockstream

Remote

$175k - $240k

Nexus

San Francisco, CA, United States

$105k - $180k

Aztec

Remote

$72k - $77k

Matter Labs

Remote

$90k - $110k

Fabric of Truth, Inc

Belgium

$81k - $95k

Fabric of Truth, Inc

Belgium

$89k - $102k

Nillion

Remote

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.

Is cryptography a good career?

Cryptography can be a very rewarding and fulfilling career for those who are interested in mathematics, computer science, and security

Cryptography is the science of protecting information from unauthorized access or modification, and it plays a critical role in information security

With the increasing need for secure communication and transactions in our digital world, there is a growing demand for professionals with expertise in cryptography

Cryptography professionals can work in a variety of fields, including government agencies, financial institutions, technology companies, and more

Cryptography requires strong analytical and problem-solving skills, as well as an understanding of algorithms and programming

In addition, communication skills are important, as cryptography professionals often work in teams and must be able to explain complex concepts to non-technical stakeholders

If you have a strong interest in mathematics, computer science, and security, and enjoy solving complex problems, cryptography can be an excellent career choice with many opportunities for growth and advancement.