SpruceID lets users control their data across the web. Instead of people signing into platforms, we imagine platforms should sign into people’s data vaults. We implement this pattern into digital wallet ecosystems for governments, enterprises, and blockchains. We believe that architectures that enable individual autonomy in the digital world are necessary for free societies and dynamic economies to thrive.

At SpruceID, we are reimagining trusted interactions by creating the world’s best software for packaging beliefs digitally. We are a team of programmers working to develop world-class open source products and libraries implementing open global standards in identity.

There are no well-worn paths or theoreticals here. Every SpruceID technical staffer gets their hands dirty writing code, learning new technologies, and solving problems at the bleeding edge of our space. We hire results-oriented developers who love technology and are committed to intellectual honesty, user privacy, and innovation. 

You will be responsible for developing cross-platform libraries and server software in Rust. Our software is secure by design, professionally audited, and suitable for high stakes applications. You will also have the opportunity to contribute to emerging global technology standards for digital identity. While we don't require you to have Rust experience to apply for this job, you should demonstrate a strong aptitude for statically typed languages, memory management, and secure programming practices.

Responsibilities

• Contribute to new and existing Rust codebases, with a focus on high code quality 
• Write code that runs across platforms including backend services, mobile devices, and in the browser
• With support and review from cryptographers, use cryptographic APIs to implement digital signatures, message authentication, encryption/decryption, and zero-knowledge proof protocols for production applications 
• Write mobile applications to integrate with a backend service

Qualifications

• Experience writing widely-distributed backend software in statically-typed languages
• Aptitude for computer security, correct use of cryptography, and user data privacy
• Proficiency in backend web frameworks, API design, databases, and scalability
• Experience with one or more of Javascript, Swift, Kotlin, Flutter, React Native 
• Experience collaborating with geographically and culturally diverse engineering scrum teams

Bonus

• Proficiency with functional programming paradigms and use of advanced type systems found in languages such as Rust, C++, OCaml, or Haskell
• Contributions to open source software projects and technology standards
• Familiarity with operating system internals, compiler internals, memory management, and low level programming
• Familiarity with cloud development
• Bachelor’s degree in computer science or related field

We are passionate about cultivating a thriving culture of diverse individuals who bring unique perspectives to our mission. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status.

Our product is called Credible, and it allows organizations to manage the complete lifecycle of digital credentials, across issuance, custody, and verification. We support a variety of use cases including high assurance state identity with the mobile driver’s license, professional licensing, and even identities for non-person entities such as machines on a network.

We release our open-source libraries under the brand SpruceKit, which span foundational building blocks for digital wallets, verifiers, and issuers of digital credentials. Most of our core software is written in Rust, and cross-compiled to different environments as necessary. This ensures we have reduced overhead for common functionality, while taking full advantage of Rust’s efficiency and memory safety on specific platforms.