Blockchain Architect

Web3 and the crypto ecosystem more broadly has historically had a chain centric worldview. We believe this is an outdated framework originating from a perceived scarcity in blockspace.

We believe an ecosystem wide transition towards an account centric worldview will enable the consolidation of an increasingly fragmented user experience.

At OneBalance we are developing a non-custodial account model to provide users with a seamless, account-centric experience. Our model introduces resource locks to accounts on credible commitment machines. OneBalance is a framework for managing these Credible Accounts. Our goal is to provide a missing component of the web3 stack that will help onboard the first billion humans onto crypto. You can learn more about the OneBalance vision here.

The Role

We are seeking a world-class Blockchain Architect to play a crucial role in developing the OneBalance account model and our integrations with the ecosystem. This position requires a blend of deep blockchain knowledge and experience in developing high performance distributed system architectures.

We offer a rare opportunity to use your technical skills in an environment at the forefront of new technology while collaborating with some of the most experienced teams in the crypto industry. If you're looking for a challenging and fulfilling role that involves building an exciting product with the latest developments in the Ethereum and crypto, we'd love to hear from you.


London, UK or Remote (±2 hours of London timezone)

What You’ll Do

  • Architect and build new services to connect OneBalance account holders with the crypto ecosystem
  • Design scalable systems to solve novel problems with modern cloud technology and industry best practices
  • Be responsible for the security, safety, scale, operational integrity, and architectural clarity of these systems
  • Articulate a long term vision for maintaining and scaling our backend systems and the teams running them
  • Drive standardization in crypto protocols by designing and defining interfaces and standards
  • Work closely with the OneBalance leadership and product team to set our strategy and roadmaps
  • Mentor and train other team members and teams on smart contract and systems engineering best practices


  • Minimum of 5 years of blockchain development experience with a focus on Ethereum.
  • Experience in account abstraction standards and rollup architectures
  • Experience in cross-chain solver layer interactions
  • Deep understanding of smart contract best practices and current industry patterns
  • Deep experience of architecting complex distributed systems in the blockchain space
  • Strong opinions (loosely held) on current developments in the Ethereum technical roadmap
  • Interest and passion for contributing to the crypto ecosystem
  • Self-driven in problem-solving, breaking down ambiguous work, and plotting a course of action
  • Demonstrated ability to work in fast-paced environments and maintain attention to detail.
  • Experience working in a startup of less than 30 people
  • Ability to lead by example and take responsibility for the outcome.


  • Experience writing Rust server code
  • Experience in working with crypto wallets, bridging technologies, and an understanding of Layer 2 solutions and their integration into web applications
  • Contributions to open source crypto projects


  • Generous equity allocation
  • Opportunity to work in a small, high-performance team with no corporate bureaucracy
  • Semi-regular team off-sites (1-2 per year)
  • Flexible working hours and remote work options.
  • A chance to collaborate with some of the most experienced and reputable individuals/teams in the crypto space

OneBalance is committed to diversity and inclusion. We do not discriminate based on race, nationality, gender identity, age, disability, or religion. If you're passionate about blockchain technology and have the expertise we're seeking, we encourage you to apply.

Email: jobs@frontier.tech