Full-Time

Backend Engineer

Ledger

Ledger

501-1,000 employees

Secure digital asset management and hardware wallets

Hardware

Mid

London, UK

Required Skills
Kubernetes
Java
Docker
Blockchain
AWS
Haskell
Scala
Requirements
  • 3+ years of experience in backend robust development
  • Adaptability to do teamwork in a fast-evolving environment
  • Scala, Haskell or functional programming experience is a nice to have
  • Java developers who are willing to dive into Scala technologies are welcome
  • Strong knowledge on relational database
  • Experience with continuous integration / deployment solutions
  • Experience of Containerization and Cloud deployments (AWS, Docker, Kubernetes)
  • Knowledge on Event-based systems
  • Autonomous, proactive, and capable of self-training
  • Adept of pragmatic and simple solutions
  • Interest in cryptocurrencies and blockchain technology
  • Enthusiastic about teamwork, learning, and teaching
Responsibilities
  • Build highly available, resilient, consistent, and performant services to power Ledger’s products
  • Integrate Staking, Yield, and DeFi services through Partners API
  • Interact with blockchain explorers to track Network events of interest (Fees, Transaction status…)
  • Deliver robust APIs to allow agnostic consumption (Mobile, Desktop, Web)
  • Engage in the architecture and design processes, ensuring the designed solution meets project requirements
  • Maintain and evolve the existing stack
  • Conduct benchmarks to identify bottlenecks and optimize the overall performance of services
  • Deliver high-quality software (Test it, Document it, Demonstrate it)
  • Design monitoring systems to detect unexpected failures/behavior and efficient alerting
  • Develop and contribute to CI/CD pipelines to deploy and secure workflows

Ledger, a Paris-based global platform for digital assets and Web3, is a leading name in critical digital asset security, with 20% of the world's crypto assets secured through its platform. The company's culture of technical innovation is evident in its diverse product range, including hardware wallets, a companion app, and the world's first secure-minting and first-sale distribution platform, all designed to provide the highest level of security for crypto assets. With a presence in 200 countries, Ledger's industry leadership is demonstrated by its extensive customer base, which includes over 100 financial institutions and brands, and its commitment to user education and empowerment through the Ledger Academy and Quest.

Company Stage

Series C

Total Funding

$577M

Headquarters

Paris, France

Founded

2014

Growth & Insights
Headcount

6 month growth

-3%

1 year growth

-3%

2 year growth

33%