Senior Scala Backend Engineer, Ledger
Permanent Contract / CDI
Equity available
2-5 days a week in office
Platform for digital assets and Web3
Open for applications
Platform for digital assets and Web3
501-1000 employees
Open for applications
Equity available
2-5 days a week in office
501-1000 employees
Company mission
To secure the new disruptive class of crypto assets.
Role
Who you are
- Experienced engineer and continuous learner with 6+ years of relevant engineering experience
- 2+ years of technical leadership experience, including effective communication of complex concepts and cross-team coordination to ship critical products
- Advanced Scala proficiency; expert-level proficiency, and advanced mastery of a second backend language (e.g., Rust, Java, Python, PHP) is a plus
- Excellent collaboration and communication skills
- Experience collaborating closely with QA, product management, and key stakeholders to develop and deliver on a shared vision
- Led development of complex, high-performance interactive browser applications, including architecture, infrastructure, and optimization
- Experience with various web architecture patterns (e.g., Microservices, Event-Driven, P2P)
- Ability to apply and adapt software engineering best practices to the engineering environment
- Experience in the Web3 ecosystem and in a project involving blockchain fundamentals
- Solid understanding of Docker and container orchestration tools like Kubernetes
- Significant experience with web protocols such as HTTP, JSON-RPC, GraphQL, SOAP, and gRPC
- Strong comprehension of database fundamentals, both relational and NoSQL
- Experience working in a multicultural environment, with fluency in English being essential
- Experience in production support of a client-facing application
What the job involves
- Ledger Live is a Desktop and Mobile application that helps you manage all your blockchain-backed assets
- It’s built in ReactJS (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins & NFTs) as well as providing multiple financial services (Buy, Swap, Sell)
- To sustain the company's growth, Ledger is looking for new talents
- You will start by joining Ledger’s Consumer Services business unit to improve the existing transactional services, and keep delivering new ones
- The team focuses on creating easy, secure and clever ways for consumers to buy, exchange, sell, send, receive, grow and secure their crypto
- Develop and maintain high-performance, resilient microservices and APIs to power Ledger's products, including integrations with staking, yield, DeFi services, and blockchain explorers
- Contribute to the architecture, design, and implementation of scalable solutions, proactively identifying and addressing technical challenges
- Ensure software quality through testing, documentation, and performance optimization, including monitoring and alerting systems
- Enhance and maintain CI/CD pipelines to secure and streamline deployment workflows
- Provide technical leadership and mentorship, collaborating across teams to deliver impactful projects and improve engineering standards
- Drive innovation by identifying opportunities for improvement, contributing to a shared knowledge base, and participating in technical outreach
- Manage projects effectively, respecting deadlines, priorities, and deliverables
Our take
Ledger has grown into one of the world’s largest hardware wallets for digital assets since its 2014 inception, with well over 6 millions of devices sold across the globe. By offering physical devices to store private keys, customers are able to secure their digital assets offline.
The company is attempting to support the continued growth of the crypto eco-system by offering cryptocurrency owners an alternative to storing their assets on an online exchange. There, a simple password breach could cause untold damage.
Ledger’s hardware solution has proven popular with investors, seeing them receive huge funding from 10T Holdings, Cathay Innovation, and Draper Associates to name just a few.
Keen to move on and ensure against any recurrence, Ledger has since secured even more investment, and formed astute partnerships with other big names in the Crypto world, including an integration with Coinbase.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
1% employee growth in 12 months
Company
Funding (last 2 of 7 rounds)
Mar 2023
$109m
SERIES C
Jun 2021
$380m
SERIES C
Total funding: $587.4m
Company benefits
- Competitive compensation package
- Personal development initiatives
- Flexible working hours, remote-friendly environment
- 5 weeks of paid vacation + 10 days of RTT
- High performance office equipment
- Comprehensive health insurance policy
- Meal vouchers with Swile
- Reimbursement for sports and cultural activities
- Annual company outings and regular socials
- Employee discount on Ledger products
Company HQ
Mail, Paris, France
Leadership
Pascal Gauthier
(Chairman & CEO)Before becoming CEO at Ledger, they worked as Venture Partner in Mosaic Ventures, a London based venture capital firm focusing on Series A stage companies. They are also the non-executive chairman of Kaiko, a financial data website on Bitcoin.
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