Scala Backend Software Engineer, Senior / Lead

• 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.

• 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.

expert-level proficiency, and advanced mastery of a second backend language (e.g., Rust, Java, Python, PHP) is a plus

• Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
• Flexibility: A hybrid work policy
• Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
• Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
• Well-being: Personal development, coaching & fitness with our dedicated partners
• Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
• High tech: Access to high performance office equipment and gadgets
• Transport: Ledger reimburses part of your preferred means of transportation
• Discounts: Employee discount on all our products.