• Design, develop, and maintain back-end APIs and services using Java and frameworks such as Spring Boot • Analyze and interpret technical and functional requirements, proposing appropriate and feasible solutions • Implement automated tests (unit and integration) to ensure code quality • Perform preventive and corrective maintenance on existing systems • Optimize back-end application performance and database integrations • Actively participate in agile ceremonies, contributing estimates and technical planning • Collaborate with front-end, product, and QA teams to ensure consistent integrations and deliveries • Ensure code quality by applying programming best practices, design patterns, and performing code reviews

• Develop, evolve and maintain backend applications in .NET (C#) with a focus on performance, scalability and quality • Work on microservices architecture, participating in technical decisions and solution design (preferably Hexagonal) • Implement and consume RESTful APIs, ensuring best practices, versioning and security • Work with messaging systems (Kafka and RabbitMQ) for integration between systems • Write and maintain unit tests and support automated testing strategies • Operate in AWS Cloud environments, using managed services as required by the project • Contribute to CI/CD pipelines, deployment automation and DevOps best practices • Work in agile teams (Scrum/Kanban), collaborating closely with developers, QA, product and architecture • Support monitoring, observability and application optimization initiatives • Contribute to the migration and evolution of critical systems, such as card platforms and financial products, when applicable

• Kubernetes Deep-Dive: Work intimately with Kubernetes internals to push the boundaries of container orchestration. • Go Development: Write high-performance, resilient Go code to power the core logic of the vCluster platform. • End-to-End Ownership: Take full ownership of your work. You are self-driven and capable of managing feature development from technical design to release without needing constant oversight. • Open Source Innovation: Engage with the community and contribute to our open-source projects. You will help define the next generation of tenancy models, creating scalable solutions for isolation and resource sharing beyond simple namespaces. • Technical Problem Solving: Tackle hard engineering challenges where the solution isn't always on ChatGPT, requiring a deep understanding of systems architecture.

• Help evolve our block-building and MEV-related systems • Work across the Ethereum ecosystem, including Layer 2s