- At Devoteam, we believe that technology with strong human values can actively drive change for the better. Discover how Tech for People unlocks the future, creating a positive impact on the people and the world around us. We are a global leading player in Digital Transformation for leading organisations across EMEA, with a revenue of €1B. We believe in transforming technology to create value for our clients, partners and employees in a world where technology is developed for people. We are proud of the culture we have built together. We are proud of our people at the service of technology. We are proud of our diverse environment. Because we are \#TechforPeople. Join our multidisciplinary team of Cloud experts, Designers, Business consultants, Security experts, Engineers, Developers and other extraordinary talents, spread across more than 20 EMEA countries. Become one of our \+10\.000 tech and business leaders on cloud, data and cyber security. Let’s fuse creativity with technology together and build innovative solutions that actively change things for the better. We are looking for a **Big Data Platform Administrator** to operate and maintain large\-scale Hadoop\-based data lake environments for a leading financial services organization. **Responsibilities:** * Operate, monitor, and support **Hadoop\-based data lake platforms;** * Provide **incident response** , deep troubleshooting, and performance tuning across big data components; * Ensure **data integrity, replication, capacity management** , and resource allocation within HDFS clusters; * Develop, maintain, and automate **monitoring and alerting** for platform services and node health; * Support onboarding of new workloads in collaboration with platform and data teams; * Apply **patches, upgrades, and configuration changes** to maintain cluster stability and security; * Manage authentication, authorization, and encryption: **Kerberos, Ranger/Sentry, TLS;** * Work closely with storage, network, and security teams to optimize throughput, access controls, and backup strategies; * Maintain platform documentation and contribute to knowledge sharing. * Minimum **5 years of experience** in Big Data / Hadoop platform administration; * Bachelor’s degree in **Computer Science** or equivalent; * Strong knowledge of **Hadoop, Cloudera, YARN, Kafka;** * Solid expertise in **Linux** , JVM tuning, system\-level troubleshooting, and distributed environments; * Experience with **PostgreSQL / SQL** databases; * Automation skills using **Ansible, Python, Java;** * Strong background in **Kerberos, cryptography, and access control policies;** * Understanding of **microservices architectures** and **on\-premise deployments;** * Fluency in **English** (mandatory); * Experience in banking or regulated environments is a plus. - Devoteam Group works for equal opportunities, promoting its employees based on merit and actively fights against all forms of discrimination. We are convinced that diversity contributes to the creativity, dynamism and excellence of our organization. All of our vacancies are open to people with disabilities.