Big Data Specialist
Responsibilities
- Operate, monitor, and support Hadoop-based data lake platforms.
- Provide L3 incident response, deep troubleshooting, and performance tuning for big data components.
- Ensure data integrity, replication, and capacity management within HDFS clusters.
- Develop, maintain, and automate monitoring and alerting for key services and node health.
- Work closely with platform and data teams to onboard new workloads, ensuring proper resource allocation and performance.
- Apply patches, upgrades, and configuration changes to maintain security and stability of the big data environment.
- Manage Kerberos-based authentication, Ranger/Sentry policies, and TLS encryption.
- Collaborate with storage, network, and security teams to optimize throughput, access controls, and backup strategies.
- Maintain cluster documentation and provide knowledge sharing.
Technical Skills
- Hadoop Ecosystem & Data Lake Operations
- Security & Access Control in Distributed Environments
- Ability to diagnose and resolve complex issues in Big Data environments
- Strong communication skills to collaborate with stakeholders
Language Skills
- Fluent in English
Job Details
- Seniority level: Mid‑Senior level
- Employment type: Full‑time
- Job function: Consulting
- Industries: Banking
- Informações detalhadas sobre a oferta de emprego
Empresa: act digital EMEA - Alter Solutions Localização: Lisboa
Lisboa, Lisboa, PortugalPublicado: 29. 11. 2025
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