Database Administrator
- Posted 01 September 2025
- LocationCity of London
- Job type Contract
- Discipline Technology, Commodities and Financial Services
Job description
We're looking for a Database Administrator!
If you have:
Bachelor's Degree in Information Technology, Computer Science, Computer Engineering, or equivalent
Proven experience as a MongoDB DBA or similar role (4+ years recommended)
Strong understanding of MongoDB architecture, including sharding, replication, and indexing
Experience working with MongoDB Atlas or self-managed clusters
Proficiency with Linux systems and shell scripting
Familiarity with monitoring tools and performance tuning techniques
Experience with backup and disaster recovery processes
Review the current Debezium deployment architecture, including Oracle connector configuration, Kafka integration, and downstream consumers.
Analyze Oracle database setup for CDC compatibility (e.g., redo log configuration, supplemental logging, privileges).
Evaluate connector performance, lag, and error handling mechanisms.
Identify bottlenecks, misconfigurations, or anti-patterns in the current implementation.
Provide a detailed report with findings, best practices, and actionable recommendations.
Optionally, support implementation of recommended changes and performance tuning.
Skills :
4 + years of experience as a MongoDB DBA in production environments
Deep expertise in MongoDB architecture, including replication, sharding, backup, and recovery
Strong hands-on experience with Debezium, especially the Oracle connector (LogMiner).
Deep understanding of Oracle internals relevant to CDC: redo logs, SCNs, archive log mode, supplemental logging.
Proficiency with Apache Kafka and Kafka ecosystem tools.
Experience with monitoring and debugging Debezium connectors in production environments.
Ability to analyse logs, metrics, and connector configurations to identify root causes of issues.
Strong documentation and communication skills for delivering technical assessments.
Edge :
MongoDB Certified DBA Associate or higher.
Exposure to containerised environments (Docker, Kubernetes) and Infrastructure as Code (Terraform, etc.).
RedHat Certifications concerning Kafka or Debezium
Apply now!