Lead Oracle Database Administrator

The Role

Sigma Suisse is partnering with a large international organisation operating in a highly regulated environment to recruit a Oracle Database Operations Lead.

You will join a global DBA team supporting a very large Oracle estate across on-premises and hybrid/public cloud environments
. Based in Geneva
, you will take ownership of the database platform “system side”: operating systems, engineered infrastructure, high availability, replication, monitoring, and the gradual migration from on-prem to cloud
.

This is a hands-on, deeply technical role, closely connected to CTRM and analytics platforms
, where most critical business data flows transit.

• Own the deployment, operations and support of Oracle database platforms on-prem and in cloud/hybrid environments.
• Administer and secure Oracle 19c+ environments (incl.
  RAC, Data Guard, RMAN, ASM, CDB/PDB
  ), and ensure high availability and recoverability.
• Operate and improve database monitoring and performance tooling (
  OEM/monitoring, performance tuning, capacity planning
  ).
• Support Oracle middleware / data replication stack, including Oracle Golden Gate
  , and contribute to zero-downtime maintenance approaches.
• Provide operational support around CTRM and analytics applications: installation support, critical process monitoring, and close collaboration with business and development teams.
• Work across infrastructure, security, network and application teams regionally and globally.
• Define/document standards, procedures, and contribute to continuous improvement (automation, operational excellence).
• Participate in planned off-hours activities when required (major changes, incidents, occasional weekend work).

• 10–15 years (target) in a similar role as an Oracle DBA / database platform administrator in mission-critical environments.
• Strong hands-on expertise with Oracle 19c+ and core components:
  RAC, Data Guard, RMAN, ASM, CDB/PDB
  , performance diagnostics and tuning.
• Solid OS/platform experience:
  Oracle Linux and Oracle Solaris (standalone and clustered).
• Proven experience with Oracle Golden Gate (replication, resilience, maintenance windows, downtime reduction).
• Experience supporting hybrid/public cloud database services and platforms (
  AWS and/or OCI
  , hybrid connectivity and operations).
• Good understanding of database infrastructure: server platforms and enterprise storage (e.g., engineered systems / enterprise compute & storage ecosystems).
• Automation mindset with practical scripting skills (
  Shell and/or Python
  ) to streamline operations.
• Strong troubleshooting and RCA capabilities across hardware/software incidents.
• Excellent English communication (written and spoken).
• Oracle certification required (as per hiring brief).