Job Description
The full job description covers all associated skills, previous experience, and any qualifications that applicants are expected to have.
Job Title: Senior Oracle / SQL / MySQL Database Administrator (Operational Technology Environment)
Location: Wokingham or Warwick – Hybrid (3 days onsite)
Clearance: SC Cleared or SC Eligible (Mandatory)
Level: Senior / Lead
Overview
Our client is seeking a Senior Database Administrator with deep expertise across Oracle, SQL Server, and MySQL, and proven experience supporting databases within Operational Technology (OT) environments.
This is not a traditional IT DBA role. You will be working within safety-critical, highly regulated, and change-controlled industrial environments, supporting systems that directly impact SCADA, plant operations, manufacturing execution systems (MES), and real-time production.
The focus is on stability, resilience, and security — where uptime, compliance, and safety are non-negotiable.
Key ResponsibilitiesDatabase Administration & Operations
* Administer, maintain, and optimise Oracle (12c/19c), SQL Server (2016+), and MySQL databases in production OT environments
* Perform installations, patching, configuration, upgrades, backups, and recovery
* Manage database objects, storage, schemas, tablespaces, indexing, and access controls
* Ensure 24/7 availability of mission-critical operational systems
OT Systems Support
* Work closely with SCADA, control engineers, and plant operations teams
* Support databases integrated with PLCs, DCS, historians, and MES platforms
* Operate within restricted networks with strict change control and limited maintenance windows
* Troubleshoot issues impacting real-time operations and plant uptime
Performance & Reliability
* Identify and resolve performance issues (wait events, deadlocks, slow queries)
* Implement high availability solutions including RAC, Data Guard, Always On, and Log Shipping
* Conduct proactive monitoring, tuning, and capacity planning
Backup, Recovery & DR
* Manage RMAN, SQL Server backups, and MySQL backup strategies
* Execute point-in-time recovery and disaster recovery procedures
* Participate in resilience testing and DR exercises
Security & Compliance
* Harden database environments in line with NIST, IEC 62443, ISO 27001
* Manage access controls, auditing, logging, and privilege management
* Apply patches within strict OT-approved schedules
Documentation & Governance
* Produce detailed SOPs, architecture diagrams, and deployment guides
* Follow formal change management processes
* Maintain audit-ready documentation for regulatory inspections
Essential Skills & ExperienceTechnical Expertise
* 7+ years hands-on DBA experience in production environments
* Strong administration experience with:
* Oracle 12c/19c
* Microsoft SQL Server 2016+
* MySQL (mandatory)
* Tools: RMAN, OEM, Data Pump, SQL Server Agent, SSIS/SSRS
* Database performance tuning and optimisation
OT / Industrial Experience
* Experience supporting databases integrated with:
* SCADA / DCS
* MES
* Industrial Historians (OSI PI, Wonderware, AspenTech)
* Plant automation systems
* Understanding of OT network segmentation, security zones, and operational constraints
* Experience in regulated or safety-critical industries such as:
* Utilities / Power Generation
* Manufacturing
* Oil & Gas
* Pharmaceuticals / Life Sciences
* Chemicals
Soft Skills
* Strong stakeholder communication with engineering and plant teams
* Ability to work independently within isolated OT environments
* Calm, incident-response mindset focused on safety and uptime
Preferred Qualifications
* Oracle OCP / OCM
* Microsoft Certified: Database Administrator
* Knowledge of IEC 62443, NIST 800-82 or OT cybersecurity standards
* Experience with OT-to-IT data replication
* Linux/UNIX administration for Oracle environments
Why Join? xsngvjr
* Work on mission-critical national infrastructure systems
* High-impact role supporting real-world operational environments
* Senior-level ownership and autonomy
* Hybrid working with stable long-term programme
* Competitive salary and benefits package
If you’re an experienced DBA who thrives in high-availability, safety-critical environments and enjoys working at the intersection of IT, OT, and industrial systems, we’d love to hear from you.
Apply now for a confidential discussion.