Oracle Database Administrator (Oracle DBA)

Free-Work UK; Leatherhead; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Excellent pension

Private healthcare

Share scheme (3.5% + 3.5% matching)

Job summary

CGI is seeking an experienced Oracle Database Administrator to own production environments and drive patching, maintenance and troubleshooting for mission-critical systems. You will work with a broad Oracle stack, including Multitenant environments, RMAN backups and performance tuning, in a security-focused setting.

You will be based in Leatherhead, Surrey, five days a week, collaborating with SME colleagues to deliver robust database services while maintaining compliance with UK security

Qualifications

• Strong hands on production Oracle Database Administration experience.
• Patching expertise including CPU/RU, OPatch and Datapatch.
• Experience administering and troubleshooting Oracle Multitenant CDB/PDB environments, including cloning.
• Experience with RMAN backup and recovery.
• Knowledge of AWR/ASH, SQL and database performance troubleshooting.
• Experience with Oracle Solaris production support, OS management, SRU patching, networking and Zones administration.
• Knowledge of ZFS administration, including pools, datasets, snapshots, capacity and filesystem troubleshooting.
• Experience administering Oracle databases on Windows Server, including services, patching and troubleshooting.
• Exposure to Oracle Fusion Middleware/WebLogic administration, patching and troubleshooting would be beneficial.
• Ability to work effectively within a collaborative, security-focused technical environment.
• You must hold, or be eligible to obtain, the required UK Security Clearance.

Responsibilities

• Administer & Support – Manage production Oracle databases, maintaining availability, stability and performance.
• Patch & Maintain – Deliver Oracle CPU/RU patching using OPatch and Datapatch, diagnosing and resolving patching issues.
• Troubleshoot & Resolve – Investigate database, SQL and performance issues using appropriate Oracle diagnostic tools.
• Protect & Recover – Support backup and recovery activities using RMAN.
• Manage & Optimise – Administer Oracle Multitenant CDB/PDB environments, including maintenance, cloning and troubleshooting.
• Analyse & Improve – Use AWR/ASH and SQL analysis to identify issues and improve database performance.
• Collaborate & Innovate – Work with colleagues across technical disciplines to develop practical solutions to complex operational challenges.
• Support Wider Platforms – Where required, contribute to Oracle WebLogic/FMW, Solaris, ZFS and Oracle database services running on Windows Server.

Skills

Oracle Database Administration

Oracle patching

RMAN backups

Oracle Multitenant CDB/PDB

AWR/ASH, SQL performance

Oracle Solaris

WebLogic / Fusion Middleware

Windows Server

Security clearance

Tools

OPatch

Datapatch

RMAN

WebLogic

ZFS administration

Job description

Join CGI and help deliver resilient, high-performing database services that underpin critical programmes across our Space, Defence and Intelligence business. As an Oracle Database Administrator, you’ll take ownership of production environments, solve complex operational challenges and contribute ideas that strengthen performance, availability and security. Working alongside an experienced community of technical experts, you’ll have the support to develop your capabilities while making a tangible contribution to secure, mission-critical outcomes. This is an opportunity to apply your Oracle expertise in an environment where collaboration, technical creativity and personal accountability are valued, while supporting systems that make a lasting difference.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.

Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance.

Location: Leatherhead, Surrey - this role requires you to work from the CGI Leatherhead office five days per week.

Candidate Profile

In this role, you will administer and support Oracle database environments underpinning secure, mission-critical systems. You’ll take ownership of day-to-day production database administration, including patching, maintenance and troubleshooting, helping ensure services remain secure, stable and available.

You’ll work collaboratively with technical specialists across CGI, bringing your own ideas and expertise to complex problems while having access to the support and knowledge of our wider community. You’ll also have opportunities to work across Oracle Multitenant, backup and recovery, performance optimisation, middleware, Solaris, ZFS and Windows environments.

• Administer & Support – Manage production Oracle databases, maintaining availability, stability and performance.
• Patch & Maintain – Deliver Oracle CPU/RU patching using OPatch and Datapatch, diagnosing and resolving patching issues.
• Troubleshoot & Resolve – Investigate database, SQL and performance issues using appropriate Oracle diagnostic tools.
• Protect & Recover – Support backup and recovery activities using RMAN.
• Manage & Optimise – Administer Oracle Multitenant CDB/PDB environments, including maintenance, cloning and troubleshooting.
• Analyse & Improve – Use AWR/ASH and SQL analysis to identify issues and improve database performance.
• Collaborate & Innovate – Work with colleagues across technical disciplines to develop practical solutions to complex operational challenges.
• Support Wider Platforms – Where required, contribute to Oracle WebLogic/FMW, Solaris, ZFS and Oracle database services running on Windows Server.

Required Qualifications To Be Successful In This Role

You’ll bring strong hands-on Oracle production DBA experience and proven expertise in Oracle database patching. You should be comfortable taking responsibility for database services in demanding production environments, approaching problems methodically and working collaboratively to deliver reliable outcomes. Experience across the wider Oracle and Solaris technology stack would strengthen your contribution, with support available to broaden your knowledge further.

• Strong hands on production Oracle Database Administration experience.
• Strong Oracle patching experience, including CPU/RU, OPatch, Datapatch and patch troubleshooting.
• Experience administering and troubleshooting Oracle Multitenant CDB/PDB environments, including cloning and maintenance.
• Experience with Oracle backup and recovery using RMAN.
• Knowledge of AWR/ASH, SQL and database performance troubleshooting.
• Experience with Oracle Solaris production support, OS management, SRU patching, networking and Zones administration.
• Knowledge of ZFS administration, including pools, datasets, snapshots, capacity and filesystem troubleshooting.
• Experience administering Oracle databases on Windows Server, including services, patching and troubleshooting.
• Exposure to Oracle Fusion Middleware/WebLogic administration, patching and troubleshooting would be beneficial.
• Ability to work effectively within a collaborative, security-focused technical environment.
• You must hold, or be eligible to obtain, the required UK Security Clearance.