Job Title: Senior Unix/Linux & Database Administrator
Job Purpose
We are seeking a hands-on, experienced Senior Administrator specialising in Unix/Linux environments and database management within the financial services sector. This role is critical to the stability, performance, and scalability of a recently implemented core banking platform (live since October).
The successful candidate will be expected to hit the ground running, supporting a complex, high-availability environment spanning 50+ servers and 15-20 databases, while also contributing to ongoing optimisation and platform maturity.
Key Responsibilities
Database & Platform Management
- Administer and optimise enterprise databases (including SQL Server and Oracle environments) supporting core financial applications
- Manage and support clustered database environments, including Oracle RAC
- Ensure high availability, performance tuning, and data integrity across all database platforms
Application & Web Layer Support
- Support and manage front-end application environments, with experience in Flexcube or WebLogic
- Participate in web environment testing and ongoing platform stabilisation following recent go-live
Infrastructure & Systems Administration
- Manage and maintain Linux and Unix-based servers across a large-scale production estate (50+ servers)
- Perform system upgrades, patching, and performance tuning across OS and database layers
Cluster & Resiliency Management
- Manage cluster software and high-availability configurations across systems
- Support disaster recovery planning, testing, and execution
Automation & Continuous Improvement
- Automate routine administrative tasks using shell scripting and modern tooling
- Work closely with application and infrastructure teams to troubleshoot production issues and improve system performance
Governance & Operations
- Ensure compliance with IT security standards and financial regulatory requirements
- Align with ITIL processes and formal change management practices
- Provide on-call support and contribute to incident response and operational documentation
Experience & Skills Required
- Database Expertise:
- 7+ years in DBA roles, including SQL Server and Oracle
- Strong experience with clustering, storage, and performance tuning
- Hands-on experience with Oracle RAC
- Systems Expertise:
- 5+ years administering enterprise Linux/Unix environments
- Application Layer Experience:
- Experience supporting Flexcube or WebLogic environments
- Technical Skills:
- Advanced SQL and procedural database languages
- Strong Unix/Linux shell scripting skills
- Environment Experience:
- Proven background supporting core banking systems
- Experience working in complex, multi-server, multi-database environments
- Tooling & Processes:
- Familiarity with automation, monitoring, and log analysis tools
- Strong understanding of ITIL and change management frameworks
- Soft Skills:
- Strong problem-solving ability with a proactive, hands-on mindset
- Ability to operate independently in a fast-paced, production-critical environment
Additional Context
- Recently implemented core banking system (live since October)
- Estate includes 50+ servers and 15-20 databases
- Significant focus on stabilisation, optimisation, and scalability
- Requires a candidate who can quickly take ownership and deliver impact
