Senior Linux/Unix Admin
hace 8 días
London
Job Title: Senior Unix/Linux & Database AdministratorJob 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, • Support and manage front-end application environments, with experience inFlexcubeorWebLogic, • Manage and maintain Linux and Unix-based servers across a large-scale production estate (50+ servers), • Manage cluster software and high-availability configurations across systems, • Automate routine administrative tasks using shell scripting and modern tooling, • 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 documentationExperience & 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 environmentAdditional 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