Senior Database Administrator | Oracle

Job description

About Leidos Australia At Leidos Australia, our work goes beyond a job title. We design, build, operate and support the systems, services and capabilities that help protect and advance the Australian way of life. Backed by a global organisation of more than 40,000 people, our Australian team of around 2,000 has partnered with government, defence and national security customers for more than 30 years. We deliver mission-critical solutions where reliability, trust and purpose matter. Leidos is a destination for people who want their work to have purpose, their contribution to be recognised, and their career to grow without needing to fit a single mould. Meaningful work is supported by benefits, flexibility and career pathways that help you grow while balancing life outside work. This includes: Flex Your Way – Tailor work to your life with options including Life Days (up to 12 extra days off per year), part-time arrangements, job sharing, and compressed hours. Wellbeing That Matters – Free access to Headspace and MeQuilibrium, plus dedicated wellness spaces to support your mental, physical, and emotional wellbeing. Learn Without Limits – Access over 120,000 on-demand courses, alongside technical, project management, leadership, and professional development opportunities. Work That Makes an Impact – Contribute to nationally significant projects that matter, solve complex challenges, and accelerate your career through unique growth opportunities. Build Your Future – Whether you're deepening technical expertise or preparing for leadership, we'll invest in your development every step of the way. And Much More – These are just a few of the ways we invest in our people and help them thrive. About the Team You’ll join a team where people work with integrity, inclusion, innovation, agility, collaboration and commitment. In practice, that means sharing ownership, solving complex problems together and staying connected to the customer context, the purpose behind the work and how each role contributes to meaningful outcomes. The Civil Digital Modernisation business delivers IT services to Australian Federal and State Government departments and agencies to accelerate digital modernisation and ensure secure, resilient, and adaptive environments that meet evolving regulatory, compliance, and business needs. Our approach integrates advancing data, AI, cloud, and automation delivering agility, security, efficiency, and innovation at scale. The Opportunity As an Oracle Senior Database Administrator, you will play a key role in shaping and maintaining the enterprise Oracle database landscape that underpins critical business services and applications. Working across architecture, engineering, operations, and security teams, you will provide technical leadership to ensure database platforms remain secure, resilient, scalable, and ready to support future growth and modernisation initiatives. Lead the design, administration, and continuous improvement of enterprise Oracle database environments, including high availability, disaster recovery, performance optimisation, and capacity planning. Partner with enterprise architects, infrastructure engineers, application teams, and cybersecurity stakeholders to deliver secure, reliable, and high-performing database solutions across on-premises, cloud, and hybrid platforms. Drive database transformation initiatives including migrations, upgrades, platform modernisation, cloud adoption, automation, and operational optimisation programs. Provide technical leadership and mentoring across the database capability, establishing engineering standards, guiding architectural decisions, and identifying opportunities to improve resilience, security, efficiency, and platform performance. About You We are seeking a collaborative database professional who enjoys solving complex technical challenges, influencing technology direction, and delivering reliable database services that support critical business operations. Essential Extensive experience in Oracle Database administration, architecture, and engineering within enterprise environments. Experience with Oracle RAC, Oracle Data Guard, RMAN backup and recovery, and the design of highly available and resilient database platforms. Advanced capability in SQL and PL/SQL development, database performance tuning, workload optimisation, indexing, partitioning, and capacity management. Knowledge of Oracle database security, including authentication, authorisation, encryption, auditing, privileged-access controls, and data protection practices. Experience supporting database upgrades, migrations, patching, lifecycle management, and modernisation initiatives. Capability in Linux/Unix environments and database automation using scripting technologies such as Shell, SQL, PL/SQL, Python, or similar tools. Ability to collaborate with technical and non-technical stakeholders and translate business requirements into secure, scalable database solutions. Experience providing technical guidance, mentoring, and leadership to database administrators, engineers, or technical teams. Advantageous Experience designing and supporting Oracle database platforms within Oracle Cloud Infrastructure (OCI) and other cloud or hybrid environments. Exposure to Oracle Autonomous Database, Exadata, or other Oracle engineered systems. Knowledge of cloud-native database services, identity and access management, cloud networking, encryption, and security controls. Experience with database consolidation, platform optimisation, virtualisation, and large-scale migration programs. Relevant tertiary qualifications in Information Technology, Computer Science, Engineering, or a related discipline. Oracle certifications, including Oracle Database Administration, Oracle Database Professional, Oracle Cloud Infrastructure, or related certifications. This role requires the successful applicant to hold a NV-1 Security Clearance . What to Expect When You Apply Our hiring process is designed to be straightforward, respectful and easy to navigate. If your skills, experience and qualifications look aligned with the role, our Talent Acquisition team will contact you to discuss the next stage. You can expect: An initial conversation with our Talent Acquisition team An interview with the hiring manager or interview panel Any role-specific assessment, technical discussion or customer step required for the position We’ll let you know what to expect before each stage, including who you’ll meet and how to prepare. If you need any adjustments or support during the process, please let us know. Ready to explore what’s possible? If this sounds like a role where you can make an impact and continue to grow, we’d like to hear from you. Please apply via the “Apply Now” button with your resume. If you have any questions about the role or recruitment process, please contact Ben George, Talent Acquisition. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.