In-Demand Senior systems administrator Jobs in South Australia

Senior System Administrator
Leader Computers —Adelaide SA
- Computer Science
- SQL
- Bachelor's degree
Contract Administrator
ASC Pty Ltd —Osborne SA
- Full-time
- Administrative experience
- Organisational skills
- Construction
- Parental leave
Senior Finance Administrator
John Holland —Adelaide SA
- Microsoft Excel
- ERP systems
- Administrative experience
Senior Contracts Administrator
DCOH —Adelaide SA
- Full-time
- Engineering
- Master's degree
- Administrative experience
Quick Apply
Senior Linux System Administrator - Support Engineer (with High Performance Computing Focus)
Hewlett Packard Enterprise —Adelaide SA
- Full-time
- Computer Science
- Analysis skills
- Bachelor's degree
Database Administrator (DBA)
Tasmain CloudWorks —Adelaide SA
- $56.78 - $81.99 an hour
- Full-time
- Computer science
- Azure
- Oracle
Quick Apply
Subcontract Administrator
General Dynamics Land Systems - Australia —Mawson Lakes SA
- Full-time
- Microsoft Excel
- Management
- ERP systems
Senior Administration Officer
Bolton Clarke —Greater Adelaide SA
- Full-time
- Microsoft Excel
- Management
- Microsoft Office
- Health insurance
- Employee assistance program
Payroll Administrator
Journey Beyond —Adelaide SA
- Full-time
- Hybrid work
- Data entry
- Resort
- Parental leave
- Employee assistance program
Quick Apply
9d
Senior Risk & Assurance Advisor-SA
Gallagher Bassett —Adelaide SA
- Hybrid work
- Research
- Analysis skills
- Bachelor's degree
- Employee stock purchase plan
- Health insurance
14d
Sr. CRA (Level II)
Thermo Fisher Scientific —Greater Adelaide SA
- Full-time
- Laboratory
- Microsoft Excel
- Patient monitoring
- Parental leave
- Employee assistance program

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Senior Contract Administrator
Hansen Yuncken —Greater Adelaide SA
Come join our SA team! Proudly Australian and privately owned for over 105 years, Hansen Yuncken is a national construction company that works across a…
1d
Contract Administrator
ASC Pty Ltd —Osborne SA
Minimum two years of experience in a contract administration, commercial or similar role, supporting contract management activities and documentation.

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Senior System Administrator

Leader Computers
Adelaide SA

Apply Now

Job Details

Qualifications

Computer Science
SQL
Bachelor's degree
VMWare
AI
Communication skills
Information Technology

Full Job Description

Join one of Australia’s fastest-growing and most respected IT distributors

We’re on the hunt for an exceptional Senior System Administrator to join our team at Leader, a company that lives and breathes high performance, legendary customer service, and cutting-edge technology. As a mission-critical team member, you will be empowered to drive efficiency, innovation, and uptime across our internal systems and infrastructure.

Leader is Australia’s largest privately owned IT distributor. We are proudly SA company with headquarters in Franklin St, Adelaide.

This is not your average IT job. You’ll be responsible for maintaining and upgrading our computer systems and networks, ensuring their optimal performance. This includes installing server hardware and software, monitoring connectivity, and providing technical support to employees. You will also lead projects for AI, cybersecurity, automation, and cloud infrastructure—with one clear mission: to make our systems the fastest and most reliable in the industry, enabling our people and customers to thrive.

Key Responsibilities:

Own the performance, uptime, and speed of internal systems and websites
Administer and optimise infrastructure: VMWare/Hyper-V, Fortinet, Ubiquiti, Cisco, Veeam
Implement and enforce internal SLA’s, IT ticketing systems, and system monitoring
Design and test fast, reliable backup and disaster recovery systems
Lead AI/ML & automation projects to improve operations (Power Automate, AI Sales Coach)
Drive cyber security initiatives including testing, phishing prevention & pen testing
Collaborate closely with our Head of Development and product teams on major tech projects
Champion Microsoft certifications and continuous improvement
Communicate clearly, respectfully, and positively with all team members

Qualifications/Experience:

Proven experience as a System Administrator or Network Administrator
Bachelor’s degree in Computer Science, Information Technology, or a related field is preferred
Strong knowledge of computer systems, networks, and security protocols
VMWare \ Hyper V knowledge
Fortinet experience
Ubiquiti and Cisco switching experience
Veeam backups experience
Excellent problem-solving and troubleshooting skills
Ability to work independently and as part of a team
Strong communication and interpersonal skills
SQL experience would be advantage
Sophos & 3CX experience would be advantage
AI experience would be an advantage

Characteristics:

Hard working and commitment to work to our team & customer requirements
Strong written and verbal communication skills needed to interact with team and partners.
Well organized with the ability to multitask and handle pressure situations.
Team player with ability to work independently and learn quickly.
Ability to work proficiently with minimal daily guidance.
Excellent troubleshooting skills.
Individuals focused on personal development.

You’ll Thrive Here If You…

Believe in legendary customer service and ultra-fast execution
Value discipline, integrity, and accountability
Want to be part of a winning team where A Players support and challenge each other

Are committed to continuous improvement, personally and professionally

Apply Now

Refine Your Search

senior systems administrator jobs in south australia

Senior System Administrator

Contract Administrator

Senior Finance Administrator

Senior Contracts Administrator

Senior Linux System Administrator - Support Engineer (with High Performance Computing Focus)

Database Administrator (DBA)

Subcontract Administrator

Senior Administration Officer

Payroll Administrator

Senior Risk & Assurance Advisor-SA

Sr. CRA (Level II)

More jobs to discover

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