Systems and Database Administrator

Systems & Database Administrator

DIMIYA Tech is a global Technology and Talent Solutions provider helping organisations accelerate growth through technology, people, and innovation.

Through DIMIYA Tech, we deliver Managed IT Services, Cybersecurity, Cloud Solutions, AI & Automation, Microsoft Dynamics 365, Salesforce, Data & Analytics, and Application Development services.

Through DIMIYA Talent, we provide Technology Staffing, Offshore & Hybrid Teams, ERP & CRM Consultants, AI & Cybersecurity Specialists, and Finance & Business Operations professionals.

We support clients across Australia, New Zealand, the United States, United Kingdom, Europe, and Asia with tailored, scalable solutions.

The Role

We are looking for an experienced and hands-on Systems & Database Administrator to manage, secure, optimise, and support its critical infrastructure, server, cloud, and database environments.

This combined role will be responsible for improving system and database performance, security, availability, governance, monitoring, backup and recovery, while supporting  business applications, reporting platforms, and future data initiatives.

The successful candidate will work closely with the internal IT team, technology partners, application teams, and business stakeholders.

Please note: This position requires full-time presence in AU time 9:00am – 5:00 pm AEST (5 days per week) fully remote

Key Responsibilities

Systems & Infrastructure Administration

• Manage Active Directory, Group Policy, DNS, DHCP, file services, identity services, certificates, and system access.
• Monitor infrastructure availability, performance, capacity, storage, and system health.

Database Administration & Performance

• Administer Microsoft SQL Server, MySQL, MongoDB, and other database technologies.
• Monitor database availability, health, performance, storage, and capacity.
• Perform query optimisation, indexing, execution-plan analysis, performance tuning, and database maintenance.
• Resolve database performance, replication, connectivity, locking, and data-integrity issues.
• Manage database upgrades, patching, migrations, backups, and lifecycle requirements.
• Maintain database inventories, configurations, dependencies, and operational documentation.

Backup, Disaster Recovery & Business Continuity

• Manage and monitor infrastructure and database backups.
• Conduct scheduled restoration testing to confirm data recoverability.
• Maintain recovery procedures and support disaster-recovery and business-continuity testing.
• Assist in maintaining Recovery Time Objectives (RTOs) and Recovery Point Objectives (RPOs).
• Identify single points of failure and recommend resilience and high-availability improvements.

Security, Access & ISO 27001

• Apply security-hardening standards across servers, databases.
• Manage administrative access, service accounts, database permissions, and role-based access controls.
• Support least-privilege access, patch compliance, vulnerability remediation, encryption, logging, and auditing.
• Assist with security incidents, investigations, root-cause analysis, and remediation.
• Maintain technical documentation and evidence supporting ISO 27001 requirements.

Data Governance, Reporting & Business Applications

• Support data-governance standards covering ownership, classification, quality, retention, lifecycle, and secure disposal.
• Identify duplicate, outdated, inconsistent, or poorly governed data.
• Support Salesforce, MLinc, the Data Hub, Power BI, and other enterprise applications and data platforms.
• Improve database performance, data quality, integrations, and reporting reliability.
• Support data migrations, system upgrades, application integrations, analytics, automation, and future AI initiatives.

Monitoring, Automation & Documentation

• Maintain proactive monitoring and alerting across infrastructure, databases, backups, capacity, patching, and system availability.
• Automate administration, maintenance, monitoring, and reporting using PowerShell, SQL, Python, or similar technologies.
• Conduct root-cause analysis and implement long-term solutions for recurring issues.
• Maintain architecture diagrams, system and database documentation, Standard Operating Procedures, and recovery guides.
• Support structured change management, technology audits, risk assessments, and continuous improvement.

Required Skills & Experience



• 5+ years of experience across systems, infrastructure, and database administration.
• Strong experience with Windows Server and Microsoft SQL Server.
• Experience with MySQL, MongoDB, or other enterprise databases.
• Experience with Active Directory, Group Policy, DNS, DHCP, Microsoft 365, Azure, virtualisation, and hybrid infrastructure.
• Strong knowledge of database performance tuning, query optimisation, indexing, backup, recovery, replication, and high availability.
• Experience with infrastructure monitoring, patching, upgrades, migrations, disaster recovery, and business continuity.
• Knowledge of security hardening, access control, vulnerability management, encryption, logging, and auditing.
• Experience with PowerShell, SQL scripting, Python, or other automation technologies.
• Strong troubleshooting, documentation, communication, and stakeholder-management skills.