In-Demand Linux systems administrator Jobs

Database Administrator (DBA)
Info Techno Digital Services —Sydney NSW
- $7,354.35 - $10,302.15 a month
- Full-time
- Azure
- Computer Science
- Databases
- Health insurance
- Dental insurance
Quick Apply
Senior Systems Administrator
Light & Wonder —Silverwater NSW
- Full-time
- Hybrid work
- Azure
- Management
- Computer Science
- Parental leave
11d
Splunk Data Administrator
Delivery Centric Technologies —Melbourne VIC
- Full-time
- Azure
- DevOps
- Administrative experience
Quick Apply
Senior Systems Administrator x 2 roles
NTT —Sydney NSW
- Contract
Quick Apply
3d
Technical Implementation & Support Engineer (APAC)
Nicolab —Melbourne VIC
- Part-time
- Remote
- Management
- Education
- Bachelor's degree
- Annual leave
- Referral program
Quick Apply
1d
Senior Systems Administrator (Australia) - TS/SCI with Polygraph
General Dynamics Information Technology —Alice Springs NT
- $97,750 - $132,250 a year
- Contract
- Microsoft Word
- Microsoft Excel
- Microsoft Outlook
- Annual leave
IT Administrator
IREN —Sydney NSW
- Full-time
- Management
- Computer Science
- Administrative experience
- Annual leave
System Administrators TSPV
Leidos —Melbourne VIC
- Full-time
- Management
- Databases
- Administrative experience
- Annual leave
Azure Systems Administrator
Smart Communications —Sydney NSW
- Azure
- DevOps
- AWS
- Gym membership
System Administrator
Employment Hero —Sydney NSW
- $20,000 - $25,000 a month
- Full-time
- Azure
- Computer Science
- Administrative experience
14h
Analyst II, Systems Operations
Intercontinental Exchange Holdings, Inc. —Southbank VIC
- Full-time
- Microsoft Office
- Analysis skills
- Bachelor's degree
EMu Database Support Officer
Australian Museum —Sydney NSW
- $99,938 - $125,157 a year
- Full-time
- Management
- Administrative experience
- No degree
20h
Senior Systems Administrator (OpenShift/Kubernetes SME)
NSW Police Force —Parramatta NSW
- $149,739 - $156,088 a year
- Full-time
- Administrative experience
- Scripting
- AI
2d
Deployment Engineer
Cellebrite —Remote
- Full-time
- Remote
- Laboratory
- Azure
- DevOps
Quick Apply
System Administrator
ARB Corporation —Kilsyth VIC
- Full-time
- Azure
- Administrative experience
- Employee discount
13d
PostgreSQL Database Administrator
Darumatic —Sydney NSW
- Contract
- Remote
- Management
- Databases
- Administrative experience
Infrastructure Engineer
Centorrino Technologies —Canberra ACT
- Hybrid work
Quick Apply
Senior Linux System Administrator - Support Engineer (with High Performance Computing Focus)
Hewlett Packard Enterprise —Canberra ACT
- Full-time
- Computer Science
- Analysis skills
- Bachelor's degree
IT Support Administrator - 0.5 FTE
FrankieOne —Melbourne VIC
- Part-time
- Hybrid work
- Management
- Sales
- Administrative experience
Systems Engineer (Enterprise) - Brisbane
Fortinet —Brisbane QLD
- Full-time
- Azure
- AWS
- Presentation skills

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Database Administrator (DBA)

Info Techno Digital Services
Sydney NSW

Quick Apply

Job Details

Permanent | Full-time
$7,354.35 - $10,302.15 a month

Benefits

Health insurance
Unlimited annual leave
Dental insurance
Annual leave
Salary packaging

Qualifications

CI/CD
Authentication
Performance tuning
Data modelling
Azure
Computer Science
Cassandra
AWS Certification
Microsoft SQL Server
NoSQL
MongoDB
Databases
SQL
Database administration
AWS
Education
Bachelor's degree
PostgreSQL
Terrafrom
Redis
Scripting
Redshift
RDS database
MySQL
MariaDB

Full Job Description

Database Administrator (DBA) — Job Description

Overview A Database Administrator (DBA) is responsible for designing, implementing, maintaining, and optimizing an organization’s database systems to ensure data integrity, availability, security, and performance. The DBA collaborates with developers, system administrators, and stakeholders to support applications and business processes that rely on data.

Key Responsibilities

Database design & architecture: design logical and physical schemas, normalize data models, and advise on data partitioning, sharding, and replication strategies.
Installation & configuration: install, configure, upgrade, and patch database servers and related tools (e.g., RDBMS, NoSQL, cloud-managed databases).
Performance tuning: monitor and tune queries, indexes, execution plans, and database configuration to meet SLAs for latency and throughput.
Backup & recovery: implement and test backup, restore, and disaster-recovery procedures; develop RTO/RPO strategies.
High availability & replication: configure and maintain clustering, replication, failover, and load-balancing solutions.
Security & compliance: manage authentication/authorization, encryption (at-rest and in-transit), auditing, and compliance with data protection regulations.
Capacity planning & monitoring: forecast storage/compute needs, monitor growth, and optimize resource allocation and costs.
Maintenance & housekeeping: manage indexing strategies, statistics, vacuuming/cleanup, and scheduled maintenance windows.
Incident response & troubleshooting: diagnose and resolve database incidents, perform root-cause analysis, and implement preventive measures.
Change management & deployments: support schema migrations, rollouts, and rollback plans; coordinate with CI/CD pipelines and application teams.
Documentation & standards: maintain runbooks, run-time diagrams, operational procedures, and database standards/best practices.
Mentoring & knowledge sharing: train developers and other teams on efficient schema design, query patterns, and safe deployment practices.

Required Qualifications

Education: Bachelor’s degree in Computer Science, Information Systems, Engineering, or equivalent experience.
Experience: 3+ years (mid-level) or 6+ years (senior) working as a DBA or in a database-focused role.
Technical skills:
Strong SQL expertise and query optimization.
Experience with one or more RDBMS (e.g., PostgreSQL, MySQL/MariaDB, Microsoft SQL Server, Oracle).
Familiarity with at least one NoSQL system (e.g., MongoDB, Cassandra, Redis) preferred.
Experience with backup/restore, replication, clustering, and performance tuning.
Knowledge of storage, networking basics, and OS-level tuning (Linux/Windows).
Familiarity with cloud-managed databases and services (e.g., AWS RDS/Aurora, Azure SQL, Google Cloud SQL) and IaC tools (Terraform, CloudFormation) preferred.
Experience with monitoring tools (e.g., Prometheus, Grafana, Datadog) and logging.
Soft skills: problem-solving, attention to detail, good communication, ability to collaborate across teams, and incident-handling composure.

Nice-to-Have

Certifications: e.g., Oracle Certified Professional, Microsoft Certified: Azure Database Administrator, AWS Database Specialty, or vendor-specific PostgreSQL/MySQL certs.
Scripting/automation: proficiency in Python, Bash, PowerShell.
Experience with containerized databases and Kubernetes operators for databases.
Familiarity with data analytics, ETL pipelines, and data warehousing (e.g., Snowflake, Redshift, BigQuery).

Pay: $7,354.35 – $10,302.15 per month

Benefits:

Dental insurance
Health insurance
Salary packaging
Unlimited annual leave

Work Location: In person

Quick Apply

Refine Your Search

linux systems administrator jobs

Database Administrator (DBA)

Senior Systems Administrator

Splunk Data Administrator

Senior Systems Administrator x 2 roles

Technical Implementation & Support Engineer (APAC)

Senior Systems Administrator (Australia) - TS/SCI with Polygraph

IT Administrator

System Administrators TSPV

Azure Systems Administrator

System Administrator

Analyst II, Systems Operations

EMu Database Support Officer

Senior Systems Administrator (OpenShift/Kubernetes SME)

Deployment Engineer

System Administrator

PostgreSQL Database Administrator

Infrastructure Engineer

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

IT Support Administrator - 0.5 FTE

Systems Engineer (Enterprise) - Brisbane

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