Senior Infrastructure Engineer

Darumatic Cloud Native; Canberra; Hybrid; AUD 140,000 - 190,000; Full time

Job summary

Darumatic is seeking an experienced Senior Database Administrator / Infrastructure Engineer (EL1 equivalent) to provide expert support across SQL Server, Db2 z/OS, Db2 Midrange, and MongoDB. Immediate focus on MongoDB upgrade/migration, with collaboration across APS teams to ensure service continuity and data integrity.

Role involves planning, validation and controlled implementation of upgrades, plus occasional out-of-hours work to resolve incidents.

Qualifications

• Expert-level database administration across MS SQL Server, Db2 z/OS and Db2 Midrange in enterprise setups.
• MongoDB administration including replication, backup/recovery and performance tuning.

Responsibilities

• Provide specialist database administration across SQL Server, Db2 z/OS, Db2 Midrange and MongoDB.
• Lead upgrades, migrations and optimisations with focus on MongoDB upgrade/migration.
• Assess environments for upgrade/compatibility risks and performance issues.
• Ensure data consistency, availability and security during all activities.
• Support database work in containerised environments and advise on risk mitigation.
• Collaborate with APS teams to plan, test and implement upgrades while maintaining service continuity.
• Document all changes, steps and risks; produce thorough technical notes.

Skills

SQL Server

Db2 z/OS

Db2 Midrange

MongoDB

Performance tuning

Data integrity

Containerised environments

NV1 clearance

Tools

Docker

Kubernetes

Job description

Location

Hybrid – QLD, ACT, VIC, SA (Routine attendance at the client's office in either Canberra, Adelaide, Brisbane, or Melbourne. Candidates outside these locations and surrounds will not be considered)

Remote work available?

Yes (Working from home arrangements may be considered, provided the candidate's residing address is within reasonable travel time and distance to present onsite in cases of emergency or business requirements)

Rate

Great rate on offer for a suitable candidate

Contract Length

Initial 12-month contract (starting 01 January 2027), with extension options available (up to a maximum of 24 further months)

About Us

Darumatic is an IT Consultancy and Recruitment Services Company that focuses on cloud native technologies and software development. Our mission is to help clients "Build better software". We are passionate about working with clients to transform their development and infrastructure teams to become cloud native. Our supportive culture will open up a variety of opportunities for you to develop your knowledge and skills whilst providing opportunities to connect with a range of IT professional networks. We believe in mutually beneficial professional working relationships, and your employment with us is no exception.

About The Role

Our client is seeking an experienced Senior Database Administrator / Infrastructure Engineer (EL1 equivalent) to provide expert technical support across SQL Server, Db2 z/OS, Db2 Midrange, and MongoDB database platforms. With an immediate focus on critical MongoDB upgrade and migration activities, this role will support the planning, validation, and controlled implementation of upgrades to current supported database versions.

Working collaboratively with APS technical teams, you will optimize database performance, assure data consistency, resolve complex issues, and mitigate risks to support platform resilience.

Note: Out-of-hours work may occasionally be required to complete scheduled activities or resolve complex incidents.

Key Responsibilities

• Provide specialist database administration expertise across SQL Server, Db2 z/OS, Db2 Midrange, and MongoDB platforms.
• Lead and support version upgrade, migration, and optimization activities, with an immediate focus on a critical MongoDB upgrade and migration requirement.
• Assess current database environments to identify upgrade, compatibility, migration, performance, and operational risks.
• Optimize database performance and support the remediation of identified issues across all relevant enterprise platforms.
• Ensure data consistency, integrity, and availability throughout all upgrade, migration, and support activities.
• Support database activities in containerised environments and advise on associated risk mitigation strategies.
• Work collaboratively with APS technical teams to plan, test, and implement upgrade and migration activities while maintaining service continuity.
• Document all work undertaken comprehensively, including configuration changes, upgrade steps, risks, issues, and lessons learned.
• Facilitate knowledge transfer and skills uplift for internal APS staff through blended delivery and targeted technical documentation.

Skills & Experience

• Database Administration Expertise: Demonstrated expert-level administration capability across Microsoft SQL Server, IBM Db2 z/OS, and IBM Db2 Midrange, covering performance tuning, backup/recovery, high availability, data integrity, security, and operational support in enterprise environments.
• MongoDB Mastery: Demonstrated expert-level MongoDB administration capability, including replication, backup and recovery, performance tuning, and data consistency controls.
• Upgrades & Migrations: Proven ability to plan, validate, and implement controlled database upgrades and migrations while maintaining service continuity, data integrity, and availability.
• Containerised Environments: Strong experience supporting MongoDB and other database platforms in containerised environments, including identifying and managing platform, deployment, and operational risks.

Desirable Experience

• Strong background working in complex government or enterprise ICT environments. Experience contributing to knowledge transfer, technical documentation, and skills upliftse for internal teams is highly regarded.

Must-Haves

• Must hold or be able to readily obtain and maintain a Negative Vetting Level 1 (NV1) Security Clearance before commencement. Candidates must be willing to work at one of the nominated RFQ locations for the duration of the contract.

Application Requirement

• Candidates must provide a concise, one-page pitch (maximum 5000 characters) explicitly addressing the criteria specified above. Submissions must also include two referee contacts (from within the last 4 years) and details of any previous work history.