Senior Linux Infrastructure Engineer

2 days ago

Sydney, New South Wales, Australia Mackay Executive Pty Ltd Full time $80,000 - $120,000 per year

General:

This is a contract role with a very high profile Federal Government agency.

This role will prove to be both interesting and rewarding to the successful applicant.

Security level - mandatory: minimum federal Baseline security clearance required.

Location – Sydney CBD office.

WFH – generally, 2 days in office / 3 days WFH each week.

Start – estimated: mid to late November 2025.

Initial contract duration – 12 months.

Extension expected – 12 months.

The Role:

This Linux Engineer role will be part of the Technology and Platform Solutions Team.  It is for a Linux Engineer who is very experienced, and able toimplement, manage and retire the infrastructure (including physical, virtual, networking and cloud infrastructure) that supports digital services.  So, key things are to ensure the server environment is secure, stable and effectively maintained.

Key duties:

  • Run and maintain the client's core IT services, upon which all other IT services are based.  This includes data centres, servers, virtualization, operating systems, storage, backup, time, logging, email, domain name resolution, web proxying and security.
  • Securely manage client's connections to/from the internet and other government networks.
  • Perform daily security monitoring and risk mitigations across the client's IT environment.

You will be part of a technical team that has the responsibility for the design, implementation, maintenance and security of:

  • All of the Linux hosts (approx primarily Ubuntu, with some RHEL.

  • Base infrastructure services consumed by other IT teams, such as:

  • Virtualisation (VMware),

  • Block and file storage (Pure Storage),
  • Backup (Cohesity) and
  • Index/search (Splunk).

  • Core applications relied on, such as:

  • DNS (BIND),

  • NTP,
  • SMTP (Postfix),
  • Web proxying (Squid and Forcepoint/Websense), and
  • RSA SecurID.

You will be working in a secure on-premise environment, and work will include working on business driven and internally driven projects.

You will be responsible for the complete end-to-end process that can include: infrastructure design, procurement, racking, and then all the way through to service delivery.

You also will work closely with other technical teams (Development, Platforms, Networks, Windows, Service Desk) to identify and resolve issues and escalations.

Technical skills:

Essential

  • Extensive experience managing a large fleet of Linux hosts (in a team environment).
  • Providing organisation-wide base infrastructure and core services.
  • Demonstrable Ansible (or similar tool) automation skills for infrastructure deployment & management.
  • Experience in problem solving, troubleshooting, documentation & root cause analysis.

Desirable

  • A deep understanding of Linux, including networking, package mgt, auditd, SElinux/AppArmor, TLS, PKI, and IPTABLES/NFTABLES.
  • Experience in implementing the ACSC's Essential Eight in a Linux environment.

Admin:

This role will remain live on Seek until COB Wednesday 29 October, however, do not delay applying if you have the minimum Federal security clearance, and have the requisite skills and experience, as we will be reviewing resumes as they come in, and progressively contacting appropriate candidates by phone.

  • Senior Linux Engineer

    2 days ago

    Sydney, New South Wales, Australia Australian Government Bureau of Meteorology Full time $115,443 - $125,000 per year

    Executive Level 1, Ongoing$115,443 - $125, % superAdelaide, Brisbane, Canberra, Darwin, Hobart, Melbourne, Perth, SydneyThis position is in the Data and Digital Group (Service & Infrastructure Management Program, Infrastructure Services Section). We are looking for a Senior Linux Engineer to support scientific and research environments along with our mission...

  • Linux Engineer

    1 week ago

    Sydney, New South Wales, Australia Mode Talent Group Australia Full time $120,000 - $200,000 per year

    Linux Engineer | Blockchain InfrastructureSydney CBD or Singapore-based - relocation and sponsorship available5 Days a week in the officeCompensation: Base Plus Discretionary Bonus - No caps*You'll need to be an expert in low-level optimisation; this is not a Linux admin role.What you'll do:You will design, build, and maintain a highly reliable,...

  • Linux Engineer

    4 days ago

    Sydney, New South Wales, Australia FinXL Full time $120,000 - $140,000 per year

    Job detailsPosted28 September 2025SalaryNegotiableLocationSydneyJob type ContractDiscipline Cloud & InfrastructureReference90M0679287_ Job descriptionLinux Engineer / AdministratorLeading government agency (consulting through FinXL)FinXL Professional Services is a leading IT consultancy that partners with clients to bridge the gap between business needs and...

  • Linux Engineer

    4 days ago

    Sydney, New South Wales, Australia FinXL IT Professional Services Full time $120,000 - $180,000 per year

    Linux Engineer / AdministratorLeading government agency (consulting through FinXL)FinXL Professional Services is a leading IT consultancy that partners with clients to bridge the gap between business needs and technology capabilities. Since 2003, we've been delivering high-value ICT services across government, finance, telecommunications, and enterprise...

  • Senior Linux/Perl Engineer

    2 weeks ago

    Sydney, New South Wales, Australia luvo Talent Full time $120,000 - $180,000 per year

    Daily rate, 6 month contractJoin a busy team for a global playerImmediate roleWe're on the lookout for aSenior Linux/Perl Engineerto join an enterprise environment supporting mission-criticalISE applications. You'll be diving intolegacy Perl code, adding new features, improving performance, and automating infrastructure operations — all while ensuring...

  • Linux Engineer

    2 weeks ago

    Sydney, New South Wales, Australia AC3 Pty Limited Full time $90,000 - $120,000 per year

    The Opportunity At AC3, we don't just run infrastructure, we humanise technology. Our mission is to cut through complexity and deliver real outcomes that empower Australia's most critical organisations. We're growing our Site Reliability team and looking for a Linux (RHEL) Systems Administrator who wants to do more than just keep the lights on. If you're...

  • Infrastructure Engineer

    2 days ago

    Sydney, New South Wales, Australia TheDriveGroup Full time $120,000 - $180,000 per year

    We're looking for a Senior Infrastructure Engineer with extensive experience running Kubernetes at scale to join the team as they build out a market-first K8s cluster running on top of globally distributed data centers.  This rapidly growing organization is at the forefront of developing technologies to counter the increasing use of drones for nefarious...

  • Infrastructure Engineer

    4 days ago

    Sydney, New South Wales, Australia DroneShield Full time $120,000 - $180,000 per year

    Work with cutting edge technology, making the world a safer and more secure place. DroneShield (ASX:DRO) offers an opportunity to solve some of the world's most challenging technical problems in Electronic Warfare, Artificial Intelligence and Machine Learning, RF sensing, Sensor Fusion and distributed systems. Working with high profile customers across...

  • Senior Infrastructure Architect

    4 days ago

    Sydney, New South Wales, Australia CareCone Group Full time $120,000 - $180,000 per year

    Hiring forSenior Infrastructure Architect.Location- SydneyPosition- PermanentExperience-10+ yearsDescriptionInfra Architect – Sydney – Senior roleBanking experience preferredDesign and implement scalable, secure, and resilient infrastructure solutions across Microsoft technologies , Linux , Windows , and Azure .Develop hybrid architecture strategies and...

  • SRE Linux Engineer

    2 weeks ago

    Sydney, New South Wales, Australia AC3 Full time $100,000 - $150,000 per year

    Level up your Linux career. Own RHEL, automation & security with AC3 where Australia's critical platforms stay online 24/7$125-$135,000 Base + Super + BonusVoted #4 Best Company to Work ForInterviewing NowThe OpportunityAt AC3, we don't just run infrastructure, we humanise technology. Our mission is to cut through complexity and deliver real outcomes that...