Senior Systems Engineer

Chemist Warehouse; City of Melbourne; Hybrid; AUD 140,000 - 190,000; Full time

Benefits offered by this job

Work from home 1 day/week

Paid parental leave (6 weeks primary,

Shuttle bus

Employee discounts

Job summary

Sigma Healthcare is seeking a Senior Infrastructure Engineer to design, operate and optimise enterprise infrastructure platforms across cloud and on‑prem environments from the Preston area. You will provide technical direction, improve resilience and drive robust processes while enabling cost‑effective solutions.

Based at the Preston Support Office, you will mentor engineers, lead complex incidents and ensure alignment with security standards.

Qualifications

• A degree in Computer Engineering or equivalent qualification.
• At least seven years of experience in systems engineering or a related field, with healthcare industry experience.
• Extensive knowledge of Active Directory, Exchange, Microsoft 365, Windows and Linux Server OS, and core services.
• Experience with identity and access management platforms such as Microsoft Entra.
• Strong organisational, planning and time management skills.
• Attention to detail, communication skills, and proficiency with Microsoft Office.
• Collaborative and adaptable with initiative and ability to work under pressure.
• Experience in IT engineering teams and delivering projects in large organisations is highly regarded.
• Advanced Excel and SharePoint experience are highly regarded.

Responsibilities

• Collaborate with project teams to plan, design and implement infrastructure systems across cloud and on-premises platforms.
• Monitor core infrastructure and Microsoft platforms to maintain high availability and performance.
• Maintain, test and improve high-availability and disaster recovery capabilities.
• Design scalable, secure and cost-effective infrastructure aligned with priorities.
• Provide technical leadership across infrastructure platforms and technologies.
• Lead investigation and resolution of complex infrastructure incidents.
• Drive automation in provisioning, configuration, monitoring and patching.
• Manage platform lifecycles, upgrades, capacity planning and tech refresh.
• Assess compliance with security policies and regulatory requirements.
• Mentor engineers and promote knowledge sharing and best practices.

Skills

Active Directory

Microsoft Exchange

Microsoft 365

Windows Server

Linux Server

Identity and Access Management

Organization & Planning

Communication

IT project delivery in large orgs

Education

Computer Engineering

Equivalent qualification

Tools

SharePoint

Microsoft Entra

Job description

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Our Infrastructure Services team sits within Infrastructure & Cloud Services and is part of a technology department of more than 50 specialised engineers and technical experts. Together, the team builds, manages and optimises the core infrastructure technologies that support Sigma Healthcare’s operations and evolving business needs.

About the Role

Based at our Preston Support Office and reporting to the Infrastructure Systems & Platforms Team Lead, you will build, operate and contribute to the design of enterprise-wide infrastructure platforms and systems. You will provide technical direction, improve the resilience and security of critical services, and drive robust processes and continuous optimisation across cloud and on-premises environments.

Role Responsibilities

• Collaborate with project teams to plan, design and implement infrastructure systems, solutions and tooling across cloud and on-premises platforms.
• Monitor core infrastructure and Microsoft platforms to maintain high availability, reliability and performance.
• Maintain, test and continually improve high-availability and disaster recovery capabilities.
• Design scalable, resilient, secure and cost-effective infrastructure solutions aligned with business and technology priorities.
• Provide technical leadership and subject matter expertise across infrastructure platforms, systems and associated technologies.
• Lead investigation, troubleshooting and resolution of complex infrastructure incidents and service degradation.
• Drive automation and continuous improvement in provisioning, configuration, monitoring, patching and operational processes.
• Manage platform lifecycles, including upgrades, patching, capacity planning, performance optimisation and technology refresh.
• Assess compliance with organisational policies, security standards and regulatory requirements, and address identified gaps.
• Mentor fellow engineers and encourage knowledge sharing, consistent practices and technical excellence.

Who are we looking for?

• A degree in Computer Engineering or equivalent qualification.
• At least seven years of experience in systems engineering or a related field, together with professional experience in the healthcare industry.
• Extensive knowledge of Active Directory, Microsoft Exchange and messaging services, Microsoft 365, Windows and Linux Server operating systems and Microsoft core services.
• Experience with identity and access management platforms such as Microsoft Entra.
• Strong organisational, planning and time management skills, with the ability to manage competing priorities.
• Excellent attention to detail, written and verbal communication skills, and proficiency with Microsoft Office.
• A collaborative, adaptable approach, with initiative, willingness to learn and the ability to remain calm under pressure.
• Experience working in IT engineering teams and delivering projects in large organisations is highly regarded.
• Advanced Excel skills, financial acumen and SharePoint experience are highly regarded.
• A current driver’s licence and willingness to travel between sites as required; a National Police Check is required for new team members.

Why Join Us?

Grow your career with purpose – Access a wide range of learning and development programs, including our internally designed leadership pathway to support your long‑term growth. Be part of a purpose-driven organisation making a difference in healthcare, working with a collaborative and supportive team.

Be rewarded for your impact – Enjoy annual salary reviews linked to your performance, recognising the value you bring to the team.

Flexibility that works – Work from home one day per week, while staying connected with your team at our vibrant Preston Support Office four days a week. We’re committed to supporting our people through life’s important moments. Alongside our formal flexibility policies, we recognise that some circumstances, such as returning from parental leave or managing personal wellbeing may require additional consideration. In these situations, we work collaboratively on case‑by‑case arrangements to provide the support needed while balancing the requirements of the role and team.

Paid parental leave – We support growing families with six weeks of paid parental leave for primary carers and one week of paid parental leave for secondary carers.

Exclusive savings – Access generous employee discounts across a wide range of products with our partnership with Flare, including company‑wide corporate offers on healthcare premiums with Bupa Healthcare, banking benefits with Comm Bank and novated leasing.

Support when you need it – Tap into confidential Employee Assistance Program (EAP) services for personal or professional support.

Easy commuting – Enjoy our complimentary shuttle bus connecting nearby train stations to the Preston Support Office, making public transport travel simple and stress‑free.

About Us

Sigma Healthcare is powering pharmacy! We have the largest pharmacy network in Australia with trusted brands including Chemist Warehouse, Amcal, Discount Drug Stores and Ultra Beauty! We are powered by our dedicated people and our leading Australian full line pharmacy wholesale and distribution business that delivers medicines to any pharmacy anywhere in Australia. With Chemist Warehouse now operating in four countries outside Australia, we continue to expand our reach.

Sigma Healthcare is an equal opportunity employer and is committed to fostering a diverse, inclusive, and respectful workplace where everyone can thrive. We welcome applications from people of all backgrounds and experiences and encourage you to apply, even if you don't meet every requirement listed.