Senior Site Reliability Engineer, Managed Services

Mantel Group; Sydney; Hybrid; AUD 140,000 - 210,000; Full time

Job summary

Mantel Group is seeking a Senior Site Reliability Engineer to own reliability for managed services across AWS, Azure, and GCP, automating work that shouldn’t require human intervention. You’ll push back on bad architecture, shape AI to respond faster, and help Mantel build repeatable cloud patterns for clients.

You’ll participate in a structured on-call rotation and collaborate with infra experts to improve detection, resolution, and incident response using AI-driven tooling.

Qualifications

• Deep Azure platform engineering experience with IaC.
• Strong governance using Azure Policy (EPAC preferred).
• In-depth knowledge of Private Networking in Azure.
• Experience designing automated deployment pipelines using Git workflows (GitHub/GitLab).
• Hands-on provisioning of core compute workloads, especially Windows Server.
• Scripting & orchestration for resilient platform architectures.
• Proactive client mindset to identify bottlenecks and propose solutions.
• Foundational understanding of Microsoft Entra ID and Intune.
• Customer-first attitude; ability to work in small and large teams.
• Azure focus with AZ-305/AZ-400; multi-cloud exposure a plus.
• Experience with Azure Virtual Desktop, Microsoft 365, Active Directory, Exchange, or on-premises infra is beneficial.

Responsibilities

• Own reliability for managed services across Azure, AWS and GCP.
• Automate repetitive tasks and incident triage to reduce on-call toil.
• Collaborate with infrastructure experts to evolve detection and resolution using AI/automation.
• Provide architectural governance for secure, reliable cloud solutions.
• Help expand the managed services patterns across cloud and database domains.
• Shape AI-driven tooling to accelerate reliability work for clients.
• Build relationships with client technologists to align on feasible solutions.
• Contribute to internal optimisation backlog to improve efficiency.

Job description

Senior Site Reliability Engineer, Managed Services

Mantel is an Australian-owned IT Professional Services consultancy, focused on emerging technology to help advance our clients by leveraging AI, Digital, Cloud, Data & Security technology. We are a fully AI-enabled technology consultancy and the partner that bridges the gap between blue-sky ambition and practical steps to deliver value. Since our inception in November 2017, we have experienced remarkable growth across Australia & New Zealand and are honoured to be recognised as a Great Place to Work for 6 years in a row!

We hire smart and talented people and get out of their way. As a principle-based organisation, we have a flat structure with no hierarchy. By focusing on our five principles and not getting caught up in red tape, we trust you to get the job done!

Cloud

Mantel’s dedicated cloud capability means you will work with passionate people and the latest tech in your cloud of choice. Whether you're helping businesses reach their full potential with Microsoft, executing full transformations on AWS, or leveraging Google Cloud, our deep partnerships mean you'll work on high-profile projects, including AI-accelerated cloud migrations and redeveloping entire applications for our clients using agentic coding.

About the role

As a Senior Site Reliability Engineer, you own reliability for our managed services customers. That means keeping their systems up and secure across AWS, Azure, and GCP while automating the work that shouldn't require a human. You'll push back on bad architecture, shape how we use AI to respond faster, and contribute to the patterns and platforms Mantel builds for customers who face similar problems repeatedly.

Own reliability for managed services customers across Azure, AWS and GCP. Customer environments vary widely in maturity, stack, and compliance constraints.

Participate in a structured on-call rotation (typically every second week, alternating between primary and secondary support). We actively protect your time: pages only trigger when error budgets breach or core services fail, never for warnings, and automated runbooks handle initial triage so you aren't waking up to noise.

Work from defined runbooks for most incidents and diagnostics. Your job is automating the repetitive parts, surfacing problems before they page, and making incident response faster.

Collaborate with our infrastructure experts to evolve how we detect and resolve incidents, leveraging proprietary, next-generation AI and automation platforms.

Provide constructive architectural governance, challenging anti-patterns and guiding clients toward secure, reliable, and maintainable cloud solutions.

Help expand our managed services solutions reliably as we mature cloud, software, and database patterns. You’ll contribute to the core platforms and patterns Mantel offers repeatedly to customers.

Shape how we use AI and automation to accelerate reliability work across our customer base. You’ll help articulate how our AI-driven solutions solve specific client problems.

Build relationships with key technologists on the customer side. You’re not just fixing their incidents, you’re helping them understand what’s possible and what we can do together.

Contribute to our internal optimisation and productivity backlog. You identify where toil exists and drive improvements that benefit all our customers.

What you’ll need to be successful:

• Azure Platform Engineering: Deep experience building, operating, and scaling enterprise Azure environments delivered via Infrastructure as Code.
• Azure Governance: Strong experience in Azure Policy with EPAC (Enterprise Policy as Code) preferred.
• Networking: A deep understanding of Private Networking in Azure.
• CI/CD & Version Control: Experience designing and maintaining automated deployment pipelines using commercial Git workflows (e.g., GitHub, GitLab) to ensure reliable delivery.
• Workload Management: Hands-on expertise provisioning and managing core compute workloads, particularly within Windows Server.
• Scripting & Orchestration: Fluency with scripting and orchestration technologies to build resilient, performant platform architectures.
• Client Engagement: A proactive client mindset - you’ll leave no stone unturned, identify platform bottlenecks early, and propose practical, high-impact solutions that align with the clients needs.
• Identity & Endpoint: A foundational understanding of modern cloud identity and endpoint tools like Microsoft Entra ID and Intune.
• Teamwork & Mindset: A customer first attitude, delivering service with a smile and the ability to work in both small and large teams.
• Cloud Architecture (Azure Focus): Deep expertise managing production workloads in Azure (AZ-305 and AZ-400 preferred). Practical exposure to AWS or GCP is a strong advantage, with full support provided for multi-cloud cross-skilling.
• AI & Emerging Tech: A functional understanding of modern AI advancements, with the curiosity and capability to leverage AI-driven tooling to enhance operational efficiency and reliability.
• Additional Experience: Experience with Azure Virtual Desktop, Microsoft 365, Active Directory, Exchange, or on-premises infrastructure will be highly regarded, though not necessary.

We value diverse skill-sets, and don’t necessarily require that you have all of the above. If you feel you cover roughly 70-80 % of the experiences/skills listed we still encourage you to

What you can expect from us:

• You’ll get all the tools you need to hit the ground running including a new phone, laptop & swag.
• We believe in unique experiences for all. Our My Deal program allows you to tailor your yearly plan, with the support of your Leader, to decide on what’s most important to you. That might be extra professional development, extra annual leave, time to work on your side hustle, or something else completely different! One size does not fit all.
• A true investment in your AI-first career. We are a fully AI-enabled consultancy and provide you with the tools to lead. This includes access to the Mantel AI Gateway, our secure, centralised platform with multiple AI models, plus a dedicated monthly budget and a safe environment to experiment and innovate.
• You’ll be genuinely supported by an organisation that cares about not only you but your family as well, Mantel offers Flexible Personal Leave options for those unplanned moments in life.
• We support a flexible hybrid approach to working which is guided by our principles; we trust each other to "make good choices" about the best workplace locations for the requirements of the project, role and client. This can change based on our client needs.
• We know you won’t have one job for life. At Mantel, we believe in supporting our team to take their career in a direction that aligns with their passions. We have internal opportunities across Cloud, Data, Digital, Delivery & Security.
• Our elite partnerships are a direct result of our deep platform mastery. For you, this means you'll be working alongside teams with the highest levels of technical expertise and tackling the most complex, high-profile projects on the market. Check out our partner awards and recognitions here.

Mantel is a certified Family Inclusive Workplace, which means we are committed to improving your wellbeing at work through leading practices on flexible work, parental leave, family care and family wellbeing

We value a diverse workplace and strongly encourage people from all backgrounds and minority groups to apply.