Senior DevOps Engineer - Operations

Senior DevOps Engineer - Operations Job Description Exceptional Senior DevOps Engineer - Operations required for our Managed Service Platform, focusing on AWS and Cloud infrastructure. This isn’t your traditional break/fix support desk. You will be leading a high-performing team of platform engineers dedicated to maintaining, securing, and religiously optimizing cloud platforms. As a Senior DevOps Engineer - Operations, you will own the complete lifecycle of medium-to-large platform components — from design through to continuous improvement. You'll balance operational excellence with deep technical strategy, acting as a trusted advisor and technical leader. Your work goes beyond reactive support: you proactively prevent technical debt, drive cost optimization, automate manual toil, and apply ITIL best practices to ensure consistent, high-quality outcomes. You'll work cross-platform (not domain-siloed), collaborate closely with networking, security, application, and DevOps teams, and lead vendor escalations when needed. If you are passionate about DevOps culture, continuous improvement, and delivering world-class infrastructure reliability, this role is for you. What you’ll do · Lead the day-to-day operation, maintenance, and performance of complex AWS cloud environments. · Act as the primary escalation point for platform issues, driving rapid incident response and resolution. · Manage identity and access controls, ensuring secure provisioning and adherence to least-privilege principles. · Drive continuous optimisation initiatives to improve platform performance, reliability, security, and efficiency. · Identify and implement cloud cost optimisation strategies, leveraging FinOps best practices to maximise value. · Review and evolve cloud architectures using the AWS Well-Architected Framework, delivering modernisation and scalability improvements. · Oversee platform lifecycle management, including upgrades, patching, and security governance with minimal disruption. · Lead, mentor, and develop a high-performing cloud engineering team while building trusted client relationships and delivering exceptional customer outcomes. Ideally you’ll have · Extensive hands-on experience designing, managing, and optimising AWS cloud environments at scale. · Strong knowledge of Infrastructure as Code (IaC), developer experience best practices, and FinOps principles. · Solid understanding of cloud networking, security, governance, and compliance frameworks. · A proactive, outcomes-focused mindset with a passion for continuous improvement and operational excellence. · Proven experience leading, mentoring, or managing technical teams within Cloud, DevOps, Operations, or Managed Services environments. · Exceptional communication and stakeholder management skills, with the ability to translate complex technical concepts for diverse audiences. · Strong troubleshooting, incident management, and problem-solving capabilities, with the ability to perform effectively under pressure. · AWS certifications such as AWS Certified Solutions Architect Professional or DevOps Engineer Professional will be highly regarded. What’s in it for you Working at CoStar Group means you'll enjoy a culture of collaboration and innovation that attracts the best and brightest across a broad range of disciplines. We offer you generous compensation and performance-based incentives. As well as having an outstanding working environment, other perks include extra days of annual leave, leadership development programs, LinkedIn Learning, Perkbox discounts and much more! At CoStar, we recognise the positive value of diversity and promote equality. We aim at all times to recruit the person who is most suited to the job and welcome applications from people of all backgrounds including but not limited to; people of all genders, of all ages, sexual orientations, ethnicities, nationalities, religions and beliefs. About Domain (part of the CoStar Group) Domain is a leading property technology and services marketplace that is home to one of the largest portfolios of property brands in Australia, including the Domain, Allhomes and Commercial Real Estate (CRE) platforms. In 2025, Domain became part of CoStar Group - a global leader in commercial real estate information, analytics, online marketplaces and 3D digital twin technology. We are dedicated to digitising the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. Equity, Diversity & Inclusion Domain is enthusiastically and unapologetically committed to fostering an equitable, inclusive work culture which reflects our customers and communities. We are proactively looking for candidates from all lived experiences, including people with disability, and people of all ages, ethnicities, cultures (including Aboriginal and Torres Strait Islander Peoples), faiths, sexual orientations, and gender identities (including trans and non-binary people). We are committed to providing an equitable recruitment process for people with disability. If you require adjustments during the process we’re here to support. If you wish to receive this job advertisement in an accessible format, or have a confidential chat about workplace adjustments, please contact our Equity, Diversity and Inclusion team at or leave a message on 1300 858 356 and we will get back to you. What’s Next? We’ll give your application the thoughtful attention it deserves and get back to you as soon as possible. If there’s a match, one of our recruitment consultants will reach out—so keep your phone handy! We’re genuinely excited about the chance to work together and make a meaningful impact. CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing