Civil Engineer - Defence Infrastructure

Join AECOM as a Civil Engineer specializing in Defence Infrastructure. In this role, you will have the opportunity to work on significant projects that enhance national security and infrastructural development. Your expertise will contribute to the planning, design, and implementation of innovative solutions that meet the demands of our clients.

AECOM seeks a Principal Civil Engineer in Sydney to lead infrastructure design and delivery. This senior role centers on managing diverse projects, ensuring engineering solutions meet both technical standards and client needs. Key responsibilities Direct the design and implementation of infrastructure projects in transportation, urban development, and environmental management. Lead multidisciplinary teams, providing guidance to address complex engineering problems with practical solutions. Uphold quality across all technical deliverables, making sure outputs align with project goals and client expectations. Mentor junior engineers, supporting their growth and strengthening the team’s capabilities. Role impact This position offers the opportunity to shape infrastructure across Sydney, contributing to projects that influence communities throughout the region.

Join AECOM, a global leader in engineering and infrastructure, as we explore defence opportunities in Australia. We are committed to delivering innovative solutions that enhance the safety and security of our communities. As part of our team, you will work on high-impact projects and collaborate with industry experts to drive progress in defence initiatives.

Join AECOM as a Principal Mechanical Engineer specializing in Defence projects. In this pivotal role, you will be responsible for leading the design and implementation of innovative mechanical systems that meet the strategic needs of our defence clients. Your expertise will guide project teams, ensure compliance with regulatory standards, and drive the successful delivery of high-quality engineering solutions.As a key member of our team, you will collaborate closely with multidisciplinary teams, stakeholders, and clients to deliver projects on time and within budget. You will also mentor junior engineers, fostering a culture of continuous improvement and excellence.

Join AECOM as a Senior Hydraulic Engineer specializing in the defence sector. In this pivotal role, you will lead hydraulic engineering projects, ensuring compliance with industry standards and client specifications. Your expertise will directly contribute to the successful delivery of innovative solutions that enhance operational efficiency and safety.

Join AECOM as a Principal / Senior Electrical Engineer in the Defence sector, where you will play a pivotal role in shaping critical projects. This position offers the opportunity to lead innovative electrical engineering solutions for defence applications. You will be responsible for designing, implementing, and overseeing a variety of electrical systems, ensuring compliance with industry standards and regulations. Collaborate with multidisciplinary teams, mentor junior engineers, and contribute to the strategic development of projects that make a real impact.

Join our dynamic Building Engineering team as a Principal Structural Engineer specializing in Defence Projects. We are experiencing continued growth and are seeking a highly skilled professional to make a significant impact. While we prefer candidates based in Adelaide, we welcome applications from Sydney, Melbourne, or Brisbane.Your Role:Serve as a Senior technical resource, offering expert advice to the wider team. Leverage your expertise in key building components such as stability design, basements, and structural steel framing, while leading the design of cost-effective post-tensioned concrete floors.Utilize your experience with various construction materials to effectively collaborate with clients, architects, and builders throughout the design and construction phases of significant projects.Oversee and refine design and delivery processes, ensuring high-quality, cost-efficient outcomes from the team.Apply your technical knowledge to conduct quality control reviews of design calculations and drawings, while preparing detailed technical specifications.Collaborate within a multi-disciplinary engineering team to review project deliverables and contribute to the development of engineering budgets and schedules that align with project objectives.

Join our dynamic team at AECOM as a Senior Mechanical Engineer specializing in the defence sector. In this pivotal role, you will be responsible for designing and implementing cutting-edge mechanical solutions that meet the rigorous demands of defence projects. Collaborate with multidisciplinary teams and contribute to innovative engineering solutions that enhance our capabilities in the defence industry.

AECOM is seeking a talented Design Manager to lead innovative defence projects in Sydney. In this pivotal role, you will oversee the design process, ensuring that our projects meet the highest standards of quality and efficiency. You will work collaboratively with a team of engineers and architects, managing timelines and budgets to deliver exceptional results.

Join AECOM, a global leader in engineering and infrastructure, as we seek passionate individuals to explore exciting defence opportunities in Sydney. Our team is dedicated to delivering innovative solutions that make a lasting impact on communities and the environment.

Join Centorrino Technologies: Innovate, Grow, and Thrive with Us!At Centorrino Technologies (CT), we’re more than just tech—we’re a community that goes beyond expectations. Recognized as a Great Place to Work for 2024-2025 and one of Australia’s Best Places to Work for Medium & Large Size companies in 2025, our outstanding eNPS score of 68 reflects our commitment to our team. We're on a mission to redefine customer experience and are looking for a dedicated Business Analyst to join our vibrant team in Australia.The Business Analyst will spearhead and execute business analysis activities by gathering, analyzing, and translating stakeholder requirements into tailored solutions that enhance portfolio, program, and project management outcomes while aligning with organizational P3M frameworks and governance models.

Join AECOM as a Principal/Director of Environmental Impact Assessment specializing in Defence projects. We are seeking a visionary leader to guide our team in delivering cutting-edge environmental assessments that meet the unique challenges of the Defence sector. This role requires a deep understanding of environmental regulations and the ability to navigate complex stakeholder environments.The successful candidate will be responsible for overseeing project teams, ensuring compliance with environmental legislation, and fostering relationships with both clients and regulatory agencies. You will play a crucial role in shaping sustainable practices within the Defence industry.

As a result of the ongoing expansion of our aviation division in Sydney and an increasing portfolio of airport infrastructure projects throughout New South Wales and the broader ANZ region, we are seeking a talented Principal Civil Engineer specializing in Aviation Pavements. This pivotal role will help shape our expanding capabilities and lead our technical teams.In this dynamic position, you will be integral to the delivery of major airfield projects, including runways, taxiways, and aprons. Additionally, you will mentor emerging talent and enhance our presence within the Sydney aviation sector.Your responsibilities will include:Leading the technical execution of intricate airfield pavement projects across Sydney, NSW, and the ANZ region.Serving as a trusted technical authority, providing expert guidance on pavement design, rehabilitation strategies, and ensuring airfield compliance with ICAO, CASA, and FAA standards.Managing and coordinating multidisciplinary design teams to ensure quality, consistency, and timely project delivery.Building strong relationships with key aviation clients, fostering opportunities for repeat business and new projects.Contributing to bids and proposals by offering practical insights that position AECOM favorably in aviation pursuits.Mentoring junior and mid-level engineers, enhancing the skills and capabilities of our Sydney aviation and pavements team.Balancing technical project delivery with leadership responsibilities, including oversight of scope, timelines, and commercial performance.Driving growth within the Sydney aviation team by sharing knowledge, refining processes, and bolstering our market position.

Join Canva as an Infrastructure Engineer Intern for the 2026/27 academic year! This is an excellent opportunity for aspiring engineers to gain hands-on experience in a dynamic and innovative environment. As part of our team, you will work closely with industry professionals to support the development and maintenance of our infrastructure, ensuring optimal performance and reliability.

At Ripple, we envision a future where value transfers seamlessly, akin to how information flows today. Our mission is bold and transformative – we are already reshaping the global financial landscape through our innovative crypto solutions tailored for financial institutions, businesses, governments, and developers. By enhancing the financial system, we create equitable opportunities for individuals worldwide, enabling everyone to engage more effectively with their economies. Join us and discover your potential while collaborating with a supportive team that champions your growth.As part of our ongoing evolution, GTreasury, now integrated into Ripple, enhances our capabilities in the multi-trillion-dollar corporate finance sector. With over four decades of experience, GTreasury empowers some of the most sophisticated companies globally, allowing them to manage and optimize liquidity in real-time across both traditional and digital assets.Become a key player in shaping the future of corporate treasury and the infrastructure driving the Internet of Value.We are on the lookout for a creative and forward-thinking Staff Software Engineer who is dedicated to crafting a top-tier platform alongside a world-class team. You will be instrumental in advancing technical software excellence and leading application development in design, implementation, and maintenance, helping us achieve remarkable outcomes.

Join the MongoDB Developer Productivity team, where we lay a robust foundation of shared tools and services that empower our product development processes. Our success is defined by the ability of MongoDB's product and engineering teams to deliver exceptional solutions to our customers through an efficient software development lifecycle.As part of the Performance Infrastructure Team, your mission will be to simplify the process for MongoDB engineers to test and enhance the performance of our products. In this role as a Software Engineer II, you will collaborate closely with performance-driven engineers across the organization to design, develop, and maintain our state-of-the-art performance benchmarking systems and their supporting tools.This position follows a hybrid working model based out of our office in Sydney, Australia.

About KasadaAt Kasada, we are dedicated to safeguarding the internet from the threat of malicious bots. Our innovative solutions protect millions of users worldwide every day. Established with the mission to combat automated bot attacks, we believe the web should be a secure environment for all. Bad bots wreak havoc by hijacking accounts, stealing content, and overwhelming systems, resulting in significant financial losses annually. To help restore trust online, Kasada intercepts bot activities right from their first request, including those previously unseen.Our journey began in a humble shipping container beneath the Sydney Harbour Bridge, and we have since expanded globally, defending some of the most recognized brands around the world.We pride ourselves on our inquisitive nature and our willingness to explore bold ideas to tackle complex challenges. We are looking for individuals who are passionate about addressing critical cybersecurity issues while enjoying the process!Kasada presents an exciting opportunity for a leader to join our Infrastructure & Operations (IO) team, which is on the frontline of defending our customers against fraudulent and automated attacks. As the Engineering Team Lead, you will guide a talented infrastructure engineering group in the development of a scalable cloud computing platform and foundational engineering practices that are essential in our battle against adversaries. A key responsibility of this role is to empower other engineering teams while ensuring our high-traffic workloads are efficient, resilient, and cost-effective.We are searching for a “Player-Coach” to lead our IO team, managing complexities such as automation, architectural patterns, and best practices. While your focus may vary, you are expected to remain technically engaged and hands-on, while also being a people leader who shapes the engineering roadmap through innovative product thinking.

Kasada protects millions online by stopping automated bot attacks that steal content, compromise accounts, and disrupt systems. The team’s work helps limit the billions in damages these threats cause each year. By detecting both known and novel malicious bots, Kasada aims to restore trust in digital spaces. Founded in Sydney, Kasada has grown from a small local team to a global company defending some of the world’s most recognized brands. Role overview The Engineering Team Lead - Infrastructure & Operations leads the IO team from Sydney. This group builds and maintains Kasada’s scalable cloud computing platform, which supports efforts to stop automated attacks and online fraud. Adversaries use sophisticated automation and device farms, so the team’s defenses must evolve rapidly. This is a hands-on technical leadership position, combining people management with a strong focus on product outcomes and engineering strategy. What you will do Guide and mentor the Infrastructure & Operations engineering team Design and build scalable, resilient cloud platforms Promote engineering best practices and architectural patterns Support other teams to ensure reliable, high-performance, and cost-effective workloads Balance hands-on technical work with developing and managing team members Help define and deliver the engineering roadmap with a product-focused approach Requirements Experience leading engineering teams in infrastructure or operations Comfort acting as a player-coach, blending technical contributions with people leadership Ability to navigate complex automation and architectural decisions Curiosity and a bold mindset for tackling cybersecurity challenges Interest in mentoring and collaborating across teams Kasada values curiosity, collaboration, and determination in facing security challenges. The company seeks people who enjoy both the process and the results of their work.

As a result of substantial contract awards in our Water division, we are excited to announce the expansion of our Water Infrastructure Team across Australia. These contracts provide a stable 10-year project pipeline, and with AECOM’s adaptable work culture, you can choose to work from any of our offices located in the Gold Coast, Sunshine Coast, Brisbane, Newcastle, Sydney, Melbourne, or Perth, depending on the opportunity.The Water Infrastructure group offers a comprehensive range of services to both internal and external clients, engaging in projects related to water and wastewater treatment, dams, major conveyance systems, industrial applications, civil infrastructure, mining, and defense sectors. We are dedicated to achieving sustainable outcomes for our clients and the communities we serve.Joining our team means you will benefit from mentorship and guidance from industry-leading experts. You will have the chance to collaborate with colleagues from our interstate and international offices.We invite applications from experienced engineering professionals for the following roles:Design ManagersDirector Level EngineersCivil Engineering LeadsPrincipal Level Civil EngineersSenior Level Civil EngineersProfessional Level Civil Engineers

Speechify helps over 50 million people turn reading materials, PDFs, books, Google Docs, news articles, and websites, into audio. Our text-to-speech apps span iOS, Android, Mac, Chrome, and web. Google named us Chrome Extension of the Year, and Apple awarded us the 2025 Design Award for Inclusivity. Our fully remote team of about 200 includes engineers, AI researchers, and alumni from Amazon, Microsoft, Google, Stripe, Vercel, Bolt, and top academic programs. We work across time zones to build tools that make reading more accessible for everyone. Role overview Speechify’s AI division is looking for a Software Engineer focused on Data Infrastructure & Acquisition. This role centers on collecting and managing large-scale audio data to support model training. The team builds and maintains systems that create high-quality datasets at petabyte scale, balancing efficiency and cost. What you will do Find and source new audio data, then integrate it into our ingestion pipeline. Maintain and improve our cloud infrastructure for data ingestion, currently running on Google Cloud Platform and managed with Terraform. Partner with scientists to optimize for cost, throughput, and data quality, delivering large-scale datasets efficiently for new model development. Work with the AI team and company leadership to plan the dataset roadmap for future consumer and enterprise products. Location This position is based in Sydney, Australia.