Microsoft Engineer

Amentum is a global leader in engineering, project and programme management and solutions integration. Founded on programme, project, and engineering experience, combined with deep-seated specialist capabilities, Amentum has become a recognised delivery partner across major UK Government and commercial programmes.

We work extensively with clients across the defence sector to deliver some of the industry’s most complex and challenging programmes. Our clients are government organizations and defence primes, we support their transformation, equipment, and infrastructure programmes.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent. In addition to the benefits you would expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. We also give back to our communities through our programmes which incorporate matched-funding, paid volunteering time and charitable donations.

About the Opportunity :

We are seeking a highly skilled and experienced Microsoft Engineer to join our IT infrastructure team for the Network Enhancement project. In this role, you will be responsible for the design, implementation, and testing of an enterprise-grade Microsoft-centric environment. This includes core infrastructure services like Active Directory, Exchange, SharePoint, and System Centre Configuration Manager (SCCM). You will also play a key role in implementing and integrating Certificate Authority infrastructure and ensuring performance tuning and disaster recovery planning. This is a full-time role that is based in Riyadh, Saudi Arabia.

Key Responsibilities :

• Design, implement, and test core Microsoft infrastructure services (Active Directory, Exchange, SharePoint, SCCM).
• Implement and test the organization's Certificate Authority (CA) infrastructure.
• Troubleshoot and resolve complex technical issues related to Microsoft systems and applications.
• Develop design and test documentation for Microsoft systems and processes.
• Collaborate and coordinate with sub-contractors to ensure seamless integration of Microsoft services with other systems.
• Stay abreast of emerging Microsoft technologies and industry best practices.
• Conduct performance tuning and disaster recovery planning for enterprise-scale systems.

Here’s What You’ll Need :

Our Culture :

Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.

We aim to embed inclusion and diversity in everything we do. We know that if we are inclusive, we’re more connected, and if we are diverse, we’re more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. This is reflected in our wide range of Global Employee Networks centred on inclusion and diversity.

We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

Your application experience is important to us and we’re keen to adapt to make every interaction even better. We welcome feedback on our recruitment process and if you need more from us before deciding to join us then pleas e let us know.