Systems Engineer

Job Description

Overview

Empowering projects in a complex world.

You might know us for the great work we do across our wide variety of projects. We're proud to say it's thanks to our people's diversity of thought, expertise and knowledge. And when you join us, you'll be a part of this genuinely collaborative environment, where everyone's voice is valued and treated equally. We're passionate about what we do, but we don't take ourselves too seriously. Simply put, this a great place to be. So, when it comes to your life outside of work, ask us about our flexible and remote working policies designed to help you get the most out of life. Additionally, if you’ve taken time away from your career and are ready to return, we offer a range of supportive opportunities designed to help you confidently step back into the workplace and continue your professional journey.

Are you ready to start building a career where your work genuinely matters? As a Systems Engineer in our  in our Advanced Engineering Delivery & Consultancy (AEDC) practice, you’ll play a hands‑on role in programmes that protect the UK and help secure its future. You’ll contribute to complex, high‑profile projects, working alongside experienced engineers in collaborative, supportive teams. This role is ideal if you enjoy solving challenging technical problems, learning from others, and applying systems thinking in real‑world environments. You’ll have the opportunity to work closely with leading clients on programmes delivered in some of the UK’s most secure and strategically important locations – including Aldermaston, Barrow‑in‑Furness, Faslane and Devonport – gaining exposure and experience that will support your professional development.

In this role, you won’t be limited to a single task or phase of the lifecycle. You’ll gain genuine variety, contributing to work from early concept development through to integration and delivery. Your projects may span land, sea, air, and Critical National Infrastructure (CNI) domains, giving you exposure to a broad range of engineering challenges. You’ll work as part of multi‑disciplinary teams, supporting technical decision‑making and helping ensure system elements come together coherently. You will typically work on the definition and management of requirements, underpinned by a Model‑Based Systems Engineering (MBSE) approach. This will enable you to support design, analysis and verification activities using modern, digital engineering methods as you continue to build your capability and experience.

You’ll work closely with stakeholders at every level, from engineers to senior leaders, influencing outcomes and shaping solutions that make a real difference. And because these programmes are critical to national security, you’ll know that your contribution has impact far beyond the office.

Your role

• Apply recognised systems engineering processes, such as ISO 15288, across one or more phases of the engineering lifecycle, with support from senior colleagues.
• Use Model‑Based Systems Engineering (MBSE) approaches and tools (e.g. Sparx EA, Cameo) to support system design activities, applying modelling languages such as UML/SysML and relevant architectural views.
• Support requirements engineering activities, helping to ensure requirements are clear, traceable, and linked to verification and validation activities.
• Contribute to the application of appropriate engineering lifecycles in line with project needs and governance.
• Work within project teams using a range of development and delivery methodologies, contributing to planning and delivery activities.
• Develop an understanding of the MOD acquisition framework and apply Knowledge in Defence (KiD) proportionately under guidance.
• Communicate technical information clearly within the team and contribute to discussions with non‑engineers, building effective working relationships.

About you

• Degree qualified (Level 6 or above) in a relevant STEM subject or possess equivalent depth of experience in an engineering field.
• Working towards professional recognition with an appropriate institution, such as CEng or CSEP.
• Basic knowledge of MBSE approaches and tools (e.g., Sparx EA, Cameo).
• Basic knowledge of modelling languages and architecture frameworks, including UML/SysML, ArchiMate, TOGAF, and MODAF.
• An understanding of engineering lifecycles, including their selection, tailoring, and implementation.
• An understanding of the wider aspects of delivery, such as commercial, finance and planning.
• Ability to apply systems engineering processes (e.g., ISO 15288:2023) across the lifecycle.
• Proven track record in managing projects and teams across various development methods.
• Strong interpersonal skills, with the ability to build trusted relationships.
• Ability to understand, simplify, and explain subject matter to non-engineers and senior stakeholders.

Rewards & benefits

Explore the rewards and benefits that help you thrive – at every stage of your life and your career. Enjoy competitive salaries, employee rewards and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices. Make the most of a myriad of opportunities for training and professional development to grow your skills and expertise. And combine our hybrid working culture and flexible holiday allowances to balance a great job and fulfilling personal life.

Be rewarded. Find out more.

About AtkinsRéalis

We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

Security clearance

This role may require security clearance and offers of employment will be dependent on obtaining the relevant level of clearance. If this is necessary, it will be discussed with you at interview. The vetting process is delivered by United Kingdom Security Vetting (UKSV) and may require candidates to provide proof of residency in the UK of 5 years or longer. If applying to this role please do not make reference to (in conversation) or include in your application or CV, details of any current or previously held security clearance.

We are committed to creating a culture where everyone feels that they belong - a place where we can all be ourselves, thrive and develop to be the best we can be. So, we offer a range of family friendly, inclusive employment policies, flexible working arrangements and employee resource groups to support all employees. As an Equal Opportunities Employer, we value applications from all backgrounds, cultures and ability. As a Disability Confident Leader, we are committed to offering an interview to all applicants who have a disability and meet the essential criteria. If you would like to be considered under this commitment, please let us know at the application stage.

Worker Type

Employee

Job Type

Regular

At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.