Senior Systems Engineer

slihrms; West of England; Hybrid; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Competitive salary

Flexible hybrid working

Training & development

Job summary

AtkinsRéalis is seeking a Senior Systems Engineer to lead the application of systems engineering across multiple lifecycle phases for defence, nuclear and critical infrastructure programmes in the UK. You will work directly with major clients, defining capability, guiding architecture, integration and verification while mentoring multidisciplinary teams.

The role offers hybrid working arrangements, strong career development, and the chance to influence high-stakes outcomes across land, sea, air

Qualifications

• Experience delivering systems engineering within defence, aerospace, nuclear, energy, infrastructure or government programmes.
• Experience leading requirements engineering, architecture, integration, verification and validation activities.
• Strong communication and stakeholder management with senior technical and non-technical audiences.
• Ability to mentor engineers and lead multidisciplinary teams across complex projects.
• Knowledge of MOD acquisition processes and KiD, plus experience supporting engineering transformation initiatives.

Responsibilities

• Lead the application of systems engineering principles, processes and standards across the engineering lifecycle.
• Define and manage requirements, ensuring traceability through design, integration, verification and validation.
• Lead architecture development and solution design for complex systems and capabilities.
• Provide technical leadership to multidisciplinary teams, work packages and engineering activities.
• Apply systems, architecture and digital engineering techniques to support analysis, integration and decision-making.
• Conduct technical assessments, trade studies and engineering analysis to inform programme decisions.
• Support system integration, acceptance and transition to operational use.
• Build strong stakeholder relationships, mentor engineers, contribute to business growth and apply MOD acquisition knowledge, KiD.

Skills

Technical leadership

Stakeholder management

Requirements engineering

Architecture development

Systems thinking

Verification & validation

Education

Degree in a STEM discipline

CEng / CSEP or progress towards registration

Tools

DOORS

Cameo

SysML

UML

TOGAF

MODAF

Job description

Job Description

Overview

Engineer the UK's most complex systems.

Are you ready to apply your systems engineering expertise to programmes that genuinely matter? At AtkinsRéalis, we help our clients solve some of the world's most complex engineering and programme delivery challenges. Our success comes from the diversity, expertise and passion of our people, and we're committed to creating an environment where everyone can thrive.

Join us and you'll become part of a collaborative and inclusive team that values fresh perspectives, technical excellence and continuous development. You'll work with some of the industry's leading experts while helping to deliver programmes that make a genuine difference to the UK's security, resilience and future capability. We understand that great engineers need flexibility as well as challenge. That's why we offer flexible and hybrid working arrangements wherever possible, a strong commitment to wellbeing, and support for career returners looking to re-establish themselves in the profession.

As a Senior Systems Engineer within our Advanced Engineering Delivery & Consultancy (AEDC) Practice, you'll play a leading role in delivering solutions to some of the UK's most complex defence, nuclear and critical infrastructure challenges. You'll work directly with major clients, helping to define capability, influence key engineering decisions and solve highly complex technical problems.

This is a role for engineers who enjoy variety, responsibility and impact. You'll contribute across the full systems engineering lifecycle, from concept and requirements development through architecture, integration, verification and acceptance. You'll work on programmes spanning land, maritime, air, space, nuclear and Critical National Infrastructure domains, gaining exposure to some of the UK's most strategically important projects.

You'll be trusted to lead technical work packages, provide direction to multidisciplinary teams, mentor developing engineers and engage confidently with senior client stakeholders. Whether supporting capability development, system integration or complex engineering transformation programmes, your expertise will help shape solutions that deliver lasting value.

Projects are delivered across a range of locations, including Aldermaston, Barrow-in-Furness, Faslane and Devonport, providing opportunities to work on nationally significant programmes that few organisations can offer.

Your role

As a Senior Systems Engineer, you will:

• Lead the application of systems engineering principles, processes and standards across the engineering lifecycle.
• Define and manage requirements, ensuring traceability through design, integration, verification and validation.
• Lead architecture development and solution design for complex systems and capabilities.
• Provide technical leadership to multidisciplinary teams, work packages and engineering activities.
• Apply systems, architecture and digital engineering techniques to support analysis, integration and decision-making.
• Conduct technical assessments, trade studies and engineering analysis to inform programme decisions.
• Support system integration, acceptance and transition to operational use.
• Build strong stakeholder relationships, mentor engineers, contribute to business growth and apply MOD acquisition knowledge, including KiD.

About you

We're looking for experienced Systems Engineers who are passionate about solving complex problems and delivering meaningful outcomes. If you don't meet every requirement but believe you can bring value to the role, we'd still love to hear from you.

• Degree-qualified in a relevant STEM discipline (or equivalent experience), with CEng, CSEP or progress towards professional registration.
• Experience delivering systems engineering within complex defence, aerospace, nuclear, energy, infrastructure or government programmes.
• Strong understanding of systems engineering principles, lifecycle management and standards (e.g. ISO 15288).
• Experience leading requirements engineering, architecture, integration, verification and validation activities.
• Proven ability to lead technical teams, influence engineering decisions and deliver successful outcomes.
• Excellent communication and stakeholder management skills, with experience engaging senior technical and non-technical audiences.
• Experience using digital engineering, modelling and architecture tools and frameworks (e.g. DOORS, Cameo, SysML, UML, TOGAF or MODAF).
• Knowledge of MOD acquisition processes, KiD, programme delivery and commercial considerations, with experience supporting engineering transformation initiatives.

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 deve