Senior Electrical Design Engineer

ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.

Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world-today.

Join us and start building tomorrow’s world today!

As a Senior Electrical Design Engineer, you will join our Horsham team to support our activities within the clean energy and hydrogen technologies sector.

You will play a key role in the design and development of electrical systems for fuel cell and electrolysis technologies, supporting the transition to a net-zero future. Working within a multidisciplinary Systems Engineering team, you will contribute to the development of innovative power generation and green hydrogen solutions, with responsibility for electrical architecture, power systems analysis, grid integration, and system commissioning activities.

• Location: Horsham
• On Site: Hybrid
• Clearance: Clearable
• Experience Level: Senior

Key Responsibilities:

• Design and develop electrical architectures for fuel cell and electrolysis systems
• Support the electrical design and optimisation of fuel cell stacks, stack arrays, and associated systems
• Deliver grid connection designs for power generation and demand applications across AC and DC distribution systems
• Perform electrical modelling, power analysis, and technical feasibility assessments
• Produce electrical drawings, wiring schematics, and supporting technical documentation
• Review and approve electrical designs, ensuring compliance with applicable standards and regulations
• Provide technical guidance on electrical components, distribution panels, switchgear, and electrical machines
• Support installation, commissioning, troubleshooting, and validation activities for electrical systems
• Manage and review work delivered by electrical contractors and installation teams
• Identify and mitigate technical risks associated with electrical system designs
• Collaborate with internal teams and external stakeholders to deliver innovative clean energy solutions

Required Skills:

• Strong experience in electrical system design and power electronics
• Experience designing and delivering grid connections for power generation or large-scale energy projects
• Practical knowledge of AC and DC electrical distribution systems
• Experience with cable sizing, protection device selection, grounding/earthing design, and electrical infrastructure
• Knowledge of electrical machines, switchgear, and distribution panels
• Experience interfacing electrical systems with PLCs, embedded controllers, power converters, and protection systems
• Strong understanding of electrical standards and regulations, including IEEE, ANSI, IEC, and NFPA
• Experience reviewing electrical schematics, load calculations, Bills of Materials (BoMs), and electrical design packages
• Strong technical report writing and stakeholder communication skills

Required Qualifications:

• A Bachelor’s or Master’s degree in Engineering, or equivalent military experience.
• Significant experience delivering electrical design solutions within complex engineering projects
• Experience supporting projects through design, installation, commissioning, and operational phases
• Strong practical and theoretical understanding of electrical power systems

Desirable Skills:

• Experience within fuel cell, hydrogen, renewable energy, or power generation sectors
• Knowledge of power system modelling and analysis tools such as ETAP
• Experience using EPLAN, MATLAB, or similar engineering software
• Experience with MW-scale power systems and grid infrastructure
• Knowledge of industrial control systems and power conversion technologies
• Experience working on first-of-a-kind prototypes or R&D-focused engineering programmes
• Fluency in Korean, Mandarin, Chinese, or German
• Experience working with international partners and multicultural engineering teams

Why join us?

We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies.

At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals.

Join a passionate team and help build tomorrow, today.

In short you get:

• A personalised career path and a rewarding management style
• A huge diversity of engineering projects and industries
• Private Medical Insurance
• Cycle & Tech Scheme
• Employee assistance programme
• Life insurance & Pension Scheme
• Social atmosphere, regular gatherings & team buildings
• Flexible way of working (role dependent)

We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes.

ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know.

This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.