Train System Engineer (Aux and Battery)

Req ID: 497305

Location: Derby

Appointment Basis: Permanent

Apply by: 02/01/2026

Salary: circa £53,000 DOE plus excellent benefits

At Alstom, we understand transport networks and what moves people. From high-speed trains, metros, monorails, and trams, to turnkey systems, services, infrastructure, signalling and digital mobility, we offer our diverse customers the broadest portfolio in the industry. Every day, 80,000 colleagues lead the way to greener and smarter mobility worldwide, connecting cities as we reduce carbon and replace cars.

Your future role

The Train System Engineer will define and deliver the Auxiliary, Battery Charger and Battery System scope within the Train System architecture, ensuring operability, performance, and compliance with functional and safety requirements. This includes specifying system functions, managing requirements, and supporting verification and validation activities to demonstrate that the solution meets all applicable standards. The Train System Engineer will lead technical studies and integration tasks to achieve performance targets and deliver all associated technical outputs.

We’ll look to you for:

• Ensure auxiliary system performance and integration within the overall train architecture, including battery and battery charger systems.
• Develop and manage technical requirements derived from standards, certification, safety, platform, and customer specifications, and allocate these to relevant auxiliary subsystems such as batteries and chargers.
• Define and validate operational and functional analyses for auxiliary systems, including energy storage and charging functions.
• Guarantee consistency and compatibility of subsystem specifications impacting auxiliary scope, particularly battery and charger interfaces.
• Act as the technical interface for auxiliary system topics, supporting the Project Manager and PrWM during revenue service.
• Make architecture trade-offs between subsystems to achieve optimal train-level performance, considering energy management and auxiliary power distribution.
• Resolve technical issues related to auxiliary scope, including battery and charger systems, from investigation through to implementation and closure.
• Define and execute verification strategies for auxiliary system requirements in collaboration with engineering and validation teams, ensuring robust testing of battery and charging functions.
• Support train integration and tuning phases, including test specification for auxiliary system functions such as battery performance and charger operation.
• Ensure adherence to baselines, KPIs, and on-time delivery of auxiliary deliverables, including battery and charger components.
• Provide Return on Experience (RoE) to improve standard solutions and enhance quality, cost, and delivery performance for auxiliary systems.            

All about you

We value passion and attitude over experience. That’s why we don’t expect you to have every single skill. Instead, we’ve listed some that we think will help you succeed and grow in this role: 

• Bachelors or master’s in engineering or equivalent experience.
• High level of experience in Rolling Stock Engineering.
• Experience in systems engineering and following the V-cycle for development of projects.
• Experience of technical team leadership.
• Customer Focus/ Management skills.
• Ability to switch seamlessly between problem-focused and solution-focused perspectives, and to engage constructively in challenging tasks and being challenged on approaches or decisions.
• Ability to integrate mechanical, electrical, and control functions into cohesive subsystem designs, ensuring seamless interaction and optimal performance across all components
• Sense for coordination and team spirit.
• Good communication and interpersonal skills.
• Fluent in English.

Things you’ll enjoy

Join us on a life-long transformative journey – the rail industry is here to stay, so you can grow and develop new skills and experiences throughout your career.

You’ll also:

• Enjoy stability, challenges and a long-term career free from boring daily routines
• Collaborate with transverse teams and helpful colleagues
• Contribute to innovative projects
• Utilise our dynamic, inclusive, and safety-focused working environment
• Steer your career in whatever direction you choose across functions and countries
• Benefit from our investment in your development, through award-winning learning
• Benefit from a fair and dynamic reward package that recognises your performance and potential, plus comprehensive and competitive social coverage (life, medical, pension) 
• Up to 52 weeks full maternity and adoption pay
• 25 days annual leave plus bank holidays, with the opportunity to buy or sell holiday
• A wide range of flexible benefits that you can tailor to suit your lifestyle

You don’t need to be a train enthusiast to thrive with us. We guarantee that when you step onto one of our trains with your friends or family, you’ll be proud. If you’re up for the challenge, we’d love to hear from you!

Equal opportunity statement:

Alstom is an equal opportunity employer committed to creating an inclusive working environment where all our employees are encouraged to reach their full potential, and individual differences are valued and respected.  All qualified applicants are considered for employment without regard to race, colour, religion, gender, sexual orientation, gender identity, age, national origin, disability status, or any other characteristic protected by local law. 

As a 'Disability Confident' employer, we will interview all disabled job applicants who match the essential criteria of the job description or specification. We will consider flexible working requests for all roles unless operational requirements prevent otherwise.

#LI-AL2