Principles Tester

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Date: 24 Mar 2024

Location: Derby, DBY, GB

Company: Alstom

Req ID: 


Location: Derby / Flexible


Appointment Basis: Permanent


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, more than 80000 colleagues lead the way to greener and smarter mobility worldwide, connecting cities as we reduce carbon and replace cars.


Could you be the full-time Principals Tester we’re looking for?



As a Signalling Principles Tester you will be responsible for undertaking testing activities, independent of the design function, and provide suitable and sufficient evidence to confirm that the operational, technical and safety principles have been validated and meet the customer’s requirements. This also includes the integration of testing between Interlocking and the Control Systems.

Data principles testing is carried out in the UK Alstom’s offices at Derby, Birmingham, Hatfield and York.




To manage the testing & delivery of the signalling scheme, principles tested safely, to program and forecast cost.

The role of a principles tester is safety critical position and vital to the validation of the signalling interlocking and how it works in accordance with legal and Network Rail Line and Group standards.


The role of a licenced principles tester will report on a day to day basis to the Data Testing Manager and may be responsible for a team of up to four testers. The data testing manager will allocate projects to the principles tester and will be responsible for the management structure of the team on the project.

A licenced principles tester may be asked to mentor un-licenced principles testers. This will be recorded on the un-licenced principles testers’ mentorship plan and forms. Will liaise with internal project staff and the clients’ representatives at project meetings as required.




  • Ensure the signalling project principles data testing is managed and delivered on time, to budget and to current group and line standards
  • Responsible for the complete testing of the signalling scheme.
  • Maintain detailed forecasts of data testing timescales and resource requirements to deliver projects within tendered costs and programme timescales.
  • Maintain and take responsibility for budgets through the duration of principle testing and commissioning.
  • Support commissioning requirements and site activities as required.
  • Provide detailed forecasts of data testing and resource requirements for tendering as required.
  • Effectively manage and motivate allocated testing staff effectively (This will usually be based on no more than four staff)
  • Control hours worked for allocated staff
  • Undertaking all staff management duties including undertaking relevant Performance Management & People Review activities.
  • Develop allocated staff in accordance with IRSE competencies and undertake IRSE licence assessments.
  • Taking account of contracted works, identify potential variations and discuss with Project Team / Tendering Department.
  • Liaison with project team and project functions for technical issue resolution and support.
  • Ensure contract is completed to meet required Health, Safety & Environmental requirements
  • Ensure compliance with Alstom testing procedures.
  • Identify potential process improvements and make recommendations for implementation
  • Attend and onward brief team briefing in technical documents, company safety briefings and alerts
  • Production of testing documentation to Network Rail and Project requirements and standards
  • Maintain IRSE Logbook & Licences
  • Manage all testing interfaces effectively
  • To comply with and undertake all relevant Environment, Health & Safety measures and activities


Post holder requirements




  • Numerate & literate
  • Auditing
  • Presentation Skills
  • Communication Skills


  • Functional Testers Licence
  • Mod 2 Licence 1.3.180
  • Valid PTS ac/dc certificate (Desirable but not essential)
  • Emergency First Aid
  • Manual Handling
  • IOSH Managing Safety


  • Knowledge of contract conditions
  • Understanding of planning process
  • Knowledge of risk assessment process
  • In-depth underpinning knowledge of group & line standards
  • Commercial awareness
  • Knowledge of HSE requirements
  • Appreciation of design & installation
  • To hold any necessary certification that the client deems essential.



  • Report writing
  • Driving Licence


  • HNC or equivalent in Elec. Engineering
  • Associate member of IRSE
  • Mod 1 Licence 1.3.190
  • Mod 3/4 Licence 1.3.170

Additional Information:

  • Travel to other sites
  • Some shift / night / weekend working
  • Some lodging away involved



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 Supportive 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 benefits (pension, life ins., medical, + anything specific to the site e.g. free on-site parking, canteen etc). 


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!



Important to note
As a global business, we’re an equal-opportunity employer that celebrates diversity across the 70+ countries we operate in. We’re committed to creating an inclusive workplace for everyone.
At Alstom we will consider requests for flexible working on hiring. Many of our staff work flexibly in many different ways, including part-time, flexible start and finish times, job sharing, or compressed hours. Please talk to us at interview about the flexibility you need.
Alstom U.K. 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.  We aim to have a welcoming and inclusive environment for individuals, of different ages, genders, ethnicities, disability, LGBT, religion and/or belief.
As a 'Disability Confident' employer, we will interview all disabled job applicants who match the essential criteria of the job description or specification: if you require any reasonable adjustments, please let us know.

Job Segment: Testing, Performance Management, Technology, Human Resources

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