 
        
        Job Overview
The Secondary Design Interface Engineer will play a crucial role in the design and implementation of secondary systems within HV electrical substations. This position involves coordinating with various stakeholders, ensuring compliance with industry standards, and optimizing the design process to enhance system reliability and performance.
Typical activities include:
 * Design Coordination: Collaborate with primary design engineers, project managers, and other stakeholders to develop comprehensive secondary system designs.
 * Technical Specifications: Prepare and review technical specifications, drawings, and documentation for substation secondary systems, including protection, control, and communication systems.
 * Drawings Preparation: Prepare interface circuit diagrams, wiring diagrams, cable schedules, block diagrams, and room layouts.
 * Calculations: Calculate battery sizes, voltage drop and cable sizing.
 * HV Equipment Familiarity: HV plant equipment at 132kV, 275kV, and 400kV for AIS & GIS substations.
 * SCADA Systems: Knowledge of SCADA systems and I/O interface.
 * Compliance and Standards: Ensure all designs comply with relevant industry and client standards, regulations, and company policies mainly in UK.
 * Project Management: Manage design scope secondary design, ensuring timely delivery and adherence to budget constraints.
 * Risk Assessment: Conduct risk assessments and develop mitigation strategies to address potential design and implementation challenges.
 * Innovation and Improvement: Identify opportunities for innovation and continuous improvement in design processes and technologies.
 * Stakeholder Engagement: Maintain effective communication with internal and external stakeholders, including clients, contractors, and regulatory bodies.
 * Site Visits: Willingness to travel for site visits and site surveys, primarily within the Mott MacDonald network, and flexibility in working arrangements.
Qualifications
 * Education: Bachelor's degree in Electrical Engineering or a related field.
 * Experience: Good level of experience in secondary system design within the HV power industry.
 * Technical Skills: Very good knowledge of protection and control systems, and familiarity with industry standards (e.g., IEC, IEEE). NGTS would be an advantage.
 * Project Management: Strong project management skills, with the ability to handle multiple projects simultaneously.
 * Communication: Excellent verbal and written communication skills, with the ability to convey complex technical information clearly.
 * Problem‑Solving: Strong analytical and problem‑solving abilities, with a focus on practical and innovative solutions.
 * Team Player: Ability to work effectively in a team environment and collaborate with diverse stakeholders.
Benefits
 * Health and wellbeing
 o Private medical insurance for all UK colleagues.
 o Health cash plan to support you with everyday health costs and treatments.
 o Access to Peppy, providing free support from menopause experts for all UK colleagues.
 o A variety of wellbeing support is available through our comprehensive wellbeing program, including access for you and your family.
 o Ability to flex your salary to opt into a wide range of health benefits, many of which can be extended to your family too.
 * Financial wellbeing
 o We match employee pension contributions between 4.5% and 7%.
 o Life assurance equal up to 4 × your basic salary, with an option to increase the level of cover to 6 × your salary.
 o Our income protection scheme provides a financial benefit, as well as absence and return‑to‑work support due to long‑term illness or injury.
 o Flexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will writing.
 o As an independently owned business we share the financial success of the business with all our colleagues in various ways including annual bonus schemes.
 * Holiday entitlement
 o A minimum of 33–35 days holiday each year, inclusive of public holidays and dependent on level.
 o Holiday entitlement increased to a minimum of 35 days after 5 years' service.
 o Variety of employee saving schemes and discounts from high‑street retailers.
Equality, Diversity, and Inclusion
We put equality, diversity, and inclusion at the heart of our business, seeking to promote fair employment procedures and practices to ensure equal opportunities for all.
Accessible Recruitment
If you are disabled or need any support to enable you to apply or attend an interview, please contact us at reasonable.adjustments@mottmac.com.
About Mott MacDonald
Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve.
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