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# Principal Secondary Systems Engineer (Germany)

- **Company:** Mott MacDonald
- **Location:** Düsseldorf, Germany
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Supervisory Control and Data Acquisition (SCADA)
- **Published:** August 22, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=c997ede738c5a167

## About the Role

* Degree in Electrical Engineering or equivalent
 * Experience delivering secondary design for transmission substations
 * Knowledge of protection and control systems
 * Familiarity with IEC 61850, VDE, IEC and utility standards
 * Experience within transmission, renewable energy or utility infrastructure
 * Excellent communication skills in German and English

Desirable:

 * Experience with 110kV, 220kV and 380kV substations
 * Experience working with TSO or DSO clients
 * Chartership or equivalent professional accreditation
 * Experience supporting commissioning and protection testing activities

## Description

This is an excellent opportunity for an entrepreneurial professional who is energised by the challenge of building an engineering team from the ground up. You will play a key role in the design and delivery of protection, control and secondary systems for major transmission infrastructure projects across Germany and Europe.
As a Secondary Design Engineer, you will be responsible for developing secondary designs for HV and EHV substations from concept through detailed design and construction support. You will collaborate with multidisciplinary teams and support complex transmission projects
Key responsibilities and duties include:

 * Deliver engineering solutions for secondary systems in HV and EHV substations
 * Develop protection, control and SCADA designs
 * Prepare protection philosophies, schematics and wiring diagrams
 * Develop interlocking and control system designs
 * Produce technical specifications and design documentation
 * Coordinate secondary interfaces with primary design and system operators
 * Liaise with clients, transmission operators and equipment suppliers
 * Participate in technical reviews and design assurance activities
 * Support testing, commissioning and energisation activities
 * Mentor junior engineers and contribute to technical excellence within the team, * Major involvement in Germany's energy transition
 * Join a professional team with entrepreneurial spirit to build an engineering team
 * International career opportunities
 * Flexible working arrangements
 * Strong technical development and progression pathways
 * Opportunity to work on some of the most significant transmission projects in Europe


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