DEPARTMENT: Networks
STATUS: 37.5 hours per week, Permanent.
SALARY: Competitive and based on experience and qualifications.
LOCATION: Glasgow or Manchester
THE POSITION
We’re searching for a Principal Power System Design Engineer – Networks to join us at an exciting stage of our growth. This is a fantastic opportunity to contribute to impactful consultancy work, help shape client outcomes, and play an important part in the continued development of our services. In this role, you will have the chance to take ownership of meaningful work, collaborate with talented specialists, and make a genuine contribution to TNEI’s mission in the energy transition.
Whether you’re looking to step up into your next level of responsibility, develop your technical or consultancy skills, gain more exposure to client-facing work, or broaden your project portfolio, this role offers significant scope for growth. We understand that career journeys aren’t always linear, this opportunity may equally suit someone seeking a sideways move into a new team, discipline or environment where they can make a real difference and apply existing expertise in a fresh context. At TNEI, you’ll be supported to shape a career pathway that fits your goals while contributing to high‑impact projects.
KEY DUTIES & RESPONSIBILITIES
Project Leadership
- Conduct technical work leading to the successful completion of projects
- Oversee and manage complex consulting projects from inception to completion
- Coordinate with cross-functional teams to ensure timely and within-budget delivery
Team Management and Mentoring
- Lead, mentor and develop junior consultants and team members
- Foster a collaborative and high-performing team environment
Technical Expertise & Thought Leadership
- Stay up to date with industry development, regulatory changes and power systems design & technologies
- Represent the company at conferences, seminars, and networking events
REQUIREMENTS
Essential requirements include:
- Degree in Electrical Engineering, Power Systems Engineering, or a related discipline.
- Experience in power system modelling and analysis for transmission and/or distribution networks.
- Experience contributing to the design of electrical networks, including substations, cables, overhead lines, and associated plant.
- Familiarity with network studies such as load flow, fault level, voltage, reactive power, harmonics, protection coordination, EMT, or stability assessments.
- Experience using power system software such as DIgSILENT PowerFactory, IPSA, PSCAD, PSS®E, ETAP, or similar.
- Understanding of transmission and distribution network planning and grid connection processes.
- Ability to develop and review network designs, single-line diagrams, technical specifications, and engineering reports.
- Experience supporting feasibility studies, concept design, FEED/Pre-FEED studies, or detailed design projects.
- Knowledge of relevant industry standards, including the GB Grid Code, Distribution Code, ENA Engineering Recommendations, or equivalent standards.
- Strong communication skills and ability to work collaboratively with clients, contractors, and multidisciplinary teams.
- Self-motivated with a willingness to learn, develop, and contribute to technical excellence.
- Experience mentoring junior engineers or leading small project teams.
Desirable requirements:
- Chartered Engineer (CEng) status or working towards chartership.
- Experience with Python for analysis or automation
- Understanding of the energy regulatory environment
- Knowledge of HV asset management practices
- Experience in renewable energy, battery storage, data centres, industrial, utility, or generation projects.
- Experience with grid connection applications, due diligence studies, or owner’s engineer assignments.
ABOUT TNEI
TNEI is a specialist, vibrant consulting company that has been at the forefront of providing expert technical advice to electricity network companies, renewable energy developers, regulators and funding institutions all over the world since it was established in 1999. By nurturing the top talent in the energy industry we’ve built a solid reputation of developing innovative solutions and solving complex problems associated with achieving net zero. We offer a fast-paced learning environment with excellent career development opportunities. Join us and become part of the net zero energy revolution.
TNEI staff at the heart of the business
TNEI is an Employee Ownership Trust meaning that the people who work in the business directly benefit from and influence the direction and future success of the company.
TNEI has always been proud of its inventive and collaborative culture. That culture is at the heart of its success and ensures innovative and novel approaches to supporting and helping solve challenges facing our client base. An Employee Ownership Trust embodies this company culture in which we all feel responsible for the business’ performance and success.
By remaining independent, the company is able to retain its culture and reputation and allow staff to feel even more connected to the company.
Find out what it’s like to be part of our team and visit ‘life at TNEI’ on our website’s careers page.
Here’s How We Take Care Of You
- Work life balance: 25 days annual leave (plus public holidays) & a day off to celebrate your birthday
- Flexible working: Hybrid, ‘flex’ your day around our core working hours & annual opportunity to work from ‘an alternative location’
- Career growth: Development opportunities & funded professional memberships
- Financial rewards: Annual pay review, Discretional annual bonus scheme, employee ownership dividend & 7% employer pension contribution (with the option to enhance with salary exchange)
- Wellbeing support: Private Medical Insurance, Employee Assistance Programme, extensive life assurance & income protection
- Enhanced policies and provisions to support colleagues through all of the moments that matter
- People & Community: Cycle to Work, annual travel loan, discounts platform, team socials & charity matching
How to apply
Please apply using the ‘Apply Now’ form on the Careers Page on our website, and upload your CV and covering letter, demonstrating why you are suitable for the role and any previous experience.
Closing date for applications:
Applications will close on or before 31 July 2026
Successful candidates will be invited to interview on receipt of application. Therefore, if you are planning to apply, we recommend that you do so without delay.
Equality, diversity and inclusion
TNEI promotes equality, diversity and inclusion in a space where all are respected.
