Technical Support Assistant
THE TEAM
Join the Business Development team at JSM Group Services Ltd., a specialist electrical and civil engineering company delivering the design, installation, and commissioning of Extra High Voltage (EHV) cable systems and substations across transmission and distribution networks. We work alongside grid operators, utilities, and major infrastructure clients to deliver critical power projects safely and to the highest technical standards.
We are building a workplace that is not only a leading force in the utility sector in the UK but also a beacon of exemplary workplace culture and social responsibility. Our Business Development team sits at the heart of our growth, translating technical expertise into winning proposals and trusted client relationships.
SCOPE OF ROLE
We are looking for a motivated and detail-oriented Technical Support Assistant to provide administrative, coordination, and technical support to our Business Development team. This role sits at the intersection of engineering operations and project administration, helping to ensure that documentation, compliance records, technical queries, and internal communications are managed efficiently across our EHV cable and substation projects.
This is an excellent opportunity for someone with a background in electrical or civil engineering support who wants to develop their knowledge of high-voltage infrastructure in a fast-paced, project-driven environment, reporting to the Head of Business Development.
Technical & Administrative Support
• Provide day-to-day technical and administrative support to the Business Development department, working with clients on EHV cable installation and substation construction projects.
• Prepare documentation for the application of Budget Estimates and Formal Offers to DNOs (Distribution Network Operators).
• Carry out high-level budget costs for EHV cable installation and substation construction projects.
• Assist in preparing technical submittals, RFIs (Requests for Information), and technical PQQs (Pre-Quote Questionnaires).
• Support the engineering team with research into technical standards, including ENA Engineering Recommendations and IEC/BS standards relevant to EHV cable systems and substation equipment.
Documentation & Correspondence
• Manage and file engineering correspondence, ensuring traceability and version control across project documentation systems.
• Liaise with clients, subcontractors, and utility representatives to respond to technical information requests.
• Assist in the preparation of progress reports, project trackers, and presentation materials for internal and client-facing meetings.
• Be aware of and understand the requirements of Health, Safety and Sustainability (HSS) relevant to this role.
HOW YOU'LL SUCCEED
✔ Manage documentation with precision – maintain accurate, well-organised project files and correspondence, ensuring traceability and version control across all workstreams.
✔ Support the team proactively – anticipate the needs of the Business Development and engineering teams, preparing materials, reports, and cost information ahead of time.
✔ Communicate clearly and professionally – liaise confidently with engineers, clients, and subcontractors, representing JSM with professionalism in every interaction.
✔ Deliver accurate technical outputs – produce reliable budget estimates, technical submittals, and PQQ responses that reflect JSM’s standards and capabilities.
✔ Embrace a learning mindset – develop your knowledge of EHV cable systems, substation infrastructure, and industry standards, growing your expertise in a specialist environment.
✔ Operate effectively under pressure – manage multiple workstreams simultaneously without compromising quality, accuracy, or attention to detail.
WHAT IT TAKES
Essential
✔ Experience in an administrative or technical support role within a utilities, power, or construction environment.
✔ Strong proficiency in Microsoft Office (Word, Excel, Outlook); familiarity with document management systems such as SharePoint or similar.
✔ Excellent organisational skills and the ability to manage multiple workstreams simultaneously.
✔ Clear written and verbal communication skills, with the ability to liaise professionally with engineers, clients, and subcontractors.
✔ Understanding of engineering documentation practices, including drawing registers and site records.
✔ Flexible, adaptable and highly motivated with a ‘can do’ attitude.
✔ Able to work independently with minimum supervision and as part of a team to meet tight deadlines.
✔ Able to work under pressure without compromising quality, accuracy, or detail.
✔ A willingness to develop and learn.
Qualifications
✔ City & Guilds 2304 qualification in Electrical Engineering, Civil Engineering, or a closely related technical discipline — or equivalent demonstrable experience.
Desirable
✔ Familiarity with EHV cable systems (132kV and above), substations, or transmission network projects.
✔ Experience working within a DNO, TNO, or ICP (Independent Connection Provider) environment.
✔ Knowledge of relevant standards and regulations (e.g. ENA TS 09-12, G99, CDM 2015, BS 7671).
✔ Experience in quoting and costing.
WHAT WE OFFER YOU
We truly value your work, time, and skills! In return, we will offer you a competitive salary and some additional benefits to support your professional growth, including:
Participation in mentoring and coaching programmes
28 days of holiday (excluding bank holidays)
2 paid volunteering days a year
Hybrid working pattern
Continuous training and development, in both technical and business skills
Equal Opportunity Statement
JSM Group Services Ltd. is an equal opportunities employer and does not discriminate on the grounds of gender, sexual orientation, marital or civil partner status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age. Our ethos is to respect and value people’s differences, and to help everyone achieve more at work as well as in their personal lives so that they feel proud of the part they play in our success. We believe that all decisions about people at work should be based on the individual’s abilities, skills, performance and behaviour and our business requirements. JSM Group operates a zero-tolerance policy to any form of discrimination, abuse or harassment.
- Department
- Power
- Locations
- Head Office - Potters Bar
- Employment type
- Full-time
About JSM Group
At JSM Group, we are a leading specialist infrastructure engineering company. We design and install the complex power networks, digital infrastructure and specialist systems a future-focused worldwide marketplace needs.
From High-Power grid connections to Critical Utilities. Data Centres to Renewable Energy, our full turnkey solution teams manage the full scope to help advise and deliver complex infrastructure projects at speed, on time and with reduced legislation, technical and commercial risks.