Diagnostic Technician

Join the Nissan Service Team

Shelbourne Motors is one of Northern Ireland’s most progressive and award-winning automotive groups. Operating across two state-of-the-art locations, we proudly represent Toyota, Nissan, Kia, Renault, Dacia and Maxus, alongside our AutoSelect used car supermarkets and our expanding Fleet (fleet4u) and Rental (SVRgo) divisions.

Recently, Shelbourne Motors has undergone a major period of transformation and recognition.

Most recently, we were proudly awarded:

  • Dealer Group of the Year 2024 & 2025
  • EV Dealer of the Year 2025
  • Best Marketing Campaign 2025
  • Business Eye – Northern Ireland’s Fastest Growing Family Business
  • AM Awards – Highly Commended: Best Marketing Strategy

Our people, ambition, and long-term vision drive our success: to become the most trusted, customer-centred, and sustainable automotive group.

Our mission and values place customer experience, innovation, teamwork and zero-emissions leadership at the heart of everything we do. We are now seeking an ambitious, creative and forward-thinking Aftersales Advisor to join our team in Newry.

Job Overview:

Hours of work: Two shift patterns are available:-

  • Shift 1: Monday - Friday 8.30am - 5.00pm plus Saturday 9.00am - 1.00pm as per the rota (one in every 4)
  • Shift 2: Monday - Friday 9.00am - 5.30pm plus Saturday 9.00am - 1.00pm as per the rota (one in every 4)

The role

As a Shelbourne Motors Diagnostic Technician, you will be responsible for accurately diagnosing and repairing a wide range of mechanical and electrical faults on customers’ cars. You must ensure a fantastic standard of work and aim for a first-time fix every time.

This position is a great opportunity for a diagnostic technician who is looking to keep up to date with modern vehicle technologies and develop skills in the Nissan environment. Ongoing training is available for the right candidate.

Day-to-day duties

  • Inspecting vehicle engines and mechanical/electrical components and diagnosing issues accurately, using computer-based diagnostic equipment.
  • Repairing or replacing broken or defective parts and confirming that defects have been resolved.
  • Training other members of the team in various diagnostic and repair methods.
  • Liaising with the Nissan vehicle manufacturer and customers to accurately communicate faults and repairs needed.
  • Recording test results and findings and maintaining records to manufacturer requirements.
  • Assisting in workshop planning and the pre-diagnosis of vehicle faults, including the speculative ordering of parts, to ensure a first-time fix.
  • Road testing vehicles to check repairs.

Essential skills

  • A minimum of Light Vehicle Maintenance Level 3 and solid, proven work experience with one of the leading vehicle manufacturers, achieving Diagnostic level.
  • Ability to work in a competent and efficient manner both as part of a team and independently.
  • Ability to follow checklists and ensure that all procedures are completed.
  • High levels of accuracy and attention to detail.
  • Ability to follow instructions and listening skills.
  • A high level of organisation.
  • Strong communication skills to liaise with manufacturers and customers.
  • An understanding of great customer service.
  • A full UK driving licence.

We may consider experienced vehicle technicians who want to develop themselves to the diagnostic/master level by attending dealership training.

Why Shelbourne?

As one of the fastest-growing motor retailers in Northern Ireland, we offer a competitive package for this role which will include but isn’t limited to:

  • 30 days' annual leave (increasing with long service)
  • Company pension scheme
  • Industry-leading sales pay plan

If you have what it takes to join a proactive professional company and feel that you will be an asset to our company, we would like to hear from you.


To Apply

Online: Upload your CV & submit below

Speak to us in confidence by calling HR Direct Line 028 3839 6808

CLOSING DATE: Applications must be submitted by 5.30pm on Saturday, 28th March 2026.

Shelbourne Motors Limited is an equal opportunities employer.

Ref: DVT.2026.32

Working Hours 40 hours per week
Location Portadown
Salary Competitive + OTE Monthly Bonus
Benefits 30 days Annual Leave (increasing with length of service)
Employer Pension Contributions
Staff preferential vehicle purchase schemes
Free employer car parking
30 days annual leave increasing with service
Closing Date 28/03/2026
About You * Required Information
    Additional Information
    Cancel