Senior Lead Technician

TES Group Cookstown, Northern Ireland, United Kingdom

Lead and manage a team of Testing & Inspection Technicians; oversee and perform the testing and commissioning of all control panels (in‑house and on‑site); coordinate and conduct FAT (Factory Acceptance Testing) and SAT (Site Acceptance Testing) activities; liaise directly with clients to resolve technical queries and ensure satisfaction; collaborate with Contracts Managers to align testing operations with project requirements and timelines;

conduct electrical fault‑finding and ensure timely resolution of issues; oversee NIC/EIC testing procedures; uphold compliance with all ISO Quality, Environmental, and Health & Safety standards; mentor and train junior technicians, fostering a culture of excellence and accountability; provide regular reporting and documentation on testing activities.

• 2395 or equivalent Testing & Inspection Certification
• Significant hands‑on experience in Testing & Inspection, preferably within the water, wastewater, or process engineering industries
• Strong leadership capabilities with previous experience supervising or mentoring technical teams
• Proficient in electrical fault diagnosis and technical problem‑solving
• Excellent communication and interpersonal skills
• Strong organisational and time‑management abilities
• Proficient with computer applications including Excel and database systems
• High attention to detail and ability to work independently under pressure
• Full driving licence
• Exposure to ACC docs, BIM
  360 or similar platforms would be advantageous

TES are an award‑winning environmental engineering company specialising in Water Treatment and Power Distribution solutions. Due to continued growth, we are seeking an experienced and driven Senior Lead Technician to oversee our Testing & Inspection team.

As the Senior Lead Technician, you will take a hands‑on leadership role in overseeing the testing, commissioning, and inspection of control panels both in‑house and on‑site. You will act as the technical authority for your team, ensuring quality, compliance, and efficiency across all testing operations. This role offers clear opportunities for growth and career progression as the company continues to expand.

• Death in service Plan - 3 times Gross Salary.
• Private Medical Insurance – Option to add Family.
• 30 days Annual Leave
• Training days and courses if required, in line with business needs.
• Employee engagement events.

TES provide clients with an all encompassing service from initial project conception right through to design, construction, installation and maintenance. We support our clients throughout the lifecylce of the project. TES use in‑house resources in the delivery of your projects; from design through to installation and operation. This provides clients and partners with the reassurance of our control over delivery throughout a projects lifecycle.

At TES Group, our company culture is built on collaboration, innovation, and integrity. We foster an inclusive environment where every team member’s ideas are valued, encouraging creativity and continuous improvement. Our people are passionate about delivering sustainable engineering solutions that make a positive impact on communities and the environment. We prioritise professional growth, safety, and well‑being, empowering our employees to thrive both personally and professionally.

By promoting open communication, mutual respect, and shared success, we’ve cultivated a workplace where dedication and teamwork drive exceptional results and lasting client relationships.

• 2395 or equivalent Testing & Inspection Certification
• Significant hands‑on experience in Testing & Inspection, preferably within the water, wastewater, or process engineering industries
• Full driving licence

Full‑time

Based on Experience

Friday 30th January, 2026

Not Applicable

Full‑time

Engineering and Information Technology

Electric Power Transmission, Control, and Distribution