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Sigma Group is seeking a Qualifying Supervisor to support delivery, testing and commissioning of electrical installations across multiple projects in Castleford. You will act as the main contact for electrical compliance and defect management, working with Project Managers, contractors and site teams to ensure high-quality, safe outcomes.
Key responsibilities include overseeing testing, certification and handovers, maintaining records, and coordinating subcontractors.
Posted 07 Aug 2026
WE ARE LOOKING FOR A
QUALIFYING SUPERVISOR
Number of Roles: 1 | Division: Building Services | Location: Castleford
Sigma are experts at transforming commercial space. With over 20 years’ experience operating in the fast-paced and dynamic retail sector, Sigma provide a true end-to-end service; from store construction and consolidation to fixture procurement, projects, and mechanical & electrical installation.
Ranked in the top 10% of the 2019 Sunday Times International FastTrack 200 awards, we’ve been acknowledged as being one of Britain’s fastest growing private companies.
It’s our people that make us who we are, and we are proud to have some of the most experienced, knowledgeable, passionate, and dedicated individuals within our industry, at every level in our business. Sigma is committed to creating a diverse environment and is proud to be an equal opportunities employer. our business.
Outline of role
We are seeking an experienced Qualifying Supervisor to support the delivery, testing, commissioning and close-out of electrical installations across multiple projects. Acting as the key point of contact for electrical compliance, testing and defect management, you will work closely with Project Managers, contractors and site teams to ensure works are completed safely, to the highest quality standards, and in accordance with current NICEIC and BS7671 requirements.
Main responsibilities
Knowledge and experience required
Skills required
Qualifications
Subject to eligibility
Opportunity to be involved with
Sigma is committed to providing colleagues with opportunities to progress their career, supported by a range of training and development activities and interventions’
If you think you’ve got what it takes to join our growing, winning team we’d love you to hear from you.
Established more than two decades ago, Sigma Group has delivered thousands of new and refurbished spaces for major brands, both domestic and international. Today, we support full, multi-site transformations with in-house capability, thanks to our expert-led teams servicing the UK and beyond.