COSS Site Supervisor

Location: Manchester / Merseyside / Lancashire

Salary: Base + overtime opportunities & commercial vehicle with fuel card

Contract Type: Permanent

Working Hours: 40 hours per week, Monday-Friday

About the role
We’re looking for a hands-on COSS Site Supervisor to lead our teams delivering rail-based arboriculture and devegetation projects. You’ll take charge of site safety, ensure compliance, and drive quality on every job, making sure work is carried out safely, efficiently, and to the highest standards.

As the key link between our site teams, subcontractors, and clients, you’ll set the standard for professionalism and safe working while keeping projects moving smoothly.

What you’ll be doing:

• Acting as COSS on live rail sites, setting up and maintaining safe systems of work.
• Supervising devegetation and arboriculture clearance activities to ensure compliance with rail and environmental standards.
• Leading site teams and subcontractors, motivating them to deliver work safely, on time, and to specification.
• Carrying out site safety checks, toolbox talks, and ensuring close-call and hazard reporting is embedded in daily operations.
• Managing site documentation, access/egress, and reporting – with strong use of IT systems for compliance and client updates.
• Representing Ground Control on-site, ensuring high standards of professionalism, communication, and customer satisfaction.

What we’re looking for:

• COSS (Controller of Site Safety) certification (essential).
• PTS and either IOSH Managing Safely or SMSTS.
• Experience supervising in a rail or arb devegetation environment.
• Good working knowledge of safety legislation and site management processes.
• Strong IT skills – confident in using systems for reporting, compliance, and communication.
• A proven leader – able to motivate, challenge, and support teams to deliver safely and effectively.

Desirable:

• PIC (Person in Charge) certification.
• Technical arboriculture knowledge or previous vegetation management experience.
• First Aid at Work qualification.

Why join us:

Career Development Focus: We’re committed to supporting your professional growth with clear career paths, training, and tailored development programs, including our GC Leadership Academy, job specific accreditations and higher education opportunities.

Exciting Growth Opportunities: Be part of a rapidly growing company with a dynamic team and expanding client base.

Collaborative Environment: Work in a supportive, engaging, and innovative culture where your contributions are valued.

Competitive Package: Enjoy a competitive salary and benefits package, along with flexible working options, including:

23 days holiday, Increasing with length of service + bank holidays

Yearly bonus scheme & Share options

Robust pension scheme

Medigold employee support, Free Flu Jabs, Online private GP Service

Free or subsidised national gym memberships

Employee Recognition Scheme

2 personal choice volunteering days

Ground Control

Ground Control is a UK-based grounds maintenance company powered by the latest technology. Since launching in 1973, Ground Control has grown rapidly and now provides full national coverage for our customers across the UK and Ireland.

We deliver a range of services, including grounds maintenance, winter gritting, landscape construction, design, arboriculture, electric vehicle charging point installation to more than 50,000 commercial properties across the UK.

If you are looking to invest in your future with a business that puts people at the centre of everything, click the apply now button below to speak to a member of our team.

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Equal Opportunities Statement

At Ground Control, we are committed to fostering an inclusive and diverse workplace where everyone feels valued and empowered to thrive. We believe that diversity drives innovation and success, and we welcome applications from individuals of all backgrounds, experiences, and perspectives.

We are proud to be an equal opportunities employer and do not discriminate based on sex, age, disability, gender identity, marital status, pregnancy, race, religion or belief, sexual orientation, or any other protected characteristic. We actively support and promote an inclusive culture, ensuring fair and equitable treatment throughout the recruitment process and beyond.