Security Designer

We prefer to hire directly and we will be in touch with our PSL Agencies if this role is eligible for release.

We do not accept speculative CVs from agencies. If speculative CVs are sent, no fee will be applicable – please direct all queries to the relevant Resourcing Partner.

Title

Security Designer

Location

London and Thames Valley Area

We work in partnership and collaboration with our customers, to deliver physical and electronic security solutions for projects across the UK. Our specialist design team bring multi-disciplined innovation and technical skill for a wide variety of Critical National Infrastructure Projects.

An opportunity has arisen for a Security Design Engineer in our Warrington office who will be working on projects for our clients.

What you will be doing:

• Lead site visits with the Head of Design/design team and act as the main contact for sub ‑ contract designers.
• Develop electronic security scoping and technical specifications following site visits and 3D scans.
• Work closely with sub ‑ contractor design teams to refine scopes and review their pricing, specifications, and technical submissions.
• Manage Tender Technical Queries (TQs) and maintain the TQ register.
• Support project and tendering teams with technical documentation for bids and orders.
• Ensure security procedures are followed on site and in the office, and assist with accreditation documentation for the GT AI business.
• Gather and interpret client requirements to propose compliant, secure design solutions.
• Collaborate with the Head of Design and delivery teams to ensure designs are value engineered, aligned to specifications, and compliant with legislation.
• Produce design documentation including layouts, specifications, schedules, network architecture, and cable schedules.
• Review and approve design deliverables and contribute to design plans and programmes.
• Identify potential design ‑ related changes (CEs/EWs) and manage variations through the Change Control Process, ensuring no scope creep.
• Promote innovation and challenge existing approaches to drive cost ‑ effective design solutions.

About You:

• Experience and knowledge of integrated security systems including, Access Control, Intruder Alarm, Analogue CCTV, IP CCTV, Audio Challenge, and Intercom systems.
• Experience of system integration into both local and remote ARC (Alarm Receiving Centre) and RVRC (Remote Video Response Centre) central security management systems
• Water company experience beneficial.
• Experience with AMTECH.
• Sound knowledge of security equipment and devices.
• BIM / PAS 1192
• Experience of producing URS and FDS documents (where applicable) to client briefs and specifications.
• Knowledge of CDM regulations and temporary works requirements.
• Possess an industry applicable ONC/HNC/B.Eng or NVQ equivalent.
• Possess a working knowledge of Microsoft packages (experience with AutoCAD software would be an advantage).

What We Can Offer in Return:

With an impressive order book of over £4.1 billion we are one of the industry’s leading principal contractors, affording you the opportunity to work on some of the UK’s most exciting projects offering you stability as well as the chance to stretch your capabilities and realise long held career goals. You will be joining diverse teams working at a high professional level with exceptional levels of commitment. With an ambitious strategy, we’re poised for further growth and success, so if you’re committed, talented and enthusiastic, Galliford Try is the right place for you.

We are committed to maintaining the physical and mental wellbeing of all our people, through our ‘Be Well’ programme which offers discounts on certain products, advice and support for a range of issues.

We invest in high-quality training for employees of all levels, from our leadership development framework to our apprenticeship programmes. Through our Career Paths initiative, individuals receive tailored training and support to fulfil their potential.

Our industry is all about creating talented teams that excel in their areas of expertise. As an employer, we know you are most motivated to give your best when you feel valued and engaged.

Our Agile Working programme empowers you with flexibility in when, where and how you work. Where appropriate, site and office-based employees can take advantage of a wide variety of working practices, offering different amounts of structure, regularity and flexibility to suit your needs as well as those of your wider team.

We put our people first and our benefits package reflects that by offering a comprehensive range of attractive options to help support your career on top of a competitive salary.

• Generous holiday entitlement, increasing with years of service, plus the opportunity to purchase further holidays
• A wide range of corporate discounts
• Cycle to Work schemes
• Regular Save as You Earn share purchase scheme
• Private medical scheme options are available for all salaried employees and our employee assistance programme also provides free 24/7 support to those who need it
• Paid for yearly membership to one recognised professional association relevant to your role

About us:

Galliford Try is one of the UK’s leading construction groups with a vision to continuously be a people-orientated, progressive business, driven by our values to deliver lasting change for our stakeholders and the communities we work in.

Our purpose is to improve people’s lives through building the facilities and infrastructure that communities need, providing opportunities for our people to learn, grow and progress, working with our supply chain to promote the very best working practice and caring for the environment in which we work.

We do this by holding true to our values, delivering excellence for our clients and the community, being passionate about our role in providing vital services, putting integrity at the heart of our business by doing the right thing, and collaborating with our clients, supply chain and stakeholders to deliver lasting change and long-term value.

Galliford Try’s Asset Intelligence business works predominantly within the UK’s Critical National Infrastructure market, focussing on Defence, Water, Energy, Transport and Telecommunications sectors. We deliver multi-site security programs, and our expertise in the planning, design and delivery processes, together with our CNI Security knowledge and experience, enables us to efficiently deliver fully integrated physical and electronic security programmes and portfolios of work on critical operational assets.

For more information on this role or to enquire about other positions available within our Specialist Services business please contact

Additional Information:

Galliford Try welcomes applications from candidates who would like to work full-time, reduced hours or flexibly and this will be discussed in more detail as part of the recruitment process.

We encourage, and would be grateful if, you could confirm any requirements we can reasonably fulfil to make this application a positive experience for you.

Don’t meet every requirement of the role? Studies have shown that some people are less likely to apply for jobs unless they meet every single qualification. At Galliford Try, we are committed to building a diverse, inclusive and authentic workplace, so if you’re excited about this role but your past experience doesn’t align perfectly with every requirement of the role, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

As a Disability Confident employer, we have committed to offer an interview to any candidate with a long-term health condition or disability that meet the essential criteria for the advertised position. Please contact the Resourcing Partner listed within the job advert if you believe this applies to you. We will also take the opportunity to discuss any adjustments required for your interview.

A full job description for this role is available upon request.

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Job Info

• Job Identification 3247
• Job Category Technical
• Posting Date 08/17/2026, 03:37 PM
• Apply Before 09/29/2026, 11:00 PM
• Job Schedule Full time
• Job Shift Day
• Locations Walton-On-Thames, Walton-On-Thames, KT12 2RF, GB

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