Cyber Essentials Assessor
Key Sigma Ltd – Cheltenham, GL51 4GA
Job Title: Cyber Essentials Assessor
Location: Cheltenham / Shurdington, GL51 4GA
Salary: Competitive package with bonus scheme
Employment Type: Full-time
About KEYSIGMA
KEYSIGMA is a fast-growing cyber security consultancy with big ambitions. Our cyber risk assurance business provides consultancy, testing, certification, assurance, advice and practical support to help clients manage their technology risks and move forward with confidence.
We deliver high-quality Cyber Essentials and Cyber Essentials Plus consultancy and certification services, supporting organisations of all sizes to understand the requirements, improve their security posture, and achieve certification.
As demand for our services continues to grow, we are expanding our certification team and are now looking for a qualified Cyber Essentials Assessor to join us in a dedicated delivery role.
This role is ideal for someone who is already qualified as a Cyber Essentials Assessor and wants to build a long-term career in cyber assurance, certification and consultancy.
For the right person, this role offers a clear development pathway into Cyber Essentials Plus assessment work and, over time, potentially into wider certification and assurance services, including Defence Cyber Certification and other cyber security frameworks.
The Role
As a Cyber Essentials Assessor, you will support clients through the Cyber Essentials certification process, review assessment submissions, provide clear and practical guidance, and help organisations understand what they need to do to meet the requirements of the scheme.
You will work as part of KEYSIGMA’s Cyber Essentials and Cyber Essentials Plus certification team, supporting client delivery, evidence review, remediation guidance, and certification decision-making in line with IASME scheme requirements and KEYSIGMA’s internal quality standards.
This is a hands-on assessment and client-facing role. You will be expected to communicate clearly, manage your workload effectively, maintain accurate records, and deliver assessments to a consistently high standard.
You will also have the opportunity to develop your technical knowledge and progress your career. Depending on your performance, capability and business needs, this may include training and development towards Cyber Essentials Plus assessment delivery, NCSC Cyber Advisor capability, Defence Cyber Certification, ISO 27001, and wider cyber assurance work.
Key Responsibilities - Cyber Essentials assessment delivery, client support and quality
The role will involve reviewing Cyber Essentials assessment submissions in line with IASME requirements, assessing client responses and supporting evidence accurately and consistently, and identifying any gaps, non-compliances or areas requiring clarification.
You will provide clear, practical and client-friendly guidance to help clients understand the requirements of the scheme and the remediation actions needed to achieve certification. This will include supporting clients through remediation and reassessment where required, while maintaining a positive and professional client experience from initial assessment through to certification.
You will act as a professional point of contact for Cyber Essentials clients, communicating clearly by email, phone and video call, and escalating more complex technical or scheme-related issues where appropriate.
You will also be responsible for recording assessment outcomes clearly, maintaining accurate assessment records, and ensuring assessments are completed efficiently and in line with KEYSIGMA’s internal processes, templates, quality controls and service expectations.
As part of the wider team, you will support consistency and quality across Cyber Essentials assessment delivery, contribute to internal knowledge sharing and process improvement, and work closely with Cyber Essentials Plus assessors, Cyber Advisors, apprentices and senior team members. As your experience develops, you may also support junior team members and help ensure the certification service remains organised, professional and scalable.
Career development and progression
· Building deeper technical knowledge across Cyber Essentials and Cyber Essentials Plus.
Developing practical understanding of vulnerability management, secure configuration, MFA, cloud services, access control and endpoint security.
· Working towards progression into Cyber Essentials Plus assessment delivery, subject to performance and business needs.
· Developing awareness of wider assurance frameworks, including Defence Cyber Certification and ISO 27001.
· Contributing to KEYSIGMA’s growing cyber certification and assurance capability
About You
You will already be a qualified Cyber Essentials Assessor and will be looking for a role where you can apply that experience in a supportive, professional and growing consultancy environment.
You may currently be working in Cyber Essentials assessment, cyber security support, IT assurance, technical support, compliance, or a related role. You will be confident working with clients, reviewing information carefully, and explaining requirements in a practical and approachable way.
This role would suit someone who enjoys detail, takes pride in quality, and wants to develop beyond Cyber Essentials into more technical and advanced assurance work over time.
We are looking for someone who is reliable, organised, clear in their communication, and genuinely interested in helping clients improve their cyber security.
Essential Requirements
· Certified IASME Cyber Essentials Assessor.
· Experience assessing Cyber Essentials submissions.
· Confidence working directly with clients.
· Good attention to detail and accurate record keeping.
· Organised approach to workload management.
· Ability to follow internal processes and quality standards.
· Positive, professional and client-focused attitude.
· Willingness to continue learning and developing technically.
· Full-time attendance at our Cheltenham / Shurdington office.
Desirable Requirements
· Experience supporting Cyber Essentials Plus assessments.
· Experience in an IT, cyber security, technical support, compliance or consultancy environment.
· Understanding of Microsoft 365, cloud services, MFA, endpoint security and secure configuration.
· Awareness of ISO 27001, Defence Cyber Certification or other assurance frameworks.
· Experience using assessment portals, ticketing systems, CRM systems or documentation platforms.
· Any broader cyber security, IT or governance qualifications
Training and Development
KEYSIGMA is committed to developing people and supporting long-term career progression. We will provide ongoing training, mentoring and development to help you grow your capability and progress within the business.
Subject to performance, aptitude and business needs, your development pathway may include:
· Progression towards Cyber Essentials Plus assessment delivery.
· Exposure to technical testing, vulnerability assessment and remediation support.
· Development towards NCSC Cyber Advisor capability.
· Exposure to Defence Cyber Certification requirements.
· Experience across ISO 27001, cyber assurance and wider consultancy services.
· Mentoring from experienced assessors, consultants and senior leadership.
Essential Security and Right to Work Requirements
Applicants must have full and permanent right to work in the UK. Unfortunately, we cannot offer visa sponsorship for this role.
Please note that, as part of the recruitment process, financial, criminal record and reference checks may be carried out by an authorised third party.
Diversity and Inclusion
We are proud to be an equal opportunities employer with a commitment to creating an environment that values equality, encourages diversity, and contributes to an inclusive organisational culture.
All qualified applicants will be considered for employment irrespective of legally protected status.
Recruitment Agents
We do not engage with recruiters and will not accept unsolicited CVs or candidate introductions.
Important Information for Candidates
Candidates are advised to read our Candidate Privacy Notice before applying for any role with us. The notice explains how personal data provided as part of the recruitment process will be collected, processed, stored and protected.
www.keysigma.co.uk/Candidate_Privacy_Notice/
To Apply
Please send your CV and a short covering note explaining your interest in the role and why you would be a good fit for KEYSIGMA.
Ability to commute/relocate
Cheltenham / Shurdington, Gloucestershire: reliably commute or plan to relocate before starting work.
Ability to commute/relocate:
- Cheltenham GL51 4GA: reliably commute or plan to relocate before starting work (required)
Application question(s):
- Are you willing to undergo third-party financial, criminal record and reference checks as part of the recruitment process?
- Are you a current resident in the United Kingdom?
Licence/Certification:
- Cyber Essentials Assessor (required)
Work authorisation:
- United Kingdom (required)
Work Location: In person
