Senior Security Consultant

Job Title: Senior Security Consultant

Location: Office Based - Brighton

Job Type: Permanent, Full-Time

About Us

At Trident, we make IT a source of strength, helping organisations thrive so they can better support the people who rely on them every day.

We work in partnership with our clients to provide reliable IT services, practical guidance and people-focused support that strengthen their organisations and enable better outcomes.

Benefits

Joining Trident means becoming part of a supportive and collaborative environment where your contribution is recognised and your professional development is encouraged.

• 33 days' annual leave, including bank holidays, increasing by one day per year of service up to 40 days.
• Access to on-demand IT courses, practice tests and virtual labs.
• Bupa Employee Assistance Programme for you and your family.
• Cycle to Work scheme and vendor pricing on personal IT hardware and software.
• Microsoft Workplace Discount Programme.
• Central Brighton office with social spaces, regular events and a Refer-a-Friend bonus scheme.

About the Role

The Senior Security Consultant is a senior technical and client-facing role within Trident's Security & Compliance team. You will act as a trusted adviser and technical authority across Microsoft 365 security, identity, cloud controls and wider security services, helping clients understand risk and make practical, proportionate improvements.

• Act as a senior escalation point for complex Microsoft 365 security and compliance matters.
• Review client environments and design improvements across Microsoft Entra ID, Microsoft Defender, privileged access, device security, email protection, data protection and secure collaboration.
• Lead Microsoft 365 security projects, assessments, workshops and client improvement programmes.
• Work alongside Sales on security discovery, pre-sales conversations, proposals and solution design.
• Provide senior guidance across ThreatLocker, Managed Detection and Response, Inforcer and related security services.
• Assess emerging vulnerabilities and Microsoft security developments, translating them into clear internal and client action.
• Support governance and compliance requirements, including Cyber Essentials and ISO 27001.
• Coach junior colleagues, share knowledge and contribute to the continued development of Trident's security capability.

About You

We are looking for an experienced security professional who combines strong hands-on Microsoft expertise with excellent consultancy, commercial awareness and confident communication.

• Strong practical knowledge of Microsoft 365 security, Microsoft Entra ID and Microsoft Defender technologies.
• Experience reviewing, designing and implementing Microsoft 365 security controls and delivering related projects.
• Sound understanding of identity and access security, vulnerabilities, attack methods and risk-based remediation.
• Excellent client-facing skills, with the ability to explain complex risks and recommendations to technical and non-technical stakeholders.
• Experience supporting technical discovery, pre-sales or solution conversations and producing clear reports, scopes and improvement plans.
• Commercial awareness and the judgement to balance good security practice with business needs, operational impact and practical constraints.
• Ability to take ownership of complex issues and coach or mentor less experienced technical colleagues.
• Experience within an MSP, technology services or multi-client consultancy environment is highly desirable.
• Knowledge of Microsoft Purview, ThreatLocker, Inforcer, MDR services, endpoint, cloud, email or network security is advantageous.
• A certification such as SC-200, SC-100, AZ-500, CISSP, CISM, CompTIA Security+ or CySA+ is desirable.

What success Looks like

• Clients receive clear, practical and prioritised security recommendations and regard you as a credible trusted adviser.
• Microsoft 365 security reviews and projects are delivered to a strong technical standard with clear documentation and agreed outcomes.
• Sales and client-facing teams receive credible technical support during security opportunities and strategic conversations.
• Relevant vulnerabilities and security developments are identified, communicated and converted into proportionate action.
• Junior colleagues develop greater technical confidence and independence through effective coaching and knowledge sharing.

Next Steps

If you are an experienced security professional looking to lead high-impact investigations and help shape a growing security capability, we would love to hear from you. Apply today to be considered for this Senior Security Consultant opportunity:

• Submit your application with an up-to-date CV.
• Applications will be reviewed as they are received.
• Suitable candidates will be contacted to discuss the role further.
• Successful applicants will be invited to attend an interview.
• Employment offers will be subject to satisfactory pre-employment checks.

Please note this role may be advertised under a different title than that used internally.