Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Advise clients on M365 security, design solutions, and lead implementations.
- Company: CyberOne, a leading Microsoft security partner with a collaborative culture.
- Benefits: Competitive pay, strong benefits, remote work, and clear career progression.
- Why this job: Make a real impact in cybersecurity while working with cutting-edge Microsoft technologies.
- Qualifications: Experience in M365 security, strong consulting skills, and ability to engage with clients.
- Other info: Join a dynamic team and tackle meaningful security challenges across various industries.
The predicted salary is between 36000 - 60000 £ per year.
CyberOne is a pure-play Microsoft security partner dedicated to helping enterprises realise the full value of the Microsoft Security portfolio—across Defender XDR, Sentinel, Entra, Purview, Intune, Copilot for Security and more. We combine deep technical expertise with outcome-driven services that accelerate secure cloud adoption, modernise threat protection and simplify compliance.
We are looking for an experienced Senior M365 Security Consultant to join our leading Microsoft Security Practice. In this role, you’ll help organisations design, improve, and mature their Cyber Security posture through the use of M365 Security and Compliance technologies. This is a client-facing, senior-level role where you’ll combine deep hands-on technical expertise with strong consulting skills. You’ll own engagements end-to-end: from discovery and strategy through to design and implementation.
If you enjoy solving complex security challenges, influencing stakeholders, and seeing the tangible impact of your work, this role gives you the space and trust to do exactly that.
What You’ll Be Doing
- Advise & Assess: Partner with clients to understand their business and security challenges, assess their Microsoft 365 environments, and identify meaningful improvement opportunities.
- Design & Deliver: Architect and implement security and compliance solutions across Microsoft 365, aligned to Microsoft best practices, Zero Trust, and regulatory requirements.
- Shape Strategy: Help clients define security strategies, roadmaps, and policies across organisations of varying sizes and maturity.
- Hands-On: Lead implementations, tenant migrations, and greenfield deployments translating designs into secure, usable solutions.
- Support Pre-Sales: Collaborate with sales teams on solution design, provide technical input, and contribute to Statements of Work and proposals.
What You’ll Bring
You’re an experienced M365 security professional who is comfortable working independently, engaging directly with customers, and making informed technical decisions. Strong experience with Microsoft 365 security and compliance technologies, including:
- Microsoft Purview
- Microsoft Defender for Endpoint
- Microsoft Defender for Office 365
- Microsoft Defender for Identity
- Microsoft Defender for Cloud Apps
- Microsoft Entra ID
- Microsoft Intune
Plus:
- Experience delivering M365 tenant migrations and greenfield deployments
- Ability to assess existing environments, identify gaps, and implement effective remediation
- Confidence explaining technical concepts to both technical and non-technical stakeholders
Preferred Certifications
- SC-100 – Microsoft Cybersecurity Architect
- SC-200 – Microsoft Security Operations Analyst
- SC-300 – Microsoft Identity and Access Administrator
- SC-400 – Microsoft Information Protection and Compliance Administrator
- MS-500 – Microsoft 365 Security Administrator Associate
- MS-102 – Microsoft 365 Administrator
What Sets You Apart
- You’re comfortable operating as a trusted advisor, not just a technical implementer
- You can influence stakeholders from engineers through to senior leadership
- You take a pragmatic, outcome-focused approach to security
- You enjoy variety and can manage multiple client engagements without losing quality
- You’re curious, motivated, and keep up with evolving threats and Microsoft capabilities
Why Join Us?
- CyberOne Ranked #79 Globally in MSSP Alert’s 2025 Top 250 MSSPs
- Work with experienced cybersecurity professionals on meaningful, high-impact engagements
- Exposure to a wide range of industries, challenges, and modern Microsoft security solutions
- A collaborative environment that values expertise, autonomy, and continuous learning
- Competitive compensation, strong benefits, and a clear path for career progression
If you’re passionate about Microsoft 365 security and want a role where your expertise genuinely makes a difference, we’d love to talk. Let’s redefine what it means to be secure. Together.
Senior M365 Security Consultant in City of Westminster employer: CyberOne
Contact Detail:
CyberOne Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior M365 Security Consultant in City of Westminster
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who work at CyberOne or similar companies. A friendly chat can open doors and give you insider info on the role.
✨Tip Number 2
Prepare for the interview by brushing up on your M365 security knowledge. Be ready to discuss specific technologies like Microsoft Defender and Purview, and how you've used them in past roles. Show us you know your stuff!
✨Tip Number 3
Don’t just focus on technical skills; highlight your consulting abilities too. Share examples of how you've influenced stakeholders and shaped security strategies. We want to see your impact beyond just implementation.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets noticed. Plus, it shows you're genuinely interested in joining our team at CyberOne. Let’s make it happen!
We think you need these skills to ace Senior M365 Security Consultant in City of Westminster
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the specific skills and experiences that align with the Senior M365 Security Consultant role. Highlight your expertise in Microsoft 365 security technologies and any relevant certifications to catch our eye!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're excited about joining CyberOne and how your background makes you the perfect fit for this role. Be genuine and let your personality come through.
Showcase Your Problem-Solving Skills: In your application, share examples of how you've tackled complex security challenges in the past. We love seeing candidates who can think critically and provide real-world solutions, so don’t hold back!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands and shows us you’re serious about joining our team at CyberOne!
How to prepare for a job interview at CyberOne
✨Know Your Microsoft Security Stuff
Make sure you brush up on your knowledge of Microsoft 365 security and compliance technologies. Be ready to discuss specific tools like Microsoft Defender and Purview, and how they can be applied in real-world scenarios. This shows you're not just familiar with the tech but can also think critically about its application.
✨Showcase Your Consulting Skills
Since this role is client-facing, practice articulating how you've successfully engaged with clients in the past. Prepare examples where you've assessed environments, identified gaps, and implemented solutions. Highlight your ability to influence stakeholders at all levels, as this will be key in your role.
✨Prepare for Scenario-Based Questions
Expect to face scenario-based questions that test your problem-solving skills. Think through potential security challenges a client might face and how you would address them using M365 tools. This will demonstrate your hands-on experience and strategic thinking.
✨Ask Insightful Questions
At the end of the interview, have some thoughtful questions ready about CyberOne's approach to security or their client engagements. This not only shows your interest in the company but also gives you a chance to assess if their values align with yours. It’s a two-way street!
