M365 Security Consultant

Avanade Inc.; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading technology solutions provider in Greater London is seeking an M365 Consultant/Senior Consultant to enhance clients' cybersecurity by implementing advanced Microsoft Threat Protection technologies. Responsibilities include designing solutions for threat detection, supporting incident response, and collaborating with stakeholders. Candidates should have expertise in Microsoft Sentinel, threat hunting, and a solid understanding of cybersecurity concepts. Join a firm dedicated to inclusion and innovation.

Qualifications

• Proven experience with Microsoft Sentinel and Defender tools.
• Hands-on experience with threat hunting using KQL.
• Strong understanding of infrastructure security.

Responsibilities

• Design and implement AV/EDR solutions for cyber threat detection.
• Develop and maintain cyber defence use cases and correlation rules.
• Perform threat hunting across Microsoft platforms.

Skills

Microsoft Sentinel

Microsoft Defender for Endpoint

KQL

Azure Logic Apps

Cyber defence concepts

Client-facing experience

Agile methodologies

Education

SC100 or equivalent

Tools

Microsoft Defender suite

Microsoft 365

Windows

Linux

Job description

As an M365 Consultant/Senior Consultant, you will help transform clients' cybersecurity posture by designing and implementing advanced Microsoft Threat Protection technologies. You will work directly with clients in a consulting capacity, supporting medium to large enterprise environments and contributing to robust Cyber Defence strategies across endpoints, identities, cloud, and collaboration platforms.

Key Responsibilities

• Design and implement AV/EDR solutions (e.g., Microsoft Defender for Endpoint) to detect and respond to cyber threats across major operating systems.
• Protect email, messaging, and collaboration platforms from phishing, spear phishing, BEC, and identity-related attacks.
• Develop and maintain cyber defence use cases, correlation rules, and attack chain detections across disparate systems.
• Design, implement, and integrate SIEM solutions-particularly Microsoft Sentinel-into Security Operations.
• Perform threat hunting across endpoints, identities, networking, cloud, and collaboration platforms in the Microsoft ecosystem.
• Handle L2-level incidents leveraging Microsoft Sentinel and Microsoft Defender tools.
• Support incident response, triage, threat modelling, and vulnerability remediation within Azure-hosted environments.
• Create, run, and troubleshoot Azure Logic Apps, playbooks, and Sentinel automation components.
• Collaborate with business and security stakeholders to define and enhance security standards and improve security posture.

Qualifications

• Technical Expertise: Proven experience with Microsoft Sentinel (architecture, deployment, analytics rules, workbooks, playbooks); Microsoft Defender for Endpoint and Defender for Cloud; SIEM/SOC operations; Azure Logic Apps; vulnerability remediation; incident response.
• Threat Hunting & Detection: Hands‑on experience using KQL, Microsoft Defender XDR, and threat intelligence sources to hunt threats and support investigations.
• Cyber Defence & Infrastructure Security: Strong understanding of cyber defence concepts, infrastructure security, and troubleshooting across the Microsoft ecosystem.
• Methodology: Familiarity with agile methodologies and backlog management.
• Collaboration & Communication: Strong communication skills, ability to work with cross‑functional teams, and experience in client‑facing environments.
• Technologies: Knowledge of Microsoft 365, Azure, Windows, Linux, and mobile operating systems.
• SC100 or equivalent desirable

Characteristics for Success

• Consultative and collaborative mindset; strong relationship builder.
• Resilient, adaptable, intellectually curious.
• Passionate about Microsoft security technologies (M365 Threat Protection, Defender suite, O365, Identity).
• Problem‑solver, quality‑driven, self‑motivated, and innovative.

Additional Information

Equal Employment Opportunity Statement

All employment decisions shall be made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law.

Job candidates will not be obligated to disclose sealed or expunged records of conviction or arrest as part of the hiring process.

Avanade is committed to providing veteran employment opportunities to our service men and women.

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About Avanade

As you bring your skills and abilities to Avanade, you'll get distinctive experiences, limitless learning, and ambitious growth in return. As we continue to build our diverse and inclusive culture, we become even more innovative and creative, helping us better serve our clients and communities. You'll join a community of smart, supportive collaborators to lift, mentor, and guide you, and to lean on your expertise. You get a company purpose‑built for business‑critical, leading‑edge technology solutions, committed to improving the way humans work, interact, and live. It's all here, so take a closer look!

Create a future for our people that focuses on

• Expanding your thinking
• Experimenting courageously
• Learning and pivoting

Inspire greatness in our people by

• Empowering every voice
• Encouraging boldness
• Celebrating progress

Accelerate the impact of our people by

• Amazing the client
• Prioritizing what matters
• Acting as one

We work hard to provide an inclusive, diverse culture with a deep sense of belonging for all our employees. Visit our Inclusion & Diversity page. Avanade believes that all persons are entitled to equal employment opportunities, and we do not discriminate against our employees, applicants, or job seekers because of their race, color, gender, religion, national origin, disability, veteran status, age, marital status, sexual orientation, genetic information, gender identity, or any other protected group status as defined by law.