Microsoft/AWS Security Engineer in London

We are the better way to work in finance. As private equity’s value creation partner, we sit at the heart of PE—where sponsors and CFOs meet. Through financial consulting rooted in data, technology, and AI, we help clients drive value—supporting the office of the CFO to drive end-to-end value creation.

If you crave challenging work and are looking to grow, come solve complex issues alongside 1,400+ finance & technology experts in a supportive, collaborative environment. As we build our European footprint, the London office presents a unique entrepreneurial opportunity to shape our presence and accelerate growth across the region—while benefiting from the support and stability of an established, industry-leading firm.

We are seeking a versatile Security Engineer to join our small, fast-paced security team. This role supports a wide range of security functions, emphasizing hands-on technical expertise, proactive problem-solving, and adaptability across network security, cloud security, incident response, vulnerability management, and security tool administration.

This role can be based in our London office with the flexibility to work remotely 1-2 days a week, blending the best of both worlds for efficiency and collaboration.

• Create security automation through our XDR platform and in our other tools.
• Administer email security systems: respond to phishing attempts, maintain and improve filters, investigate suspicious email traffic, and provide quick technical response to threats.
• Deploy, integrate, and maintain diverse security tools: drive lifecycle management, automation of routine security operations, and ensure seamless integration with existing infrastructure.
• Support security awareness and technical training: deliver targeted education and assist users in following security best practices.
• Collaborate with IT and security leadership to assess risks and prioritize technical security tasks based on business urgency and threat landscape.
• Configure policies, tune rules, and troubleshoot firewall and traffic anomalies.
• Provide hands-on support for cloud security operations—design, implement, and monitor Azure networking (with emphasis on Azure Network Security Groups), enforce cloud security best practices, assess cloud risks, and collaborate on secure cloud architecture.
• Administer and optimize network infrastructure, including Meraki environments, with a focus on monitoring, troubleshooting, device configuration, and reviewing network security alerts.
• Manage end-to-end network troubleshooting: identify, analyze, and resolve network performance and security issues across LAN, WAN, and cloud-connected infrastructure.

2+ years of experience in security operations, with demonstrated responsibility for network and cloud environments.

• In-depth expertise in network management and troubleshooting—including Meraki, multi-vendor LAN/WAN, and cloud-connected scenarios.
• Working knowledge of scripting/automation (Python, PowerShell, Bash): ability to streamline security operations, automate repetitive tasks, and integrate systems.
• Proven experience with CrowdStrike (or similar XDR), SIEM platforms, and security tool deployment/integration.
• Hands-on experience with Azure networking and security groups, with a strong understanding of cloud security requirements.
• Strong incident response background, including containment, analysis, and reporting.
• Email security expertise (cloud-based filters, phishing response, suspicious traffic investigation).
• Experience supporting user security awareness/training initiatives.
• Experience with virtualized Layer 7 firewall configuration and troubleshooting.

CompTIA Network+, GIAC Security Essentials (GSEC) or CompTIA Security+, GIAC Continuous Monitoring Certification (GMON), GIAC Defensible Security Architect (GDSA).

We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. We do not discriminate on the basis of race, colour, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under law.

Please note that as per Accordion policy, we do not accept unsolicited resumes from third-party recruiters unless such recruiters are engaged to provide candidates for a specified opening and in alignment with our inclusive diversity values.