Senior IT Security Engineer

Senior IT Security Engineer London (Hybrid) £80,000 - £85,000 DOE + Bonus + Benefits Join a leading London-based broker and market maker with offices worldwide! We are looking for a Senior IT Security Engineer to play a vital role in safeguarding critical infrastructure and data, working as part of a close-knit, expert IT Security team. The Role You will be instrumental in developing, implementing, and maintaining security solutions that protect systems from ever-evolving cyber threats. You'll serve as the technical lead, drive key security initiatives, and play a pivotal role in mentoring junior team members. Key Responsibilities Monitor, manage, and respond to threats via SIEM, SOAR, and EDR platforms Conduct vulnerability scans and support remediation and risk mitigation efforts Oversee WAF, DDoS, VPN, and perimeter firewalls Manage Email and Web Security Gateways Administer MFA, SSO, PAM, MDM/MAM, and Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS systems Deliver cybersecurity awareness training and lead ad-hoc security projects Support and resolve issues identified during penetration testing Ideal Experience We're looking for someone with strong hands-on experience in most of the following technologies: Essential: CrowdStrike EDR Mimecast Duo, Okta Rapid7 IVM, Tenable IO or Nessus Palo Alto Firewalls, InTune, Entra ID, Active Directory Desirable: Imperva WAF, Menlo Security, Cisco Secure Access/Umbrella, KnowBe4, AppCheck Ivanti or Automox patching Kali Linux, Metasploit, NMAP, BurpSuite Candidate Profile Professional certifications such as CISM, MS SC100/200/900, OSCP are advantageous Background in financial services, SOC environments, or penetration testing preferred Strong interpersonal and communication skills, with the ability to engage across teams and deliver training effectively Able to manage multiple priorities and collaborate cross-functionally What's on Offer Competitive salary 25 days annual leave plus bank holidays Discretionary annual bonus scheme Contributory pension (SIPP), life assurance, income protection Interest-free season ticket loan Subsidised gym membership Ready to step into a key security leadership role with one of London's premier trading firms? Apply now and help us secure the future of global trading May & Stephens Ltd is acting as an Employment Agency in relation to this vacancy