Senior Security Analyst in London

Cyderes (Cyber Defense and Response) is a pure-play, full life-cycle cybersecurity services provider with award-winning managed security services, identity and access management, and professional services designed to manage the cybersecurity risks of enterprise clients. We specialize in multi-technology, complex environments with the speed and agility needed to tackle the most advanced cyber threats. We leverage our global scale and decades of experience to accelerate our clients' cyber outcomes through a full lifecycle of cybersecurity services. We are a global company with operating centers in the United States, Canada, the United Kingdom, and India.

About the Job:

The Managed Services Senior Security Analyst is responsible for security solutions for clients. The Senior Security Analyst will demonstrate the capacity to consistently meet and exceed client expectations, representing and reinforcing the Cyderes brand through positive interaction with other teams within the company. Perform deep dive investigations into security threats, understand and implement MITRE mapping to identify customers' current security posture.

Responsibilities:

• Provide overall guidance, instruction, mentorship, and leadership to other Security Analysts.
• Perform triage and advanced analysis tasks across endpoint, server, and network infrastructure.
• Perform Threat Hunting on customer networks to detect, isolate threats, and provide recommendations.
• Provide proactive security investigation and searches on client environments to detect malicious activities.
• Coordinate incident investigations and deep dive analysis on detected threats.
• Understand and identify indicators of attack and compromise in alerts, by hunting through data, and from review of investigation notes.
• Have full understanding of the MITRE ATT&CK framework, mapping clients' use cases to tactics and techniques.
• Update documentation and runbooks to ensure repeatable analysis.
• Actively participate in an after-hours on-call rotation as Incident Controller.
• Scope customer security incidents.
• Document and communicate recommendations and guidelines based on results of analysis.
• Analyze, review, and provide raw log data for more insight into escalations through SIEM.
• Communicate effectively orally and in writing.
• Maintain current knowledge and understanding of the threat landscape.

Requirements:

• 5 or more years of progressing/in-depth IT security experience.
• Practical experience in a senior role within the last three years and demonstrated ability to carry out the functions of the job.
• System Administration experience (Windows, Unix/Linux, Mac).
• Advanced understanding of networking concepts and ability to analyze network artifacts.
• Demonstrate experience in using Endpoint Detection and Response software (Sentinel1, Crowdstrike, Defender, etc.).
• Advanced knowledge of at least one leading SIEM platform (Sentinel, Splunk, Elastic, IBM Qradar, Chronicle, etc.).
• Possess at least one industry certification (Sec+, CEH, SANS Certification such as GCIH, GCIA, GSEC, GMON, OSCP, etc.) or working towards a related certification.
• Prior knowledge of SOAR platforms such as Siemplify, FortiSOAR, etc.
• Expert-level analysis of security events.
• Basic scripting or development experience in one of the following languages: Python, JavaScript, PowerShell, bash, etc.