Senior Threat Analyst 1

About Us Sophos is a cybersecurity leader defending 600,000 organizations globally with an AI-driven platform and expert-led services. Sophos meets organizations wherever they are in their security maturity and grows with them to defeat cyberattacks. Its solutions combine machine learning, automation, and real-time threat intelligence with frontline human expertise from Sophos X-Ops to deliver advanced, 24/7 threat monitoring, detection, and response.   Sophos offers industry-leading managed detection and response (MDR) alongside a comprehensive portfolio of cybersecurity technologies — including endpoint, network, email, and cloud security, extended detection and response (XDR), identity threat detection and response (ITDR), and next-gen SIEM. Together with expert advisory services, these capabilities help organizations proactively reduce risk and respond faster, with the visibility and scalability needed to stay ahead of evolving threats.   Sophos goes to market with a global partner ecosystem, including Managed Service Providers (MSPs), Managed Security Service Providers (MSSPs), resellers and distributors, marketplace integrations, and cyber risk partners, giving organizations the flexibility to choose trusted relationships when securing their business. Sophos is headquartered in Oxford, U.K. More information is available at www.sophos.com. What You Will Do

• Monitor, investigate, and respond to alerts generated by the Sophos security stack (including EDR/XDR capabilities)
• Lead and mentor Tier I Analysts through escalated cases, ensuring thorough and accurate investigation practices.
• Perform end-to-end analysis on suspicious activity to assess scope, impact, and risk
• Identify and respond to cyber threats across customer environments using approved playbooks and tooling
• Accurately document findings, investigative steps, and outcomes in the MDR case management platform
• Conduct threat hunting to identify potential threats throughout the MDR customer base
• Investigate phishing emails, suspicious binaries, and behavioral anomalies
• Support detection tuning by identifying recurring false positives and suggesting improvements
• Stay informed on threat actor behaviors, MITRE ATT&CK techniques, and Sophos threat research updates
• Proactively research emerging IOCs, active exploits, and vulnerabilities to stay ahead of evolving threats
• Contribute to internal knowledge bases, documentation, and continuous improvement initiatives
• Participate in shift rotations and ensure timely, detailed handovers between global teams
• Provide detection and response support for active security incidents
• Manage case workflows: create cases, track progress, and follow up with clients until resolution
• Engage with clients via chat, phone, and tickets as part of case handling
• Assist with developing and refining Security Operations processes, playbooks, and tooling feedback

What You Will Bring

Essential

 

• 3+ years of hands-on experience in a Security Operations Center (SOC), Managed Detection and Response (MDR) environment, or cybersecurity-focused IT role
• Proficient in the use of endpoint and network security tools (e.g., EDR, IDS/IPS, malware detection platforms) with the ability to validate and triage complex alerts
• Working knowledge of Windows operating systems (both workstation and server), with additional experience in Linux (Ubuntu, Debian, RedHat) or macOS environments
• Ability to interpret and analyze Windows event logs and other telemetry data
• Understanding of core network concepts including TCP/IP, protocols, routing, and traffic analysis
• Demonstrated experience contributing to real-time incident response efforts and threat investigations
• Exposure to threat hunting methodologies and an understanding of attacker behavior and patterns
• Experience handling active threats, including containment, mitigation, and recovery efforts during security incidents
• Familiar with techniques such as persistence, privilege escalation, lateral movement, and defense evasion, and able to identify these in real-world environments
• Familiarity with common incident response workflows and security operations processes
• Strong analytical thinking and troubleshooting skills, with attention to detail in investigations and case documentation
• Excellent communication skills, with the ability to clearly explain findings to both technical and non-technical audiences
• Customer-first mindset with professionalism and a focus on service excellence
• Must thrive within a team environment as well as on an individual basis
• Natural curiosity and willingness to learn in a fast-paced, ever-changing threat landscape
• A passion for cybersecurity, continuous improvement, and staying current on threat trends
• Bachelor's degree in information technology, Computer Science, Cybersecurity or related field, or equivalent practical experience
• Ability to communicate in English
• Willingness to participate in shift work including nights, weekends and holidays (our MDR service is 24x7x365)

 

Desirable

 

• Familiarity with the MITRE ATT&CK framework and its application in detection and response
• Experience working with SIEM platforms and managing enterprise security telemetry
• Ability to write and interpret SQL queries for data analysis and investigation
• Experience with OSQuery and scripting skills, particularly in PowerShell
• Relevant and practical cybersecurity certifications (e.g., GSEC, GCIA, GCIH, PEN-200, Security Blue Team L1, TCM Academy SOC L1, or similar)