As a Senior Threat Analyst – Tier I on our Managed Detection and Response (MDR) team, you will provide best-in-class monitoring, detection, and response services to proactively defend customer environments before attacks prevail

You will work alongside and contribute to a team of cyber threat hunters, incident response analysts, engineers, and ethical hackers by using enterprise, log analysis and endpoint collection systems to facilitate investigations, identification, and neutralization of cyber threats

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

Benefits





We encourage teams to get together in person periodically to help facilitate teamwork

Remote-first working model & hybrid options

Versatile start and end times for many roles

Leadership development program

Access to LinkedIn Learning

Global internal coaching program (Coach Match)

Periodic Sophos wellness days off for all Sophos to help employees relax and recharge

Global wellbeing program, which offers a range of wellbeing resources, including Sophos Wellbeing Webinars, Stress Management Toolkits, and Developing Resilience Courses

Free Employee Assistance Program (EAP) for confidential advice and counseling on a wide range of work and personal issues

Free annual subscription to the Calm app

Paid parental leave, caregiver leave & bereavement/compassion leave available

We host some unforgettable social experiences for our global teams including our music festival SOPH-Fest, go-karting, Sophmudder, and incredible holiday parties!

Our annual global fitness challenge, SOPH-Fit, sees thousands of employees taking part in our virtual global race around the world

Each quarter, we celebrate our exceptional global team by running the Sophos Values Awards, which recognizes and rewards employees who embody the Sophos values and who we are as a company

Health care benefits available worldwide

Bachelor’s degree in information technology, Computer Science, Cybersecurity or related field, or equivalent practical experienceAbility to interpret and analyze Windows event logs and other telemetry dataMust thrive within a team environment as well as on an individual basisCustomer-first mindset with professionalism and a focus on service excellenceExperience handling active threats, including containment, mitigation,



and recovery efforts during security incidentsFamiliar with techniques such as persistence, privilege escalation, lateral movement, and defense evasion, and able to identify these in real-world environmentsFamiliarity with common incident response workflows and security operations processesUnderstanding of core network concepts including TCP/IP, protocols, routing, and traffic analysisWorking knowledge of Windows operating systems (both workstation and server), with additional experience in Linux (Ubuntu, Debian, RedHat) or macOS environmentsA passion for cybersecurity, continuous improvement, and staying current on threat trends5+ years of hands‑on experience in a Security Operations Center (SOC), Managed Detection and Response (MDR) environment, or cybersecurity‑focused IT roleExposure to threat hunting methodologies and an understanding of attacker behavior and patternsDemonstrated experience contributing to real‑time incident response efforts and threat investigationsStrong analytical thinking and troubleshooting skills, with attention to detail in investigations and case documentationWillingness to participate in shift work including nights, weekends and holidays (our MDR service is 24x7x365)Excellent communication skills, with the ability to clearly explain findings to both technical and non‑technical audiencesProficient 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 alertsNatural curiosity and willingness to learn in a fast‑paced, ever‑changing threat landscapeFamiliarity with the MITRE ATT&CK; framework and its application in detection and responseExperience working with SIEM platforms and managing enterprise security telemetryAbility to write and interpret SQL queries for data analysis and investigationExperience with OSQuery and scripting skills, particularly in PowerShellRelevant and practical cybersecurity certifications (e.g., GSEC, GCIA, GCIH, PEN-200, Security Blue Team L1, TCM Academy SOC L1, or similar)

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📌 Senior Threat Analyst (Quebec City)
🏢 Sophos
📍 Quebec City