Senior Incident Response Analyst

OpenKrill; United States; On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Remote-first

Hybrid options

Wellbeing programs

Job summary

Sophos is seeking a Senior Incident Response Analyst to support MDR customers and MSPs within the Critical Incident Response Team (CIRT). You will lead investigations, contain threats, and guide remediation using Sophos technologies across diverse clients and countries.

The role emphasizes rapid decision-making, mentoring, and collaboration with internal teams to improve detection logic and response capabilities. Remote-first with possible hybrid requirements.

Qualifications

• 4+ years of cyber security investigations or 2+ years in incident response engagements
• Experience documenting technical findings for customers
• Knowledge of Windows, Linux, and macOS command/scripting basics
• Familiarity with MITRE ATT&CK and Cyber Kill Chain frameworks

Responsibilities

• Lead investigative execution of active cyber incidents for MDR customers and MSPs
• Mentor junior analysts with technical guidance and escalation support
• Identify initial access, persistence, and lateral movement to contain threats
• Coordinate with customers via meetings/calls to discuss incidents and remediation
• Analyze incidents for malware, ransomware, and other attack types
• Maintain detailed documentation of analyses and actions taken
• Collaborate with SophosLabs and Threat Hunting to improve detections
• Contribute to blogs/socials with investigative findings
• Create technical incident reports for MDR customers and MSPs

Skills

Investigation

Threat hunting

IR tooling

Documentation

MITRE ATT&CK

Windows/Linux/macOS

Tools

EDR/IDS/IPS

Job description

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.

Role Summary

Sophos is seeking an experienced and motivated Senior Incident Response Analyst to support Managed Detection and Response (MDR) customers and managed service providers (MSPs) within the Critical Incident Response Team (CIRT).

As a Senior Incident Response Analyst, you will lead the investigative execution of active cyber incidents, working directly with customers and MSPs to investigate, contain, and support remediation efforts. Utilizing Sophos technologies, you will work with both large and small organizations across multiple countries and levels of technical maturity. This is a fast-paced role that requires the ability to make quick context-based decisions to disrupt adversary activity.

What You Will Do

• Utilize Sophos technologies to investigate, contain, and respond to cyber incidents
• Mentor incident response analysts and MDR operations analysts by providing technical guidance, review, and escalation support
• Perform advanced incident response analysis to identify initial access, persistence, and lateral movement to contain and remediate threats
• Support MDR customers and MSPs by conducting phone calls and joining meetings to discuss cyber incidents, while often providing priority recommendations to contain, neutralize, and remediate
• Conduct analysis of cyber incidents for malware, ransomware, and other common attack types
• Maintain accurate and detailed documentation for analysis performed during cyber incidents
• Work closely with internal SophosLabs, Detection Engineering, and Threat Hunting teams to continuously expand and improve detection logic
• Work closely with Sophos MDR Operations teams in providing response, remediation guidance, and excellent customer service
• Where appropriate, contribute to Sophos blogs, social media, and other sources on adversary tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), and other investigative findings
• Evaluate new technologies and processes to improve the overall incident response capability
• Assist in creating accurate and detailed technical incident reports as a post-incident deliverable for MDR customers and MSPs

What You Will Bring

Essential:

• 4+years experience conducting cyber security investigations in a methodical manner and investigating threats or 2+years experience performing incident response engagements
• Understanding of network architecture and IT infrastructure
• Experience creating technical documentation and technical reports for customers
• Ability to work under high-pressure situations, when response time matters, to disrupt adversary activity
• Network and endpoint (macOS, Linux, Windows) investigation experience; IDS, IPS, EDR, and basic malware analysis
• Understanding of at least one of the following: OSQuery, SQL, and KQL
• Experience applying frameworks such as MITRE Attack and Cyber Kill Chain
• Ability to work some weekends and holidays
• Knowledge of Windows and Linux command and script interpreters

Desired:

• Advanced cyber security certifications (GCFE/GCFA, CompTIA CySA+, OSCP, etc.)
• Experience calling customers and providing excellent customer service
• Publications, either written or acknowledged, within the cyber security field

What's Great About Sophos?

• Sophos operates a remote-first working model, making remote work the primary option for most employees. However, some roles may necessitate a hybrid approach. While we are a remote first organization, applicants must have legal authorization to work in the jurisdiction where the position is posted, without requiring employer sponsorship.
• Our people – we innovate and create, all of which are accompanied by a great sense of fun and team spirit
• Employee-led diversity and inclusion networks that build community and provide education and advocacy
• Annual charity and fundraising initiatives and volunteer days for employees to support local communities
• Global employee sustainability initiatives to reduce our environmental footprint
• Global fitness and trivia competitions to keep our bodies and minds sharp
• Global wellbeing days for employees to relax and recharge
• Monthly wellbeing webinars and training to support employee health and wellbeing

Our Commitment To You

We’re proud of the diverse and inclusive environment we have at Sophos, and we’re committed to ensuring equality of opportunity. We believe that diversity, combined with excellence, builds a better Sophos, so we encourage applicants who can contribute to the diversity of our team. All applicants will be treated in a fair and equal manner and in accordance with the law regardless of gender, sex, gender reassignment, marital status, race, religion or belief, color, age, military veteran status, disability, pregnancy, maternity or sexual orientation. We want to give you every opportunity to show us your best self, so if there are any adjustments we could make to the recruitment and selection process to support you, please let us know.

Data Protection

If you choose to explore an opportunity, and subsequently share your CV or other personal details with Sophos, these details will be held by Sophos for 12 months in accordance with our Privacy Policy and used by our recruitment team to contact you regarding this or other relevant opportunities at Sophos. If you would like Sophos to delete or update your details at any time, please follow the steps set out in the Privacy Policy describing your individual rights. For more information on Sophos’ data protection practices, please consult our Privacy Policy Cybersecurity as a Service Delivered | Sophos