Senior Threat Researcher - TTP Detection

United Kingdom
Threat Intelligence – Threat Research and Engineering (SophosLabs) /
/ Remote
Sophos is a worldwide leader in next-generation cybersecurity, protecting more than 500,000 organizations and millions of consumers in more than 150 countries from today’s most advanced cyberthreats. Powered by threat intelligence, AI and machine learning from SophosLabs and SophosAI, Sophos delivers a broad portfolio of advanced products and services to secure users, networks and endpoints against ransomware, malware, exploits, phishing and the wide range of other cyberattacks. Sophos provides a single integrated cloud-based management console, Sophos Central – the centerpiece of an adaptive cybersecurity ecosystem that features a centralized data lake that leverages a rich set of open APIs available to customers, partners, developers, and other cybersecurity vendors. Sophos sells its products and services through reseller partners and managed service providers (MSPs) worldwide. Sophos has major hubs around the globe. More information is available at

Threat hunter? Programmer? Data-driven? 
We have a fantastic opportunity here at Sophos Labs for a Threat Researcher to join our global team of behavior-based detection engineers, to hunt, to research, and to add real-time detection for suspicious activity across our customer environments.
Our team of skilled security experts combine their passion to detect & disrupt cyber-attacks with their capability to develop classification rules that can cut through the noise in modern computing environments to tease out attacker’s nefarious activities.
You are intrinsically motivated to understand the core logic behind malware and hacking attacks, to find & predict new ways attackers will modify their techniques, and take great satisfaction in developing robust detection logic that is immune to evasive actions. You will be responsible for writing rules that are able to signal early to late-breaking IOCs that highlight customers under attack, which are the foundation of Sophos next-gen approach.
Above all - you enjoy thinking creatively; combining your deep technical knowledge, your tenacity for innovation, and your can-do attitude to solve complex and challenging problems on a daily basis.
Our team is active in the wider threat research community. Take a look at some recent publications:

As a TTP Detection Engineer, your problem domain will be:

    • Understanding malware kill chain & hands-on-keyboard attacks
    • Accurate & efficient classification of malicious & suspicious behavior
    • Mapping IOCs to MITRE Att&ck matrix

Key Responsibilities

    • Author classification rules, for both Endpoint & Cloud scenarios, to identify malicious & suspicious use of TTPs
    • Analyze real world kill chains to discover new TTPs and gaps in coverage
    • Measure and tune TTP coverage through data mining, customer telemetry & internal sandbox feeds
    • Build & maintain playbooks on threat actor TTPs

Skills & Experience

    • Strong knowledge of Windows operating system, internals & forensic tools
    • Programming experience, Python/Lua
    • Excellent grasp of MITRE Att&ck tactics, techniques & simulation
    • Familiar with computational cost analysis & problem solving to minimize impact
    • Bachelor degree in Computer Software (Computer Security preferable)
    • Big data experience, Elastic Search, Kibana, Redshift

What's Great About Sophos?
·   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 that 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.  If you have any questions about Sophos’ data protection practices, please contact