121 Best data analyst Jobs in Crowthorne (November 2025)

Leidos

Cyber Defence Analyst

21 days ago

Farnborough

Description Location: Farnborough, UK Looking for an opportunity to make an impact?.. Role Overview: This is an opportunity to join a team of highly skilled and innovative network defenders, and the best group of individuals out there. Leidos’ Cybersecurity Intelligence and Response Team (CSIRT) has an immediate opening for a motivated Cyber Defense Analyst. Leidos is an international company made up of over 47,000 employees that provides Defense, Intelligence and Health Products to our customers. Our goal is to stay ahead of, and maintain a technical advantage over our adversaries using the latest technical advancements, including custom built cybersecurity capabilities. As a key part of the team, your responsibilities will include: • being a Splunk SME and using your experience performing threat hunting, and tactical analysis of ongoing attacks by criminal and nation state actors, • perform data analysis, incident response, investigative analysis, and research on existing and emerging cyber threats, particularly those directed against Leidos' global networks, • be expected to "think like an adversary" and engage in threat hunting operations leveraging your understanding of the tactics, techniques and procedures employed by advanced threats combined with intelligence from multiple sources, • provide reporting and briefings to other teams and leadership in order to maintain appropriate levels of situational awareness In this position, you will have the ability to grow through training opportunities, conferences and collaboration with industry peers and adjacent parts of our business. You will be challenged and provided a tremendous opportunity for growth in a highly collaborative and supportive environment. Key Responsibilities: • Analyse network and host activity associated with both successful and unsuccessful intrusions by advanced attackers, • Perform network traffic analysis utilising raw packet data, net flow, IDS, and custom sensor output, • Support enterprise incident response efforts, • Leverage understanding of tactics, techniques and procedures associated with advanced threats to create and add custom signatures that mitigate highly dynamic threats to the enterprise, • Employ advanced forensic tools and techniques for attack reconstruction and intelligence gathering, • Proactively research emerging cyber threats. Apply analytical understanding of attacker methodologies and tactics, system vulnerabilities, and key indicators of attacks and exploits, • Contribute to threat intelligence reports and briefings that provide situational awareness of cyber threats impacting the company's global network infrastructure, to every level of the organisation, • Participate in threat hunt operations using known adversary tactics, techniques and procedures, as well as indicators of attack, in order to detect advanced threats to the enterprise, • Collaborate using information and knowledge sharing networks and professional relationships to achieve common goals, • Provide on-call support for incident response efforts outside of core hours as needed Required Skills/Qualifications: • Bachelors Degree and strong relevant experience in cyber security or network defense; or strong relevant experience with relevant certifications (CISSP, SANS GIAC, CEH, etc.), • Experience with Splunk or other SIEM-type platform, • Experience in conventional network\host-based intrusion analysis, digital forensics, or malware analysis, • Experience performing "deep dive" analysis and correlation of log data from multiple sources including PCAP and forensic artifacts, • Experience leading and contributing to incident response activities, • Strong understanding of Operating Systems and Network Protocols, • Proficiency with MS Windows administrative tools, and the Unix/Linux command line Preferred Skills/Qualifications: • Understanding of behavioral based threat models, including ATT&CK, Cyber Kill Chain, Diamond Model, etc., • Capable and comfortable communicating actionable threat intelligence to both technical and executive-level stakeholders, • Familiarity with common languages (like Perl and Python) to parse logs, automate processes, and integrate systems, • Previous experience as Threat Researcher and/or Intelligence Analyst, • Experience with dynamic malware analysis, and reverse engineering, • Experience in cryptography or cryptanalysis, • Ability to create, modify, and implement both Snort and YARA signatures, • Published research papers at conferences or through other mediums (blogs, articles), • Working knowledge of Computer Network Exploitation (CNE), Computer Network Attack (CNA) and Computer Network Defense (CND) tools and techniques, • A deep understanding of advanced cyber threats targeting enterprises, along with the tools, tactics, and procedures used by those threats, • Experience applying threat and data modeling, advanced data correlation, and statistical analysis to develop alerts, notable events, investigative dashboards, and metrics driven reports Clearance Requirements: • SC required to Start, • SC required for the role Intrigued? We’d love to hear from you... What we do for you: At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance. We provide an employment package that attracts, develops and retains only the best in talent. Our reward scheme includes: • Contributory Pension Scheme, • Private Medical Insurance, • 33 days Annual Leave (including public and privilege holidays), • Access to Flexible benefits (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme), • Flexible Working Scheme Commitment to Diversity: We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages please let us know, and we will respond in a way that best fits your needs. Who We Are: ___ – we work to make the world safer, healthier, and more efficient through technology, engineering and science. Leidos is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation. What Makes Us Different: Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You can inspire change. Collaboration: having flexibility to do your job is one of our core benefits, enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours. People: Leidos empowers people from every background to be themselves and gives you the tools to learn new skills by enabling growth whilst developing. We believe that extraordinary people need opportunities to grow, to be inspired and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that enhance your future. At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.” If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. £47,500.00-£60,900.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. #Remote

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