LSEG Security Operations is a central function employing people, process and technology to continuously monitor and respond to cyber-security incidents. Security Operations spans multiple domains including cyber threat intelligence, cyber threat detection, data loss prevention and cyber incident response.
This role sits within the Cyber Threat Intelligence (CTI) team and will provide proactive analysis of the risks to LSEG; help track current cyber threats; and develop and curate threat indicators to help improve the overall quality of LSEG’s defences.
Key Responsibilities- Triage, investigate and remediate threat intelligence-driven events
- Partner with other Security Operations teams and the wider LSEG cyber-security teams to conduct threat intelligence investigations.
- Identify and evaluate new sources of intelligence and integrate into monitoring technologies.
- Develop critical intelligence partnerships to develop and curate high quality threat analysis and indicators.
- Perform cyber threat intelligence activities across the intelligence lifecycle, maintaining a standard of the highest quality and confidentiality across multiple geographies.
- Stay up-to-date with current vulnerabilities, attacks, and counter-measures.
- Research, develop and implement detection rules based on a solid understanding of adversary tactics, techniques and procedures
- Background in collecting, analysing, and interpreting data from various sources, detailing the results and preparing substantial analysis products.
- Keen interest in geo-political events and their impact on cyber threat actor activity
- Awareness of open-source intelligence techniques and platforms.
- Demonstrable working knowledge of networks including the TCP/IP stack, typical organisation architectures, and common protocols abused by malware.
- Experience in security event analysis and triage, incident handling and root-cause identification.
- Understanding of tools, techniques and procedures that attackers use to compromise organisations, ideally from direct experience.
- Ability to work in a fast-paced environment, whilst remaining calm under pressure and possessing the agility to work on multiple projects in parallel
- Strong verbal and written communication skills and an ability to collaborate effectively across multiple teams.
- Preferred security industry specific and core technical accreditations such as OSCP, GIAC, CCNA but not essential
- Preferred competence with one or more programming/scripting languages (e.g. Python, PowerShell, Java, C#) but not essential
- Is willing to go through Government or Industry security clearance process when required.
- Experience with local and multiple country regulations governing cyber intelligence processing and handling of sensitive data.
- Experience conducting cyber threat hunting operations using known adversary tactics, techniques and procedures to detect advanced threats to the enterprise.
- Familiarity with policies, standards and security frameworks e.g. NIST, CIS, MITRE ATT&CK.
Career Stage:
Senior AssociateLondon Stock Exchange Group (LSEG) Information:
Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.
LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.
Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.
Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.
We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.
You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.
LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.
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If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.
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What We Do
LSEG (London Stock Exchange Group) is a diversified international markets infrastructure business —earning our clients’ trust for over 300 years. That legacy of customer-focused excellence ensures that you can rely on our expertise in capital formation, intellectual property and risk and balance sheet management.
As global leaders in financial indexing, benchmarking and analytic services, we offer unrivalled access to international capital markets. Our high-performance technology solutions enable companies worldwide to access funds for growth and development. And with our Data & Analytics, Capital Markets and Post Trade divisions, we provide a comprehensive, integrated suite of trusted financial market infrastructure services that help our customers pursue—and achieve—their ambitions.
You can count on our open access model for unparalleled partnership, flexibility, stability, and support across all of our businesses. That’s how we make a difference— ensuring people can meet their potential—worldwide.









