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Vice President, Cybersecurity Data Scientist

Job Description

About CLS:

CLS is the trusted party at the centre of the global FX ecosystem. Utilized by thousands of counterparties, CLS makes FX safer, smoother and more cost effective. Trillions of dollars’ worth of currency flows through our systems each day.

Created by the market for the market, our unrivalled global settlement infrastructure reduces systemic risk and provides standardization for participants in many of the world’s most actively traded currencies. We deliver huge efficiencies and savings for our clients: in fact, our approach to multilateral netting shrinks funding requirements by over 96% on average, so clients can put their capital and resources to better use.

CLS products are designed to enable clients to manage risk most effectively across the full FX lifecycle – whether through more efficient processing tools or market intelligence derived from the largest single source of FX executed data available to the market.

Our ambition to make a positive difference starts with our people. Our values underpin everything that we do at CLS and define our working environment:

  • Pivotal purpose
  • Trusted guardian
  • Targeted innovation
  • Facilitate connections
  • Delivering excellence
  • Inclusive culture

Job Information:

  • Functional Title: Cybersecurity Data Scientist
  • Department: IT Security, Cyber Threat Intelligence
  • Corporate Level: Vice President
  • Reports To: Executive Director
  • Location: London, on-site 2 days per week

Job purpose:

CLS is seeking a highly motivated, self-driven Cybersecurity Data Scientist to join a global threat intelligence team. The role will be located in London, UK. The position will report to the Head of Cyber Threat Intelligence and Proactive Cyber Defense and will involve applying advanced statistical analysis, machine learning, and data engineering to identify, detect, and mitigate digital threats. The ideal candidate will be aware of industry trends and frameworks and how they could impact our business, including threat actor groups, their TTPs, intrusion activities. The candidate will work in support of the Cybersecurity Operations, Cyber Threat Intelligence, and Threat Hunting teams. This role will also be responsible for mentoring others on the team.

This position requires someone with an analytical mind, a quick learner, and the ability to create and deliver briefings, propose, and execute program initiative’s/improvements, and collaborate with a wide range of key internal and external stakeholders.

Job Description:

  • Develop and implement machine learning models (i.e. anomaly detection, classification) to identify patterns indicating malicious activity, malware, or insider threats
  • Clean normalize, and manage massive datasets from disparate security systems (SIEM, firewalls, endpoints) to make them usable for analysis
  • Analyze historical security data and external threat intelligence to forecast potential attack vectors
  • Present complex technical findings via dashboards to non-technical stakeholders
  • Work with CTI analysts to produce reports for both executive and technical stakeholders and be able to brief all stakeholders.
  • Develop and maintain clear documentation of activities, findings, and lessons learned
  • Assess emerging threats against our operational environment and work in partnership with our security teams for detection, mitigation, and remediation efforts
  • Perform trend and correlation of cyber intelligence for recommendation-based countermeasures
  • Support and engage in incident response investigations
  • Review other analysts work and provide mentorship and guidance

Experience:

  • 5-7+ years of direct cybersecurity related data scientist experience
  • 5+ years of progressive experience in information security (cyber security) field, preferable in Security Operations or Incident Response roles
  • Understanding of intelligence lifecycle and risk management
  • Knowledge of fundamentals of threat actors’ TTP
  • Understanding of IOC validation practices and sources
  • Familiarity with MITRE ATT&CK framework and mapping
  • Excellent interpersonal and relationship management skills
  • Individual contributor whilst also contributing to a small team
  • Self-motivated with ability to work with minimal supervision

Qualifications/Certifications:

  • Bachelor’s Degree in Cybersecurity studies, Intelligence Studies, International Relations, Economics, Computer Science, or related discipline
  • Security certification such as SANS GIAC (or equivalent) ideally GMLE or CERT Applied Data Science for Cybersecurity Professional, or working towards certification (or equivalent), CISSP and Security+
  • High proficiency in Python and SQL
  • Experience with threat intelligence and SOC/CIRT interaction
  • Splunk experience is highly preferred
  • Experience with SIEM, EDR solutions, network monitoring tools, and other cyber security tools
  • Experience with scikit-learn, tensorflow, or pytorch
  • Experience with big data frameworks such as Hadoop, Spark, or Kafka
  • Strong knowledge of statistics, probability, and exploratory data analysis
  • Experience with threat intelligence vendors
  • Ability to work on-site at least twice a week in London

Desired Skills:

  • Financial sector experience

Our commitment to employees:

At CLS, we celebrate inclusion and consider this to be one of our strongest assets. We are committed to fostering an environment in which everyone feels comfortable to be who they are, and inclusion is valued. All employees have access to our inclusive benefits, including:

  • Holiday - UK/Asia: 25 holiday days and 3 ‘life days’ (in addition to bank holidays). US: 23 holiday days.
  • 2 paid volunteer days so that you can actively support causes within your community that are important to you.
  • Generous parental leave policies to ensure you can enjoy valuable time with your family.
  • Parental transition coaching programmes and support services.
  • Wellbeing and mental health support resources to ensure you are looking after yourself, and able to support others.
  • Employee Networks (including our Women’s Forum, Black Employee Network and Pride Network) in support of our organisational commitment to embrace and always be learning more about inclusivity.
  • Hybrid working to promote a healthy work/life balance, enabling employees to work collaboratively in the office when needed and work from home when they don’t.
  • Active support of flexible working for all employees where possible.
  • Monthly ‘Heads Down Days’ with no meetings across the whole company.
  • Generous non-contributory pension provision for UK/Asia employees, and 401K match from CLS for US employees.
  • Private medical insurance and dental coverage.
  • Social events that give you opportunities to meet new people and broaden your network across the organisation.
  • Annual flu vaccinations.
  • Discounts and savings and cashback across a wide range of categories including health and retail for UK employees.
  • Discounted Gym membership – Complete Body Gym Discount/Sweat equity program for US employees.
  • All employees have access to Discover – our comprehensive learning platform with 1000+ courses from LinkedIn Learning.
  • Access to frequent development sessions on a number of topics to help you be successful and develop your career at CLS.

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Job Details

Category
Software
Employment Type
Full Time
Location
London, England, United Kingdom
Posted
Apr 13, 2026, 05:10 AM
Listed
Apr 13, 2026, 05:10 AM

About CLS Group

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Vice President, Cybersecurity Data Scientist
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