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LSEG (London Stock Exchange Group)

LSEG (London Stock Exchange Group)

www.lseg.com

16 Jobs

22,482 Employees

About the Company

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.

Listed Jobs

Company background Company brand
Company Name
LSEG (London Stock Exchange Group)
Job Title
Cyber Security - Secure Design Lead
Job Description
**Job title:** Cyber Security – Secure Design Lead **Role Summary:** Senior manager who leads a Security Architecture – Design team, chairs the Design Forum, and develops security architecture patterns, controls, and frameworks to embed security into technology acquisition and development across the organization. **Expectations:** Deliver end‑to‑end secure design for new and existing systems, build and maintain the Secure Design team, drive adoption of security controls, and showcase measurable risk reduction and compliance to regulators and auditors. **Key Responsibilities:** - Lead and manage a team of Security Architects, ensuring resource allocation and professional development. - Chair the Security Architecture Design Forum and represent the team in cross‑functional governance bodies. - Design, document, and publish security architecture patterns and standards compliant with group, regulatory, and industry requirements. - Own the security control framework, assess new technology for security posture, and integrate controls into acquisition processes. - Evaluate architectural risks in existing systems, propose tactical/strategic remediation plans, and assess cost‑benefit trade‑offs. - Consult and champion secure design practices with business and technical delivery teams. - Engage with BISO, solution architects, and cloud, application security, and engineering teams on security plans. - Manage third‑party security deliverables, track budgets, and report on financials. - Establish and report on metrics to measure the effectiveness and efficiency of the Secure Design function. **Required Skills:** - 10+ years in technical engineering or information security, with senior experience in security architecture. - Proficiency in enterprise architecture frameworks, threat modelling, and secure design patterns. - Experience designing and applying security controls in distributed systems (on‑prem and cloud). - In‑depth understanding of security principles, authentication, access control, encryption, network security, application security, and emerging vulnerabilities. - Familiarity with OWASP Top 10, SANS Top 25, NIST, CIS Controls, etc. - Strong analytical, problem‑solving, and critical‑thinking abilities. - Ability to work under pressure, self‑start, and influence stakeholders across business and technical domains. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Security, or related field (Master’s preferred). - Professional security certifications such as CISSP, CISM, CCSP, or equivalent are highly desirable.
London, United kingdom
Hybrid
Senior
23-11-2025
Company background Company brand
Company Name
LSEG (London Stock Exchange Group)
Job Title
Credit Risk Analyst
Job Description
Job title: Credit Risk Analyst – Internship (6‑Month) Role Summary Assist a senior analyst in conducting credit risk assessments for banking and broker sectors across Europe, North America, and Asia. Support credit committee processes, portfolio monitoring, and onboarding reviews under mentorship. Expactations - Deliver clear, accurate credit risk analyses and documentation. - Attend credit committee meetings and present informed opinions. - Meet all deadlines, maintain confidentiality, and show proactive initiative. Key Responsibilities - Conduct annual reviews of counterparties in the portfolio. - Analyze new onboarding requests for creditworthiness and risk classification. - Perform active monitoring of the credit portfolio, flagging and escalating deviations. - Participate in credit committee meetings; synthesize data and articulate risk positions. - Provide ongoing support to senior analyst on additional risk projects as needed. Required Skills - Strong financial analysis and valuation abilities. - Understanding of banking sector operations and credit risk frameworks. - Proficiency with Bloomberg terminal and Microsoft Office Suite. - Excellent written and verbal communication in English. - Team-oriented, organized, detail‑oriented, and analytical mindset. - Motivated, proactive, with strong interpersonal and soft‑skill capabilities. Required Education & Certifications - Current enrollment or recent graduate in Finance, Economics, Accounting, or a related field. - Relevant coursework in credit risk, financial markets, or corporate finance.
Paris, France
Hybrid
01-12-2025
Company background Company brand
Company Name
LSEG (London Stock Exchange Group)
Job Title
Data Scientist
Job Description
**Job title** Data Scientist – LLM Ops **Role Summary** Lead the design, deployment, and monitoring of production‑grade large language model (LLM) solutions within a globally distributed data science team. Work closely with AI engineers, software delivery teams, and cross‑functional stakeholders to translate business requirements into robust data science and AI‑engineered products, ensuring model health, compliance, and continuous improvement. **Expectations** - Initiate and cultivate LSEG’s first end‑to‑end LLM Ops capability. - Bridge data science, AI engineering, and project delivery to deliver AI‑driven solutions. - Manage LLM lifecycle: fine‑tuning, evaluation, deployment, and monitoring. - Operate in a high‑velocity, collaborative environment across multiple time zones. - Maintain rigorous data governance, privacy, and ethical AI standards. **Key Responsibilities** - Collaborate with AI engineering and software delivery teams to architect, build, and roll out production‑ready LLM systems. - Analyze production data streams, detect anomalies and performance regressions, and prescribe actionable improvements. - Define, track, and report on key model performance and operational metrics. - Support end‑to‑end LLM lifecycle: data preparation, fine‑tuning, evaluation, and rolling deployments. - Translate business needs into data‑driven model solutions and communicate insights to stakeholders. - Build scalable, maintainable code for data pipelines, model training, and evaluation. - Champion continuous improvement of data science workflows, tooling, and best practices. **Required Skills** - Strong programming in Python (pandas, NumPy, scikit‑learn). - Experience with version control (Git), CI/CD pipelines, and containerization (Docker). - Proficiency in SQL and data manipulation. - Hands‑on experience designing, fine‑tuning, and evaluating large language models. - Knowledge of data governance, privacy regulations, and ethical AI principles. - Ability to work under ambiguity, iterate rapidly, and validate non‑deterministic systems. - Excellent communication, cross‑functional collaboration, and stakeholder engagement. **Required Education & Certifications** - Bachelor’s (or higher) in Computer Science, Data Science, Statistics, or a related technical field. - Certifications in Machine Learning, Data Engineering, or AI ethics are a plus.
London, United kingdom
Hybrid
02-12-2025
Company background Company brand
Company Name
LSEG (London Stock Exchange Group)
Job Title
Principal Data Scientist
Job Description
Job title: Principal Data Scientist Role Summary Lead end‑to‑end design, development, and deployment of production‑grade AI solutions for financial markets, focusing on NLP and large language models. Own delivery timelines, ensure scalability, reliability, and alignment with business needs, and collaborate across engineering and product teams. Expectations - Deliver production‑ready models that are used by real customers. - Maintain high coding and model quality standards. - Communicate technical decisions to diverse audiences. - Continuously improve model performance post‑deployment. Key Responsibilities - Design, build, test, and deploy scalable NLP/LLM solutions. - Optimize models for performance and reliability in production. - Tuning, evaluation, and iterative improvement using production feedback. - Assess third‑party AI solutions for suitability, scalability, and integration. - Write and maintain Python code following best engineering practices. - Collaborate with engineering, product, and business stakeholders to define requirements and roadmaps. - Set coding and evaluation standards for the production pipeline. Required Skills - Extensive hands‑on experience shipping NLP and LLM models to production. - Strong Python programming (OOP, PyTorch, TensorFlow, Scikit‑Learn). - Knowledge of probability and statistical modeling. - Experience with Azure and/or AWS for scalable AI deployment. - Proven ability to enforce coding and model evaluation standards. - Excellent communication skills for technical and non‑technical audiences. Required Education & Certifications - Bachelor’s degree in Engineering, Computer Science, Data Science, Statistics, Mathematics, Physics, or equivalent practical experience.
London, United kingdom
Hybrid
Senior
06-12-2025