ABOUT US
LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated open‑access partners with a commitment to excellence in delivering the services our customers expect. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies to fund innovation, manage risk and create jobs. For more than 300 years we have supported financial stability and growth worldwide.
OUR PEOPLE
People are at the heart of what we do and drive the success of our business. Our values of Integrity, Partnership, Excellence and Change shape how we think, act and help our people fulfil their potential. We embrace diversity, encourage teamwork and create an inclusive culture where everyone can grow, develop and progress.
Role profile
Enable the Group to operate and expand an Application Security Programme and reduce application‑level vulnerabilities.
ROLE SUMMARY
The role focuses on driving the implementation and growth of the Application Security Programme to reduce vulnerabilities across applications. It involves partnering with product teams to integrate security practices into development workflows, analysing scan results and guiding effective remediation strategies. Success requires strong collaboration, technical expertise in security tools and the ability to communicate technical information clearly to diverse stakeholders.
WHAT YOU’LL BE DOING
- Collaborating across teams to tackle vulnerabilities head‑on and design effective, practical mitigation strategies.
- Leading security excellence by engaging with stakeholders to strengthen and continuously improve the organization’s application security posture.
- Turning insights into action by analysing security scan results, validating findings, eliminating false positives, and guiding informed remediation decisions.
- Driving alignment and innovation by sharing knowledge, setting clear objectives, and delivering impactful application security outcomes.
- Empowering product teams by seamlessly integrating Application Security solutions into their development workflows.
WHAT YOU’LL BRING
Technical Foundation
- Strong understanding of common and emerging vulnerabilities across web applications, APIs and other platforms, and knowledge of key security standards such as OWASP Top 10, SANS Top 25, NIST and ASVS.
- Hands‑on experience with security tools like SAST, SCA and container scanning; familiarity with programming languages such as Java, C# and Python.
- Knowledge of modern development practices, including Agile, DevOps and SecDevOps, enabling effective work in fast‑paced environments.
Vulnerability Management
- Proven experience managing remediation activities within application security and ability to explain the rationale behind security fixes.
- Strong analytical skills to interpret and correlate data from sources such as SAST, SCA and penetration tests, identifying trends and prioritizing remediation efforts.
- Capability to link issues across multiple layers—code, infrastructure, identity, cloud environments and third‑party services—and propose process improvements to reduce systemic vulnerabilities.
Collaboration & Communication
Ability to work effectively with technical and business teams, manage expectations and deliver clear, actionable insights to stakeholders at all levels. Adept at handling complex situations with integrity and clarity.
Desirable – Automation Experience
Hands‑on experience implementing automated security testing at scale (SAST, SCA, containers) and troubleshooting integration issues between security tools and development environments.
WHAT YOU’LL GET IN RETURN
- Work with some of the most talented minds in the industry, collaborating on impactful security initiatives that make a real difference globally.
- Be part of an industry that brings immense value to customers worldwide and is highly respected, giving you the chance to contribute to meaningful outcomes.
- Create and innovate as an engineer, building new solutions and shaping the future of application security.
- Join a fun and innovative company that encourages creativity and fresh ideas.
- Expand your skill set by learning new tools, techniques and approaches in a dynamic environment.
- Enjoy a positive, balanced work culture that prioritizes well‑being and fosters a happy, collaborative atmosphere.
Career Stage
Senior Associate
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.
Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. We 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 we do not discriminate on the basis of 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. We can reasonably accommodate applicants’ and employees’ religious practices and beliefs as well as mental health or physical disability needs.
We are committed to sustainability across our global business and partner with customers to help them meet their sustainability objectives. 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.
Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.
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