Senior Security Engineer

Role Profile

We are seeking a motivated Senior Security Engineer to join our dedicated Security Engineering team. In this role, you will play a vital part in safeguarding our organisation by leading on Endpoint Detection and Response (EDR) during mergers, acquisitions, and divestments, ensuring that new systems are securely and seamlessly onboarded.

You will be part of a close-knit team of six engineers who collaborate to protect the organisation from evolving cyber threats. The position is technically hands-on, but equally focused on teamwork, knowledge-sharing, and driving innovation in a supportive environment.

We are proud to foster an inclusive and flexible workplace where people from all backgrounds are encouraged to thrive. We welcome candidates who bring not only technical expertise but also curiosity, new perspectives, and a collaborative spirit.

Key Responsibilities

• Lead and deliver elements of security engineering projects, ensuring successful outcomes and alignment with organisational priorities.
• Represent the Malware Protection Security team, supporting other engineering teams to embed secure design principles into their work.
• Help teams design and deliver secure solutions, using your security expertise while embracing innovative and emerging technologies.
• Lead collaborative sessions to coordinate deployment and management of EDR tools across both cloud and on-premises environments.
• Work closely with colleagues across Technology Security, engineering, and product teams to establish productive, trusted partnerships.
• Contribute to continuous improvement by refining processes, enhancing automation, and strengthening policy frameworks.
• Provide structured support in troubleshooting, root cause analysis, and problem resolution, while ensuring that lessons learned are shared with the wider team.
• Ensure security controls are evidenced to demonstrate design and operational effectiveness.
• Produce clear, accessible documentation to support consistency and knowledge transfer.
• Communicate progress, challenges, and solutions to stakeholders in a transparent and engaging way.

What You’ll Bring

• Previous Endpoint Detection and Response tools (EDR) experience is essential.
• Strong written and verbal communication skills, with the ability to simplify complex concepts for different audiences.
• A proven understanding of information security principles and operating system platforms (Windows Server and/or Linux).
• A growth mindset and willingness to learn continuously as technologies and threats evolve.
• Good understanding of adversary tactics, techniques, and procedures.
• Broad technology and security knowledge, with the ability to see the bigger picture beyond individual tasks.
• Experience in structured troubleshooting, applying methodical approaches to resolve complex issues.
• Interest in modern engineering practices, including automation, Infrastructure as Code, and scripting to enhance efficiency.
• A collaborative, solutions-focused style that builds strong cross-functional relationships.

Why Join Us?

We recognise that to attract the best talent, we need to be flexible, and we are open to discussing work arrangements with you. We take hybrid approach to workplace; this role is hybrid/ digital first. As a global business, we rely on diversity of culture and thought to deliver on our goals. People are at the heart of what we do and drive the success of our business. Our colleagues thrive personally and professionally through our shared values of Integrity, Partnership, Innovation and Excellence are at the core of our culture. We embrace diversity and actively seek to attract people with unique backgrounds and perspectives. We are always looking at ways to become more agile, so we meet the needs of our teams and customers. We believe that an inclusive collaborative workplace is pivotal to our success and supports the potential and growth of all colleagues at LSEG

Proud to share LSEG in the India is Great Place to Work certified (Jun ’25 – Jun ’26).

Learn more about life and purpose of our company directly from India colleagues’ video: Bengaluru, India | Where We Work | LSEG

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.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) 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.

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.