Senior Frontend Engineer

Role Summary:

LSEG is seeking a dynamic and hands-on Frontend Engineer to join a high-performing engineering team in delivering strategic applications for our flagship LSEG Workspace platform. Beyond the people management responsibility, this role is responsible for designing, building, and optimising high‑performance, customer‑facing applications for the LSEG Workspace platform. You will work closely with product managers, UX designers and product owners to deliver exceptional user experiences while contributing to architectural decisions and advancing engineering excellence across the organisation.

What You’ll Be Doing:

• Hands-on Engineering: Design and implement high‑quality, scalable frontend applications using JavaScript, TypeScript, and modern frameworks.
• Deliver features end‑to‑end, including requirements analysis, technical design, implementation, testing, and deployment.
• Contribute to frontend modernisation initiatives.
• Maintain high coding standards, testing practices, and development automation.
• Collaboration: Work with Product and UX teams to translate business requirements into technical solutions.
• Collaborate with backend, QA, and DevOps teams to ensure seamless integration and reliable delivery.
• Operational Excellence: Contribute to improving reliability, performance, observability, and scalability across applications.
• Diagnose and resolve complex technical issues.
• Support enhancements in tools, processes, and engineering best practices.
• Promote knowledge sharing and engineering excellence across the Workspace organisation.

What You’ll Bring:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Excellent proficiency in JavaScript, TypeScript, and modern frontend frameworks (ideally around 7 years of previous experience).
• Experience with full‑stack development (any modern backend framework or language).
• Proven experience delivering complex software products in Agile environments.
• Strong understanding of web performance, UI architecture, and accessibility.
• Excellent problem‑solving and debugging abilities.
• Strong communication skills, with the ability to work collaboratively with stakeholders.
• Experience working with distributed and cross‑functional engineering teams.

Benefits:

We are looking for intellectually curious people, passionate about the bigger picture of how technology industry is evolving, ready to ask difficult questions and deal with complicated scenarios! If you are creative and a problem solver, this is the place to be as will be supporting you to fast-forward your career!

We maximise each employee’s potential through personal development through a wide range of learning tools both formal and informal. We believe in remunerating our people with competitive salaries and a range of attractive benefits such as:

• 25 days’ holiday per year
• 1 additional day off for your Birthday
• Annual wellness allowance
• Share Purchase Plan
• Medical Health Insurance
• Medical Subscription (preventive medical services)
• Life insurance
• Pillar 3 Private Pension
• Meal Vouchers
• Flexible Benefits
• Bookster
• Volunteering Events
• All LSEG colleagues with at least one year’s continuous service, who become parents, are now entitled to at least 26 weeks’ paid leave, and the option to return to work on a phased basis, in relation with specific company’s policy and guidelines

Career Stage:

Senior Associate

London 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.

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.