Full Stack​/UI Developer

LSEG City Of London, England, United Kingdom

Join our team and help us build the future of financial services on blockchain technology. This is a unique opportunity to work on cutting‑edge products and services that will transform the way we interact with financial markets. DMI (Digital Markets Infrastructure) is an ambitious project: large‑scale, complex and uses a range of blockchain architecture patterns, with numerous stakeholders (internal and external) and use cases.

The work is focused on the tokenisation of financial instruments, i.e. as digital assets. We seek candidates with an interest in the financial markets with experience of working on large projects. This is a chance to work on an innovative, intellectually challenging project backed by the influential reach of London Stock Exchange Group. The ideal candidate will play a crucial role in developing, enhancing, and ensuring the robustness of our front‑end solutions, especially those that are critical for LSEG Capital Markets’ strategic goals.

• Design, develop, and optimise front‑end software solutions using modern technologies.
• Collaborate with product teams and architects to deliver scalable and reliable software.
• Play a pivotal role in the product development life cycle, ensuring that front‑end solutions are robust and scalable.
• Engage with cross‑functional teams, central technology functions, and wider stakeholders to ensure software design goals are met.
• Ensure alignment of front‑end solutions with LSEG’s technology and business goals.
• Maintain up‑to‑date expert knowledge of web technologies and trends.

• Proven experience in front‑end software development as a principal senior engineer.
• Strong professional experience in Type Script.
• Experience with UI testing frameworks such as Playwright or Cypress (excluding Web Driver).
• Experience with microservices and event‑based architecture.
• Hands‑on experience with Cloud (Azure, AWS or similar), particularly with deploying, managing, and scaling back‑end application.
• Next.js (v14+).
• Gitlab pipelines.
• Proficient in TDD/BDD methodologies.
• Deep understanding of SQL & No
  
  SQL databases.
• Experience pairing with QA Automation (SDET) engineers to help reduce technical debt and contribute to building a maintainable E2E automation suite.
• Broad knowledge & practical expertise in front‑end technologies including JavaScript, React, and Node.js. Understanding of TDD/BDD, microservices, and event‑based architecture.

• Excellent communicator, able to interact with stakeholders at all levels.
• Vision and creativity to foresee challenges and provide innovative solutions.
• Interest in new technology and ability to work with early‑stage ideas.

Commercial awareness and knowledge of financial services (desirable, not required).

• Mid‑Senior level

• Full‑time

• Engineering and Information Technology

• IT Services and IT Consulting and Financial Services

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.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.