Principal Web Architect
Principal Web Architect

Principal Web Architect

Full-Time 48000 - 72000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead the evolution of web platforms and mentor senior engineers in a high-impact role.
  • Company: Join LSEG, a leading global financial markets infrastructure provider with a focus on innovation.
  • Benefits: Enjoy healthcare, retirement planning, paid volunteering days, and wellbeing initiatives.
  • Why this job: Shape the future of web technology while making a significant impact in financial markets.
  • Qualifications: Expertise in web application architecture, modern JavaScript/TypeScript, and mentoring skills.
  • Other info: Collaborative culture that values new ideas and sustainability.

The predicted salary is between 48000 - 72000 £ per year.

Reporting to the Director of Architecture within the Risk Intelligence team. Risk Intelligence is responsible for developing critical services that support anti-money laundering efforts in the financial markets. We’re looking for an ambitious Principal Web Architect to lead the evolution of our web platforms. This is a high-impact role where you’ll shape the technical direction of our web stack, mentor senior engineers, and ensure our tooling and frameworks are world-class. You’ll be instrumental in driving web innovation, ensuring code quality, and staying ahead of the curve in modern web development.

Main Responsibilities

  • Architectural Leadership: Define and evolve the architecture of our web platforms to ensure scalability, performance, and maintainability.
  • Code Quality & Reviews: Conduct code reviews, establish best practices, and ensure adherence to architectural and coding standards.
  • Mentorship & Coaching: Guide and mentor senior engineers, fostering a culture of technical excellence and continuous learning.
  • Tooling & Developer Experience: Own and enhance the tooling ecosystem (CI/CD, linters, bundlers, testing frameworks) to streamline development workflows.
  • Framework Development: Contribute to and maintain shared frameworks and libraries that power our web applications.
  • Innovation & Research: Stay ahead of emerging trends in web technologies (e.g., edge computing, WebAssembly, server components) and assess their relevance to our stack.
  • Cross-functional Collaboration: Work closely with product, design, and backend teams to deliver cohesive and performant user experiences.

Skills/Experience Required

  • Proven experience in architecting and developing web applications.
  • Deep expertise in modern JavaScript/TypeScript, React (or similar frameworks), and web performance optimization.
  • Deep understanding of software design patterns, SOLID, unit testing, locking, dependency injection and other essential engineering methods.
  • Strong understanding of frontend infrastructure, build systems, and deployment pipelines.
  • Experience coaching senior engineers and leading technical initiatives.
  • Passion for developer experience and tooling.
  • Ability to balance hands-on coding with strategic architectural thinking.
  • Ability to lead by example, influencing without direct authority, and communicate complex ideas clearly to technical and non-technical audiences.

Bonus Skills/Experience

  • Experience with micro frontends, design systems, or federated architectures.
  • Familiarity with backend-for-frontend patterns and GraphQL.
  • Contributions to open-source projects or technical blogs.

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 values are Integrity, Partnership, Excellence and Change, which underpin our purpose and guide our decision making and everyday actions.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of race, religion, color, 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.

Principal Web Architect employer: LSEG

LSEG is an exceptional employer that fosters a collaborative and innovative work culture, making it an ideal place for a Principal Web Architect to thrive. With a strong commitment to employee growth, we offer tailored benefits including healthcare, retirement planning, and paid volunteering days, all while empowering our team to drive impactful change in the financial markets. Join us in a role where your expertise will shape the future of web technology and contribute to sustainable economic growth.
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Contact Detail:

LSEG Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Web Architect

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage in online communities. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your best work, especially projects that highlight your architectural prowess and coding standards. This is your chance to shine and demonstrate what you can bring to the table.

✨Tip Number 3

Prepare for interviews by brushing up on your technical knowledge and soft skills. Practice explaining complex concepts clearly, as you'll need to communicate effectively with both technical and non-technical folks.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at LSEG.

We think you need these skills to ace Principal Web Architect

Architectural Leadership
Web Application Development
JavaScript
TypeScript
React
Web Performance Optimization
Software Design Patterns
SOLID Principles
Unit Testing
Frontend Infrastructure
Build Systems
Deployment Pipelines
Mentorship
Developer Experience
Micro Frontends

Some tips for your application 🫡

Show Your Passion for Web Innovation: When you write your application, let us see your enthusiasm for web technologies! Share examples of how you've driven innovation in your previous roles and how you stay updated with the latest trends. We love candidates who are genuinely excited about shaping the future of web development.

Highlight Your Mentorship Experience: As a Principal Web Architect, mentoring is key! Make sure to include any experiences where you've guided senior engineers or fostered a culture of learning. We want to know how you've helped others grow and how you can bring that same energy to our team.

Be Clear About Your Technical Expertise: We’re looking for someone with deep expertise in modern JavaScript/TypeScript and frameworks like React. In your application, be specific about your skills and experiences. Use concrete examples to demonstrate your understanding of architectural principles and coding standards.

Apply Through Our Website: We encourage you to apply directly through our website! It’s the best way for us to receive your application and ensures you don’t miss out on any important updates. Plus, it shows us you’re keen on joining our team at LSEG!

How to prepare for a job interview at LSEG

✨Know Your Tech Stack Inside Out

Make sure you’re well-versed in modern JavaScript/TypeScript and frameworks like React. Be prepared to discuss your experience with web performance optimisation and architectural patterns, as these will be key topics during the interview.

✨Showcase Your Mentorship Skills

Since this role involves mentoring senior engineers, come ready with examples of how you've guided others in the past. Highlight any initiatives you've led that fostered technical excellence and continuous learning within your team.

✨Demonstrate Your Innovation Mindset

Stay ahead of emerging trends in web technologies. Be prepared to discuss how you’ve implemented new tools or frameworks in previous roles and how they improved developer experience or project outcomes.

✨Prepare for Cross-Functional Collaboration

This role requires working closely with product, design, and backend teams. Think of examples where you successfully collaborated across disciplines to deliver cohesive user experiences, and be ready to share those stories.

Principal Web Architect
LSEG

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