Senior Lead Full Stack Developer

About the role

The position is part of a Digital Operations business unit, the Enterprise Services automation team. As a Lead Full Stack Developer, the individual will be responsible for leading the technical design, development, and delivery of strategic integrations and applications that support business growth and operational excellence.

The successful candidate will act as the technical lead for complex initiatives, providing architectural guidance, establishing engineering best practices, and ensuring high-quality delivery across the software development lifecycle. This is a hands-on technical leadership role with no direct people management responsibilities.

Role Responsibilities

• Lead the design and development of scalable, secure, and maintainable full-stack applications and integrations

• Provide technical leadership and architectural direction across multiple projects and development teams

• Own technical solution design and ensure alignment with enterprise architecture, security, and engineering standards

• Collaborate closely with Product Owners, Business Analysts, Architects, and Delivery Managers to define and deliver solutions that meet business objectives

• Drive software engineering best practices including code quality, testing, CI/CD, observability, and automation

• Conduct code reviews and provide technical mentoring and coaching to developers

• Identify and resolve technical risks, performance bottlenecks, and architectural challenges

• Support the definition and implementation of development standards, reusable frameworks, and shared components

• Contribute to technical roadmaps and strategic technology decisions

• Ensure software deliverables meet expected quality, security, performance, and maintainability standards

• Lead troubleshooting and resolution of complex production issues when required

• Stay current with emerging technologies and recommend improvements that enhance business value and developer productivity

Requirements

• Degree in Computer Science, Software Engineering, Electronics / Electrical Engineering, or equivalent experience

• 7+ years of experience in software engineering with significant experience delivering enterprise-grade web applications

• Strong experience developing modern web applications using JavaScript and TypeScript, including React, Angular, Node.js, and shared component libraries

• Deep understanding of multi-tier and distributed application architectures

• Experience designing and implementing scalable REST APIs and microservices

• Strong knowledge of SQL and relational database design principles

• Experience working with cloud platforms and modern DevOps practices

• Strong understanding of software design patterns, architectural principles, and engineering best practices

• Significant experience with Agile delivery methodologies and large-scale enterprise projects

• Experience leading technical delivery and influencing engineering decisions across teams

• Excellent communication and stakeholder management skills

Advantageous Experience

• Experience within Financial Markets, Capital Markets, or Financial Services environments

• Experience with Microsoft Azure services and cloud-native development

• Experience with ServiceNow development and integrations

• Experience implementing CI/CD pipelines and Infrastructure as Code

• Experience with AI-assisted development tools, Copilot technologies, or agent-based solutions

Essential Skills

• Strong technical leadership and decision-making capabilities

• Ability to influence without formal authority

• Excellent problem-solving and analytical skills

• Strong communication skills with both technical and non-technical stakeholders

• Ability to balance strategic thinking with hands-on delivery

• Excellent attention to detail and commitment to engineering quality

• Self-motivated and results-oriented with a strong sense of ownership

• Ability to work effectively under pressure and manage competing priorities

• Strong collaboration and mentoring skills

• Continuous learning mindset and passion for technology

Career Stage:

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.

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