About the role

The position is part of a Digital Operations business unit, the Enterprise Services automation team. As a Principal Solution Architect, the individual will be responsible for creating and designing software solutions, integrations and application architectures that support strategic business growth. The candidate will work closely with the development and delivery teams, providing end-to-end architecture ownership, technical governance and design assurance across cloud, microservices and modern full-stack application delivery. This is a senior individual contributor and technical leadership role.

Role Responsibilities

• Define, own and maintain end-to-end solution architecture for Digital Capabilities applications, integrations and shared platforms
• Provide design leadership across full-stack development squads, working closely with the Tech Lead to translate architecture into delivery plans.
• Create architectural blueprints, target-state designs, logical and physical diagrams, interface contracts and transition plans
• Define non-functional requirements and design patterns for scalability, availability, security, resilience, performance, observability and maintainability
• Drive alignment between business strategy, product roadmaps, enterprise architecture standards and engineering implementation
• Support the design and implementation of cloud-native, microservices, API-first and event-driven solutions
• Define and manage technical governance for application architecture, including architecture decisions, design reviews and technology standards
• Conduct architecture reviews and code reviews as required/requested by product and engineering teams
• Identify opportunities for technical innovation, reuse, simplification and the elimination of waste across existing solutions
• Evaluate technologies, vendors, data sources and partners that can help deliver digital capabilities
• Publish architecture standards, patterns, guardrails and documentation for engineering teams to use consistently
• Partner with Product Owners, Business Analysts, Engineers, Security, Infrastructure and Operations teams to deliver high-quality outcomes
• Support incident, problem and change processes by providing architectural insight into complex production issues
• Mentor and guide engineers and tech leads through influence, coaching and technical expertise without direct reporting line ownership

Requirements

• Degree in Computer Science, Software Engineering, Electronics / Electrical Engineering, or equivalent experience
• 10+ years of professional experience in software engineering / information technology, including significant experience in enterprise application delivery
• 5+ years of experience in solution architecture, application architecture or technical design leadership for large-scale platforms
• Proven track record of designing and delivering secure, scalable and maintainable business-critical systems
• Strong knowledge of full-stack application delivery using modern JavaScript / TypeScript technologies such as React, Angular and Node.js
• Deep understanding of multi-tier and distributed system architectures, REST APIs, JSON, XML, SOAP, SQL and application integration patterns
• Strong understanding of cloud architecture and cloud computing capabilities, preferably Azure and/or AWS
• Experience designing microservices, API gateways, containerised or serverless applications and event-driven architectures
• Practical understanding of SDLC, continuous integration and delivery, application security, quality assurance, DevSecOps and Agile based delivery
• Experience defining non-functional requirements for resiliency, scalability, performance, security, operability and observability
• Ability to develop conceptual, logical, physical and as-built architecture models and communicate them clearly
• Experience with architecture governance, technical decision records, design review processes and engineering standards
• Strong verbal and written communication skills with the ability to explain complex technical concepts to engineering teams and senior stakeholders

Advantageous Experience:

• Financial markets, capital markets or other regulated industry experience
• ServiceNow development or integration experience
• Azure Kubernetes Service, Kubernetes, Istio, serverless, API management or container platform experience
• Legacy application modernisation, refactoring or public cloud migration experience
• Observability, monitoring, SRE practices or production operability experience
• AI-assisted development, Copilot technologies or agent-based solution experience
• Experience evaluating third-party data, vendor solutions and external services

Essential Skills

• Articulate, energetic person able to work alone or as part of a team
• Strong technical leadership with the ability to influence without formal authority
• Excellent attention to detail and a strong ability to think laterally to solve business problems
• Ability to balance strategic architecture thinking with practical delivery constraints
• Strong analytical and problem-solving skills across complex technical and business domains
• Creative, results driven, self-motivated and solutions oriented
• Demonstrates a can-do attitude, exhibits self-confidence and communicates with clarity
• Excellent organisational and time management skills with the ability to work under pressure and to tight deadlines
• Good interpersonal, stakeholder management and communication skills

Career Stage:
Manager

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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