13 principal architect jobs found in London

ABOUT US: LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity. LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ...

Principal Architect: Amazon Web Services (AWS) Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Shape and lead transformative AWS initiatives across financial services. About Capco Capco is a global leader in technology and business consulting, dedicated to driving digital innovation and transformation in financial services. We’ve partnered with over 100 clients worldwide - from pioneering fintechs to established global institutions - helping them adapt, compete, and scale in a rapidly evolving industry. With more than 30 offices globally, we combine deep expertise in banking, payments, capital markets, insurance, wealth and asset management, and energy with an agile, inclusive, and entrepreneurial culture. Role Overview You will take a leading role in shaping and delivering transformative Amazon Web Services (AWS) programmes for our clients. You will bring your expertise to bear by supporting clients in designing new...

Principal Architect: Google Cloud (GCP) Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Shape and lead transformative Google Cloud initiatives across financial services. About Capco Capco is a global leader in technology and business consulting, dedicated to driving digital innovation and transformation in financial services. We’ve partnered with over 100 clients worldwide - from pioneering fintechs to established global institutions - helping them adapt, compete, and scale in a rapidly evolving industry. With more than 30 offices globally, we combine deep expertise in banking, payments, capital markets, insurance, wealth and asset management, and energy with an agile, inclusive, and entrepreneurial culture. Role Overview Through your deep Google Cloud (GCP) expertise, you will act as a technical authority and trusted strategic advisor on some of our clients’ most complex and transformational initiatives. On the one...

Principal Architect: Microsoft Azure Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Shape and lead transformative Microsoft Azure initiatives across financial services. About Capco Capco is a global leader in technology and business consulting, dedicated to driving digital innovation and transformation in financial services. We’ve partnered with over 100 clients worldwide - from pioneering fintechs to established global institutions - helping them adapt, compete, and scale in a rapidly evolving industry. With more than 30 offices globally, we combine deep expertise in banking, payments, capital markets, insurance, wealth and asset management, and energy with an agile, inclusive, and entrepreneurial culture. Role Overview As an expert in Microsoft Azure architecture, you will take a leading role in shaping enterprise-scale, transformative programmes for our clients. You will operate at the intersection of business...

Security Architecture – Secure Design Team Role: Manager – Principal Security Architect: Secure Design (Individual Contributor) Grade: GG14 The Security Architecture Design team is responsible for developing Security Architecture patterns, developing security controls needed for new technology, promoting the use of the architectural patterns into development projects, leading the Security Architecture Design Forum, Evaluating architectural security risks in existing systems, consulting with system development teams and architects on building security into their design. This key task of this role is accelerating the delivery of secure design artefacts and leading secure design interventions - by adding capacity and capability to the team. Reports to: Senior Manager – Secure Design Key Relationships Business Aligned Principal Security Architects CyberSecurity Engineering CyberSecurity Testing and Vulnerability Management Cloud Security Identity Management...

Principal Payments Architect Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Lead innovative payments transformation across financial services. About Capco Capco is a global leader in technology and business consulting, dedicated to driving digital innovation and transformation in financial services. We’ve partnered with over 100 clients worldwide - from pioneering fintechs to established global institutions - helping them adapt, compete, and scale in a rapidly evolving industry. With more than 30 offices globally, we combine deep expertise in banking, payments, capital markets, insurance, wealth and asset management, and energy with an agile, inclusive, and entrepreneurial culture. Role Overview You will play a central role in shaping and delivering some of our clients’ most critical payments transformation programmes, applying your expertise in enterprise and solution architecture alongside your deep knowledge of...

Principal Frontend Developer (React) Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Shape seamless digital experiences that define the future of financial services The Role As a Principal Frontend Developer at Capco, you’ll lead the development of scalable and secure web applications for global financial clients using modern JavaScript frameworks, primarily React. You’ll architect responsive, accessible, and elegant user interfaces and work closely with cross-functional teams to deliver transformative digital experiences. As a senior technical leader, you’ll mentor others, influence frontend strategy, and drive best practices. What You’ll Do Architect and implement complex frontend systems using React and modern frameworks Apply UX/UI best practices to deliver pixel-perfect, accessible, and responsive applications Establish and champion frontend engineering standards across delivery teams Coach...

Role Purpose As Group Director, Head of Security Architecture, you’ll be a core member of the LSEG Cyber Security team. You’ll lead and set the direction for the Cyber Security Architecture team which delivers across a number of areas: Principal Security architecture – a team of engineers who ensure security is build in to all projects across the group. Each architect is aligned to our business units and builds a deep relationship with the teams in that unit. Security Architecture Design – a central function that delivers design patterns to ensure a consistent implementation of our controls across the group. This team researches new technologies, and provides guidance on how to secure them. They also run a project to provide a risk posture review across the application portfolio against our standards. This team also runs design forums, assists in policy and standard creation, and provides consulting on hard security problems as needed. Security Architecture review – a...

Principal Data Engineer - GCP Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Shape the future of financial services through cloud-first data innovation The Role We’re looking for a Principal GCP Data Engineer to join our growing Technology & Engineering team in London. You’ll work with Tier 1 financial institutions on cutting-edge transformation programmes, using your deep expertise in Google Cloud Platform to build robust, scalable data solutions. This role is ideal for engineers who thrive on innovation, take ownership of challenges, and enjoy working in collaborative, agile teams. What You’ll Do Design and build resilient, scalable data pipelines using GCP services such as BigQuery, Dataflow, and Dataproc. Collaborate closely with clients to define business requirements and architect fit-for-purpose data solutions. Apply engineering best practices across the SDLC, including CI/CD, testing, and version...

Principal Azure Data Engineer (Databricks) Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Lead the architecture of data platforms driving the future of financial services The Role As a Principal Azure Data Engineer (Databricks) at Capco, you'll architect and lead the delivery of enterprise-grade data solutions using the Databricks platform within the Azure ecosystem. You'll drive the design and implementation of streaming and batch data pipelines, helping our clients to modernise their data capabilities. Working with cross-functional teams, you’ll guide clients on best practices and technical strategy, ensuring quality and security standards are maintained across deployments. What You’ll Do Lead the end-to-end delivery of Databricks-based solutions across Azure environments Architect secure and scalable pipelines using DeltaLake, Spark Structured Streaming, and Unity Catalog Develop and enforce...

Principal Backend Engineer - Java Location: London (Hybrid) | Type: Permanent The Role Capco is growing our Engineering team – and we’re looking for experienced Principal Backend Engineers with strong Java skills and a passion for delivering innovative solutions in financial services. If you enjoy solving complex problems, working with cloud-native technologies, and collaborating in agile teams, we’d love to hear from you. As a Principal Backend Engineer at Capco, you’ll contribute to high-impact, client-facing projects that shape the future of financial services. You’ll work alongside talented engineers, have access to industry-leading training, and get the opportunity to grow your skills across multiple platforms. You will also get the chance to work across different domains within FS & Energy. What You’ll Do Build and deliver scalable backend services using Java (11, 17+) Design and implement APIs and microservices for enterprise systems Work across...

Lead AI Engineer (Principal Consultant) Location: London (Hybrid) | Practice Area : Technology & Engineering | Type: Permanent Empower the next frontier of AI with Capco. Shape, build, and deliver future-ready generative systems. The Role We’re looking for a Lead AI Engineer (Principal Consultant) to join our Technology Delivery Team. You’ll combine your expertise in AI/ML engineering and software development to build and deploy cutting-edge generative AI and agentic systems across the financial services sector. As a hands-on leader, you’ll architect AI solutions, embed them within enterprise environments, and drive impactful outcomes through advanced engineering, scalable pipelines, and deep cross-functional collaboration. What You’ll Do Architect and develop autonomous AI systems integrating multi-modal LLMs (text, image, audio, video) Design agentic workflows enabling AI agents to interact with data sources and APIs using prompt engineering and RAG...

Principal Data Engineer - AWS  Location: London (Hybrid) | Practice Area : Technology & Engineering | Type: Permanent Engineer future-ready data platforms that power financial transformation. The Role We’re looking for a Principal Data Engineer with AWS to join our growing team of engineering experts driving next-gen transformation for Tier 1 financial services clients. You’ll play a pivotal role in designing, building, and deploying cloud-based data pipelines. Working across greenfield projects and enterprise-scale platforms, your work will directly impact the way data is ingested, transformed, and served at scale across the financial services industry. What You’ll Do Design and build end-to-end data pipelines leveraging AWS-native tools and modern data architectures. Collaborate with clients to gather requirements, define solutions, and deliver production-grade systems. Apply AWS Well-Architected Principles to ensure scalability, security, and...