Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements. With more than 52,000 employees serving over 4,500 clients across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation, strengthen cybersecurity, and deliver secure digital workplace environments to support its clients, its employees and society. Atos also provides consulting and advisory services through its Atos Amplify brand. About Atos GroupAtos Group is a global leader in digital transformation with c. 7.2 billion, operating in 54 countries under two brands - Atos for services and Eviden for products and systems. Influence – Play a key role in shaping data strategy and architecture decisions while guiding stakeholders and delivery teams. Bigger Challenges & Scope – Lead large-scale data transformation programmes with broad business impact across complex enterprise environments. Role OverviewThe Lead System Architect (LSA) will own the overall Pega solution architecture, translate complex business and technical requirements into scalable designs, and provide hands-on technical leadership to Pega development teams. The role requires strong stakeholder engagement and the ability to ensure solutions meet architectural, security, performance, integration, and operational requirements. Key ResponsibilitiesOwn the end-to-end architecture and technical design of Pega applications. Lead solution design across case management, workflows, data models, integrations, security, and user experience. Define application architecture, reusable components, enterprise design patterns, and implementation standards. Review solution designs and implementation approaches to ensure compliance with Pega guardrails and engineering best practices. Lead complex technical design decisions and resolve architecture and performance challenges. Design scalable integration patterns using REST APIs, services, connectors, data pages, messaging, and enterprise integration technologies. Define appropriate authentication, authorization, access control, and security architecture. Ensure solutions meet non-functional requirements including performance, scalability, availability, resilience, security, and maintainability. Establish appropriate application monitoring, performance optimisation, and troubleshooting approaches. Define DevOps, CI/CD, branching, deployment, and release management approaches for Pega applications. Support production readiness, deployment planning, and technical assurance activities. Translate business requirements into appropriate Pega architecture and technical solutions. Lead technical workshops and communicate architecture decisions clearly to both technical and non-technical stakeholders. Support estimation, delivery planning, technical risk management, and dependency management. Deep knowledge of Pega case management, application architecture, data modelling, and integration. Strong understanding of Pega application design principles, guardrails, and reusable architecture. Strong knowledge of Pega performance optimisation, monitoring, and troubleshooting. Experience with Pega DevOps, CI/CD pipelines, automated testing, and enterprise deployment approaches. Experience delivering solutions within Agile/Scrum environments. Ability to lead multiple Pega development teams and provide architecture governance across workstreams. Strong stakeholder management, communication, and technical leadership skills. Ability to explain complex architecture decisions to senior business and technology stakeholders. Experience with Pega Constellation architecture and DX API.Pension Scheme - contributions matched up to 10%Private medical coverIncome ProtectionLife Assurance25 days paid leave + National HolidaysFlex benefits programAt Atos, we want everyone to feel confident and supported throughout the recruitment process. As a proud signatory of the Armed Forces Covenant, Employers Domestic Abuse Covenant (EDAC) and Care Leaver Covenant, we welcome applications from individuals from all backgrounds and life experiences. As a Disability Confident Leader, we guarantee an interview to disabled applicants who meet the minimum essential criteria for the role. UK-Recruitment-Support@atos.net. We're here to help ensure you can participate fully and showcase your skills and experience. Here at Atos, diversity and inclusion are embedded in our DNA. Choose Atos.
Lead Architect in London employer: Atos
Atos is an excellent employer for Senior Full-Stack Engineers, offering a dynamic work culture that fosters innovation and collaboration. With a strong emphasis on employee growth, you will have access to continuous learning opportunities and the chance to mentor fellow engineers, all while working in a cutting-edge environment that values your contributions to scalable AI systems.
