Senior Applications Architect

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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.
A trusted partner in operating complex and mission critical environments, Atos supports organizations across highly regulated and sovereign contexts.

Atos Group is a global leader in digital transformation with c. 54,000 employees and annual revenue of c. €7.2 billion, operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.

Where Purpose Meets Career

• Shape the future of digital banking and financial services through enterprise scale transformation programmes.


• Influence strategic technology decisions and architecture direction at executive level.


• Join a global technology leader offering long term career growth, internal mobility, and opportunities to work across complex, high profile engagements.

About the Role

We are seeking an experienced Senior Applications Architect to lead the design, governance, and evolution of enterprise applications, digital services, integration platforms, and customer facing technology solutions within a complex Financial Services environment.

This role combines strategic architecture leadership with hands on engagement across application modernisation, cloud transformation, platform engineering, and enterprise integration initiatives. You will work closely with business stakeholders, product teams, delivery organisations, customers, and suppliers to ensure technology investments deliver measurable business value while maintaining security, resilience, and regulatory compliance.

The successful candidate will bring significant experience operating in large, complex organisations and possess the leadership skills required to influence architecture decisions across business and technology functions.

Key Responsibilities

• Define and maintain application architecture roadmaps aligned with business strategy, digital transformation objectives, and target state architecture.


• Lead the design of scalable, secure, resilient, and maintainable application solutions across cloud native, SaaS, bespoke, and legacy technology landscapes.


• Establish application integration, API, event driven, and microservices architecture standards and best practices.


• Provide architecture governance, design assurance, risk management, and technical leadership across major transformation programmes.


• Build trusted relationships with senior stakeholders, customers, delivery teams, and suppliers while mentoring architects and technical specialists.

Skills We Can't Do Without

• Significant experience in Application Architecture, Solution Architecture, Software Engineering, or Enterprise Architecture leadership roles.


• Proven experience delivering enterprise scale applications, digital services, and transformation programmes within Financial Services, Banking, Insurance, Payments, or similarly regulated sectors.


• Strong expertise in API management, integration platforms, event driven architectures, distributed systems, and microservices.


• Experience with cloud native architectures and modern platforms including Microsoft Azure and/or AWS.


• Exceptional stakeholder management, governance, risk management, and architecture assurance capabilities.

Skills We'd Like

• TOGAF certification and experience applying enterprise architecture frameworks.


• Knowledge of DevSecOps, CI/CD, application security, observability, and modern engineering practices.

Additional Requirements

Candidates must be eligible to obtain and maintain SC clearance.
Location: UK-based. Remote working is available, with national mobility required.

• 25 days paid leave plus National Holidays


• Pension Scheme with contributions matched up to 10%


• Private Medical Cover


• Income Protection


• Life Assurance

We are a care leaver friendly employer.

As a Disability Confident employer, we welcome applications from all candidates, particularly differently abled applicants. We are committed to making reasonable adjustments throughout our recruitment and assessment process and aim to ensure that applicants who meet the minimum criteria are offered the opportunity to interview.

Here at Atos, diversity and inclusion are embedded in our DNA.

Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria.