Integration Solution Architect

The posting

Purpose of the role:

The Lead Solution Architect is responsible for leading the design and development of innovative solutions to meet the needs of the business. They will work closely with stakeholders to understand their requirements and develop solutions that are cost-effective, secure and scalable. They will be responsible for the overall architecture of the solution, ensuring that it meets the business needs and is in line with industry best practices. They will also be responsible for leading the development team, ensuring that the solution is delivered on time and to the highest quality. The Lead Solution Architect will also be responsible for providing technical guidance and mentoring to the development team.

Job title:

Integration Solution Architect

Job Description:

*CANDIDATES MUST BE ELIGIBLE FOR SC CLEARANCE*

This role is critical to the success of complex, high-volume integration programmes, where external platform constraints (e.g. Oracle) must not only be designed and assured but strategically aligned and operationalised within enterprise-owned integration environments.

The Integration Solution Architect is responsible for defining and shaping the integration architecture strategy, while ensuring the design, delivery, and assurance of robust, scalable integration solutions across complex enterprise landscapes. The role plays a pivotal part in enabling seamless data and process flows between core platforms (e.g. ERP, ServiceNow, Amazon Connect, and integration hubs), ensuring alignment with business objectives, security requirements, and operational outcomes.

Operating at both a strategic and hands-on delivery level, the architect will work closely with business stakeholders, technical teams, and third-party partners to define integration direction, make and assure technical design decisions, and provide active guidance through build, test, deployment readiness, and transition to BAU. The role ensures that integration approaches not only meet immediate programme needs but are sustainable, reusable, implementable, and aligned to long-term enterprise architecture principles, while maintaining compliance with relevant standards and best practices.

What you’ll be doing:

• Strategy & Direction:Define, own, and continuously evolve the enterprise integration strategy and roadmap, ensuring alignment to organisational objectives and long-term transformation goals. Ensure all integrations are routed via the Customer Integration Hub and comply with enterprise architecture and GDS standards Establish and govern integration principles, standards, and patterns (e.g. API-led, event-driven, reusable services) across the enterprise landscape Provide architectural leadership to ensure integration design decisions are scalable, resilient, and aligned to future business needs
• Business Alignment:Work with senior business stakeholders to understand strategic goals, operational priorities, and performance outcomes, translating these into clear integration architecture direction Ensure integration solutions enable end-to-end business processes, improve data flow, and support measurable business value (e.g. efficiency, automation, service improvement) Facilitate and lead solution integration workshops with internal and external stakeholders to confirm requirements, design adherence, and technical feasibility Identify opportunities to rationalise and reuse integration capabilities, reducing complexity and improving time-to-market
• Architecture Governance & Landscape Ownership:Maintain a holistic view of the system landscape, including platforms, data flows, and integration dependencies Assess and optimise the availability, reuse, and lifecycle of APIs and services across systems Define how systems should interact within the integration ecosystem, ensuring clear ownership, accountability, and governance
• Platform & Technology Leadership:Provide strategic direction and oversight for integration platforms, including:

• Oracle Integration Cloud (OIC) MuleSoft Anypoint Platform (desirable)

• Where both platforms are used, define how they work together, ensuring consistent patterns, interoperability, and optimal use of capabilities

• Governance, Assurance & Risk Management

• Establish and enforce integration governance frameworks, ensuring consistency and compliance with enterprise standards
• Provide design authority and assurance across integration solutions, ensuring quality, security, and operational resilience
• Identify, manage, and mitigate integration risks, dependencies, and technical constraints
• Work with security teams to ensure all integrations meet protective monitoring and incident notification requirements, following GDS security and privacy standards

• Leadership & Delivery:

• Lead interface-level integration design activities, including requirements analysis, pattern selection, interface definition, data mapping, message structure definition, error handling, retry and reconciliation design, and preparation of high-level and detailed integration designs for delivery
• Take ownership of the production and assurance of high-level and detailed integration designs, ensuring designs are sufficiently detailed for build teams to implement with minimal ambiguity.
• Lead technical design reviews, challenge assumptions, resolve design issues, and coach delivery teams to ensure integration solutions meet enterprise standards, security requirements, and operational support needs.
• Support build, test, defect resolution, deployment readiness, and transition to BAU by providing hands-on technical guidance on integration behaviour, data flows, error scenarios, monitoring, and operational controls.
• Provide hands-on leadership across delivery, ensuring teams produce high-quality, build-ready integration designs and technically sound implementation outcomes.
• Act as the senior escalation point for integration challenges across programmes and workstreams

• Typical Deliverables
• Integration Strategy and Approach documents mapped to GDS Service Standard points.
• Integration solutions and artefacts supporting automated deployment and monitoring
• Aligned with DevOps practices.
• High-Level and Detailed Solution Integration Designs.
• Integration Catalogue and Interface Specifications.
• Interface-level design artefacts covering source-to-target mappings, message structures, orchestration flows, exception handling, retry logic, reconciliation approach, and non-functional considerations.
• API specifications, payload and message schemas, source-to-target mapping documents, sequence flows, error handling matrices, retry/replay logic, reconciliation controls, and operational runbooks.
• Data Flow and Security Models.
• Test Assurance and Transition-to-BAU artefacts.
• Evidence packs for GDS service assessments.

What We're Looking For:

• Experience:Proven experience operating as a Lead or Principal Integration Architect within large, complex enterprise environments Demonstrated ability to define integration strategy and influence architectural direction at programme or organisational level Ability to produce high-quality technical documentation and present complex integration concepts to both technical and non-technical audiences Direct experience producing detailed integration designs for complex enterprise programmes, including interface specifications, data mappings, message structures, error handling, retry/replay logic, and reconciliation approaches.
• Technical Knowledge:Strong understanding of cloud platforms (AWS, Azure) Deep understanding of integration patterns, middleware, APIs (REST/SOAP), and data transformation technologies Understanding of enterprise system landscapes and integration hubs Strong practical knowledge of API design, payload schemas, data mapping, transformations, orchestration flows, security models, observability, monitoring, CI/CD integration, and operational support considerations.
• Platform Expertise:Hands-on experience designing integrations using Oracle Integration Cloud (OIC), including connectors, transformations, orchestration flows, error handling, monitoring, and operational support considerations. Desirable: hands-on experience designing integrations using MuleSoft Anypoint Platform, including API-led patterns, RAML/OpenAPI specifications, connectors, transformations, policies, error handling, monitoring, and deployment considerations
• Leadership & Behaviour:Strategic thinker with the ability to operate at enterprise and programme level Strong leadership capability, with experience guiding teams and shaping delivery outcomes Able to operate as a hands-on technical design lead, balancing architectural authority with practical delivery support and coaching of engineers, analysts, and partner teams. Excellent communication skills, with the ability to articulate complex technical concepts in a clear, business-focused way Ability to balance strategic intent with pragmatic delivery considerations

Preferred Qualifications:

• Experience with SOC/SIEM integration and incident management processes.
• Familiarity with cloud platforms (AWS, Azure, Salesforce, ServiceNow) and hybrid integration scenarios.
• TOGAF or similar architecture certification.
• Experience supporting GDS service assessments and maintaining compliance evidence.

Join Capita – Where Innovation Meets Opportunity

Capita is a dynamic leader in consulting and digital services, helping some of the UK’s most recognised organisations transform and thrive. We use cutting-edge technology and fearless innovation to create smarter, more efficient solutions that make a real difference. Our work spans diverse sectors - government, healthcare, education, and finance - offering you the chance to contribute to projects that impact millions of lives. At Capita, you’ll be part of a collaborative, forward-thinking team that values creativity, growth, and inclusion.

We’re committed to your development and success, providing opportunities to learn, progress, and shape better outcomes for customers and communities. If you’re ready to make an impact and grow your career, Capita is the place for you. Check out our website www.capita.com

At Capita, your career can take you wherever your ambition leads. You'll become part of a diverse network of talented, forward-thinking professionals working across a wide range of disciplines and sectors. We’re committed to your growth — offering endless opportunities to expand your skills, explore new paths, and advance your career.

Join us and discover a career with purpose. #CareersWithPurpose

🤝 Customer first, always​🧑‍💻 Fearless innovation​✅ Achieve together​💙 Everyone is valued

What's in it for you?

• Homebased working
• 23 days’ holiday (rising to 27) with the opportunity to buy extra leave
• company matched pension, life assurance, 15 weeks’ fully paid maternity, adoption and shared parental leave, paternity pay of two weeks…and plenty more
• volunteering for our charity partners or a cause of your choice - opportunity to take a paid day out of the office
• access to our Employee Network Groups, which represent every strand of diversity and allow colleagues to connect and learn from each other on an open, inclusive platform
• opportunity to gain additional qualifications through our Learning Academy or apprenticeships to help develop your career

What we hope you’ll do next:

Choose ‘Apply now’ to fill out our short application, so that we can find out more about you.

We’re an equal opportunity and Disability Confident employer, which means we recruit and develop people based on their merit and passion. We’re committed to providing an inclusive, barrier-free recruitment process and working environment for everyone. If you need the job description or application form in an alternative format (such as large print or audio), or if you’d like to discuss other changes or support you might need going forward, please email [email protected] and we’ll get back to you. For more information about equal opportunities and process adjustments, please visit the Capita Careers website.

Location:

London

,

United Kingdom

Time Type:

Full time

Contract Type:

Permanent