Applications Architect – Modernisation in London

Due to the customer requirements successful applicants must be eligible for high level UK Security clearance. Frequent travel to DXC & Customer sites.

As part of our overall investment and growth strategy in the UK we are hiring experienced Application Architects to join our team. The Application Modernisation Architect is responsible for leading the transformation of legacy applications into modern, scalable, and cloud‐native solutions. This role involves assessing existing systems, designing future‐state architectures, and guiding development teams through the implementation of modern technologies and practices. The architect ensures alignment with business goals, technology standards, and security requirements.

Over time you'll have the opportunity to work on a wider range of assignments, e.g. Software development, platform automation, applications management, across a broad portfolio of clients from many sectors e.g., Public Sector, Health, Finance, Energy, Transport, Retail, and Manufacturing, encompassing a wider range of business challenges. You'll thrive using agile methods and enjoy working collaboratively with business units and multidisciplinary teams. You'll contribute to the digital transformation of an organization.

• Assessment & Strategy
  • Evaluate legacy applications and infrastructure to identify modernisation opportunities.
  • Develop modernisation roadmaps aligned with enterprise architecture and business strategy.
  • Recommend appropriate cloud platforms, microservices architectures, and modernisation patterns (e.g., rehost, refactor, rearchitect).
• Architecture & Design
  • Design scalable, resilient, and secure application architectures using modern technologies (e.g., containers, serverless, APIs).
  • Define integration strategies with existing systems and third‐party services.
  • Ensure architectural decisions support DevOps, CI/CD, and agile delivery models.
• Technical Leadership
  • Collaborate with cross‐functional teams including developers, DevOps engineers, and business stakeholders.
  • Provide technical guidance and mentorship on modernisation best practices.
  • Lead proof‐of‐concept initiatives and technology evaluations.
• Governance & Compliance
  • Ensure solutions comply with enterprise security, data governance, and regulatory requirements.
  • Establish architectural standards and documentation for modernised applications.
• Continuous Improvement
  • Stay current with emerging technologies and industry trends in application modernisation.
  • Promote innovation and continuous improvement across the application portfolio.

• Proven experience in application architecture and modernisation projects.
• Strong knowledge of public and hybrid cloud platforms.
• Expertise in microservices, containerization (Docker, Kubernetes), and API design.
• Familiarity with legacy systems (e.g., monolithic applications, mainframes) and migration strategies.
• Experience with Agile and DevOps practices and CI/CD pipelines.
• Excellent communication and stakeholder management skills.
• Ability to adapt quickly to new technologies.
• Awareness of emerging security issues.
• Awareness of emerging AI trends such as generative AI, large language models, and edge AI, and their impact on application architecture.

• Bachelor's or Master's degree in Computer Science, Engineering, or related field.
• Certifications in cloud architecture (e.g., AWS Certified Solutions Architect, Azure Solutions Architect Expert).
• Experience with enterprise architecture frameworks (e.g., TOGAF).
• Agile certification.

DXC Technology helps global companies run their mission critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private and hybrid cloud environments. With decades of driving innovation, the world's largest companies trust DXC to deploy the enterprise technology solutions to deliver new levels of performance, competitiveness, and customer experiences.

As an award‐winning, industry‐leading, Technology firm we offer some of the best experiences for our employees and clients. We offer very competitive salaries coupled with an exciting benefits package including private medical insurance, gym membership discounts, pension contribution schemes and much more! We believe in nurturing an environment of continuous growth and development, with free training from our expansive upskilling library available to all our employees at any time.

We encourage applications from those who may require flexibility in their working life for whatever reason, and/or those who are returning to the workplace. We're committed to providing this flexibility on a long‐term basis. DXC Technology is committed to the development of a fully inclusive and sustainable workforce. All applications for employment are assessed purely on merit, against the capabilities and competencies required for the role. DXC Technology does not discriminate on the basis of gender, ethnic origin, race, faith, or sexual orientation.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritises in‐person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We're committed to fostering an inclusive environment where everyone can thrive.