AWS Solution Architect - Payments - 6 months

• Design and own end-to-end AWS solution architectures for payment-related systems and services
• Lead architectural decisions for high-availability, high-throughput transaction platforms
• Ensure solutions meet security, resilience, performance, and cost-optimisation standards
• Work closely with product managers, delivery teams, developers, and third-party suppliers
• Provide architectural governance, including design reviews and technical assurance
• Ensure compliance with PCI DSS, government security standards (eg NCSC, GDPR), and DVLA policies
• Support cloud migration and modernisation initiatives, including Legacy payment platforms
• Produce clear architecture artefacts (HLDs, LLDs, diagrams, decision records)
• Mentor and support engineers and junior architects across teams
• Engage with central government digital communities and best practices

• Proven experience as a Solution Architect in complex, large-scale environments
• Strong hands-on experience designing solutions on AWS, including services such as:

• EC2, ECS/EKS, Lambda
• API Gateway, ALB/NLB
• RDS, DynamoDB, S3
• IAM, CloudWatch, CloudTrail, KMS

• Demonstrable experience delivering payment systems, including:

• Online payment processing
• Integration with payment service providers (PSPs)
• Transaction management and reconciliation

• Solid understanding of PCI DSS and secure payment architecture patterns
• Experience designing highly available, resilient and fault-tolerant systems
• Strong knowledge of REST APIs, event-driven architectures, and microservices
• Ability to communicate complex technical designs to both technical and non-technical stakeholders

Desirable Skills & Experience

• Experience working within UK Government or public sector organisations
• Familiarity with GDS standards, Technology Code of Practice, and Service Assessments
• Experience with infrastructure as code (eg Terraform, CloudFormation)
• Knowledge of CI/CD pipelines and DevSecOps practices
• AWS certifications (eg AWS Certified Solutions Architect - Professional)
• Experience with fraud prevention, monitoring, and payment analytics