AWS Application Migration Architect

Salary: £38,000 - 68,000 per year

Requirements

• 5 years of dedicated cloud architecture experience, including at least 2 years of hands-on experience executing complex AWS migrations
• Active AWS Certified Solutions Architect - Professional credential
• Extensive knowledge of core AWS services, specifically VPC, IAM, KMS, CloudWatch, CloudTrail, AWS Config, S3, EC2, RDS, and Lambda
• Strong expertise in designing AWS Landing Zones and workload isolation patterns
• Hands-on experience with Infrastructure as Code tools, specifically Terraform or CloudFormation, and migration tooling such as AWS Application Migration Service (MGN) and Database Migration Service (DMS)
• Experience drafting assessment packs, as-is/to-be architectures, migration roadmaps, and ADRs
• Basic scripting capabilities in Python or Bash
• Exceptional stakeholder communication skills, with the ability to bridge technical designs with business requirements
• Prior experience executing large legacy-to-cloud migrations within highly regulated environments is highly desirable
• Experience with Kubernetes/EKS tooling such as Argo CD, Flux, Prometheus, Grafana, or Istio is highly desirable
• A broader multi-cloud perspective, such as Azure or GCP, is highly desirable

Responsibilities

• Lead architecture assessments of legacy application estates
• Evaluate technology stacks, data flows, interfaces, and operational models
• Define target landing designs, including account structures, network placements, compute and storage patterns, and IAM configurations using standard AWS landing zone architectures
• Formulate migration treatments such as rehost, replatform, and refactor
• Address dependencies, cutover sequences, and rollback strategies
• Design integration patterns for S3, VPC, IAM, KMS, CloudWatch, and CloudTrail
• Define managed Kubernetes/EKS landing patterns where container runtimes are required
• Ensure all designs are translated into Infrastructure as Code using Terraform or CloudFormation
• Author Architecture Decision Records (ADRs), transition-state designs, migration design documents, and operational runbooks

Technologies

• AWS
• Lambda
• Architect
• Azure
• Bash
• Cloud
• CloudWatch
• DMS
• EC2
• GCP
• Grafana
• IAM
• Istio
• Kubernetes
• Network
• Prometheus
• Python
• Terraform
• Security

More

We are offering a contract AWS Core Architect role based in a hybrid London setup, inside IR35, with BPSS / SC clearance required. In this role, you will help shape how legacy application estates land, run, and operate on our newly established AWS core cloud platform. The day rate is £600.00 - £650.00, and you will be working with a role focused on architecture leadership, cloud migration strategy, and AWS platform design.

last updated 29 week of 2026