We are seeking a senior DevOps Engineer with strong Cloud Architecture capability to lead the design and migration of an existing, data-intensive SaaS platform to AWS . This role is not a pure DevOps operations position . You will take end-to-end ownership of: Designing the target AWS architecture Translating current systems and live data pipelines into a scalable, secure, multi-jurisdiction AWS environment Leading the migration, documentation, handover, and onboarding process The platform processes large volumes of live and streaming data , supports advanced analytics and AI workloads, and must meet enterprise-grade reliability, security, and compliance requirements . Key Responsibilities Design the AWS target architecture for a live SaaS platform, including: Multi-account and multi-jurisdiction setups Security, IAM, networking, and data governance Scalability, resilience, and cost optimisation Assess the current system architecture and define a clear migration roadmap. Lead and execute the migration to AWS , minimising disruption to live data pipelines. Design and implement CI/CD, IaC, and deployment automation (e.g. Terraform, CloudFormation). Deploy and operate data-intensive services , including time-series databases, graph databases, and AI/ML inference pipelines. Containerise and orchestrate workloads using Docker and Kubernetes where appropriate. Establish monitoring, logging, and observability for production systems. Produce clear technical documentation , and support onboarding, training, and handover to internal teams. Required Skills & Experience Strong DevOps AND Cloud Architecture experience (you must have both). Proven experience designing and migrating SaaS platforms to AWS . Hands-on expertise with: AWS core services (VPC, IAM, EC2, ECS/EKS, S3, RDS, networking, security) Infrastructure as Code (Terraform preferred) CI/CD pipelines Experience operating data-intensive and live systems . Strong containerisation and orchestration skills ( Docker, Kubernetes ). Solid scripting and automation skills (Python preferred). Ability to work independently and make architecture decisions. Experience with the Following Is Highly Desirable Time-series databases (e.g. InfluxDB) Graph databases (e.g. Neo4j) AI / ML or LLM-based systems (deployment, inference, APIs) FastAPI or similar model-serving frameworks Multi-region or multi-jurisdiction cloud deployments This Role Is NOT for You If You are early-career or primarily an ops/support DevOps engineer You have not designed AWS architectures end-to-end You are looking for a long-term operational role rather than a delivery-focused contract