Toby Walls

Terraform | AWS | ECS | EKS Leading the platform team at Sano; - Architecture, deployment and maintenance of multi-account AWS cloud estate - Migration and rearchitecture of backend services from Lambda to ECS - Building reusable terraform modules and deployment patterns - Ensuring observability, monitoring and alerting (Honeycomb, AWS Cloudwatch, SNS) - Design and build of high-performance bioinformatics processing platform

Building, maintaining and improving fault tolerant, scalable big-data pipelines in AWS using: - Terraform IaC - Github Actions & Concourse CI/CD deployment - Unit tests, Behave test framework, static analysis & linting - AWS EMR with HBase, Spark and Hive Outcomes include: - 4x reduced runtime for ~10TB dataset processing - Reduced impact on shared services by implementing caching and incremental processing - Increased knowledge of AWS EMR, Apache tools, CI/CD best practices among client team through structured mentoring

Improving platform stability and adherence to SLAs in an agile & DevOps environment. Outcomes included: - Improvements to dependency tracking, earlier start/completion times for data products by approx. 20% (Cloudwatch, EMR, Lambda, SNS) - Improvements to failure handling, rerun time reduced by over 90% - Behavioural testing implemented for RBAC tagging to ensure data security

Deployment of cloud-native big data pipelines in AWS for Public Sector Organisation - AWS EMR, lambda, cloudwatch, IAM - Apache Hadoop, pySpark, Hive, Hudi - Terraform - Deployment via Concourse CI

Tracking 15k network service migrations for Public Sector Organisation - Python / Django Web App - Containerisation (Docker) - CI/CD (Jenkins) - SQLServer, PostgreSQL, PowerBI

Maths, Further Maths, Physics, Chemistry