Worked with DevOps team to ensure high-availability and performance in hybrid AWS/Datacenter/Kubernetes PCI-certified environment, using a variety of technologies, including Okta, MongoDB, Postgres, Java, Python, Chef, Airflow, Zabbix, Grafana, Rundeck, Foreman, Jenkins, Terraform, Rancher, and Kubernetes.Delivered technical infrastructure assessment of inherited proof-of-concept analytics project to Executive Team, identifying clear flaws and recommending improvements. This involved leading the full migration into existing Ops-managed environments, with integration to existing configuration management (Chef) and monitoring systems (Zabbix, Grafana, ELK), along with extensive load-testing and performance analysis to prove initial Engineering doubts around performance at scale.Implemented data ETL system using Apache Airflow; including full provisioning via Chef, and with extensive monitoring provided via metrics via InfluxDB to Grafana, and ELK stack to allow engineers without Production environment access to assist with resolving issues.Designed and implemented fully-managed AWS EBS volume building and “warming” solution to overcome AWS limitations, providing immediate availability of large model data to autoscaled EC2 speech processing instances, providing significant TCO reduction over alternative shared storage solutionsReworked Elasticsearch cluster backing logging stack to implement hot/warm lifecycle management, allowing increase in total storage while minimizing TCO, along with significant improvements of the Chef code building the ELK stack to ensure repeatability and effective DR. Additionally expanded support to OpenDistro Elasticsearch to allow introduction of standard managed logging stack into test and additional environments without increase in Elasticsearch license cost.

Lead technical operations team covering US timezone.Implemented remote orchestration for deployed auto-scaling server clusters using SaltStack, worked into deployment automation strategies.Lead design and implementation of auto-scaling version-controlled IaC architecture on AWS, with continuous delivery pipelines to ensure system stability and responsiveness.CD using Chef and a variety of testing architecture to allow automated deployment of tested infrastructure changes.Implemented multi-tenancy DB load management system to ensure equal load across database architecture as resource usage grows.

- Linux Server Administration for Web Operations team – overseeing Linux (Redhat & CentOS) and Windows (2008 R2) servers- Ensured servers were kept patched and up-to-date, increasing stability and reliablity.- Virtualised existing physical servers onto VMWare and Microsoft HyperV on Windows 2008 R2 – entire process from virtual machine creation, OS/Software configuration to decommissioning of physical server, plus monitoring and tuning of virtual machine – increasing reliablity and speed as well as descreasing TCO.- Particular experience with integration and manipulation of various data sources in order to provide usable front-end GUI- Took lead on developing and updating knowledge base on Wiki Platform (mediawiki)- Provided Third-Line Support to users of servers and other support teams- Took lead on developing Squid proxy servers to add whitelist functionality as well as internet filtering license usage and stats, resulting in increased performance for users - Took lead on patching, configuring and resolving issues with Websense Internet filtering package used by the organisation.- Hardware fault identification and resolution – direct experience of HP DL380s (G3-G5)as well as IBM xSeries rack-mounts and IBM BladeCenter Chassis/Blades.- Developed and increased knowledge on:Linux Operating Systems – primarily Redhat and CentOSServer hardware and software maintenancePHP Development and SupportApache configuration and tuningServer monitoring, configuration and tuning

- Support Analyst on a Service Desk supporting a userbase of around 5,000.- Developed and increased knowledge of Windows Operating Systems, Active Directory, Novell eDirectory, as well as bespoke applications used by staff, and Service Level Agreements. Also increased ITIL knowledge.- Responsibilities included user account maintenance, first-time-fix support of user problems, Monitoring and chasing of calls logged by users, calling back users

Intern ASP/HTML Developer on QFE (Quick Fix Engineering) Team at MSN. Resolution of bugs on MSN portals worldwide viewed by millions of users. Coded intranet site to show bugs assigned to team and to track progress.