Alex Barrett Email & Phone Number

London, England, United Kingdom

• Led the transition of a data-heavy project to a client-server model, leveraging ClickHouse, Cube.js and Apollo GraphQL to greatly improve performance, reduce data transfer to the front-end, and provide a scalable.
• Designed optimised ClickHouse database schemas to support fast aggregation and querying across a large 500M row dataset.
• Developed a front-end using React and TypeScript, incorporating AG Grid for advanced data grid functionality, including SSRM (server-side row modelling), tree hierarchies for drilldowns, dynamic filtering, custom cell.
• Collaborated extensively with data engineering teams and other stakeholders to ensure robust data flows between applications and services, utilizing Redis to publish messages for ingestion by other applications and.
• Acquired in-depth expertise in ClickHouse and Cube.js, providing technical guidance to the team and elevating the team’s ability to work with these technologies.

London, England, United Kingdom

• Led a two-person team to develop a PWA (Progressive Web Application) using React, MUI and service workers to deliver a compelling user experience with offline browsing and an offline-first data loading strategy.
• Developed an AWS-based, serverless application using Cassandra and ElasticSearch for sophisticated data modelling and fast keyword/faceted searches. Assumed ownership of specific architectural components: CSV data.
• Developed a microfrontend in React and TypeScript, integrated within a company-wide web application framework and powered by a REST API built with Node.js and Express on the back-end, and using RxJS on the front-end as.
• Authored clean, scalable, and well-tested code for multiple projects with a focus on high-performance applications and user-centred design.

Truro, England, United Kingdom

• Lead developer on successful projects using agile methodology. Involved in specification, architecture, implementation, deployment and maintenance; all phases of the SDLC. Planning with Jira and Pivotal Tracker.
• Worked on-site with project stakeholders to detail project specifications and suggest workflow improvements.
• Involved with projects for major clients including Timpson, GDS and a national law enforcement agency.
• Developed a React application following Flux architecture with a supporting REST API and administration area.
• Introduced automated builds and local environments via use of Jenkins, Vagrant and Docker to improve development practices.
• Administered Linux servers running variations of Nginx, PHP-FPM, MySQL, Redis, Varnish Cache. Configured load-balanced servers using Lsyncd and Csync2.

Falmouth, England, United Kingdom

• Developed and maintained projects across a range of platforms including Drupal, WordPress, Ubercart, Drupal Commerce, Drupal Commons and Backbone.js. Often entrusted to be the sole developer on projects.
• Operated in an agile environment, participating in daily stand-ups.
• Collaborated with the design team to create pixel-perfect responsive websites and provide technical feedback into the design process.
• Authored custom Drupal modules and themes providing clients with bespoke functionality and designs.
• Developed a custom WPF theme using C# and XAML for a client in the financial sector.
• Met with clients to translate business requirements into technical specifications

Truro, England, United Kingdom

• Developed and maintained a bespoke PHP application relied upon by the company to schedule, coordinate, quote and invoice all work as well as manage staff absences – replacing existing paper-based systems that amassed.
• Designed and developed multiple additional applications that interfaced with the primary application, including a fully AJAX mobile client for Windows Mobile devices and a B2B web application exposing functionality to.
• Designed and developed a USB-based client-server authentication system using C#/WinForms and Python.
• Designed custom SQL tables, views, stored procedures and indexes for the applications to model company processes.
• Integrated heavily with external APIs and services including Google Maps, SMS and the Royal Mail PAF database.
• Administered Linux servers with LAMP stack, FTP and backup services.