Jamie Schembri

Delivered crucial features and owned key maintenance tasks.

• Created new flagship features with various LLMs (OpenAI, Gemini, Mistral, etc.) to infer data from photographs and pre-fill forms, saving customers significant time;
• Introduced React to build deep integration with a new, third-party print editor;
• Designed and implemented a new cloud deployment strategy and server migration with Docker, Kamal, Terraform, and GitLab CI/CD;
• Upgraded and replaced components of the existing Ruby/Rails platform, patching vulnerable software and increasing overall reliability.

Maintained and improved a large set of Ruby libraries in use across many independent (micro-)services, melding them into a cohesive framework as part of the new application platform, whilst providing support and upgrade paths for other teams.

• Designed and led implementation of the new application framework following discussions with relevant stakeholders to extract requirements.
• Maintained a number of internal dependencies which together made up the legacy Ruby / Rails application platform;
• Discovered and plugged demonstrably catastrophic security vulnerability.
• Implemented reusable, shared CI/CD components, resulting in greater consistency and a more “plug-and-play” developer experience across teams;
• Rapidly built a Slack bot to summarise threads via OpenAI on events; said bot was also used to make on-call scheduling information visible.
• Designed and implemented JSON schema validation for custom framework configuration, together with CI pipeline validation workflow.
• Automated dependency monitoring with SBOMs, providing actionable insights over hundreds of projects.
• Assembled a rudimentary low-code platform for automating common tasks with Ruby and GitHub CI.

Engineered full-stack apps for small to medium businesses with Ruby on Rails and Hotwire; worked very closely with clients to extract requirements and implement high impact features.

• Used PostGIS, Google Maps and JavaScript with Stimulus to create interactive maps used for GPS queries;
• Optimised slow and unreliable CI/CD pipelines, using parallelism to decrease test run-time by up to 95%, and leading to substantial productivity gains and lower time to delivery across the team;
• Took over administration of several EOL Windows Server machines, writing Powershell scripts for legacy data consumption and synchronization over APIs.

Ruby developer for a leading VC-funded, data-heavy app in the automotive space.

• Sustained a complex legacy Sinatra/Padrino application;
• Improved a Shopify app with Elasticsearch and React;
• Advised on separation strategies of a monolith into a microservices architecture.

Worked on WPML, one of the largest premium WordPress plugins. Primary focus was on the Rails backend and communication with other services in the SOA.

Built and maintained SaaS applications in Ruby on Rails & React for the Shopify e-commerce platform.

• Spearheaded workflow improvements, DevOps, and communication, resulting in quicker feature delivery and a sense of teamwork;
• Took ownership of code and infrastructure following a team restructure, whilst keeping systems running and customers happy;
• Worked closely with sales and customer service to prioritise and resolve concrete, customer-facing issues.

Architected web applications of various sizes under demanding time constraints.

• Developed a large enterprise SaaS application for global corporations in the catering industry, pivoting for survival early in the COVID-19 pandemic;
• Leveraged AI to generate rich metadata for a Digital Asset Management (DAM) tool used by film festivals, agencies, and educational institutions;
• Implemented custom in-house tooling with Elixir to increase engineer productivity and reduce friction in a new, Docker-based development environment.