Solo-built the core of a civic-tech mapping platform now in live pilot with city administrations. Spatial queries, native-feeling mobile UI, and multi-step campaign workflows.

• Solo-built the core of a civic-tech platform for participatory neighbourhood mapping, now in live pilot with city administrations, associations, and initiatives.
• Built structured "mapping call" campaigns where residents place geo-located ideas, complaints, and proposals directly on a map of their neighbourhood.
• Implemented spatial queries with SQLite/SpatiaLite and map rendering with MapLibre.
• Built highly-interactive, native-feeling mobile UI (bottom-sheet interactions) with Inertia and Svelte 5 - most residents arrive via a shared link on their phone.
• Implemented image uploads and processing, and multi-step mapping-call workflows.
• Built an admin interface for organisations to manage their campaigns, using the default Rails stack (Hotwire, server-rendered views).
• Delivered a product that works both as a native-feeling mobile tool for residents and a desktop tool for planners browsing the feed.

Keep a 3,000+ record academic research platform, live since 2012, current and habitable. Rails upgrades, performance work, and careful refactoring of legacy code.

• Maintain a 3,000+ record academic research platform live since 2012 (persons, places, sources, images, e-texts).
• Rails version upgrades, dependency patches, and server administration.
• Performance work, bugfixes, data backups, and occasional schema changes.
• Careful refactoring of legacy code where a rewrite would lose institutional knowledge.

Task-management product used by millions. Led the migration to Kubernetes and introduced OpenTelemetry tracing across the stack. Owned GraphQL & REST APIs serving iOS, Android, desktop, and web.

• Backend and full-stack engineering on a task-management product (Kanban boards, dashboards, automations, integrations) used by millions of users.
• Designed and evolved GraphQL and REST APIs serving native iOS, Android, desktop, and web clients.
• Led the migration of production infrastructure to Kubernetes.
• Introduced OpenTelemetry-based observability across the stack.
• Background job infrastructure with Sidekiq; performance work and refactoring of aging subsystems.
• Code review, mentoring, and sustained product engineering against SLA and enterprise constraints.

• Built an Eclipse refactoring plugin.
• Set up continuous integration with Docker and Jenkins.

• Developed test-automation extensions in Java, C#, and Delphi.