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DevOps & Software Developer

Building systems
that scale.

I'm Jack O'Shea, a developer focused on infrastructure automation, iOS and web development, and creating reliable software that solves real problems.

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Featured Projects

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Portfolio Website & Blog

A SvelteKit portfolio with MDsveX-powered blogging, automated OG image generation, and a Dockerized deployment pipeline from github actions to Hetzner.

SvelteKitSvelteMDsveXShiki

Systemic - Personal Habit & Goal Tracking

A local-first iOS productivity app that reduces habit-tracking friction with automatic tracking, daily check-ins, and a structured reflection system.

SwiftSwiftUIGRDBSQLiteData
Expertise

Skills & Technologies

A curated toolkit refined through years of building production systems.

Backend

.NETC#PythonTypeScriptREST APIsSQLPostgreSQL

Mobile

iOSSwiftSwiftUIAndroidKotlin

DevOps

TerraformDockerKubernetesAzureCI/CDJenkins

Tools

GitLinuxGitHub ActionsAzure DevopsMonitoringAgileIaC
2+
Years Experience
10+
Solo Projects Created
20+
Technologies
From the Blog

Recent Writing

All Posts
7 min read

Automating OG Image Generation with Playwright

How I built a CI pipeline that generates Open Graph images for every blog post and project, caches them on Cloudflare R2, and keeps page loads fast.

PlaywrightCI/CD
3 min read

Building Offline-First iOS Apps with GRDB

Why I use SQLiteData + GRDB for Systemic, and the local-first patterns that keep queries fast, testable, and predictable.

SwiftiOS
3 min read

SwiftUI Theming Patterns That Scale

A practical, type-safe theming system for SwiftUI with multiple palettes, appearance modes, and environment-driven colors.

SwiftSwiftUI
6 min read

Building a Rich Content System with MDsveX

How I built a flexible content authoring system for my portfolio using MDsveX, custom Svelte components, and Shiki syntax highlighting.

SvelteKitMDsveX
Let's Connect

Have a project in mind?

I'm always interested in hearing about new opportunities and collaborations. Let's discuss how we can work together.

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