Available for opportunities

Ronald Mojica

Senior Software Engineer

Building high-performance scheduling systems at enterprise scale. 15+ years turning complex workforce problems into elegant, fast interfaces.

Get in touch

I'm a Senior Software Engineer based in Sydney, currently leading the core Scheduling squad at Deputy -- one of Australia's largest workforce management platforms. I specialize in high-performance web architecture, turning legacy systems into fast, scalable products that handle enterprise workloads. I also build AI-augmented developer tooling -- from MCP servers to LLM-powered code generators -- to make engineering teams move faster.

01

Performance Engineering

Virtualized rendering systems handling 50k+ shifts. Led the Performance Task Force delivering 40% speed gains across core modules.

02

Design Systems & UI Architecture

Maintained Deputy Copilot serving 50+ engineers. Migrated 200+ CSS tokens, built accessible composite components, and established Storybook documentation standards.

03

AI-Augmented Tooling

MCP servers for context-aware design systems, VS Code extensions with LLM-powered component generation, and open-source TypeScript SDKs.

04

Compliance Engineering

Architected the Regular Working Hours engine with 4-weekly rolling validations and consent workflows for labor law adherence.

2019 -- 2026
Senior Software Engineer
Deputy
Sydney, Australia

Led the core Scheduling squad. Architected virtualized roster rendering, performance task force, compliance engines, design system infrastructure (Deputy Copilot), and developer tooling for one of Australia's largest workforce platforms.

2018 -- 2019
Senior Frontend Developer
3P Learning
Sydney, Australia

Led the modernization of Flash-based admin pages into robust web applications using React.js and React Redux. Integrated test automation with Cypress, Selenium, and Robot Framework.

2015 -- 2017
Lead Engineer
Aleph Labs
Singapore

Led the Standard Chartered Online Banking UI transformation across 15+ countries. Delivered enterprise web applications for banking clients including UOB and Bangkok Bank.

2012 -- 2015
Senior Web Developer
Novenix Inc
Developed and maintained web applications for millions of daily users. Led frontend architecture using AngularJS and ExtJS.

2007 -- 2012
Web Developer
Various roles
Full-stack web development across multiple agencies and companies. PHP, MySQL, jQuery, and early JavaScript frameworks.

Vue.js TypeScript JavaScript React TanStack Virtual Design Systems Storybook Design Tokens WCAG Accessibility MCP / LLM Tooling Cypress Vitest Playwright Jest GitHub Actions AWS CI/CD Micro-frontends Feature Flags Performance Optimization

Interested in working together? I'm open to senior and staff-level roles, contract work, and consulting engagements.