---
title: Résumé — Jason Irwin
url: https://jasonirwin.ca/resume.md
description: Professional résumé for Jason Irwin — software developer and English language instructor based in Komaki, Aichi, Japan.
last_modified: 2026-05-28
---

# Jason Irwin — Résumé

Location: Komaki, Aichi, Japan
Email: jason@matigo.ca
Website: https://jasonirwin.ca/

## Profile

Software developer with over 25 years of professional experience, focused on systems built to last. Works comfortably across the stack — from database architecture to native iOS. Background spans enterprise software, educational technology, and independent iOS development. Multilingual working environments (English and Japanese). Privacy-first design is a core principle, not a feature.

## Experience

### Senior Expert — Berlitz Japan, Tokyo, Japan (2011–2025)

Led development of internal enterprise systems supporting language training operations across Japan. Designed and maintained Advantage, a custom lesson management system deployed across hundreds of locations nationally. Built Mimosa, a digital textbook platform for Asia-Pacific and Latin American markets. Developed a lightweight audio streaming platform optimised for low-bandwidth mobile connections.

### Senior Database Developer — Naked Technology, Tokyo, Japan (2010–2011)

Database architecture and development for web-based business applications. Query optimisation, schema design, and data integrity for high-volume transactional systems.

### Instructor — Berlitz Japan, Nagoya, Aichi, Japan (2007–2010)

English language instruction for business and general learners, one-on-one and group formats. Curriculum development aligned to CEFR standards. Cross-cultural communication coaching for professionals working in international environments.

### Junior Developer — Teldon International, Richmond, BC, Canada (2002–2007)

Full-stack development on web-based and internal business applications. Customer-facing tools and back-office systems for a print and publishing company.

## Notable Projects

- **Advantage** — Custom lesson management system, deployed across Berlitz Japan's national network.
- **Mimosa** — Digital textbook platform for Asia-Pacific and Latin American markets.
- **Audio Streaming Platform** — Lightweight lesson audio delivery optimised for low-bandwidth mobile.
- **10Centuries** — Independent publishing and social platform (personal project).
- **Trek Log** — iOS GPS route recorder. https://apps.apple.com/app/trek-log/id6762107098
- **Foursight** — iOS daily photography challenge. https://apps.apple.com/app/foursight-photo-challenge/id6765605938
- **4615** — iOS sliding tile word puzzle.

## Education

DeVry Institute of Technology, Mississauga, Ontario, Canada — Computer Science (1999)

## Skills

### Spoken Languages
English (native), Japanese (professional working proficiency)

### Programming Languages
C#, PHP, JavaScript, Python, Swift, SQL

### Databases
MySQL, SQL Server, PostgreSQL, Redis, SQLite

### Platforms & Infrastructure
Linux (Ubuntu), macOS, Docker, WireGuard, Cloudflare, Apache, Nginx, ZFS

### Web & APIs
HTML5, CSS3, REST API design, JWT authentication, Django, vanilla JavaScript

### Mobile
iOS development (Swift/SwiftUI), App Store deployment, local-first architecture, iCloud sync, multilingual localisation

### Creative & Content
Video production and editing, YouTube content creation, audio recording and production, photography, long-form writing

### Education
English language instruction (one-on-one and group), curriculum development, CEFR framework, business communications, cross-cultural communication