Transactional systems
Booking engines, time slots, pricing, taxes and server-verified online payments.
Programming
Solid web applications, from analysis to production.
A programmer-analyst since 1997, I design and maintain transactional systems in PHP and Laravel: online booking, payments, API integrations and management tools. I turn business needs into lasting solutions, and keep everyone aligned along the way.
What I bring
Where I’m most useful
API integrations
Suppliers, payment gateways, insurance and third-party services over REST, JSON and XML, with rigorous troubleshooting of data gaps.
Modernization
Upgrading legacy PHP and Perl code to PHP 8 and current Linux environments, without breaking production.
Security and compliance
Input validation, encryption of personal data and Québec Law 25 compliance tools.
Work
Recent projects
Laravel applications I designed, built and shipped to production.
Featured
XCapoter
Online booking platform built for an escape-room business
Laravel 12
PHP 8.4
MySQL
Tailwind CSS
See the project →
Featured
Fondation Le Baluchon
Website and management portal for a community foundation
Laravel 12
PHP
MySQL
JavaScript
See the project →
Featured
Desert Howlers Guild
Community portal for an online gaming guild
Laravel 13
PHP 8.4
Tailwind CSS 4
Alpine.js
See the project →
Music @ Charles
Private app for organizing jam sessions between musicians
Laravel 12
PHP
MySQL
JavaScript
See the project →
charlesheroux.ca
This site: a bilingual portfolio with an admin portal
Laravel 13
PHP 8.4
MySQL
CSS
See the project →
Toolbox
Technologies
Backend
Frontend
Databases
CMS
Tools
AI
Career
Development experience
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2022 – 2026
Programmer-analyst
Softvoyage · Laval
Built and maintained booking engines and transactional systems for travel agencies.
- Integrated and troubleshot external APIs: payments, insurance, travel suppliers and third-party services.
- Analyzed gaps between supplier data and booking requirements, and designed the fixes.
- Modernized legacy PHP and Perl code to PHP 8.2+, Perl 5.32 and current Linux environments.
- Fixed production issues using Sentry, application logs, SQL analysis and scenario reproduction.
- Strengthened input validation, form robustness and server-side security.
- Worked with internal teams, clients and support to ship to production.
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1997 – present
Programmer-analyst and transactional web developer
Self-employed
Custom contracts handled directly with clients, from requirements analysis to delivery. Clients: CSN, Argo-Tech, ClicSoft, FondAction, XCapoter.
- Laravel transactional booking website: time slots, pricing and taxes, admin portal and online payment.
- Designed and customized WordPress sites, adapting plugins and building custom features.
- Built and modified accounting, HR and ERP software and internal management tools.
- Financial reports, automations and application modules, with user training.
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2015 – 2020
IT Director (part-time)
Print Our Home · Laval
Responsible for the company’s IT infrastructure, alongside my main job.
- Managed servers, workstations, databases and IT equipment.
- Secured and maintained the IT infrastructure.
- Analyzed technology needs and recommended solutions aligned with business goals.
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2014 – 2020
Programmer-analyst and coordinator
Bell Mobility (BCE) · Montréal
Analyzed business requests and coordinated a team of 18 programmers.
- Analyzed business requests and recommended technical solutions.
- Coordinated a team of 18 programmers: task assignment and delivery follow-up.
- Built internal tools in PHP, JavaScript, HTML and SQL.
- Wrote functional documentation and supported users at go-live.
Professional development
- 2019 University course in Java programming TÉLUQ, Université du Québec
- 2016 IBM Process Designer Advanced programming in IBM Process Designer and Visio document design.
Involvement and affiliations
- 2026 Poll clerk Élections Québec 2026 Québec general election: assisting the deputy returning officer and keeping the poll book up to date, while protecting the secrecy of the vote.
- 2021 Deputy returning officer Elections Canada 2021 federal general election: in charge of a polling station, from the smooth running of the vote to the ballot count.
- 2018 – 2025 Vice-President Fondation Le Baluchon
- 2016 – 2020 President CPE À Petits Pas
- 2018 – 2019 President CoopPOHÉ
- Member Mensa Canada
Testimonials
What colleagues say
Charles is an excellent team player. He knows how to create a natural spirit of collaboration within the team. Always ready to share his knowledge and offer his support, Charles actively contributes to the team’s collective success.
His positive attitude, his listening skills and his ability to work effectively with different profiles make him a highly valued colleague. Beyond his professional skills, he brings real human value to the team.
I worked with Charles on several training, teaching and learning-content projects.
Through these different experiences, I came to appreciate his professionalism, his intelligence, his honesty and his creativity. He honours his commitments and deadlines, while placing real importance on the quality of the work.
Charles is also a natural people person. He communicates with ease, in French as well as in English, works effectively with all kinds of people and naturally helps create a pleasant, professional working atmosphere.
I have always greatly enjoyed working with him and recommend him without hesitation.
Looking for a programmer-analyst or a trainer in Laval or on the North Shore?
Let's talk about your team and your projects. I reply quickly.