Aug 2026 to present
Co-Owner & Software Developer
Cedaris Supply & Solutions Ltd. · Ottawa, ON
Designed, shipped and maintain the company's production platform, described above, alongside running the business.
Full-stack software developer · Ottawa, ON
Gabriel Al-Rahi
I build software that people use to run their businesses. Most recently, that was the platform my own company runs on every day.
- 2026
- Co-op Student of the Year, Algonquin College
- 120+ tests
- guarding the Cedaris platform, including its bookkeeping
- ~2 weeks
- from an empty repository to live production
- 8 months
- as a ServiceNow developer co-op at Optovia
- 3.83 GPA
- Computer Programming diploma
Featured work
The platform that runs Cedaris
Cedaris is the PVC fencing supply and installation company I co-own in Ottawa. We were managing quotes, invoices, inventory, suppliers and the books across five different apps, so I designed and shipped one platform to replace them.
- Inventory, quoting, invoicing with PDF and email delivery, a CRM pipeline, a customer portal and double-entry bookkeeping with HST.
- Money is stored in integer cents. The ledger rejects any entry where debits and credits differ, and an invoice posts in a single database transaction.
- More than 120 automated tests, including a simulated month of trading that proves the books balance.
- Deployed on Railway with managed PostgreSQL and gated migrations through GitHub CI/CD. One codebase serves the public site and the back office.
How it was built. I used Claude Code for implementation and owned the requirements, architecture, code review, testing and deployment. I am now working through the stack by hand so I can write every part of it myself.
- Next.js 15
- React 19
- TypeScript
- Prisma
- PostgreSQL
- Tailwind CSS
- GitHub CI/CD
- Railway
Visit cedaris.ca (the back office sits behind a login)
Try the posting rule
| Account | Debit | Credit |
|---|---|---|
| Accounts Receivable | ||
| Sales Revenue | ||
| HST Payable (13%) | ||
| Totals |
A small illustration of the rule the platform enforces, computed in integer cents in your browser. Example figures, not company data.
Real screens from the live system. Client names and amounts are blurred.
Experience
Where I've worked
May 2025 to Dec 2025
ServiceNow Developer (Co-op)
Optovia · Ottawa, ON
Algonquin College Co-op Student of the Year, nominated by Optovia
- Assisted in developing the Enterprise Architecture Accelerator, carrying technical tasks from requirements to deployment through Agile Scrum sprints under my supervisor's direction.
- Extended ServiceNow's Application Portfolio Management assessment engine with custom scoring and normalization logic in reusable Script Includes.
- Built UI Builder workspaces and executive dashboards reporting application health, business value and technical condition.
- Demoed the product to clients and turned their feedback into platform features.
- Mentored and onboarded new co-op developers and co-wrote the program's onboarding documentation.
Apr 2023 to Apr 2024
Co-Owner / Operator
Vapeasy · Ottawa, ON
Ran daily operations of a retail business: staff, vendors, purchasing and inventory forecasting, with bookkeeping in QuickBooks and point of sale in Lightspeed.
Oct 2021 to Oct 2022
COVID-19 Screening Supervisor
Children's Hospital of Eastern Ontario · Ottawa, ON
Supervised a team of 5+ staff in a fast-paced hospital setting and used screening data to improve workflow.
Projects
Other things I've built
Jan to Apr 2026 · Team lead
EcoVert Workforce Management System
A scheduling system for a real client. I led the team, gathered requirements and ran sprints, and built role-based login plus a calendar for creating, assigning and tracking jobs.
- Java
- Jakarta EE
- PrimeFaces
- MySQL
- Maven
Apr 2025 · Team project
Public Transit Fleet Management System
A three-tier enterprise web app covering vehicle GPS tracking, fuel and energy monitoring, maintenance alerts and analytics dashboards, built on GoF design patterns and layered MVC.
- Java 21
- Servlets
- MySQL 8
- Tomcat 9
Jul 2024 · Pair project
Pizza Ordering Website
A full ordering flow with accounts, cart, checkout and reviews on an eight-table MySQL schema with triggers. I wrote the PHP server-side logic and SQL behind it.
- PHP
- JavaScript
- MySQL
- HTML5
- CSS3
Skills
What I work with
- Languages
- Java, JavaScript, PHP, SQL, PL/SQL, Python, Dart
- Frontend
- HTML5, CSS3, React, PrimeFaces, Flutter
- Backend & APIs
- Jakarta EE, Servlets, RESTful APIs, MVC, role-based authentication
- Databases
- PostgreSQL, MySQL, Oracle 19c, Microsoft SQL Server, MongoDB, Neo4j
- Platforms & tools
- ServiceNow (UI Builder, Business Rules, Script Includes, APM), Git and GitHub, CI/CD, Railway, Maven, Tomcat
- Practices
- Agile and Scrum, automated and unit testing, GoF design patterns, UML and ERD, code review
- AI-assisted development
- Daily use of Claude Code, ChatGPT and Gemini, with full ownership of reviewing and testing what they produce
- Currently learning
- TypeScript, Node.js, Next.js, Prisma
- Spoken languages
- English and Arabic, both native
Education
Where I studied
2023 to 2026
Computer Programming Diploma
Algonquin College · Ottawa, ON
GPA 3.83. Enterprise application programming, object-oriented design patterns, advanced databases, web and backend development, systems analysis and design.
2017 to 2021
Bachelor of Health Sciences
University of Ottawa · Ottawa, ON
Magna Cum Laude, Dean's Honour List, GPA 3.77.
Contact
Get in touch
I'm open to full-stack and backend developer roles in Ottawa, and to freelance projects.
gabz.rayz@gmail.com