Developer. Builder. Curious human.

Raymond
Duong.

Senior Full Stack Developer & Co-Founder

I build customer portals, financial applications, and websites that make everyday things work better.

View my workDownload resume
Raymond Duong travelling
Based in Calgary, Canada Usually planning the next trip.

Currently Building at ATCO & co-founding CollectX

Previously ATB Financial Brightside Arterys

01 / Selected work

Built for the real world.

A few things I've helped bring to life, from customer self-service to bringing a community together.

ATCO Mexico Workflow illustration
Billing & reporting data
Customer portal
ReportsUploadsDownloads

From manual workflows to self-service.

ATCO / Customer experience

Putting customers
in control.

Independently architected, designed, and built ATCO Mexico's customer portal, replacing manual billing and data aggregation with self-service reporting, uploads, and downloads.

My role Architecture, design & full stack development

  • TypeScript
  • React
  • Node.js
  • GCP
More about my role
ATCO Electric Outcome illustration
Before2 weeks
After2 days

Less waiting. Faster quotes.

ATCO / Self-service tools

A faster path
to a quote.

Rebuilt ATCO Electric's self-service estimator, reducing quote processing time from two weeks to two days.

2 weeks 2 daysQuote processing time

My role Senior Full Stack Developer

More about my role
CollectX Event illustration
COLLECTX

TCG. Sports cards.
Collectibles.

7K+Attendees across two events
150+Vendor applications

Bringing Calgary's collecting community together.

CollectX / Events & community

More than an event.
A community.

Co-founded CollectX, a Calgary event for trading card games, sports cards, and collectibles. Across two events, we welcomed 7K+ attendees and generated $150K+ from vendor sales, admissions, and sponsorships.

Designed and built collectx.ca, using OnTreasure iframe embeds and redirects for vendor signups and ticket purchases.

My role Co-Founder & website developer

$3.1K+ raised for the Alberta Children's Hospital Foundation.

Visit CollectX (opens in a new tab)More about my role

02 / Experience

A little of
my journey.

Building products, improving systems, and learning along the way.

Download full resume

ATCO

Senior Full Stack Developer

Canada (Remote)

Jan 2025 - Present

  • Independently architected, designed, and built ATCO Mexico's customer portal, replacing manual billing and data aggregation workflows with self-service reporting, uploads, and downloads.
  • Developed the frontend for a bursary and scholarship application portal, integrating backend APIs and Okta-based two-factor authentication to deliver a secure application experience.
View full roleShow less
  • Rebuilt ATCO Electric's self-service estimator, reducing quote processing time from 2 weeks to 2 days.
  • Led technical modernization across multiple repositories, upgrading dependencies and runtimes, addressing technical debt, and improving application stability, maintainability, and long-term supportability.
  • Established unit tests across repositories, strengthening automated quality checks and release confidence.

Tech TypeScript, React, Next.js, Node.js, Firebase, GCP, Cloud Run Functions, Docker, Git, CI/CD

CollectX

Co-Founder

Calgary, AB

Oct 2025 - Present

  • Scaled to 7K+ attendees in 2 events, generating $150K+ from vendor sales, admissions, and sponsorships.
  • Built and deployed the CollectX event website with OnTreasure iframe embeds and redirects for ticket sales and vendor signups, supporting 4K+ attendees and 150+ vendor applications.
View full roleShow less
  • Raised $3.1K+ for the Alberta Children's Hospital Foundation through ticket-sale donations.
  • Grew the community to 2K+ followers and 150K+ impressions through targeted marketing campaigns.

ATB Financial

Full Stack Developer

Calgary, AB (Remote)

Feb 2022 - Dec 2023

  • Rebuilt BizBank's frontend with React, improving application performance, responsiveness, and maintainability.
  • Coordinated frontend, backend, and security teams through a fraud API migration and production rollout.
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  • Created engineering standards adopted by 50+ engineers, improving development consistency and onboarding.
  • Integrated security scanning into CI/CD pipelines, reducing API vulnerabilities by 60%.
  • Maintained 90%+ automated test coverage to reduce production regressions and improve release confidence.

Tech TypeScript, JavaScript, React, Node, Java, Python, Git, CI/CD, MongoDB, Express

Brightside

Software Developer

Calgary, AB (Remote)

Oct 2019 - Feb 2022

  • Integrated Interac e-Transfer, enabling $100M+ in transaction volume across 100K+ users.
  • Led development of a referral system that increased customer acquisition by 25x.
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  • Designed and built a notification microservice to improve user engagement and account security.
  • Delivered a partner rewards feature that increased customer acquisition and spending by 15%.
  • Implemented Mixpanel analytics to track user behavior and inform product decisions.

Tech JavaScript, React, Node, Java, Python, MongoDB, Git, CI/CD, Next

Arterys

Software Engineer Intern

San Francisco, CA (Remote)

Aug 2017 - Sept 2018

  • Developed automated testing patterns with PyTest, accelerating test execution and defect identification.
  • Increased test reliability by eliminating flaky tests, reducing false failures by 50%.
View full roleShow less
  • Improved application monitoring, contributing to 99.9% uptime and faster incident recovery.

Tech JavaScript, Angular, Bash/Shell, Python, Git, Docker

03 / Beyond the code

Hi, I'm Raymond.

I'm Raymond, a developer based in Calgary. Outside of work, you'll usually find me on a badminton court, planning my next trip, or looking for something good to eat. I'm a big foodie and love trying new restaurants and discovering local favourites when I travel. I'm always up for a restaurant recommendation from any cuisine, so feel free to reach out and share your favourites!

  • Badminton
  • Travelling
  • Good food

Tools of the trade

The technologies I work with.

Languages

  • TypeScript
  • JavaScript
  • Java
  • Python
  • Bash/Shell

Frameworks/Libraries

  • React
  • Next.js
  • Node.js
  • Angular
  • MUI
  • Jest
  • JUnit
  • PyTest
  • React Testing Library

Cloud & DevOps

  • GCP
  • AWS
  • Firebase
  • Docker
  • Cloud Run
  • Cloud Functions
  • CI/CD
  • GitHub Actions

APIs & Backend

  • REST APIs
  • OpenAPI/Swagger
  • MongoDB
  • S3
  • SFTP
  • OAuth/API Authentication

Bachelor of Science in Computer Science

University of Calgary

Apr 2019

04 / Experiments

A little room
to tinker.

A place to explore ideas and learn by building. First up: a small browser wallet experiment.

01 / Web3

Browser wallet explorer

A read-only look at connecting a wallet, handling network changes, and displaying an ETH balance.

05 / Say hello

Let's build
something useful.

Have a project in mind, an opportunity to share, or a great food recommendation? I'd love to hear from you.

1-587-889-3338
LinkedInGitHubResume

Calgary, Alberta / Canada