Brian Sun

Staff Solutions Engineer — Cloud & AI at Microsoft

I’m currently a Staff Solutions Engineer with 6+ years of experience turning complex AI, cloud, and API challenges into scalable solutions and measurable business outcomes.

At Microsoft, I lead initiatives across enterprise Azure, Copilot and GitHub products, supporting a $40M+ portfolio and serving more than 5M+ monthly users. My work has helped reduce client time-to-value by 40% and accelerate production launches by 35%.

Previously, I led Solutions Engineering at VoPay, contributing to $5M in year-over-year growth, and co-founded an ecommerce analytics platform that scaled beyond $1M in ARR before being acquired.

6+years experience

$40M+portfolio supported

5M+monthly users

99.9%uptime sustained

Experience

Staff Solution Engineer — Cloud and AI

Microsoft · Vancouver, BC

Feb 2024 — Present

Own end-to-end delivery for Azure, Copilot, Foundry, Fabric & GitHub products, translating complex enterprise workflows into scoped solutions, clear architecture, and rollout plans from discovery through production adoption
Personally write and review production-grade code for full-stack AI prototypes, microservices, evaluation harness and integrations; debug agent and workflow failures and run successful pilots for production, shortening sales cycles by 27% and increasing deal closure rates by 33%
Own production quality through tracing, evals, monitoring, production metrics and failure-mode analysis; balance reliability, safety, latency and cost to accelerate launches by 35% and sustain 99.9% uptime across environments
Partner across sales, engineering, product, security and customer success teams to communicate technical tradeoffs, delivery blockers and guide production rollouts; Team lead for 10 solution engineers, contributing to SMB and Enterprise deal growth of 24% and 98% positive customer feedback
Codify field problems into reusable architecture, playbooks, and workshops that reduce customer time-to-value by 40%; ranked in the top 10% across a $40M+ portfolio and exceeded personal KPIs by 180%

Lead Solutions Engineer — Payments and Cloud

VoPay · Vancouver, BC

Feb 2023 — Feb 2024

Led discovery with 70+ monthly prospects, translating payment challenges into prototypes and tailored workflows; increased conversion rate by 60% and reduced sales cycles from 120 to 75 days.
Built Python and API integration workflows that automated troubleshooting; resolved technical objections and improved implementation, halving post-sales implementation time and reducing support tickets by 40%.
Turned recurring customer needs into reusable Virtual Labs and Interactive Sandbox Environments used by 400+ prospects, accelerating time-to-value by 30% and contributing to 30% pipeline growth.
Promoted to Lead in 8 months after driving $5M YoY growth and exceeding KPIs by 220%; Led 4 Solutions Engineers across three verticals and signed enterprise partnerships with Sage, WeBull and Mastercard.

Technical Co-Founder & CTO

Transcend · Vancouver, BC

Mar 2020 — Feb 2023

Co-founded and built a full-stack product and analytics platform for 200+ ecommerce clients, owning product strategy, system architecture and production delivery from zero to scale.
Developed product recommendation, ad-spend optimization, product-research solutions that increased revenue 85%, deal sizes 60%, retention 50% and engagement 300%.
Led and mentored offshore engineering team while scaling ARR past $1M at 170% YoY growth; the company and platform was ultimately acquired in a sale to a leading competitor in the ecommerce space.

Internship

Research Assistant

At Human-Computer Interaction (HCI) Lab on personalized explainable AI

University of British Columbia · Vancouver, BC

Jan 2017 — Jan 2019

Education & Skills

BSc in Computer Science

University of British Columbia · Minor in Neuroscience

2015 — 2020

3.9 / 4.0 GPA · Five-time Dean's Honour List

Agentic AI & Generative AI

AI Engineering

Cloud, Security & Operations

Forward-Deployed Engineering

Leadership & Volunteering

Chief Petty Officer Cadet, 1st Class

Cadets Canada · RCSCC Bicknell

2010 — 2015

Led training and welfare for a company of about 100 cadets. Managed platoon sergeants and staff at a regional military training base for cadets.
Promoted from Ordinary Cadet (OC) to Chief Petty Officer Cadet, 1st Class (CPO1), the highest standard cadet rank.
Directed base-wide sports events for more than 1,000 cadets. Planned tournaments, refereed competitions, and coached cadets to lead, assess, and mentor others.

President

World Vision UBC · Vancouver, BC

2016 — 2020

Advanced through four leadership roles: Events Coordinator, Events Director, VP Events, and President.
Led a team of 30 events and marketing coordinators as Events Director and VP Events.
Partnered with World Vision’s main organization as its UBC branch to plan 15+ large-scale charity events throughout the school year, collectively fundraising over $3M.
Expanded the team and scale of events as President, growing charity impact from $1.5M to over $3M.
Earned Excellence Awards and Best UBC Club recognition in 2019 for the team’s accomplishments.

Staff Planner & Coordinator

Richmond Centre for Disability · Richmond, BC

2016

Led a team of 22 staff in planning the summer camp program for children with disabilities.
Negotiated sponsorships and organized large-scale activities on a weekly basis for the summer camp.
Adapted program activities to each participant’s disability-related needs, ensuring everyone felt included, confident, and safe in all activities.

1,500+ total volunteer hours across Richmond Cares, Richmond Centre for Disability, Vancouver General Hospital, and Richmond Hospital.

2015 — 2020

Projects

Product case study

Transcend Commerce Intelligence Platform

A Python product and analytics platform for 200+ ecommerce teams, combining recommendation systems, product research, and ad-spend optimization. Scaled beyond $2M ARR before acquisition.

Open source · JavaScript

Ad Reporting for Google & Meta

An asynchronous Google Apps Script workflow that exports campaign data from Meta and Google Ads into Sheets for recurring dashboard reporting.

Open source · Python

Google & Meta Ad Research Toolkit

A research pipeline built on the Facebook Ad Library API that cleans public political-ad data, including regional and demographic distributions, into analysis-ready CSV files.

Open source · Automation

Oberlo Fulfilment Bot

A legacy browser-automation project for moving ecommerce orders through purchase and tracking workflows—built as the capstone for Harvard CS50.

Coursework · Systems

Harvard CS50 Portfolio

A collection of systems and web projects spanning C, Python, Flask, SQL, JavaScript, HTML, and CSS, including the Oberlo automation capstone.

Explore all repositories

Writing

Build notes from shipped side projects—focused on the architecture, tradeoffs, and edges that matter once an idea meets a real workflow.

Technical note · APIs

Exporting Google & Meta Ads Data Without Timing Out

The architecture behind an asynchronous Apps Script pipeline for pulling ad data into a durable reporting workflow.

Technical note · Data engineering

A Research Workflow for the Facebook Ad Library

Using the official API, structured queries, and a small cleaning pipeline to turn public political-ad records into useful datasets.

Build note · Automation

Automating an Ecommerce Fulfilment Queue

A practical look at browser automation, queue handling, and the edges of a legacy dropshipping workflow.

Let's connect

I'm always happy to connect with other like-minded professionals across AI, technology, and entrepreneurship. Open to exploring other opportunities in the AI space, startups or big tech.

Feel free to send me a message.