About
From the factory floor to full stack
I'm John Michael Lagumbay, a full-stack web developer based in Mississauga, Ontario, with 18 years of process and quality work behind me.

My story
I didn't start out writing code. For 15 years at SYKES in the Philippines, I worked as a process engineer, finding where things went wrong and fixing them for good. Then I moved to California, first as a quality analyst at DigitalStorm and then as a process engineering supervisor at Tesla, where I coached a team of technicians on safety, quality and targets.
All those years taught me one thing: people get frustrated when something is harder than it needs to be. Now I fix that on the web. I retrained as a full-stack developer, with a certificate from Uplift Code Camp and a Computer Programming diploma from Sheridan College, and I build websites and web apps.
Today I build websites and custom web apps for small businesses and founders, working remotely with clients across Canada and beyond. I also build my own products, like NestWillow. I bring the same habits I learned on the production line to every project: a clear plan, checks at every step, and no loose ends.
Career journey
Tesla · Fremont, CA
Supervisor, Process Engineering (Aug 2020 – Jun 2023)
- Directed cross-functional teams to resolve manufacturing defects, improving powertrain yields by 12%.
- Coached and performance-managed up to 24 process technicians across safety, quality, and KPI targets.
- Designed automated dashboards (Excel, SharePoint, PowerApps) delivering real-time visibility to 50+ stakeholders.
DigitalStorm · Gilroy, CA
Quality Analyst (Mar 2020 – Aug 2020)
- Performed end-to-end QC on 20+ custom PC builds daily — BIOS configuration, OS installs, and driver testing.
- Verified BIOS settings and hardware driver configurations for 30+ builds daily with zero specification deviations.
- Achieved 98% quality standards and 95% customer satisfaction on every build.
SYKES Asia · Makati, Philippines
Process Engineer (Jun 2004 – Jul 2019, 15 years)
- Applied Six Sigma DMAIC methodology and root cause analysis to drive quality improvements across APAC operations.
- Led SOX/ISO audit readiness through 40+ process audits aligned with company standards of excellence.
- Built Power BI, PowerApps, Excel, and SharePoint dashboards that cut stakeholder decision-making time by 30%.
Education
- Diploma, Computer Programming, Sheridan College (2026)
- Certificate, Full Stack Web Development, Uplift Code Camp (2024)
- Degree, Major in Business Management, P.S.B.A. - QC (2004)
Tools I work with
- Languages
- JavaScriptTypeScriptJavaPythonC#SQLHTML5CSS3
- Frontend
- ReactTailwind CSSTanStack RouterTanStack QueryBootstrapThymeleaf
- Backend
- Node.jsExpressSpring BootFlaskREST APIsSupabaseStripe
- Data & ML
- scikit-learnTensorFlow/KeraspandasNumPy
- Databases
- MongoDBPostgreSQLH2Entity Framework
- Tools
- Git/GitHubDockerViteRenderCloudflareMaven/GradleIntelliJ IDEAVisual Studio
Hiring?
I'm open to full-stack developer roles where my process and quality background is a plus. My resume has the full details.