I design, build and ship web platforms, mobile apps and AI integrations — solo, from database to App Store. And I talk to your executives, marketers, product managers and designers in their language, not mine.
SHEET 02 / 09Who I work withTheir language → mine → what they get
Other developers write code. I speak business.
Most of my working day isn’t spent with developers. It’s spent with the people who own the problem — and every one of them measures success differently. I learned their language so nothing gets lost in translation.
WhoWhat they care aboutHow I speak with themWhat they get
01Business Decision MakersCares aboutReturn on investment, risk, time to market, total cost.How I speakI turn every technical choice into a cost-and-time trade-off: “Option A ships in six weeks for less; option B costs more now and saves you a hire later.”They getPhased estimates · build-vs-buy calls · a plain-English risk list
02Business StakeholdersCares aboutVisibility, priorities, knowing nothing will break on launch day.How I speakProgress is something you can click, not a status percentage. Weekly demos, a short written update, and a clear “what’s next.”They getWeekly demos · status notes · launch checklists
03Marketing TeamsCares aboutCampaign dates, SEO, conversion, being able to change a page without a ticket.How I speakI talk funnels, landing pages and search intent — then hand over tools the team can run themselves, wired to analytics from day one.They getLanding pages · SEO & structured data · editable CMS · tracking
04Product ManagersCares aboutScope, acceptance criteria, roadmap, trade-offs.How I speakUser stories in, specs and edge cases back. I push back early when something is expensive, and offer the cheaper version that still hits the goal.They getSpecs · data models · feature flags · release plans
05Graphic DesignersCares aboutFidelity to the design, brand consistency, motion that feels right.How I speakSpacing, type scale, easing curves. I build what was drawn — down to the pixel — and bring motion ideas back to the designer instead of improvising.They getPixel-true builds · design tokens · motion prototypes
I translate business into software — and software back into business.
SHEET 03 / 09Selected workDesigned · built · deployed solo
Five systems. One developer.
Payments, real-time kitchens, map search over 100,000 listings, a general ledger that replaced QuickBooks, and hardware licensing nobody had documented. Each one designed, built and shipped by me.
SHEET 06 / 09Experience10+ years · enterprise and startup
Ten years of shipping.
2018 — Present
Mircom Group of Companies — Software Developer — Center of Excellence
Led about 90% of assigned projects end to end — architecture, database design, development, deployment and maintenance — working with Product Management, QA, Marketing, Training and RMA.
Websites, platforms and apps for businesses across Canada — the full lifecycle, leading a team of six designers and developers when the work calls for it.
Toronto, ON
2016 — 2018
GNK Holdings — System Analyst
ASP.NET MVC eCommerce with Authorize.NET, a barcode-scanner price lookup app, and a giftable coupon system redeemed by barcode in store.
Vaughan, ON
2012
LG Electronics — QA Intern
Navigation R&D for Hyundai Genesis. Tested and documented 10,000+ user scenarios.
Seoul, KR
✓Microsoft Certified Professional (E474-2195)
✓Microsoft Software Development Fundamentals (E474-2196)
✓BSc Computer Science, York University
SHEET 07 / 09More work37 websites & apps
And 30+ more, live.
Websites and apps for restaurants, clinics, realtors, law firms, salons and retailers across the GTA — plus concept sites that push motion and interaction. Designed and developed by me through Webonology.
Jin Oh is a full-stack developer based in Toronto, Ontario, with 10+ years of professional experience. Jin is a Software Developer at Mircom Group of Companies (since 2018), a Microsoft Certified Professional, and a York University graduate (BSc, Computer Science).
Q02
What has Jin Oh built solo?
Five production platforms, each designed, developed and deployed solo: Eatro (restaurant SaaS with Stripe Connect and an Android POS app), Velvet Studio (salon CRM and booking platform), Reoca (real-estate platform with 100,000+ listings and apps on the App Store and Google Play), and two generations of an order, logistics and accounting system for a wholesale distributor (under NDA).
Q03
What technologies does Jin Oh use?
Next.js, React, TypeScript, React Native, Flutter, Supabase (PostgreSQL, row-level security, Edge Functions), Firebase, .NET/C#, PHP and WordPress, MySQL and MS-SQL, Stripe Connect, Twilio, Plaid, Clover, Google Maps and the Gemini API. Jin deploys to Vercel, AWS EC2, Hostinger, the Apple App Store and Google Play.
Q04
Can Jin Oh work with non-technical teams?
Yes — it is the main differentiator. Jin works directly with business decision makers, stakeholders, marketing teams, product managers and graphic designers, translating business goals into software and technical trade-offs back into cost, time and risk.
Q05
Does Jin Oh build mobile apps?
Yes. Jin has published Flutter apps to the Apple App Store and Google Play (Reoca) and built React Native / Expo apps, including Eatro Manager, an Android tablet app that receives orders in real time and prints kitchen tickets on thermal printers.
Q06
Does Jin Oh have experience with AI integration?
Yes. Jin has integrated Google Gemini for property analysis, natural-language search and multilingual chatbots, and built an internal AI task-tracking platform at Mircom using Open WebUI that generates executive summaries and SR&ED tax-credit reports.
Q07
Is Jin Oh available for work?
Jin is open to full-time roles and selected projects. The fastest way to reach Jin is by email at jinoh@jinoh.co.
SHEET 09 / 09ContactReplies within a day
Let’s build something.
Hiring for a full-stack role, or need someone who can take a product from idea to launch and talk to everyone in between? I read every email.
