Erdem Elvan
Freelance software developer in İzmir. I design and build websites, web platforms, mobile apps and the software that runs factory floors.
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Custom websites
Designed and coded from scratch for each client: fast on a phone, in the languages its customers speak, and easy for the owner to keep up to date.
Factorysoftware.
Loading the 3D line…
Plank
Knots found
Board
Angle
Grade
Yield
Twenty lasers measure every plank; the optimiser picks the cuts that waste the least wood and sends the saw positions to the PLC. It cuts real timber in Türkiye every day.
A simplified version runs in your browser: find the wane, fit the widest board, cut.
Built at Simbiosis Mechatronics · C# .NET · Modbus TCP · React · three.js
More from the floor
Systems I have built or helped build at Simbiosis, for customers named here only by their industry.
Software that runs a business
If it has a screen and people rely on it every day, I can build it: the web side, the phone side and the wiring to the systems you already have.
Web platforms
Customer portals and B2B platforms with roles, two-step sign-in and an audit trail.
ERP integrations
Logo, Mikro, DİA or anything with an API: orders, stock and production flow in without retyping.
Mobile apps
iOS and Android from one React Native codebase, from a calf feeder to a park wallet.
Internal tools
Project hubs, supply schedules and dashboards a team opens every morning.
How we work together
Listen
1 / 4A first call, then a short written brief: what it must do, for whom, and by when.
Design
2 / 4Directions on a design canvas before any code, so you choose with your eyes.
Build
3 / 4Working builds every week that you can open and click, with the plan in one place.
Launch
4 / 4Tested on real phones and real machines, measured for speed, then handed over with a guide.
About me
- Based in
- İzmir, Türkiye
- Building since
- 2021
- Languages
- Turkish, English, German A1, Spanish A1
I’m Erdem, a software developer in İzmir. I studied business, then took a master’s in software engineering, and now I work between two worlds: websites and apps for people, and the software that runs machines. Since 2024 I’ve built industrial systems at Simbiosis Mechatronics; since 2021 I’ve taken freelance work. Both get the same care: fast, accessible and built to be used every day.
Read the full CVWork
- Simbiosis MechatronicsSoftware developer2024–
- FreelanceWebsites, platforms, apps2021–
- TEKPAN ElectricWeb developer2021
Education
- İzmir Katip Çelebi UniversityMSc Software Engineering, GPA 3.852020–22
- MIT OpenCourseWareIntro to CS and Python2020
- Ege UniversityBA Business Administration2014–19
Toolkit
TypeScript · React · Next.js · Astro · Vue.js · React Native / Expo · three.js · GSAP · C# / .NET · Node.js · Python · PostgreSQL · Supabase · Cloudflare · Docker · Modbus · OPC UA · EtherNet/IP · Siemens S7 · Electron
Everything so far (29)
| Project | What | Built with | Year |
|---|---|---|---|
| Websites | |||
| Nekson | Sensor company, 11 live demos | Next.js, GSAP | 2026 |
| Arpol | Tank maker, 3D product hero | Astro, three.js | 2026 |
| Hülya Kazi | Poet’s book with her own panel | Astro, Cloudflare D1 | 2026 |
| I Need Global | Foreign trade, block CMS | Next.js, Sveltia | 2026 |
| MEM Global | Trading company, Dubai | Astro, Sveltia | 2026 |
| M&U Law Office | Accessibility and SEO, design kept | Next.js | 2026 |
| Uçarlar İnşaat | Villa builder, procedural 3D villa | Astro, three.js | 2026 |
| Simbiosis | Company site in four languages | Next.js, three.js | 2025 |
| Palaper Pizzeria | Restaurant | Next.js, Tailwind | |
| Music player | Personal project | React | 2023 |
| Platforms and apps | |||
| Bitane3D | Members-only 3D model library and idle game | React, Hono, D1 | 2026 |
| Machine-builder portal | Website, service portal and CMS (NDA) | Next.js, Postgres RLS | 2026 |
| Cashless park platform | Card, app, kiosks, POS, ledger (NDA) | .NET 10, Expo | 2026 |
| Simbiosis Marketing hub | Customer platforms with timed access | React, Supabase | 2026 |
| Jewellery RFID | Stock and door alarm, live gold price | .NET 10, PostgreSQL | 2026 |
| Grocery price tracker | Phone and web app | Expo, Supabase | 2026 |
| E-commerce store and admin | Stripe payments, auth, admin | Next.js, Prisma | 2023 |
| Factory and industrial | |||
| Plank scanner | Edging optimiser, in production | C# .NET, three.js | 2026 |
| Profile-sensor scanner | 1 mm resolution, verified in simulation | .NET, wenglor SDK | 2026 |
| Log scanner 3D | 800 sensors build a live log mesh | Electron, three.js | 2026 |
| APEX SCADA | SCADA / HMI product | Node.js, TimescaleDB | 2026 |
| Smart calf feeding | RFID, load cells, phone app | OPC UA, React Native | 2025 |
| Leak-test cell HMI | Robots, 3D sensor, helium sniffers | WinUI 3, .NET 8 | 2026 |
| Brazing 3D vision | Joint finder for robots (R&D) | C++20, .NET 10 | 2026 |
| BrazeCam | Joint temperature from a camera | .NET 10, SLMP | 2026 |
| Roast studio | Coffee-roaster control and analytics | Python, Qt | 2026 |
| Tools | |||
| Invoice robot | Files every Logo İşbaşı invoice | Electron, Logo API | 2026 |
| Film studio | 20+ product films rendered from code | Node.js, ffmpeg | 2026 |
| Drive card reader | Decodes servo-drive parameter cards | Python, PC/SC | 2026 |
