Full-Stack Software Engineer | React.js, TypeScript, C# & .NET Core | FinTech, InsurTech & Enterprise Applications
📍 Istanbul, Türkiye • 💼 Software Engineer @ Anadolu Hayat Emeklilik • 🚀 Building at weboneapps.com
Full-Stack Software Engineer with 4+ years of experience designing, developing, and modernizing business-critical applications in insurance and financial services.
- 🔭 Currently architecting IGES-GBBES — an enterprise platform automating group insurance proposal workflows (React.js + TypeScript frontend, C# / .NET Core backend)
- ⚙️ Specialized in front-end architecture, REST APIs, webhook-based async flows, large Excel processing, and legacy modernization
- 🌱 Shipping independent SaaS products with Next.js, Firebase, Polar.sh, and AI APIs under WebOneApps
- 🎯 Open to Full-Stack / Software Engineer, React Developer, .NET Developer roles in Türkiye, Europe, and remote-first teams
- 🧠 Top interests: Local LLMs, Next.js, Software Architecture
Frontend
Backend & Data
Tools & Practices
All my indie products live under weboneapps.com. Highlights:
| App | What it does | Stack | Links |
|---|---|---|---|
| 🌸 Flora | AI-powered flashcard app for language learning. Bulk word upload, memorization flow, subscription billing via Polar.sh | Next.js, Firebase, AI APIs, Polar.sh | Live App |
| 📅 Quical | Snap or paste text → AI converts it to Google Calendar / iCal .ics events |
Next.js, AI APIs, TypeScript | Live App · Repo |
| 🥗 Rephliz | Nutrition tracker by food groups (dairy, grains, fruits, protein, fats) with daily limits | Next.js, Firebase | Live App |
| ⚽ GameDay | Sports fixture & live score tracker — follow matches, add games to Google / Apple Calendar | Next.js, REST APIs | Live App |
| 🏔️ Run to the Hills | Trail running & hiking companion — routes, tracking, task flows | TypeScript, React, Firebase, FluentUI | Live App · Repo |
| 🌍 Depremler | Earthquake statistics for Türkiye by region & time period | TypeScript, Next.js | Live App · Repo |
| 🤖 LogFinder | BYOK AI-chat powered log finder & analyzer | TypeScript | Repo |
| 💲 Financial Prediction | Price prediction with Python & ML (BTC, Netflix, USD, Gold) — ⭐ most-starred repo | Python, ML, Jupyter | Repo |
📱 My mobile & desktop apps are also published on the stores:
Software Engineer — Anadolu Hayat Emeklilik Aug 2023 – Present · Istanbul
- Design & develop business-critical modules for IGES-GBBES (group insurance proposal automation)
- Build scalable front-ends with React.js + TypeScript, back-ends & integrations with C# / .NET Core
- Webhook-based async processing for large Excel files (validation → processing → status tracking); underwriting & annex workflows aligned with regulatory requirements
- Modernize legacy corporate services for maintainability, performance & reliability; architecture, code reviews, testing & production support
Junior Software Engineer — Anadolu Hayat Emeklilik Feb 2022 – Aug 2023
- Internal business apps with JavaScript / Node.js; built company knowledge base; Azure DevOps Boards for sprints & releases
R&D Data Science Intern — Kariyer.net Aug 2021 – Sep 2021
- Python ML models to predict employee tenure (→ publication below); data cleaning, evaluation & final presentation
Flutter Developer Intern — LOGO Yazılım Jul 2021 – Aug 2021
- E-commerce mobile app with Flutter; REST integration, Postman testing, responsive & reusable components
📄 Full details on LinkedIn
- BSc Software Engineering — Istanbul Sabahattin Zaim University
2018 – 2023 - 📝 Publication: Predicting Employee Tenure Using Machine Learning
- 🏅 Microsoft Learn Student Ambassador · Google Developer Student Clubs Lead
- 📜 Certifications: React + Redux, Android 101, Intro to SQL, Google Assistant App
- 🌍 Languages: Turkish (Native), English (Professional Working)
- ✍️ I write on Medium · 🔬 Kaggle: onursercanyilmaz
