Çağatay ALKANDevelopment Team Lead
Development Team Lead at preunec GmbH, delivering production systems for EU-funded (Erasmus+) and commercial projects. Building multilingual web platforms, REST APIs, and mobile apps end to end with 90%+ automated test coverage.
Featured Projects
A collection of projects showcasing my expertise in full-stack development, mobile apps, and machine learning.
NORN
Linear-inspired project management platform for EU project teams with multi-workspace support, server-authoritative permissions, LLM-powered summaries (Groq), GitHub activity insights, and an animated GSAP + Three.js landing page.
Pomodoro Productivity Platform
Multi-repository rebuild of a Flutter prototype into an Expo SDK 55 mobile client, a Fastify/TypeScript core API, and a FastAPI ML service — with strict TypeScript, structured logging, and Spotify integration for personalized focus sessions.
SyncBranch
Machine-learning-powered platform analyzing Spotify listening habits to generate personalized music profiles and match users with similar tastes. Improved data retrieval speed by 30% with 95%+ API uptime.
D4B
Python platform for managing municipal complaints with real-time job tracking and status workflows, built for the Municipality of Dörtyol.
MediaPipe Hand Tracking
Real-time hand tracking system in Python with detection accuracy above 90%, broadcasting live gesture data to connected clients at under 150 ms latency over WebSockets.
ASYS — Sales Analytics
Sales management platform analyzing daily data for 1,500+ products; automated analytics and reporting, cutting manual reporting time by 40% while handling 10,000+ daily transactions.
Skills & Technologies
Technical expertise built through years of hands-on experience.
Proficiency Levels
Tools I Use
Focus Areas
Experience & Education
Experience
Development Team Lead
preunec GmbH — Erasmus+ EU Projects (Berlin, Remote)
05/2026 - Present
Promoted from intern to team lead within nine months. Leading the development team, coordinating multi-developer backlogs and reviewing code across web, mobile, and backend repositories.
Software Engineer
preunec GmbH — Erasmus+ EU Projects (Berlin, Remote)
12/2025 - 05/2026
Architected the SmartFarming platform: Next.js web app, feature-flagged Flask REST APIs, PostgreSQL and Redis, Nginx gateway, deployed with Docker Compose. Delivered two multilingual Erasmus+ websites with custom admin CMS.
Software Engineer Intern
preunec GmbH — Erasmus+ EU Projects (Berlin, Remote)
09/2025 - 12/2025
Hardened REST APIs with JWT auth, Redis-backed token revocation, Alembic migrations, and GitHub Actions CI/CD. Enforced 90%+ test coverage with Vitest and Playwright.
Software Engineer Intern
Dörtyol Belediyesi (Municipality of Dörtyol)
05/2025 - 09/2025
Developed D4B, a Python platform for managing municipal complaints with real-time job tracking and status workflows.
Community Core Member
Fırat Blockchain
04/2024 - 10/2025
Contributed to community operations through social media management and visual design.
Freelance Software Engineer
AISOFT
01/2024 - 04/2024
Engineered a real-time object detection and analytics system with Python, YOLO, and OpenCV, reducing factory inefficiencies by ~12% and boosting operational efficiency by ~30%.
Education
Bachelor of Science in Software Engineering
Fırat University
09/2022 - 09/2026 (expected)
Languages
Key Achievements
Measurable results and milestones from my professional journey.
Intern to Team Lead in 9 Months
Promoted from intern to Development Team Lead at preunec GmbH, now leading multi-developer backlogs and code review across web, mobile, and backend repositories.
EU-Funded Platforms Shipped
Architected and operate the SmartFarming platform and delivered two multilingual (EN, DE, TR, IT) Erasmus+ dissemination websites with custom admin CMS, audit logs, and rollback.
90%+ Test Coverage Enforced
Established automated testing standards with Vitest for unit and integration tests and Playwright for end-to-end tests across production codebases.
Hardened Production APIs
Implemented JWT auth, Redis-backed token revocation, Alembic migrations, API versioning, connection pooling, and CI/CD pipelines with GitHub Actions.
30% Operational Efficiency Gain
Built real-time object detection and worker movement analysis with YOLO and OpenCV, cutting factory inefficiencies by ~12% and speeding up decisions by 18%.
Open Source Contribution
Published a Dart/Flutter mDNS package for zero-configuration LAN discovery of REST APIs, used in production mobile clients.
Let's build something great
Open to freelance work, collaborations, and impactful projects. Let's create something amazing together.