
M. Yasin Birer
Verified Expert in Engineering
Full-stack Developer
Adana, Turkey
Toptal member since August 6, 2026
Yasin is a senior full-stack developer who loves turning complex ideas into fast, reliable, and scalable products. With nearly 10 years of experience, he has built web, mobile, real-time, and eCommerce systems used by thousands of businesses. Yasin works across Node.js, TypeScript, React, and MongoDB, and enjoys owning the full journey from architecture and development to deployment and scaling.
Portfolio
Experience
- Node.js - 10 years
- MongoDB - 10 years
- Linux - 10 years
- React - 10 years
- Express.js - 10 years
- PHP - 10 years
- JavaScript - 10 years
- Flutter - 7 years
Preferred Environment
Linux, Node.js, React, MongoDB, PostgreSQL, PHP, C#, Flutter, JavaScript, Full-stack Development
The most amazing...
...thing I do is turning complex problems into clean, scalable products that work beautifully in the real world.
Work Experience
Founder & Lead Developer
Workin Software
- Founded and led a software studio, owning projects from discovery and architecture through development, deployment, and long-term support.
- Built a custom Node.js and MongoDB eCommerce platform that currently powers seven online stores with both B2C and B2B workflows.
- Integrated payment gateways, ERP systems, inventory tools, and custom business processes for clients with complex operational needs.
- Delivered 10+ production projects across web, mobile, and back-end development, often taking full technical ownership as a solo developer.
Project Manager & Senior Software Developer
Kodfu
- Designed and set up MongoDB logging infrastructure for the FAST banking project, supporting 100+ gigabytes of daily writes and terabyte-scale weekly backups.
- Took complex software projects from initial architecture and technical planning through development, deployment, and production delivery.
- Led developers through code reviews, pair programming, and hands-on problem-solving, helping the team deliver projects with confidence.
- Bootstrapped new projects, established their technical foundations, and transitioned them to the development team for continued delivery.
Full-Stack Developer & System Administrator
Aicad Business School
- Built and maintained an eCommerce platform and LMS for an education company serving clients across Spain and Latin America.
- Managed production servers, deployments, monitoring, and technical operations while maintaining 99.9% uptime.
- Acted as the sole technical owner, handling everything from front- and back-end development to infrastructure and production support.
- Improved online learning and commerce workflows to support individual customers, businesses, and enterprise training clients.
Native Mobile Application Developer
Nanodems
- Developed native Android and iOS applications for a security camera platform, enabling users to manage devices and watch live video over WebRTC.
- Built custom live-streaming decoders in Java and Swift; the applications remain in production and continue to serve real customers.
- Delivered native Android and iOS applications for a WAPOL field-tracking solution, enabling rapid communication during emergencies.
- Integrated WebRTC, Socket.io, and native components to provide responsive, low-latency video streaming and real-time communication.
Full-stack Developer & AI Project Lead
Wiki Software
- Delivered 300+ corporate websites as part of a fast-moving development team, turning visual designs into responsive production websites.
- Built a centralized CMS with Node.js, Meteor.js, and MongoDB, enabling more than 300 corporate websites to be managed from one admin panel.
- Led the development of Kiwi, an AI-powered sign-language translator designed to convert body movements into text and speech.
- Coordinated the collection of 50,000+ training videos with more than 30 sign-language instructors to support the project’s AI model.
Experience
High-throughput Banking Logging Infrastructure
Retail Stock Tracking & BI Platform
Custom B2B & B2C eCommerce Platform
Education
Master's Degree in Computer Engineering
Çukurova University - Adana, Turkey
Bachelor's Degree in Computer Engineering
Çukurova University - Adana, Turkey
Skills
Libraries/APIs
Node.js, React, WebRTC, Socket.IO, Stripe
Languages
TypeScript, JavaScript, CSS, HTML, PHP, Python, Java, C#
Frameworks
Flutter, Next.js, Express.js
Platforms
WordPress, Linux, Docker, Android
Storage
MongoDB, PostgreSQL, MySQL
Paradigms
UX Design, Mobile Development, Database Design
Other
eCommerce, Full-stack Development, Back-end, Full-stack, Front-end, API Integration, Payment APIs, Back-end Development, APIs, Web Scraping, Data Aggregation, Artificial Intelligence (AI), Large Language Models (LLMs), AI Agents, Leadership, Agentic Coding, Systems Design, Technical Leadership, User Experience (UX), User Interface (UI), Mobile App Development, Web Development, System Architecture
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