Farah Alhasan
Verified Expert in Engineering
Full-stack Software Engineer and Developer
Istanbul, Turkey
Toptal member since August 11, 2026
Farah is a full-stack software engineer with over 5 years of experience in building web and app platforms for clients, including Collar. She specializes in React, TypeScript, and Node.js for pet technology solutions, where she thrives in fast-paced startup environments. Farah cut page load times by 50% and supported a 200% increase in user traffic while at Collar.
Portfolio
Experience
- JavaScript - 6 years
- TypeScript - 5 years
- Redux - 5 years
- React - 5 years
- Data Structures - 5 years
- React Native - 4 years
- Vitest - 3 years
- Next.js - 2 years
Preferred Environment
Slack
The most amazing...
...platform I've built is a pet management system that achieved a 95% user satisfaction score and scaled to double user traffic.
Work Experience
Full-stack Software Engineer
Collar
- Redesigned the platform architecture with React, TypeScript, Gatsby, Node.js, GraphQL (Apollo), and Stripe to improve performance and scalability, cutting page load times by 50% and supporting a 200% increase in user traffic.
- Developed and released a user-friendly platform with a 95% user satisfaction score that allows pet owners and companies to manage pet products and services.
- Led the development and continuous improvement of web and platforms for managing pet-related products and services.
- Created and deployed an intuitive user interface to improve user experience and guarantee pet owners' and businesses' ease of use.
Experience
Collar
https://www.collar.pet/Education
Bachelor's Degree in Computer Engineering
Istanbul Medeniyet University - Istanbul, Turkey
Certifications
Complete SQL and Databases Bootcamp
Udemy
Complete NodeJS Developer (GraphQL, MongoDB, + more)
Udemy
Complete React Developer (w/ Redux, Hooks, GraphQL)
Udemy
Master the Coding Interview: Data Structures + Algorithms
Udemy
The Complete JavaScript Course : From Zero to Expert!
Udemy
Build Responsive Real-World Websites with HTML and CSS
Udemy
Skills
Libraries/APIs
React, Playwright, REST APIs, Node.js, Stripe, Stripe API
Tools
Vitest, GitHub, Slack
Languages
TypeScript, JavaScript, CSS, HTML, SQL, GraphQL, Java, C++, C, Python
Frameworks
Redux, Next.js, Jest, React Native, Tailwind CSS, Swing
Paradigms
Agile, Object-oriented Programming (OOP)
Industry Expertise
Healthcare
Other
Styled-components, Web App Development, Architecture, Front-end, Software Architecture, Responsive UI, Application State Management, API Integration, User Interface (UI), User Experience (UX), Data Structures, Zustand, Gatsby, Apollo, Data Analysis, Computer Science, Digital Circuit Design, Algorithms, Styling
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