Hassan Baig
Verified Expert in Engineering
React and Full-stack Developer
Lahore, Punjab, Pakistan
Toptal member since August 4, 2022
Hassan is a full-stack developer (MERN) who has worked with startup founders and million-dollar companies in the finance, real estate, and health sectors. He has built SaaS web applications from scratch, jumped into established codebases to debug, developed ERPs for employee management and payroll, completed full migrations and complex integrations, and designed browser automation. Hassan enjoys contributing to long-term projects, optimizing performance, and implementing best coding practices.
Portfolio
Experience
- React - 5 years
- Node.js - 5 years
- JavaScript - 5 years
- TypeScript - 5 years
- SQL - 4 years
- Amazon Web Services (AWS) - 4 years
- MongoDB - 3 years
- React Native - 2 years
Availability
Preferred Environment
Slack, Jira, ClickUp, Visual Studio Code (VS Code), GitHub, Amazon Web Services (AWS), Google Cloud, Linux
The most amazing...
...project I've developed is a healthcare mobile application for patients and a web portal for doctors and clinics with 15+ modules.
Work Experience
Technical Team Lead | Full-stack Developer
SprintX
- Developed and maintained an in-house ERP for internal use cases such as employee management, payroll, and attendance, which completely removed manual payroll creation work.
- Developed browser automation via Puppeteer and Playwright to scrape Google and Facebook ads for a SaaS.
- Handled client meetings for several projects. Gathered requirements and discussed features and sprint planning.
- Collaborated with project managers, SQAs, and a team of developers to work on different projects for SprintX clients.
Technical Team Lead | Full-stack Developer
BioMark
- Migrated Biomark's web application (doctor's portal) from Angular to React and the mobile application stack from Ionic and Angular to React Native.
- Integrated third-party services such as Jumio, Stripe, Billplz, Apple login, Google maps, Google login, Facebook login, and Firebase.
- Collaborated with the product manager and product owner to study the app before conversion and gather technical requirements.
- Managed and led a development team to revamp and migrate Biomark's technology stack.
Full-stack Developer
Rubix Agency
- Migrated the codebase from Node.js EJS to React, Node.js, and Restful APIs.
- Integrated third-party services such as Google AdWords, Google Analytics, Facebook ads, Slack, and Shopify API.
- Developed an onboarding flow for the Rubix Insights platform, including all third-party integrations.
- Collaborated with the product manager, CTO, data engineers, and UI/UX designer to develop and implement features in Rubix Insights.
Front-end Developer
Owtlab
- Developed an npm package specifically for the Owtlab project and published it on npm.
- Designed and developed several reusable components and pages from the provided Figma designs.
- Collaborated with other developers to build a CRM similar to Hubspot.com.
Full-stack Developer
Zapprate
- Designed and developed the landing page for Zapprate.com.
- Set up auto deployments via GitHub Actions on DigitalOcean.
- Collaborated with the startup founders to develop both administration and user dashboards.
React Developer
Synkbooks
- Designed and developed a landing page for Synkbooks, Collaborated with the founder of Synkbooks and the engineering team.
- Integrated the PayPal payment gateway in Synkbooks with a subscription.
- Migrate the project codebase from Bootstrap version 4 to 3.
Experience
Relome
Business Domain: Real Estate
SynkBooks
https://synkbooks.com/Business Domain: SaaS, Tax Industry
Retail E-commerce Ventures
Zapprate
Education
Bachelor's Degree in Computer Science
Comsats University Islamabad - Lahore, Pakistan
Skills
Libraries/APIs
React, Node.js, Stripe, AWS Amplify, Redux-Saga, WordPress API, PayPal API, Facebook Login, Puppeteer, Playwright
Tools
Redux Thunk, Git, GitHub, GitLab, Amazon Elastic Container Service (ECS), Slack, Jira, NPM, TestFlight
Languages
SQL, JavaScript, TypeScript, HTML5, CSS3, HTML, CSS, SCSS
Frameworks
Express.js, Material UI, Redux, Next.js, React Native, Ant Design, Jest, Bootstrap
Paradigms
Mobile Development
Platforms
Amazon Web Services (AWS), Linux, Firebase, Contentful, Shopify, Visual Studio Code (VS Code), DigitalOcean
Storage
MongoDB, MySQL, Google Cloud, Amazon S3 (AWS S3)
Other
Minimum Viable Product (MVP), Web Development, SaaS, Software Development, Machine Learning, Gatsby, NativeBase, Strapi, Enzyme, Storybook, CI/CD Pipelines, ClickUp, PayPal, Jumio, Google Sign-in
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