At Upmarket, I have been instrumental in developing responsive, multilingual applications using the Next.js framework, CMS platforms like Storyblok and Prismic.io, adhering to SEO and performance best practices. Collaborating closely with backend developers, I ensure our projects deliver optimal results. GraphQL was used across all projects for efficient data querying. Key projects include: - About Upmarket Website (Storyblok Managed): Provides comprehensive, SEO-optimized company and product information, allowing users to access details and register as hosts. - Online Check-In App: Enables guests to check in, enter information, set preferences, and view house rules and property instructions. - Communications Hub Platform: Facilitates communication between guests and hosts, allowing hosts to monitor conversations between guests and the AI, with options to enable, disable, or suspend AI interactions. Features include search and filter options, custom Sendbird UI, and support for multimedia messaging (images, audio, video, files, and mini-map locations). The platform integrates booking metadata, allows hosts to provide feedback on AI responses via Slack, and includes automatic translation for inbound/outbound messages. - Guest App: Showcases property services and booking details, enables secure transactions through Stripe.js, and is installable as a PWA. This app offers a sleek, user-friendly experience, allowing guests to explore and purchase property services with ease.Additionally, I have developed RESTful APIs with Next.js, utilizing Server-Side Rendering (SSR) and Static Site Generation (SSG) to optimize performance and SEO.My role at Upmarket has strengthened my expertise in creating high-performance, user-focused web applications tailored to diverse client needs.

- Developed and deployed a blockchain smart contract using Solidity- Developed a web application using React JS and made it mobile friendly- Developed a mobile application using React Native

In this company I developed:- A web app using React JS- 3 social media mobile apps using Flutter and Firebase framework- A delivery services mobile app using Flutter and Firebase framework- A smart contract for a cryptocurrency coin using solidityAlso:- I fixed and edited a web and mobile apps project.- Integrated payment with cryptocurrency in mobile apps

Developed the front-end for 3 web apps using React JS:1. A web application that helps in checking all bank transactions statements (client info table, transaction info table, circular diagram showing the number of transactions on each channel, world map showing the number of transactions per each country)2. A recruitement web app where candidates can apply for for job positions and HR employees can check and review the candidates data (Personal info, languages, education, experience, CV,...) , they can also categorize them ( Accepted, Pending, Rejected ), add notes to their profiles and manage them (add, edit, delete).3. A web app helping the finance employees to find, analyze and import full data and statistics with diagrams, tables and filters for the suppliers, banks and the deals between them.

- Supporting customers using Google Suite products- Transferring customers data from Outlook to G Suite- Developing email signatures for customers using HTML

Full stack development using Java Spring Framework

- Developed an automated cybersecurity system for the servers- Developed web app pages using Django framework