Sayvai Tosu

• Created MVP web app with React.js, TypeScript, and React Hook Forms for financial partners. • Empowered users to upload extensive datasets, configure custom rules via dynamic API-driven forms, and visualise data efficiently with performant virtualised lists. • Translated Figma designs into reusable atomic UI components in alignment with the project's design system through close collaboration with the UX team.

• Developed and maintained a white-label ticketing SaaS product in React and TypeScript, enabling TickX clients to sell timed and seated event tickets on their domains. • Built reusable abstract React components integrated with Storybook, into a private NPM UI library for optimal streamlined development. • Integrated REST APIs within a Node.js web application using Nest.js. • Managed A/B tests on the frontend, enhancing user experience by utilising the Amplitude SDK.

• Developed an AI-driven Symptom Checker medical tool embedded in Babylon Health apps, utilising React and TypeScript. • Enabled users to input symptoms via dynamically generated questions from a backend health graph model. • Generated personalised summary reports of potential medical conditions with actionable recommendations. • Presented fortnightly sprint demonstrations of features and bug fixes to stakeholders.

• Developed and maintained internal CMS web app for Sky programme content editors, facilitating curation of NOW OTT media service content that is streamed to millions of customers. • Utilised React.js, TypeScript, Redux, and Reselect in a hybrid setup with migration away from AngularJS. • Committed to latest ES6+ standards and routine unit and E2E test writing.

• Worked on multiple feature projects as to deliver a redesign of the UI and UX experience across the whole of the Barclays intranet platform. • The work involves a dynamic collaboration with the UI / UX team in an agile environment, refining requirements by iterating over working HTML / AngularJS prototypes, before implementing the agreed UI, using AngularJS, HTML, and CSS as the predominant technology stack.

• Delivered a web application named Text-To-Speech, using AngularJS. The app integrates with the IBM Watson AI platform to ensure accurate pronunciation of saved words. • Also worked on another Watson web app which mines vast amounts of external organisational data into a friendly usable UI through data-visualisation charts, using c3.js.

• Created new web pages on an ad-hoc basis in collaboration with campaign team to produce rich user interfaces as per advertising / marketing campaign, with the intention to increase interactions with the public. • Developed and maintained web presence, web services, and mobile applications across multiple platforms with a strong focus on user experience. • Successfully redeveloped an online crime-reporting application as the de facto lead frontend developer.