Ciro Alejandro Sira Mogollon Email & Phone Number

My responsibilities as a Full Stack Developer were:✔️ Built responsive web interfaces using modern front-end frameworks like React, Next.js, Astro.js, Svelte.js, Vue.js, and Nuxt, enhancing reader engagement by 25%.✔️ Implemented responsive layouts and optimized designs for multiple devices and screen sizes using CSS3, Sass, Less, Bootstrap, Tailwind, EmotionJs, and Material UI.✔️ Created a design system using Storybook.✔️ Utilized TypeScript for type-safe and… Show more My responsibilities as a Full Stack Developer were:✔️ Built responsive web interfaces using modern front-end frameworks like React, Next.js, Astro.js, Svelte.js, Vue.js, and Nuxt, enhancing reader engagement by 25%.✔️ Implemented responsive layouts and optimized designs for multiple devices and screen sizes using CSS3, Sass, Less, Bootstrap, Tailwind, EmotionJs, and Material UI.✔️ Created a design system using Storybook.✔️ Utilized TypeScript for type-safe and scalable web application development.✔️ Implemented client-side state management using Redux, Recoil, Zustand, Vuex, and Pinia.✔️ Worked on the migration of legacy applications to modern JavaScript frameworks, which resulted in a more maintainable codebase and reduced the cost of future feature developments by 15%.✔️ Implemented automated tests (unit, integration, and end-to-end) with Jest, Vitest, Testing Library and Cypress,, and continuous integration practices, ensuring code quality and reliability.✔️ Performed cross-browser and cross-device testing to ensure consistent functionality across platforms using Chromatic.✔️ Developed scalable backend systems using Node.js, Python, Express, and Django framework, handling high volumes of user data.✔️ Implemented RESTful APIs for seamless integration with front-end systems.✔️ Designed, implemented, and maintained relational (PostgreSQL and MySQL) and non-relational (mongoDB) databases to manage and store application data.✔️ Optimized database queries by introducing indexing and denormalization techniques, resulting in a 30% reduction in response time.✔️ Provided effective troubleshooting and debugging support.✔️ Collaborated with cross-functional teams to design and implement new features.✔️ Documented code and processes to facilitate knowledge sharing within the team. Show less

My responsibilities as a frontend developer were:✔️ Built responsive web interfaces using modern front-end frameworks like React, React Native, and Astro.js, enhancing reader engagement by 25%.✔️ Implemented server-side rendering (SSR) in a web application using Next.js, reducing page load time by 40%.✔️ Collaborated with UX designers to create intuitive and user-friendly interfaces, resulting in a 20% increase in user satisfaction.✔️ Implemented responsive… Show more My responsibilities as a frontend developer were:✔️ Built responsive web interfaces using modern front-end frameworks like React, React Native, and Astro.js, enhancing reader engagement by 25%.✔️ Implemented server-side rendering (SSR) in a web application using Next.js, reducing page load time by 40%.✔️ Collaborated with UX designers to create intuitive and user-friendly interfaces, resulting in a 20% increase in user satisfaction.✔️ Implemented responsive layouts and optimized designs for multiple devices and screen sizes using CSS3, Sass, Less, and Tailwind.✔️ Utilized TypeScript for type-safe and scalable web application development.✔️ Implemented client-side state management using Redux, Recoil, and Zustand.✔️ Collaborated with the back-end team to design and consume RESTful APIs.✔️ Collaborated with the UX team to refine animations and transitions in the app, substantially improving the average session length by 10 minutes, using Three.js, Framer Motion, and Gsap.✔️ Improved website accessibility by adhering to WCAG guidelines and performing accessibility audits.✔️ Improved website performance by implementing code optimizations, code splitting, and lazy loading techniques, resulting in a 30% reduction in load time.✔️ Implemented SEO optimizations resulting in a 20% increase in organic search traffic.✔️ Worked closely with product managers to define requirements and deliver features within tight deadlines. Show less

Barquisimeto, Lara, Venezuela

Barquisimeto, Lara, Venezuela

Industrial Engineer

Fullstack Developer