Jonathan – Svelte.js, Typescript, JavaScript
Jonathan is a strong frontend engineer with nearly 14 years of experience, specializing in Svelte, TypeScript, and Vue.js. He has led frontend development for no-/low-code platforms and communication tools, demonstrating practical skills in component libraries, theming, and user interface design. He is best suited for roles implementing and maintaining significant frontend features within established architectures.
14 years of commercial experience in
Main technologies
Additional skills
Direct hire
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Let’s get started today!Experience Highlights
Lead Frontend Engineer
A customizable communication platform for governments, businesses, and developers. It helps teams quickly build and manage mobile applications for healthcare, education, public safety, and logistics, with a strong focus on real-time communication, data collection, and system integration.
- Designed and built a robust, reusable component library used across the entire platform;
- Implemented every page in close alignment with detailed Figma designs;
- Developed intuitive interfaces and reusable components that enabled low-code developers to build and customize applications, reducing development time and complexity;
- Collaborated with the marketing team to create user-friendly interfaces that improved engagement and retention;
- Delivered a reliable, scalable frontend that allowed the commercial team to demonstrate the product to prospective clients.
Senior Frontend Engineer
A customer communication tool that unifies chats from multiple channels, including Instagram, Facebook, WhatsApp, and email, into a single platform for efficient customer communication. The product helps clients manage conversations in one place, while the frontend work focused on new features, user experience improvements, and keeping the chat system fast and reliable.
- Developed and implemented new features and processes;
- Conducted impact analyses to assess the effectiveness of new functionality;
- Improved the user experience with a more intuitive, streamlined interface;
- Maintained and optimized the chat system for better performance and efficiency;
- Proactively identified and resolved issues to ensure uninterrupted communication.
Senior Fullstack Engineer
A retail solution for supermarkets with two products: one helps them manage and promote product offerings, improving inventory management and product visibility, and the other is a course platform for delivering training to customers across different topics.
- Built a tool that enabled supermarkets to manage inventory and promote products to customers;
- Developed a course platform for supermarkets to deliver tailored training to their customers;
- Handled both frontend and backend implementation across the two products.
Middle Fullstack Engineer
An internal social network designed to encourage employee interaction and support mood management across the organization, along with an automated form generator that dynamically rendered screens from backend data and retrieved information without manual screen building.
- Built an internal social network to encourage employee interaction and mood tracking;
- Developed an automated form generator that dynamically rendered screens from backend data;
- Identified key areas for improvement and enhanced functionality, usability, and overall user experience.