Darko Simic
Fullstack Developer
Part of FatCat Coders since:
May 2023
Looking for a developer who delivers quality and efficiency? Darko is a highly skilled full-stack developer with over 3 years of experience handling complex projects. His ability to quickly adapt and learn ensures your project will be completed with precision and speed. Choose Darko for your next project and experience seamless development from start to finish.
Calendly – Web Extension
Client ProjectNovember 2023 - Ongoing
Calendly leads the way in automated meeting scheduling, offering team-based scheduling solutions and integrations with advanced security features.
Contributed to the redesign of the web extension for Chrome, Firefox, Edge, and Outlook, improving user experience and functionality across all platforms.
Migrating state management within the extension from Redux to Zustand, enhancing state handling and overall performance.
Collaborated within a team of 12 professionals, including 8 developers, 2 QA engineers, a project manager, and a product owner, to ensure smooth integration and high-quality delivery.
Main tech stack:
ReactJS, Ruby on Rails, Web Extensions API, Redux, Zustand,
Calendly – Marketing Webpage
Client ProjectOctober 2023 - November 2023
Successfully migrated the entire Calendly marketing site from Gatsby to Next.js, enhancing the site’s performance and scalability.
Played a role in collaborating with the Calendly marketing team, translating their ideas into technical solutions, and ensuring a smooth transition during the migration process.
Worked as part of a small, agile team of 3 developers, contributing to planning, development, and troubleshooting to deliver a seamless experience on the newly transitioned platform.
Main tech stack:
Gatsby, Next.js, Vercel; AWS, TypeScript, React, Contentful
FoxVision - Software Application
Client ProjectMay 2023 - October 2023
Fox Vision is an advertising company specializing in the food industry, specifically tailored for tablet displays to address the advertising needs of food delivery companies.
Developed an application enabling drivers to stream selected advertisements on a tablet, with content management via a mobile app and admin control through a dashboard.
Contributed to the scheduling system for media content, implemented a geofencing system to control content based on location, and developed a streaming system capable of functioning offline.
Worked in a team of 5 people: 3 developers, 1 team lead, and a project manager.
Main tech stack:
ReactJS, Refine.dev, React Native, PostgreSQL, NestJS, NodeJS
FoxVision - Marketing Site
Client ProjectMay 2023 - July 2023
Redesigned the existing FoxVision marketing site, elevating its visual appeal and user experience.
Developed content using Contentful, created custom UI components, and optimized the site's performance and SEO for better visibility and speed.
Collaborated closely within a small, focused team of 4: 2 developers, 1 team lead, and a project manager.
Main tech stack:
ReactJS, Gatsby, Contentful
AEAR - Automating Events
HTEC GroupAugust 2022 - May 2023
The project focused on automating the management of event attendance for company employees.
Designed and developed a comprehensive application aimed at automating event attendance management for company employees. This application streamlined the event registration process, improving accuracy and significantly enhancing overall operational efficiency.
Engaged in collaborative development within a team of 7 professionals, working closely with colleagues to integrate features, troubleshoot issues, and ensure the application met user needs and project goals.
Main tech stack:
ReactJS
Cloud Data Storage App
HTEC GroupMay 2022 - August 2022
Short tenure working on a cloud data storage application focused on managing and handling cloud-based files.
Developed a comprehensive cloud data storage application, which included designing and implementing a client-side file explorer for managing cloud-based files and a robust server-side service for handling file uploads.
Created and integrated Lambda functions to efficiently compress files, optimizing storage and performance.
Worked closely with a team of 10 professionals, contributing to both frontend and backend development to ensure seamless functionality and user experience.
Main tech stack:
ReactJS, .NET, MySQL, AWS Lambda
Zajednica App
StartitFebruary 2022 - May 2022
A platform that links a community of local product enthusiasts and facilitates the exchange of knowledge and experiences.
Developed and maintained the Zajednica web and mobile application, a platform connecting a community of local product enthusiasts and promoting knowledge and experience sharing.
Collaborated effectively within a team of 3, contributing to both frontend and backend development to ensure the platform's functionality and user satisfaction.
Main tech stack:
ReactJS, React Native, WordPress, NodeJS, MySQL
BASc Civil Engineering
2016-2020
English - B2
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