Darko is a vetted full-stack developer with over 3 years of experience in challenging projects. With his extensive skill set, ability to quickly adapt, and fast learning, Darko is a vetted full-stack developer with over 3 years of experience in challenging projects. With his extensive skill set, ability to quickly adapt, and fast learning,
Ljig, Serbia
CET - GMT +1, GMT +2

Darko Simic

Fullstack Developer

3+ years of experience
Darko's avatar is a cool-looking gray cat wearing a hoodie. The hoodie suggests a casual and relaxed personality, perhaps indicating that Darko enjoys comfort and simplicity.

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.

JavaScriptVanilla JSReactReact NativeNode.jsNext.jsTypeScriptGatsbyJamstackContentfulStrapiSQLMySQLPostgreSQLMongoDBGPT-4DockerAmazon Web Services (AWS)StripeJSONGoCMSCI/CDMachine LearningPythonData VisualizationSoftwareFull-stackStartupGoogle Cloud PlatformFirebaseLuaMobile AppFull-stackFront-endBack-end

FoxVision

Marketing Website

May 2023 - July 2023

Developed the FoxVision marketing site, developed UI components, and optimized performance using Contentful.

  • Redesigned the existing FoxVision marketing site.

  • Developed content in Contentful, created UI components and improved the site's performance and SEO.

  • Collaborated in a team of 4 people: 2 developers, 1 team lead, and a project manager.

Main tech stack:

React, Gatsby, Contentful

FoxVision

System

May 2023 - October 2023

Developed a mobile and tablet-based advertisement streaming app with geofencing and offline capabilities, alongside a mobile and admin app for content management.

  • 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:

React, Refine.dev, React Native, PostgreSQL, Nest.js

Calendly

Marketing Site

October 2023 - November 2023

Migrated Calendly’s marketing site from Gatsby to Next.js for improved scalability and performance.

  • Migrated the Calendly marketing site from Gatsby to Next.js.

  • Worked in a team of 3 developers.

Main tech stack:

Next.js, Contentful

Calendly

Web Extension

November 2023 - Current

Redesigned Calendly’s browser extensions and transitioned state management from Redux to Zustand for improved efficiency.

  • Redesigned the web extension for Chrome, Firefox, Edge, and Outlook.

  • Migrated state management from Redux to Zustand within the extension.

  • Working in a team of 12 people: 8 developers, 2 QA engineers, a project manager, and a product owner.

Main tech stack:

React, Ruby on Rails, Web Extensions API