Amar is available for hire
Hire AmarAmar Jasarevic
Verified Expert in Engineering
Software Engineer and Front-end Developer
Sarajevo, Federation of Bosnia and Herzegovina, Bosnia and Herzegovina
Toptal member since February 11, 2022
Bio
Amar is an experienced software engineer with a demonstrated history of working in the IT services industry. Skilled in various technologies, he has recently focused on React. Amar is a strong engineering professional with a master's degree in electrical engineering focused on program computing and informatics.
Portfolio
Freelance Contractor
TypeScript, React, Web UX, Figma
Gartner - Peer Insights
React, React Native, Web UX
MTB Acquisition, LLC
React, JavaScript, TypeScript, Bootstrap, Responsive Layout...
Experience
- Agile Software Development - 11 years
- JavaScript - 11 years
- CSS - 10 years
- HTML - 10 years
- Web UX - 10 years
- React - 9 years
- GitHub - 9 years
- TypeScript - 8 years
Availability
Part-time
Preferred Environment
MacOS, IntelliJ IDEA, Postman, Slack
The most amazing...
...solution I've developed was a website for a San Francisco-based soccer team.
Work Experience
Senior Front-end Developer
2022 - PRESENT
Freelance Contractor
- Improved the app's loading performance and asset management.
- Tracked and fixed bugs using Jira as a reporting tool.
- Oversaw continuous deployment and continuous integration on Jenkins.
Technologies: TypeScript, React, Web UX, Figma
React Native Engineer
2022 - 2023
Gartner - Peer Insights
- Worked on a small branch that was part of a larger, complex system.
- Worked on the development of mobile and web parts of a wizard-like app.
- Fixed several issues of the React-built process and improved documentation.
Technologies: React, React Native, Web UX
Front-end Software Engineer
2022 - 2022
MTB Acquisition, LLC
- Migrated legacy eCommerce code to Shopify Hydrogen using React.
- Introduced integrations for the reviews and analytics.
- Fixed several issues regarding categorizations and styling.
Technologies: React, JavaScript, TypeScript, Bootstrap, Responsive Layout, Cross-browser Compatibility, GraphQL, Node.js, Shopify, Web UX
React Developer
2022 - 2022
Matija Paunovic
- Exceeded expectations in both quality and quantity of development.
- Developed an MVP that was fully sufficient to begin attracting investors.
- Improved UI/UX that I received from 3rd-party designers.
Technologies: JavaScript, CSS, React, HTML5, WebSockets, Web UX, Tailwind CSS
Front-end Software Engineer
2022 - 2022
World of Esportz
- Improved the application structure and fixed existing issues.
- Moved the whole front-end codebase from EJS to Next.js.
- Observed and got in touch with the back-end codebase to fix some simple issues.
Technologies: React, TypeScript, Next.js, HTML, CSS, Bootstrap, Server-side Rendering (SSR), Node.js, Fetch API, EJS, Web UX
Front-end Software Engineer | Team Tech Lead
2018 - 2022
Symphony
- Developed a web app used for 2D drawing and manipulating objects.
- Sped up generating PDF reports on the front-end side.
- Modeled the web app to work properly in offline mode using Electron.
- Used Twilio to enable patients and doctors to have a chat.
- Integrated with the payment service called Stripe.
- Implemented a video call feature using Amazon Chime.
- Developed a Calendly-like feature for setting the availability, considering different time zones.
Technologies: React, JavaScript, Konva, Django REST Framework, Python, Jira, GitHub, IntelliJ IDEA, Scrum, Electron, Integration, HIPAA Compliance, Stripe, Twilio, Amazon Chime, React Native, TypeScript, PostgreSQL, CSS, HTML, Agile Software Development, Material UI, Redux, Web UX, Figma, Storybook
Front-end Software Engineer
2017 - 2018
CHECK24
- Developed a form-based wizard with video identification.
- Developed a small mobile banking app with fingerprint and Face ID.
- Integrated both of these apps into large CHECK24 apps.
Technologies: AngularJS, JavaScript, iOS, Swift, Xcode, IntelliJ IDEA, TypeScript, HTML, CSS, Agile Software Development, Web UX
Front-end Software Engineer
2016 - 2017
Symphony
- Developed several MVPs, including web and mobile for startup clients.
- Published the first app to the AppStore that achieved 4.9 out of five stars out of 182 ratings.
- Created custom UI transitions and animations using React, JavaScript, and CSS.
- Implemented data fetching and storing using React and Relay.
Technologies: React, Swift, iOS, JavaScript, GitHub, Jira, Xcode, Sublime Text, Redux, Relay, GraphQL, HTML, CSS, Fetch API, Web UX, Contentful
Full-stack Software Engineer
2014 - 2016
Authority Partners
- Developed a web app for managing table entries, with a lot of keyboard shortcuts.
- Wrote complex SQL queries using stored procedures.
- Jumped into the team lead role after a year and a half.
Technologies: Microsoft SQL Server, Entity Framework, .NET, Knockout (Knockout.js), Visual Studio, TFS, JavaScript, HTML, CSS, Bootstrap, Web UX
Experience
Healthcare System
A healthcare system for people of color. The system contained three web apps (marketing site, patient app, and doctor/admin portal) and a mobile app (for patients). I was a front-end developer with the role of a tech lead. Worked closely with almost everyone, developing most of the doctor/admin portal and ensuring the code quality by doing code reviews for each of the mentioned apps.
Web App for a Blasting Industry Leader
A web app for 2D drawing and manipulating. I was a front-end developer with a lead role. Worked closely with the remote product owner to understand the whole business logic and worked closely with the team to transfer the gained knowledge and define a solution for each problem.
SF Deltas
A soccer team website contained the latest news, standings, roster, stats, and ticket prices. I was the front-end developer who worked closely with the remote UI/UX team to ensure an attractive and fun website full of animations.
What Pros Wear
https://apps.apple.com/us/app/what-pros-wear/id1163195374A mobile app designed for baseball fans. I was the iOS developer and worked closely with the back-end developer to define contracts and needed endpoints. I also worked closely with the UI/UX team and the Android developer to ensure a high-quality user experience.
Web App
A Figma-like web app for creating multilayer images and videos in numerous dimensions. As a front-end developer, I first had to move from static creating to dynamic one. Secondly, I added templates for easier creation and grouping. In the end, I added several more layer types. The project is under NDA.
Education
2013 - 2015
Master's Degree in Computer Science
University of Sarajevo (Faculty of Electrical Engineering) - Sarajevo, Bosnia and Herzegovina
2011 - 2013
Bachelor's Degree in Computer Science
University of Sarajevo (Faculty of Electrical Engineering) - Sarajevo, Bosnia and Herzegovina
Skills
Libraries/APIs
React, Node.js, Entity Framework, Konva, Stripe, EJS
Tools
IntelliJ IDEA, GitHub, Jira, Figma, Postman, Slack, Visual Studio, TFS, Xcode, Sublime Text
Languages
JavaScript, TypeScript, CSS, HTML, Python, Swift, GraphQL, HTML5
Frameworks
Material UI, Redux, AngularJS, Bootstrap, Next.js, Tailwind CSS, Django REST Framework, .NET, Knockout (Knockout.js), Electron, React Native, Relay
Paradigms
Agile Software Development, Scrum, Fundamental Design Principles, Parallel Programming, HIPAA Compliance, Responsive Layout
Platforms
MacOS, Contentful, iOS, Twilio, Shopify
Storage
PostgreSQL, Microsoft SQL Server
Other
Software Development, Web Programming, Fetch API, Web UX, Integration, Storybook, Amazon Chime, Server-side Rendering (SSR), WebSockets, Cross-browser Compatibility
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