React Developer & React Native Developer

The candidate is a lead software engineer with 7 years of software development experience. He has a Master's degree in Machines and Technology of Material Treatment by Pressure. His technical experience includes proficiency in programming languages such as JavaScript and TypeScript, as well as databases like MongoDB and MySQL. He has worked on various projects using technologies like React, React Native, Redux, GraphQL, and Firebase. The candidate has also been involved in projects in industries such as banking, security, ecommerce, financial, and software & hitech. He has experience in team management, code review, mentoring, and conducting interviews.

Project

• Period: 02/2021 - 07/2021
• Industry: Banking
• Description: Developed a business banking app that combines tax, bookkeeping, and invoicing functionalities.
• Technologies: React, React Native, Apollo, GraphQL, TypeScript, Storybook, Lokalise.
• Team Size: 10.

Project

• Period: 12/2019 - 02/2021
• Industry: Security
• Description: Created an application for managing and storing user data, implementing SSO, and backups.
• Technologies: React, TypeScript, Storybook, Linaria, Webextension-polyfill.
• Team Size: 5.

Project

• Period: 04/2019 - 12/2019
• Industry: Ecommerce
• Description: Worked on a large distributor of electronics and maintenance products.
• Technologies: React, GraphQL, Node.js, Next.js, AWS Lambda, Styled-components, Terraform, Flow.
• Role: Lead Software Engineer.
• Responsibilities: Development, code review, mentoring.
• Team Size: 10.

Project

• Period: 06/2019 - Present
• Industry: Financial
• Description: Developed a cross-platform application for iOS and Android using React Native.
• Technologies: React Native, Redux, Redux Observable, Rx.js, WatermelonDB, Firebase, Charts, In-app purchases, Flow.

Project

• Description: Created a cross-platform application available on Google Play Store.
• Link: https://play.google.com/store/apps/details?id=com.soft.znich.flowmo

Project

• Period: 09/2017 - 12/2017
• Industry: Software & Hitech
• Description: Developed a library for communication between a Node.js server and a C++ project for managing office devices over a mobile app.
• Technologies: Node.js, ZeroMQ, Jasmine, Flow.
• Role: Senior JavaScript Developer.
• Responsibilities: Development, search performance optimization, communication with the customer.
• Team Size: 3.

Project

• Period: 12/2016 - 09/2017
• Industry: Software & Hitech
• Description: Worked on the development of www.mercify.com.
• Technologies: React, Redux, Mocha, jQuery, CSS3.
• Role: Lead Full-stack Developer.
• Responsibilities: Search performance optimization, frontend development, management of frontend JS projects.
• Team Size: 3.

Project

• Period: 12/2016 - 09/2017
• Industry: Games Software
• Description: Developed multiplayer games with server-side functionality.
• Technologies: Node.js, Redis, Websockets, MongoDB, Mocha.
• Role: Lead Full-stack Developer.
• Responsibilities: Search performance optimization, server-side development, management of server-side JS projects.
• Team Size: 5.

Project

• Period: 03/2016 - 12/2016
• Industry: Retail & Distribution
• Description: Worked on various projects including threatlens.stratfor.com and worldview.stratfor.com.
• Technologies: React, Redux, Enzyme, Nightwatch.js, Selenium Server, Node.js.
• Role: Frontend Developer.
• Responsibilities: Frontend development, QA, bug fixes, performance optimization, communication with the customer.
• Team Size: 8.

Project

• Period: 06/2015 - 03/2016
• Industry: Retail & Distribution
• Description: Worked on projects for a1qa.com, labs.networktocode.com, zefr.com, and toddshelton.com.
• Technologies: PHP, CMS WordPress, jQuery, React, CSS3, HTML5.
• Role: WordPress Developer.
• Responsibilities: Developed WordPress templates and plugins, frontend development, bug fixes, communication with the customer.
• Team Size: 3.