WORK EXPERIENCE

Webisoft

Sr. Frontend Developer Full Time Remote Employer

Tech stack: Angular2,Angularjs, GraphQL, Jest, Firebase, Storybooks,Contentful, Santry, TypeScript, JavaScript, Node.js, Express, MongoDB, REST APIs, Solidity, Ethereum

•Increased customer rating and satisfaction from 30% to 60% by implementing new ideas in smart contracts for NFT minting with solidity

•Collaborated with the UX/UI design teams and used various Web APIs such as HTTP, REST and JSON to improve the website and applications, increasing conversion rates by 25%

•Created a system consist of swap, pool, staking, lending and borrowing contracts using solidity which improved the company income to 130%

•Implemented 3rd-party integrations, such as payment and authentication systems

•Used various web services like SOAP and XML to increase the efficiency for communicating and exchanging data, making it easier to integrate different systems and create new applications.

•Built and maintained strategic relationships with potential investors and business partners and brainstormed new ideas

•Collaborated with colleagues from other teams to participate in the creation and testing of new software applications Increased 24% faster loading time and time spam per visit by +70 seconds in 5+ projects

•Liaised with backend developers, front end developers, quality assurance testers, and CTO as needed.

•Planned, wrote, and debugged web applications and software with complete accuracy

Bitorix

Sr. React Developer Full Time Remote Employer

Tech stack: React.js, Next.js Redux, Tailwind CSS, MUI, TypeScript, JavaScript, Firebase,Google Analytics, GraphQL, Restful API, WebSocket, MongoDB

•Increased daily traffic from 45% to 80% in E-commerce platforms by redesigning existing websites to improve user experience and incorporated SEO

SKILLS

React.js, React Hooks, Next.js

Redux, React Context

Angularjs, Angular2

JavaScript, TypeScript

Node.js, Express, Nest.js

GraphQL, Restful API

MySQL, PostgreSQL, MongoDB

AWS Amplify, AWS Lambda

Solidity, Web3.js

EDUCATION

Bachelor of Computer Science

University of London

HIGHLIGHTS

•Test Driven Development

•Revenue generation

•Clean architecture

Andrii Lee

Sr. Frontend Engineer

ad2tq1@r.postjobfree.com

Lodz, Poland

https://www.linkedin.com/in/andrii-

l- 644b5028b/

07/2022 – 11/2023

04/2020 – 04/2022

04/2012 – 05/2016

•Designed and developed interfaces that simplify dense information streams and solicit user interactions with machine learning feedback systems that feel intuitive and familiar

•Collaborated on Complexity Score tool, which removed process bottlenecks by assigning scores to cost, time, and compliance issues, increasing efficiency by 72%.

•Developed app integration with REST and other APIs for Google Maps, social media logins, payment processors, and other services

•Collaborated with 2 different development teams on 4 new project designs and feature improvements

•Suggested 20+ improvements to product design and

functionality as informed by user-experience reporting

•Collaborated with 4 client service teams to understand and solve bottlenecks and proposed feature expansions

• Architected, implemented, and maintained 5 performant and scalable data-processing back-end system

•Added an DI image recognition service using python Atos

Frontend Developer Full Time Employer

Tech stack: Angular2, HTML5, Bootstrap, SASS, JavaScript, jQuery, Git, GCP

•Added an additional average of 25% increase in annual company revenue with an average of 15 clients per month Responsible for the quality of the user experience by developing tests suites that maintain functionality, performance and user flows across all modern browsers.

•Developed 10+ cluster projects and utilized public cloud, computing infrastructure services

•Designed 20+ front-end Web Interface for engineers and test-ops to control and monitor the onboard system using Angular2

•Translated designs and wireframes into high quality code

•Analyzed and optimized performance bottlenecks in 8+ existing backend systems, such as database queries and storage solutions, to increase responsiveness

•High quality code

•Deadline focused work

•Open-mind with new technologies

• and challenges

•Team work & communication

•Problem solving

•Creative Idea

06/2017 – 02/2020

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