Andrew Katsewich

Web & Mobile Developer

Vilnius, LithuaniaCoherent Solutions

With 8 years of commercial experience, I have contributed to more than 15 commercial projects in a diverse range of fields and for various types of clients. My primary expertise lies in UX and product thinking. I love building things and currently studying UI design while working on Team Up.

React
Next.js
React Native
Convex
SolidJS
Astro

Download Resume

Experience

Sep 2025 – Present

Coherent Solutions

Frontend Web Developer

Reworked a web app and browser extension for a tax management platform. Implemented a major feature in the investment process of a real estate investment platform.

Jan 2025 – Aug 2025

EPAM

Frontend Web Developer

Migrated websites for a big enterprise client using Next.js. Set a standard on efficient use of dev toolchain.

Sep 2021 – Nov 2024

CreativeIT

Frontend Web Developer

Created a total of 8 projects with React and Next.js, and contributed to team growth through mentoring and conducting technical interviews.

May 2019 – Jun 2020

Totle

Frontend Web Developer

Created a new lightweight front-end app with React + Redux. Integrated our back-end service with various wallets. Created backoffice-related services.

Oct 2018 – Nov 2018

WEB Secret

Ethereum Developer

Built a POC DAO DApp on Ethereum smart-contracts, React.js, and Web3.js, and added test coverage on JavaScript with Mocha + Chai.

Jan 2018 – Oct 2018

TechBüro

Ethereum Developer

Created smart-contracts for 2 internal projects. Created multiple POC prototype apps. Integrated communications with Ethereum on both backend and frontend sides.