Konstantin Lebedev

Lithuania

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Summary

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Rockstar

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Top School

Konstantin Lebedev is a seasoned software engineer with 14 years of experience focused on building modern progressive web applications and front-end systems. He has led front-end and integrations efforts at Greenscreens.ai—writing and reviewing all front-end code across multiple apps, authoring OpenAPI schemas, and maintaining backend Node.js services—through a successful acquisition. Konstantin combines hands-on implementation (ES6, Webpack, Jest, vanilla HTML/CSS) with product-facing responsibilities, translating Figma mockups into technical requirements and structuring feature delivery. An active contributor to notable front-end open-source projects like Sortable and jQuery.FileAPI, he has improved core JavaScript, UI/UX, and added features such as webcam support and drag-and-drop examples. Based in Lithuania with a Computer Science background from Vilnius University, he blends practical full-stack skills with partner-facing integration experience and a knack for turning ambiguous requirements into production-ready interfaces.

14 years of coding experience

10 years of employment as a software developer

Bachelor's degree, Informatics, Bachelor's degree, Informatics at Vilniaus Universitetas

Russian, Lithuanian, English

Stackoverflow

Stats

266reputation

5kreached

4answers

2questions

Github Skills (10)

html10

javascript10

jquery10

css9

polymer6

drag-and-drop6

file-api6

file-upload6

jestjs6

angularjs6

Programming languages (3)

TypeScriptJavaScriptGo

Github contributions (5)

SortableJS/Sortable

Dec 2013 - May 2018

Reorderable drag-and-drop lists for modern browsers and touch devices. No jQuery or framework required.

Role in this project:

Front-end Developer

Contributions:6 releases, 637 commits, 216 PRs in 4 years 5 months

Contributions summary:Konstantin's commits primarily focused on front-end development, as evidenced by the modifications to HTML and JavaScript files, including the addition of a Google Analytics tracking script, and the implementation of new styles. The user introduced a new design with CSS changes, including modifications to layout and style for improved rendering and added a new example. There were changes to the core Javascript file.

touch-devicesreact-dndsplitterdrag-dropdrag

RubaXa/jquery.fileapi

Jul 2013 - Oct 2020

jQuery.FileAPI — jquery plugin for FileAPI (multiupload, image upload, crop, resize and etc.)

Role in this project:

Front-end Developer

Contributions:145 commits, 1 PR, 9 pushes in 7 years 3 months

Contributions summary:Konstantin appears to have been primarily involved in the development of the front-end components of the project. Their commits demonstrate a focus on modifying the user interface, including changes to the main application's HTML, fixing HTML coding issues for specific browsers, and making alterations to the JavaScript code. They have fixed image transformation options and incorporated webcam functionality into the project.

jquerycropimage-uploadjavascriptfileapi

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