Sviatoslav (T) Kondur-Developer
Check rate
Experience
Frontend Developer
FRATCH
Developer (Todo List Application)
Self-employed
- Created a task management app that enables users to create, organize, and track tasks, with the ability to save tasks on a server.
- Tools and technologies used: React, TypeScript, RESTful API, Bulma.
Team Lead (Web Shop Nice Gadgets)
Self-employed
- A web page for a gadgets shop where users can browse electronic devices such as phones, tablets, and watches. Features include adding gadgets to the cart or to a list of favorite products.
- Responsive markup ensures usability across different screen sizes.
- Tools and technologies used: ReactJS, TypeScript, React Router, SCSS, HTML, BEM, Chrome devTools, Lighthouse, Axios, Swiper, React Select, PrimeReact, Formik, Express.js, Sequelize, PostgreSQL, NPM, Webpack, ESLint, Git, GitHub, JWT.
Developer (Landing mBIKE)
Self-employed
- Developed a landing page showcasing a diverse range of bikes with high-definition images, detailed descriptions, and specifications to help users make informed choices.
- Ensured a smooth shopping experience on desktop, tablet, and mobile devices.
- Tools and technologies used: SCSS, grid, HTML, BEM, Chrome devTools, Lighthouse, Git, GitHub.
Full Stack Developer
Self-employed
- Created new and modified existing websites using JavaScript, HTML, and CSS, and implemented web applications using modern technologies (JavaScript, React, Vue.js, Redux, TypeScript).
- Wrote reusable, testable, and efficient code, following development standards and coding best practices, and taking responsibility for the code.
- Performed code reviews, investigated, reproduced, and fixed defects, and communicated with external web services.
- Attended regular Zoom meetings with the team and actively worked in a team, communicating with team members to achieve development goals.
Content Creator
hardreset.info
Created more than 5,000 manuals and documentation for various programs for multiple operating systems. Often my tutorials were the most popular pages on the entire website. All textbooks were written in English. I also edited all the necessary photos for these tutorials using Photoshop and GIMP.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology and Retail.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Sales.
Summary
I'm a Full-stack developer with experience in creating engaging, interactive user interfaces. I am proficient in React, TypeScript, and Node.js, which allows me to build robust and scalable applications. Aside from the essentials, I ensure clean, maintainable code throughout all projects. I have expertise in HTML5 and CSS3 and use Sass to style efficiently while following the BEM methodology for a structured and organized codebase. My skill set includes not only client-side development but also server-side integration using Express.js, resulting in dynamic, high-performance web applications. A computer science education has given me an open mind to learn new skills (Angular, Vue.js).
Skills
Programming Languages & Frameworks
- React
- Typescript
- Javascript (Es2015 - 2019)
Frontend Technologies And Frameworks
- Html5
- Css3
- Redux
- Bootstrap
- Sass (Scss)
- Bulma
Backend Technologies And Frameworks
- Node.Js
- Express.Js
- Sequelize
- Postgresql
Psd To Html
- Figma
Version Control
- Git
Task Management And Tools
- Npm
- Webpack
- Trello
- Jira
- Clickup
Basics
- Oop Understanding
- C# Knowledge
- .Net
- Vue.Js
- Angular
- Mysql
- Rxjs
- Ngrx
Languages
Education
Zespół Szkół Zawodowych Huty im. Tadeusza Sendzimira
IT Technician · Technik Informatyk (Computer Science)
Certifications & licenses
JavaScript algorithms and data structures certification
freeCodeCamp
Building Modern UIs with React Router v6
EF SET English Certificate 71/100 (C2 Proficient)
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Sviatoslav is based in Kraków, Poland and can operate in on-site, hybrid, and remote work models.
Sviatoslav speaks the following languages: Ukrainian (Native), English (Advanced), Polish (Advanced).
Sviatoslav has at least 6 years of experience. During this time, Sviatoslav has worked in at least 6 different roles and for 3 different companies. The average length of individual experience is 1 year and 11 months. Note that Sviatoslav may not have shared all experience and actually has more experience.
Based on recent experience, Sviatoslav would be well-suited for roles such as: Frontend Developer, Developer (Todo List Application), Team Lead (Web Shop Nice Gadgets).
Sviatoslav's most recent position is Frontend Developer at FRATCH.
In recent years, Sviatoslav has worked for FRATCH, Self-employed, and hardreset.info.
Sviatoslav is most experienced in industries like Information Technology and Retail.
Sviatoslav is most experienced in business areas like Information Technology, Product Development, and Sales.
Sviatoslav has recently worked in industries like Information Technology and Retail.
Sviatoslav has recently worked in business areas like Information Technology, Product Development, and Sales.
Sviatoslav attended Zespół Szkół Zawodowych Huty im. Tadeusza Sendzimira for Technik Informatyk (Computer Science).
Sviatoslav has 3 certificates. These include: JavaScript algorithms and data structures certification, Building Modern UIs with React Router v6, and EF SET English Certificate 71/100 (C2 Proficient).
Sviatoslav is immediately available part-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 28 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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