Oleksii

Oleksii Leshchuk
Web Developer
Experienced web developer with a creative approach to problem-solving and a passion for
developing innovative web solutions. Founder and CEO of several projects, specializing in frontend
development with over 5 years of experience. I have a proven track record of delivering high-
quality projects using modern technologies. My projects are optimized for performance and
meticulously checked for vulnerabilities, ensuring the highest level of security. I excel in both
independent and team settings, consistently exceeding client expectations and delivering projects
on time. My expertise includes many libraries and various frontend frameworks, enabling me to

Contact
create user-friendly interfaces and implement cutting-edge solutions.

Phone Experience
[open contact info](look above in the "contact info" section)

Telegram
https://t.me/Alex_Leshchuk
Nov 2021 - Apr 2024
Email Swipex l Lviv, Kyiv
[open contact info](look above in the "contact info" section) Web Developer
Address Technologies: Vue.js, React.js, Nuxt.js, JavaScript, TypeScript, HTML, CSS, SASS, Python,
Ukraine, Kyiv, 16/18 Nahirna St. Node.js, Express.js, WebSockets
Description: Swipex is an outstaff company where I started working in November 2021.
Since then, I have been involved in a variety of projects spanning different domains and

Education complexity levels.
Role: As a Web Developer at Swipex, I have worked on numerous projects, utilizing a
wide range of technologies including Vue.js, React.js, Nuxt.js, JavaScript, TypeScript,
2015-2019 HTML, CSS, SASS, Python, Node.js, Express.js, WebSockets, etc. This diverse experience
Specialized secondary education has allowed me to tackle various challenges and expand my skill set significantly.
Liceum “Elitar”, Rivne

2019-2023
Aug 2022 - Apr 2024
Computer sciences Bachelor
CultArt l Lviv, Kyiv
University Kyiv NAU
Front-End Developer
Technologies: Vue.js, JavaScript, HTML, CSS, SASS, Mapbox

Expertise Description: CultArt is an application designed for exploring the past and present of the
municipality of Bergdietikon using an online history map. The application features an
interactive map that showcases all the places in the community that are worth seeing or
steeped in history.
JavaScript, HTML, CSS Role: As the Frontend Developer, I was responsible for developing the entire application,
Vue.js, Nuxt, Vue Router, Vuex, Pinia which includes the map, gallery, filters, timeline, routes, and other features. Utilizing
Vue.js, JavaScript, HTML, CSS, SASS, and Mapbox, I ensured that CultArt provided a
Node.js, Python, Firebase
seamless and engaging experience for users exploring the rich history of Bergdietikon.
SASS, Less, Bulma, Tailwind, etc.
Agile, Scrum, Kanban
Git, Github, Gitlab, Bitbucket Aug 2023 - Oct 2023
Blockchain, crypto Viva Health l Lviv, Kyiv
Front-End Developer
Technologies: Vue.js, Nuxt.js, JavaScript, HTML, CSS, SASS
Language Description: Viva Health is the website for Switzerland's health insurance company,
providing information and services to its users.
Role: As the Frontend Developer, I was responsible for developing the entire website for
English Viva Health. This included implementing a variety of animations and complex interface
elements to enhance the user experience. Utilizing Vue.js, Nuxt.js, JavaScript, HTML, CSS,
Ukrainian
and SASS, I ensured that the website was visually appealing, informative, and user-
friendly for visitors.
Aug 2020 - Jan 2024
Med Dojo l Rivne, Lviv, Kyiv
Founder, CEO, Developer
Technologies: Vue.js, JavaScript, TypeScript, HTML, CSS, SASS, Node.js, Express.js,
Firebase, Firestore, Firebase Realtime Database, Cloud Functions, Google Cloud, Algolia,
Open AI API
Description: Med Dojo is a complex CRM system designed for doctors, providing a
comprehensive platform for managing client information. The application features fully
customizable tables where doctors can account for all necessary client information.
Specific fields such as Audiograms and others are provided to accommodate various types
of medical data. Users can search the tables by any field to find specific records, and the
application includes a statistics component for analyzing all records.
Inspiration and Development: The idea for Med Dojo came when a doctor asked me to
find an application for managing client information and I couldn't find a suitable solution.
After conducting research to confirm the demand, I developed a development plan and
started working on the project. The initial version was completed after a few months of
part-time work, with the final version completed in January 2024. The project is currently
in closed testing.
Role: I am the sole actor in this project, serving as the Founder, CEO, Frontend, and
Backend Developer. The frontend was developed using Vue.js, while the backend was
built with Node.js, Express.js, and Firebase. The only aspect of the project I did not handle
was market research, and I occasionally sought advice from individuals with more
experience in developing their own products.

Aug 2022 - Nov 2022
Woub l Lviv
Front-End Developer
Technologies: Vue.js, JavaScript, TypeScript, Cordova, HTML, CSS, SASS, WebSockets
Description: Woub is a project communication software designed for the workplace. The
application includes features such as chats, timelines, kanban boards, and project
management tools.
Role: As the Frontend Developer, I was responsible for implementing new features and
fixing bugs in the Woub application. Utilizing Vue.js, JavaScript, TypeScript, Cordova,
HTML, CSS, SASS, and WebSockets, I ensured that the application provided a seamless
and efficient communication platform for workplace teams.

Nov 2021 - Aug 2022
YouPlan Appel Medical (YPAM) l Rivne, Lviv
Frontend Developer, Designer
Technologies: Vue.js, Nuxt.js, JavaScript, TypeScript, HTML, CSS, SASS
Description: YPAM is an application designed for permanent and fixed-term healthcare
personnel in healthcare establishments to manage their work schedule.
Role: As the Frontend Developer and Designer, I was responsible for creating the web
client application and admin panel for YPAM. I designed the admin panel myself to ensure
a user-friendly and intuitive interface. Utilizing Vue.js, Nuxt.js, JavaScript, TypeScript,
HTML, CSS, and SASS, I developed the frontend components to enable healthcare
personnel to efficiently manage their work schedules.

Mar 2022 - Apr 2022
Groupe Mutuel l Lviv
Frontend Developer
Technologies: Vue.js, Nuxt.js, JavaScript, TypeScript, HTML, CSS, SASS
Description: Groupe Mutuel is a landing page for a mobile application designed for easy
health insurance management. The landing page serves as a promotional tool for the
application.
Role: As the Frontend Developer, I was responsible for developing the entire landing page
for Groupe Mutuel. This included designing and implementing all animations,
functionality, localization features, forms, and other elements. Utilizing Vue.js, Nuxt.js,
JavaScript, TypeScript, HTML, CSS, and SASS, I ensured that the landing page was visually
appealing, user-friendly, and provided a seamless experience for visitors.
Feb 2020 - Nov 2021
Single Broker l Rivne
Frontend Developer
Technologies: Vue.js, JavaScript, TypeScript, HTML, CSS, SASS, Chart.js, Python,
WebSockets, Blockchain, Crypto
Description: Single Broker is CeDeFi's all-in-one platform designed for institutional
investors and professional traders. It integrates centralized exchanges, DeFi tools, secure
storage, and simplifies crypto asset portfolio management, daily trading, and asset
allocation across venues.
Role: As the sole Frontend Developer, I played a crucial role in developing the platform's
user interface. I designed and implemented complex trading tools with high-loaded data
flows, portfolio analytics tools, trading asset research features, and account data
management functionalities. Utilizing Vue.js, JavaScript, TypeScript, HTML, CSS, SASS,
and Chart.js, I ensured that the platform provided a seamless and efficient experience for
institutional investors and professional traders. Additionally, I developed a microservice
on the backend for optimizing high-loaded data streams.

Feb 2021 - Sep 2021
NDA - Paper Work Automation l Rivne
Co-Founder, CTO, Backend Developer
Technologies: Flutter, BLoC, Cubit, Python, Firebase, Firestore, Cloud Functions, Google
Cloud
Description: The project is a mobile multiplatform application designed to streamline
paperwork during business relations. The idea for the project came from a previous
colleague, whom I had worked with in the past. After accepting his proposal to become a
co-founder and CTO, I selected the technologies for development and initiated the
project.
Role: As the CTO, I was responsible for overseeing the technical aspects of the project.
This included finding a Flutter developer, creating tasks for them, and supervising the
development process. Additionally, I contributed to the mobile Flutter application
development and served as the sole backend developer. The backend was implemented
using Firebase with Node.js, ensuring seamless communication between the frontend and
backend components.

May 2021 - Jun 2021
Mosaicpay l Rivne
Frontend Developer
Technologies: HTML, CSS, JavaScript, SASS
Description: Mosaicpay is a landing page for a financial services company offering best-
in-class solutions for corporate and private clients. The landing page was designed to
showcase the company's services and attract potential clients.
Role: As the Frontend Developer, I was responsible for creating the entire user interface
of the landing page. This included implementing scroll animations for slider scrolling and
parallax effects to enhance the visual appeal and user experience. Utilizing HTML, CSS,
JavaScript, and SASS, I ensured that the landing page effectively communicated
Mosaicpay's offerings to its target audience.

Mar 2021 - Jun 2021
Single Broker Landing l Rivne
Frontend Developer
Technologies: HTML, CSS, JavaScript, SASS, wow.js, animate.css
Description: The projecet is the second version of the landing page for Single Broker. This
version features more pages and incorporates complex animations using wow.js and
animate.css. Despite the increased complexity, the project was not particularly
challenging to develop.
Role: As the Frontend Developer, I was responsible for implementing the design and
animations for the landing page. Utilizing HTML, CSS, JavaScript, SASS, wow.js, and
animate.css, I ensured that the landing page was visually engaging and provided an
enhanced user experience.
Sep 2020 - Dec 2020
Weave pay l Rivne
Frontend Developer
Technologies: HTML, CSS, JavaScript, SASS
Description: Weave Pay is an international payment provider, and I was involved in
developing its landing page. The landing page is a multi-page site containing a wealth of
information about Weave Pay's services. It features complex animations and interface
elements to engage visitors and provide a seamless user experience.
Role: As the Frontend Developer, I was responsible for developing the landing page,
including all its functionalities and animations. Using HTML, CSS, JavaScript, and SASS, I
ensured that the landing page was visually appealing, informative, and easy to navigate
for visitors.

Aug 2020 - Oct 2020
LeQueue l Rivne
Co-Founder, Frontend Developer
Technologies: Vue.js, Nuxt.js, JavaScript, TypeScript, HTML, CSS, SASS, Python,
WebSockets
Description: LeQueue is a drive licence exams auto booker designed to simplify the
process of booking time slots for Canadian new drivers. The idea stemmed from the
complexity of booking drive licence exams and the need for a more user-friendly solution.
Role: As a Co-Founder and Frontend Developer, I was responsible for developing the
entire frontend of the project using Vue.js and Nuxt.js. This included designing and
implementing the user interface to facilitate easy booking and automatic booking of new
available slots when other users canceled their bookings. Additionally, I created a simple
backend microservice using Python for WebSocket client-server communication to handle
the stream of updates, ensuring a seamless experience for users.

Jun 2020 - Sep 2020
Medeq l Rivne
Frontend Developer
Technologies: Vue.js, JavaScript, HTML, CSS, SASS
Description: Medeq is an online shop for medical equipment, offering a range of products
and features typical of e-commerce platforms. The platform includes a shopping cart,
ordering system, product listings, and functionality for filtering and sorting items.
Role: As the Frontend Developer, I was responsible for developing the entire frontend of
the project. This involved creating the user interface, implementing features such as the
shopping cart, ordering process, and product filtering, and ensuring a seamless and user-
friendly experience for customers. Utilizing Vue.js, JavaScript, HTML, CSS, and SASS, I
ensured that the platform met the requirements of an online medical equipment shop.

Apr 2020 - May 2020
Single Broker Landing l Rivne
Frontend Developer
Technologies: Vue.js, JavaScript, HTML, CSS, SASS
Description: Single Broker Landing is the landing page for the Single Broker platform,
designed to showcase its features and attract potential users and investors.
Role: As the Frontend Developer, I was responsible for creating a captivating and
informative landing page. I implemented numerous complex scroll animations and
interface elements to enhance the user experience and highlight the key features of
Single Broker. Utilizing Vue.js, JavaScript, HTML, CSS, and SASS, I ensured that the
landing page was visually appealing and engaging for visitors.
Dec 2019 - Jan 2020
Mono Client l Rivne
Founder, CEO, Developer
Technologies: Vue.js, JavaScript, TypeScript, HTML, CSS, SASS, Chart.js, monobank API
Description: Mono Client was born out of the need for advanced bank account analysis
when traditional banking solutions fell short. At the time of its creation, there were no
satisfactory options for complex bank account analysis provided by my bank, so I took
matters into my own hands.
Role: As the Founder, CEO, and sole Developer, I conceptualized, designed, and
developed Mono Client from the ground up. This included researching and integrating the
monobank API, implementing all analytical tools, establishing API connections, designing
the interface, implementing authentication systems, and more. Utilizing Vue.js, JavaScript,
TypeScript, HTML, CSS, SASS, and Chart.js, I successfully created an application that
revolutionized the way bank accounts could be analyzed, providing a comprehensive and
user-friendly solution for complex financial needs.

Nov 2019 - Jan 2020
Prefloper l Rivne
Frontend Developer
Technologies: Vue.js, JavaScript, HTML, CSS, SASS
Description: Prefloper is a platform designed for professional poker players, offering
strategies and polls generation for the preflop stage of the game.
Role: As the Frontend Developer, I was responsible for developing the entire frontend
component of the project. This included implementing a complex table for strategy
generation, a poll generator, and a file system interface for storing strategies. Utilizing
Vue.js, JavaScript, HTML, CSS, and SASS, I ensured that the platform provided a seamless
and efficient user experience for professional poker players.

Sep 2019 - Dec 2019
NDA - Form Builder l Rivne
Lead Frontend Developer, Tester
Technologies: Vue.js, JavaScript, TypeScript, HTML, CSS
Description: The project was developed as a polls builder for the Institute of Social
Research. In my role as Lead Frontend Developer and Tester, I played a key role in the
project's success.
Role: Using Vue.js, JavaScript, TypeScript, HTML, and CSS, I provided complex functional
implementations and conducted thorough testing of the application. This included
creating automated tests and fixing bugs reported by other developers. My contributions
ensured the form builder met the Institute of Social Research's requirements for
functionality and usability.

Sep 2018 - May 2019
SolStat l Rivne
Co-Founder, CTO, Lead Frontend Developer
Technologies: Vue.js, JavaScript, TypeScript, HTML, CSS, Chart.js, Elixir
Description: SolStat is an application designed to track the working statistics of home
solar power plants, making the analytic process easier for users. The idea for SolStat
originated from a desire to simplify the analytics of home solar power plants.
Achievements: The project received recognition in the Ukrainian JAS science contest,
where it took first place in several stages and was a participant in the national stage. The
project presentation received the highest score, highlighting its innovative approach and
impact.
Role: As one of the two founders and the Lead Frontend Developer, I played a key role in
the development of SolStat. I was responsible for developing the entire frontend of the
application, including connecting it to the API, implementing analytics tools,
authentication systems, and other frontend functionalities. Utilizing Vue.js, JavaScript,
TypeScript, HTML, CSS, Chart.js, and Elixir, I ensured that SolStat provided users with a
seamless and efficient way to track the working statistics of their home solar power
plants.
Oct 2017 - Jan 2018
NDA - Analitycs Tool l Rivne
Tester
Technologies: JavaScript, Chrome Devtools
Description: The project was developed as an analytical tool to enhance customer
experience. As a Tester, my role involved evaluating the web UI and UX to ensure they
aligned with the project's objectives and provided an optimal user experience.
Role: Using JavaScript and Chrome DevTools, I conducted comprehensive testing to
identify and resolve issues, ensuring the tool's functionality and usability were of the
highest standard. My contributions helped enhance the tool's performance, resulting in a
more effective analytics solution for improving customer experience.

May 2017 - Feb 2020
Freelance l Rivne
Fullstack Developer
Technologies: JavaScript, HTML, CSS, Node.js, Python, Vue.js, React.js, Angular.js
As a freelance Fullstack Developer, I gained valuable experience working on a variety of
small and medium-sized web development projects. This role was pivotal in shaping my
career path towards web development. It allowed me to develop key skills such as self-
organization, project planning, full-cycle project development, client negotiations, and
sales.

Working independently, I honed my skills in JavaScript, HTML, CSS, and various frontend
frameworks including Vue.js, React.js, and Angular.js. This experience solidified my
passion for web development, leading me to specialize in Vue.js as my primary framework