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Nikita O.
🇺🇦Ukraine (UTC+02:00)
Created AtUpstaffer since March, 2022
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Nikita O. — Full-Stack Software Engineer (Java + Angular)

Expertise in Full Stack Web.

 Last verified on March, 2026

Core Skills

Bio Summary

- 6 years of experience in developing web applications using cutting-edge technologies
- Obtained a lot of experience in AngularJs, Angular2+, Microfrontend, Microservices, Java, Spring, JS/TS, HTML, CSS, and other related technologies
- Experience in leading teams of 5 more people
- Main subject areas include healthcare, government projects, insurance, etc.
- Upper-Intermediate English
- Available ASAP

Technical Skills

Programming Languages Java, JavaScript, TypeScript
JavaScript Frameworks Angular, AngularJS, jQuery, React
JavaScript Libraries and Tools Grunt, Gulp.js, NgRx, RxJs, Webpack
Java Frameworks Spring
Databases & Management Systems / ORM Flyway, Microsoft SQL Server, MongoDB, MySQL, PostgreSQL
UI Frameworks, Libraries, and Browsers Ant Design, Bootstrap, CSS, HTML, jQuery
Virtualization, Containers and Orchestration Docker
Version Control Git, SVN
Deployment, CI/CD & Administration Gradle
QA, Test Automation, Security Jest, JUnit, Mockito, React Testing Library
Operating Systems macOS, Ubuntu, Unix, Windows
Other Technical Skills AssertJ, Boot, Bower, Mint

Under NDA

02.2021 – 01.2022

Description: Big ecommerce website with a lot of functionality. Payments, blog, private account, news, etc.

Technologies: HTML5, CSS3, SASS, Docker, TS, Angular 7

Under NDA

07.2020 – 02.2021

Description: Huge medical insurance project for a big customer from the USA. Working with multinational teams, we were building different modules and customizing them for various clients.

Technologies: HTML5, CSS3, Bootstrap, Typescript, Angular 7, Docker, Git, Gulp

QuickTalk

02.2020 – 07.2020

Description: QuickTalk is a simple messaging application with ability to create.delete chat, send.delete messages and upload attachments. QuickTalk was created as mvp project for investors.

Technologies: HTML5, CSS3, React.js, Redux, JavaScript, Ant Design, Moment.js, Git

Under NDA

01.2019 – 02.2020

Description: Part of big system of instruments which help business owners to manage and analyze their data across supermarkets and restaurants.

Responsibilities: Development and support front-end part of the app. Worked with charts and table for analytics data.

Under NDA

08.2018 – 01.2019

Description: Internal application for software development company related to managing people between projects, contains additional metrics, schemas, charts for this purpose.

Technologies: Java, Spring Boot, CouchBase, Apache Kafka, Angular 6, React.js

Under NDA

02.2018 – 08.2018

Description: Healthcare project for the Swiss company. Moving UI part from AngularJS to Angular 5

Technologies: Javascript, Typescript, AngularJS, Angular 5

Under NDA

01.2015 – 01.2018

Description: An integration and chat platform startup (like Skype, Instagram, Telegram). The project was based on the microservices architecture.

Technologies: Java 6, later changed to 8, Spring, Vert.x, WebSocket, Angular 2, RxJs, Kurenta.

Under NDA

08.2014 – 01.2015

Description: It was a project based on microservices architecture. I was involved into developing one service related to renew patient insurance for the next year.

Responsibilities: developing new features, bug fixing

Technologies: Java, Spring Boot, Spring Batch, Spring Data, Gradle, MSSQL Server.

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