Candidates 229
$5000 / mo
≈ $60000 / year net
Senior Node.js Developer
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published today
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published today
-Employed microservices and load balancing techniques to distribute traffic efficiently across servers.
-Conducted performance profiling and optimization of critical components to ensure responsiveness under high concurrent user loads.
-Utilized caching mechanisms and database indexing to enhance response times and reduce server load.
Architect and develop efficient, high-performance backend solutions.
Contribute to the entire software development lifecycle, from requirements analysis to deployment.
Collaborate with cross-functional teams to understand business requirements and deliver optimal technical solutions.
Stay updated with the latest trends and best practices in Node.js development.
I am not looking for a role that primarily involves routine tasks without opportunities for innovation and learning. I prefer not to work in an environment with limited growth potential and minimal collaboration.
$5000 / mo
≈ $60000 / year net
Senior Front end developer (ReactJS+NestJS)
Ukraine · Kyiv · 7 years of experience · Intermediate ·Published today
Ukraine · Kyiv · 7 years of experience · Intermediate ·Published today
Worked with different databases: PostgreSQL, MongoDB.
Had experience with Rest API and GraphQL.
Experienced as a Full Stack Developer using React and NestJs.
$3000 / mo
≈ $36000 / year net
Senior Full Stack Engineer
Ukraine · Kyiv · More than 10 years of experience · Intermediate ·Published today
Ukraine · Kyiv · More than 10 years of experience · Intermediate ·Published today
Development / implementation / Support
- Web Application
- Web Service
- CPaaS Solution
- Low-Code system
- Flow Automation
- Stream Data processing
- Design systems / UI
- Multi Tenant / SSO
- CI/CD pipelines / SRE
- API / SDK / third party integration
- cutting edge technologies
$4000 / mo
≈ $48000 / year net
Senior Software Engineer
Ukraine · Kyiv · More than 10 years of experience · Intermediate ·Published today
Ukraine · Kyiv · More than 10 years of experience · Intermediate ·Published today
Development / implementation / Support
- Web Application
- Web Service
- CPaaS Solution
- Low-Code system
- Flow Automation
- Stream Data processing
- Design systems / UI
- Multi Tenant / SSO
- CI/CD pipelines / SRE
- API / SDK / third party integration
- cutting edge technologies
$5500 / mo
≈ $66000 / year net
Senior Front-End Developer
Ukraine · More than 10 years of experience · Upper-Intermediate · 🪖 DFU combatant ·Published today
Ukraine · More than 10 years of experience · Upper-Intermediate · 🪖 DFU combatant ·Published today
Continuously developing new features and improving existing subprojects - web platform, Chromecast receiver, video player. Created and released Samsung/LG SmartTV app from scratch.
React, Preact, Styled Components, astroturf, Node.js
- Communication API platform - DX team:
Expanded list of available components, following developers' feedback. Improved existing and created new tools, helping in developing and continuously maintaining created products. Worked together with designers, proposing and implementing new features. Improved level of UI components consumption among other teams.
TypeScript, React, Redux, Less, CSS-modules, CSS-in-JS, Node.js, Webpack
- Bluetooth locators product:
Manage a team of 3. Coordinate work with contact points from the customer side, product owners, and developers. Propose, discuss, implement features. Organize and resolve difficulties in the workflow.
Implemented new ways of user authentication, introduced referral program (user dashboard, landing page), added new payment methods.
React, Node.js, PHP, Mysql, 3rd-party integration with Salesforce, Apple/Amazon pay, GTM, etc.
- Airways company
Project kick-off
Designed frontend and backend software architecture for end-users single sign-on
Node.js, Angular, AWS DynamoDB, AWS KMS
- Enterprise energy-efficiency company:
Being one FE-engineer on project handled all related tasks and decisions.
Rewrote module-by-module from the iFrame application to SPA using AngularJS.
Increased speed of loading application, navigation between sections.
Increased speed of rendering charts using Highcharts.js with a big amount of data.
Created new custom widgets using D3.js.
Customized existing widget charts based on FusionCharts.
- Cloud hosting company
Created project from scratch web-based dashboard for the cloud-hosting platform.
Created wizard for creation of virtual machines, UI for management of virtual servers, plugins for integration with 3rd party products.
$2000 / mo
≈ $24000 / year net
Front-End/JavaScript Developer
Ukraine · 6 years of experience · Intermediate ·Published yesterday
Ukraine · 6 years of experience · Intermediate ·Published yesterday
I am a Front-end developer with more than 6 years of commerce experience.
I worked as Front-End Developer with international companies, with different stacks, using vanilla.js, SCSS, React.js, Vue.js. Based on Node.js back-end or PHP (as Magento2, WordPress).
Different projects in ecommerce: shops, apps, marketing.
It was creating of new themes to CMS, custom solutions etc.
My tech skills:
- JavaScript, PHP, Node.js
- React.js, Redux, jQuery, Backbone
- CSS/SCSS/SASS/LESS/Stylus, HTML5
- MySQL, MongoDB
- Gulp, WebPack, Grant
- Nginx, Apache2, Git, Docker, Jenkins, Linux env.
Now I'm looking a challenge, to fast growing up.
Looking back to my experience I work as independent, but as a team player. Openness and focus on the result are my main qualities.
Master of Computer Science Degree, Specialty: applied programming.
$4000 / mo
≈ $48000 / year net
Senior Front-end developer
Ukraine · Kyiv · 6 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · Kyiv · 6 years of experience · Upper-Intermediate ·Published yesterday
* Code review
* Refactoring
* Reverse engineering
* Debugging
* Mentoring
* Interviewing
- Integration with AWS, Azure, Google Firebase.
- Migrating functionality from AngularJS and Django to React
- WebRTC and web-socket
- Functional programming
- Creating reusable components library
- Backend / AR device integration through API
- Testing components (Unit tests, SonarQube, BDD, Cucumber, react-testing-library)
- I've been working in the SEO field for 2 years, and have a pretty clear understanding, of how search engines work
Node.js experience:
- Working with databases (MySQL, NoSQL) including Sequelize and Mongoose
- Creating REST API, working with web-socket
- Working with cookies and sessions
- Working with files
- Understood how AngularJS works and even implemented new features on that, in that project where we were supposed to migrate from it
- Made users happier by providing nice UX
- Nice and friendly team
- Comfortable working place
- Possibility to grow as Fullstack dev
$3500 / mo
≈ $42000 / year net
Frontend Developer (Vue / Nuxt / Node)
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published yesterday
- Vue.js 2, 3, Nuxt.js;
- JavaScript, TypeScript;
- HTML, CSS, and experience with a great amount of libs;
- Node.js, Python;
- Firebase. Cloud Functions, Firestore, Realtime Database, and others;
- Experience in creating own products
Throughout my career, I have successfully delivered projects, adapted quickly, and stayed updated with the latest trends. I am passionate about continuous learning and strive to contribute to the development of innovative web applications.
If you have any questions feel free to contact me. Let’s make your product perfect together.
As the sole frontend developer, successfully developed a large, complex application for trading and investment, featuring high-load trading and analytic tools.
Founder of several tech projects with a user base, demonstrating entrepreneurial drive and leadership in the tech industry.
Prioritizes security and optimization, consistently checking projects for security vulnerabilities and opportunities for optimization across different projects.
$500 / mo
≈ $6000 / year net
Node.js developer
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published yesterday
$2500 / mo
≈ $30000 / year net
Senior Software Engineer
Ukraine · Kyiv · 5 years of experience · Advanced/Fluent ·Published yesterday
Ukraine · Kyiv · 5 years of experience · Advanced/Fluent ·Published yesterday
Fluent in English, elementary in French, Italian, Spanish, German.
Summary:
- experience with domain-driven software design
- development of web applications from scratch
- development and maintenance of existing projects
- new features
- refactoring (incl. performance optimization, monolith-to-microservices, functional-to-OOP, etc.)
- proof of concepts
- dependencies update
- unit tests
- auto tests
- migrations for database
- data modelling
- database queries profiling and optimization
- code reviews
- candidates interviews
- mentoring
- small team management for complete feature/refactoring implementation
Some of the user-facing projects were:
1. Online document editor (similar to Google Docs).
Role: backend developer.
Originally used by publishers to edit books. Later became the application for financial reporting for businesses in US.
Azure, AWS, Docker, Nginx, uWSGI, Python (Bottle, FastAPI), JavaScript (Node.js, Express.js), bash, gRPC, MongoDB, Redis, Celery, XML, XSLT.
2. Badge managing application.
Role: devops(5%), backend (80%) / frontend (15%) developer.
Used by Security Department of the company to prepare new badges for employees and monitor who and when enters / leaves the premises.
Nginx, JavaScript, Node.js, Express.js, OKTA, PostgreSQL, Redis, React, AntDesign, Redux, AWS S3.
3. Official SQUAD website - squad.ua.
Role: devops, backend developer.
Nginx, JavaScript, Node.js, Koa.js, PostgreSQL, React.
4. Food ordering platform.
Role: devops, backend developer.
Apache, Python, Django, MySQL, Celery, RabbitMQ, GCP.
5. Web-application for video annotation (annotated data is then used for supervised machine learning).
Role: devops, backend developer.
Had to rewrite backend(PHP to Python) for old frontend and bind them together.
Apache, JavaScript, Node.js, Express.js, GCP SSO, PostgreSQL, VanillaJS, JQuery.
Tools created for personal professional use:
1. db-profiler.
Can be used either via cli or GUI, depending on the task.
Automated profiler for remote/local MongoDB queries.
Sophisticated backend and minimalistic frontend.
SSH, Nginx, Node.js, TypeScript, Koa.js, MongoDB, Vue.js, AntDesign.
etc.
Initiated and implemented the idea of switching from using Mongoengine ODM to using custom-made models for in-memory usage. Main benefits:
- reduced runtime overhead
- faster code execution and, by extension, http response
- less memory consumption (~9 times lighter objects/instances)
- more control over database queries