Candidates 21047
$150
/ mo
NET
≈ $1800 /
year net
ASP.NET
·
No experience
·
B1 - Intermediate
·
Published
today
Ukraine, Kharkiv
·
Only remote
Фріланс розробка телеграм-бота для створення вікторин або тестових завдань, який буде зручним інструментом для викладачів різних шкіл чи курсів. Додаток мовою С# з інтеграцією з відкритими API Telegram та використанням технологій .NET 7, WPF, Entity Framework Core.
$2500
/ mo
NET
≈ $30000 /
year net
PHP
·
More than 10 years of experience
·
No English
·
Published
today
Ukraine
·
Only remote
2022-...: Підтримка та доопрацювання телекомунікаційного legacy-проекту (PHP 7.4 + MariaDB + RabbitMQ + ...) та проектів на Symfony;
2023-2024: Розробка та впровадження системи обліку оплат студентів (PHP/Laravel/MariaDB);
2019-2022: Розробка та впровадження системи продаж та обліку для мережі роздрібних магазинів (PHP/Yii2/MariaDB);
2014-2017: підтримка інтернет магазину (PHP5.6/Zend) - ETL процеси;
2006-2010: Впровадження Oracle JD Edward, SAP/R3.
1993-2014: розробка та впровадження власних програмних проектів;
2023-2024: Розробка та впровадження системи обліку оплат студентів (PHP/Laravel/MariaDB);
2019-2022: Розробка та впровадження системи продаж та обліку для мережі роздрібних магазинів (PHP/Yii2/MariaDB);
2014-2017: підтримка інтернет магазину (PHP5.6/Zend) - ETL процеси;
2006-2010: Впровадження Oracle JD Edward, SAP/R3.
1993-2014: розробка та впровадження власних програмних проектів;
Highlights
Проект, яким користуються вже більше 29 років і який пережив декілька трансформацій.Проект, з терміном життя 24 роки.
Налагодження процесів розробки в команді.
Looking for
Шукаю нові виклики
Skills
PHP
Domains
Doesn’t consider: Adult, Gambling, Dating, Gamedev, Blockchain / Crypto
$3500
/ mo
NET
≈ $42000 /
year net
React.js
·
9 years of experience
·
B2 - Upper Intermediate
·
Published
today
Ukraine, Kyiv
·
Only remote
About Me
I am a Senior Software Engineer with experience in multiple domains, including security, healthcare, B2B marketplaces, and nonprofit platforms, working in both startup and enterprise environments. I build and improve complex frontend applications using React 18, Next.js, Remix, Redux Toolkit, and Valtio, while also working with backend integration using Node.js, Express, REST, and GraphQL.
I have delivered large projects by creating new UI components, implementing business logic, refactoring legacy code, improving performance, and applying modern design systems and theming. I work closely with designers, backend engineers, and product teams to create responsive, accessible, and maintainable solutions.
I enjoy learning and applying modern technologies, solving problems across the full stack, and helping teams build better products efficiently.
Skills
Core Frontend: TypeScript, React 18, Next.js, Redux Toolkit
Frameworks: Next.js, Remix, Radix UI
Backend: Node.js, Express, MongoDB, MySQL, Mongoose, Sequelize, Prisma
State Management: Redux Toolkit, RTK Query, Valtio
Styling & UI: Tailwind CSS, SCSS, Styled-Components, Material UI, PrimeReact, Storybook
Forms & Validation: React Hook Form, Formik, Yup, Zod
Testing: Vitest, React Testing Library, Cypress, Playwright
Build & Tooling: Webpack, Turbopack, Vite, Bun, Docker, Git, ESLint, Lodash, Moment
APIs & Integration: REST APIs, GraphQL, Apollo Client, WebSockets, Orval
AI Agents driven development, PDF generation, Performance optimization (virtualization, memorization, code splitting)
I am a Senior Software Engineer with experience in multiple domains, including security, healthcare, B2B marketplaces, and nonprofit platforms, working in both startup and enterprise environments. I build and improve complex frontend applications using React 18, Next.js, Remix, Redux Toolkit, and Valtio, while also working with backend integration using Node.js, Express, REST, and GraphQL.
I have delivered large projects by creating new UI components, implementing business logic, refactoring legacy code, improving performance, and applying modern design systems and theming. I work closely with designers, backend engineers, and product teams to create responsive, accessible, and maintainable solutions.
I enjoy learning and applying modern technologies, solving problems across the full stack, and helping teams build better products efficiently.
Skills
Core Frontend: TypeScript, React 18, Next.js, Redux Toolkit
Frameworks: Next.js, Remix, Radix UI
Backend: Node.js, Express, MongoDB, MySQL, Mongoose, Sequelize, Prisma
State Management: Redux Toolkit, RTK Query, Valtio
Styling & UI: Tailwind CSS, SCSS, Styled-Components, Material UI, PrimeReact, Storybook
Forms & Validation: React Hook Form, Formik, Yup, Zod
Testing: Vitest, React Testing Library, Cypress, Playwright
Build & Tooling: Webpack, Turbopack, Vite, Bun, Docker, Git, ESLint, Lodash, Moment
APIs & Integration: REST APIs, GraphQL, Apollo Client, WebSockets, Orval
AI Agents driven development, PDF generation, Performance optimization (virtualization, memorization, code splitting)
Highlights
Recent ProjectsCodeMie (EPAM Systems)
AI-powered platform for intelligent software development assistants across the SDLC.
Responsibilities: Migrated and adapted components from Vue to React using agent-driven workflows, implemented new UI designs and visual updates, refactored components for updated design standards, added light/dark theming with Tailwind, bug fixing and improving performance.
Technologies Used: TypeScript, React 18, Vite, Vue, Tailwind CSS, PrimeReact, Valtio
Cyrebro (SD Solutions)
Advanced Security Operations Platform providing real-time insights for cyber events and business protection.
Responsibilities: Developed new pages/components and dashboard features including PDF reports and TV mode, rewrote Login and Users pages per Figma designs, refactored complex DatePicker and data tables with sorting, filtering, pagination, and column resizing; maintained overall code quality and performance.
Technologies Used: TypeScript, React 18, Redux Toolkit, SCSS, Styled-Components, Formik, Zod
HIPR – Histology Input Pathology Review (Foundation Medicine via EPAM Systems)
Medical platform optimizing pathology review processes for accurate and efficient diagnostics.
Responsibilities: Implemented new pages/components based on Figma designs, enhanced existing components, performed bug fixes, and refactored code to improve maintainability and performance.
Technologies Used: TypeScript, React 18, Vite, Remix, Redux Toolkit, Formik, Yup
Skills
React.js
TypeScript
Node.js
Redux Toolkit
Next.js
Remix.js
React Testing Library
MongoDB
Mongoose
MySQL
+ 4 more
Sequelize ORM
GraphQL/Apollo
Prisma ORM
Vite
Domains
Doesn’t consider: Dating, Gamedev
$1600
/ mo
NET
≈ $19200 /
year net
Flutter
·
2.5 years of experience
·
B2 - Upper Intermediate
·
Published
today
Ukraine, Lviv
·
Only remote
This year, I worked as a Flutter developer on a total of three projects. I've been implementing new features, conducting debugs, and communicating with the team. I have a mentor who conducts code reviews and helps me develop technically
Skills
Git
MySQL
Google Firebase
Json
OOP
REST API
Flutter
Dart
BLoC
Clean Architecture
+ 2 more
SOLID
SQLite
$1000
/ mo
NET
≈ $12000 /
year net
Fullstack
·
1 year of experience
·
C2 - Proficient
·
Published
today
Ukraine, Lviv
·
Office or remote
Coding since 5th grade. Started making games for friends. Now I build full-stack web apps.
I've spent 1000+ hours with LLMs. Openclaw, Custom tool chains, context management, AWS Bedrock. Prompt engineering and AI integration are where I'm strongest.
Chystolys.com — Founder & Developer
- Launched an ecommerce platform handling the full buyer journey
- Built a merchant dashboard with integrated AI for managing catalog entries
- Integrated Ukrainian payment and logistics infrastructure
I've spent 1000+ hours with LLMs. Openclaw, Custom tool chains, context management, AWS Bedrock. Prompt engineering and AI integration are where I'm strongest.
Chystolys.com — Founder & Developer
- Launched an ecommerce platform handling the full buyer journey
- Built a merchant dashboard with integrated AI for managing catalog entries
- Integrated Ukrainian payment and logistics infrastructure
Skills
Next.js
1.5y
Prompt Engineering
2.5y
AI/ML
2.5y
AWS
1y
TypeScript
2.5y
Node.js
2.5y
PostgreSQL
2.5y
Git
7y
$2500
/ mo
NET
≈ $30000 /
year net
MS Dynamics
·
3 years of experience
·
B2 - Upper Intermediate
·
Published
today
Ukraine, Lviv
·
Only remote
I am working as a Power Platform / Dynamics 365 Developer, mainly focused on building and supporting CRM solutions using Microsoft technologies. My primary stack includes Power Platform, Dynamics 365, Dataverse, Power Automate, Canvas Apps, C#, .NET plugins, JavaScript web resources, Azure Functions, and integrations with external systems.
On different projects, I worked on business process automation, custom CRM functionality, plugin and workflow development, data synchronization, and system integrations. I also have experience with data migration, production support, troubleshooting complex issues, and improving existing business processes.
I have worked with early bound models, DataverseContext, Azure Pipelines, CI/CD processes, and custom backend logic for enterprise CRM solutions. Recently, I have been involved in projects related to course and event management systems, booking flows, notification systems, and portal integrations.
In my current role, I participate in the full development lifecycle: from task analysis and communication with the team to implementation, testing, deployment, and support.
In the future, I would like to continue growing in the direction of enterprise architecture, integrations, Azure services, and more advanced backend development within the Microsoft ecosystem.
On different projects, I worked on business process automation, custom CRM functionality, plugin and workflow development, data synchronization, and system integrations. I also have experience with data migration, production support, troubleshooting complex issues, and improving existing business processes.
I have worked with early bound models, DataverseContext, Azure Pipelines, CI/CD processes, and custom backend logic for enterprise CRM solutions. Recently, I have been involved in projects related to course and event management systems, booking flows, notification systems, and portal integrations.
In my current role, I participate in the full development lifecycle: from task analysis and communication with the team to implementation, testing, deployment, and support.
In the future, I would like to continue growing in the direction of enterprise architecture, integrations, Azure services, and more advanced backend development within the Microsoft ecosystem.
Skills
Power Platform
3y
Web Development
1.5y
Azure services
3y
Certifications:
Microsoft Certified: Power Platform Functional Consultant Associate (Microsoft), Microsoft Certified: Power Platform Developer Associate (Microsoft)
$2000
/ mo
NET
≈ $24000 /
year net
In passive search
React.js
·
5 years of experience
·
B2 - Upper Intermediate
·
Published
today
Ukraine, Dnipro
·
Only remote
Played a significant role in the development of an innovative learning platform, implementing best practices with React.js (Redux), Next.js, and Typescript.
As a front-end developer, my experience is 5 years in top IT company. I had to write different interfaces for the projects I was involved in.
I've used best practices with React.js (Redux), Next.js, and Typescript.
For the last year, I have been working as a front-end engineer on a Cyber Security project based in the USA.
On most projects, I have been fortunate to work directly with the product owner from client's side. This allowed me to understand the meaning of this business well, helped me develop communication skills in this industry, mastered the skill of independent work with a lot of information and the ability to fix bugs quickly and to gather information better.
I had experience to create custom React hooks based on the project needs, set up testing configuration to gather coverage from all the necessary files.
My core experience is in JavaScript, React.js, Redux.js, TypeScript.
In my profile, you can see the stack I have dealt with in the past. The list is not strict and I will be glad to extend it if it needs for my future project success.
As a front-end developer, my experience is 5 years in top IT company. I had to write different interfaces for the projects I was involved in.
I've used best practices with React.js (Redux), Next.js, and Typescript.
For the last year, I have been working as a front-end engineer on a Cyber Security project based in the USA.
On most projects, I have been fortunate to work directly with the product owner from client's side. This allowed me to understand the meaning of this business well, helped me develop communication skills in this industry, mastered the skill of independent work with a lot of information and the ability to fix bugs quickly and to gather information better.
I had experience to create custom React hooks based on the project needs, set up testing configuration to gather coverage from all the necessary files.
My core experience is in JavaScript, React.js, Redux.js, TypeScript.
In my profile, you can see the stack I have dealt with in the past. The list is not strict and I will be glad to extend it if it needs for my future project success.
Looking for
I value working and learning alongside brilliant and talented individuals; good communication within the team, clear, and challenging tasks are particularly motivating for me. The main objective is to progress to a higher technical position, contributing to a solid and motivated team, with a strong emphasis on effective communication.
Skills
HTML5
CSS
JavaScript
React.js
TypeScript
Redux
Next.js
React Testing Library
Jest
REST API
+ 5 more
React Hooks
Material UI
Redux Toolkit
Zustand
React Query
$4000
/ mo
NET
≈ $48000 /
year net
In passive search
Golang
·
4 years of experience
·
B1 - Intermediate
·
Published
today
Ukraine, Kyiv
·
Office or remote
I worked on various projects, these were backend for websites, telegram bots (shops, Q&A, contest registrations, etc.) discord bots (community moderation, small shops), game plugins, I don’t sort through with work, there is a task, I almost always complete it
Skills
Golang
Git
Docker
Redis
MongoDB
MySQL
PostgreSQL
Microservices
Json
REST API
+ 5 more
NoSQL
Telegram Bot API
NATS
WebSockets
Web3
Domains
Domain experience: Fintech, Gamedev, Healthcare / MedTech, Education
$800
/ mo
NET
≈ $9600 /
year net
JavaScript
·
1 year of experience
·
B2 - Upper Intermediate
·
Published
today
Ukraine, Lviv
·
Office or remote
I have commercial experience in interface development. I have created both websites and mobile applications using React and React Native, utilizing modern technologies to create effective and user-friendly solutions.
Highlights
Contributed to commercial React Native apps, implementing core features.Improved user experience in existing mobile apps by optimizing rendering and state management (Redux Toolkit, Zustand).
Successfully collaborated in a team environment, delivering production-quality code under tight deadlines.
Continuously learning and applying modern technologies such as TypeScript, GraphQL, and Firebase to create scalable and maintainable applications.
Looking for
I plan to do front-end developing and all tasks that it includes.
Skills
Redux
0.5y
React Router
1y
SASS / SCSS
1y
React Native
1y
React.js
1y
JavaScript
1y
TypeScript
1y
HTML
1y
CSS
1y
HTML5
1y
+ 10 more
REST API
1y
MongoDB
0.5y
Express.js
Git
1y
Next.js
0.5y
JavaScript (ES6+)
1y
React Hooks
1y
Tailwind CSS
1y
Material UI
0.5y
Ant Design
0.5y
$2000
/ mo
NET
≈ $24000 /
year net
Python
·
2.5 years of experience
·
No English
·
Published
today
Ukraine, Kyiv
·
Only remote
PayForSay (InCust), B2B
(aiogram, django, asyncio, FastAPI, MySQL & SQLAlchemy)
11.2021 - 02.2023
- Designed a relational database scheme
- Developed asynchronous telegram bots with aiogram,
django, sqlalchemy
- Worked on the admin site with Django admin
- Developed API for store constructor logic
- Developed a client to integrate with third-party services
by interacting with their APIs, converting data to the
required format
- Written and Conducted migrations, managed service in
production
- Creating a user interface for bots
Legal Assistance, loan sector
(FastApi, MySQL PostgreSQL MsSQL & SQLAlchemy)
- Integrated third-party API to our client check system,
designed relational database scheme
- Developed numerous APIs (dashboards, credit history check etc) and web scrapers
- Refactored ~10k lines of flask + raw sql code to rewrite it with FastApi & sqlalchemy
- Worked on performance optimization of MS SQL with sqlalchemy queries, achieved 30%
improvement
(aiogram, django, asyncio, FastAPI, MySQL & SQLAlchemy)
11.2021 - 02.2023
- Designed a relational database scheme
- Developed asynchronous telegram bots with aiogram,
django, sqlalchemy
- Worked on the admin site with Django admin
- Developed API for store constructor logic
- Developed a client to integrate with third-party services
by interacting with their APIs, converting data to the
required format
- Written and Conducted migrations, managed service in
production
- Creating a user interface for bots
Legal Assistance, loan sector
(FastApi, MySQL PostgreSQL MsSQL & SQLAlchemy)
- Integrated third-party API to our client check system,
designed relational database scheme
- Developed numerous APIs (dashboards, credit history check etc) and web scrapers
- Refactored ~10k lines of flask + raw sql code to rewrite it with FastApi & sqlalchemy
- Worked on performance optimization of MS SQL with sqlalchemy queries, achieved 30%
improvement
Skills
aiogram
bash
Python