Middle Frontend Developer Job at Sigma Software Group (Brasília)

Middle front-end developer

Looking for a skillful front-end developer

Location

Ukraine , Lviv

Salary:

Not provided

UPQODE

Expiration Date

Until further notice

Requirements

2+ years of relevant front-end development experience
2+ years of experience with JavaScript (ES6+)
Knowledge of React is a must
Fluent user of jQuery and\or analogs
Strong knowledge of HTML5 and CSS3
Proficient in front-end frameworks, specifically Bootstrap
Responsive and cross-browser development
Proficient in SASS, Gulp, BEM, Git, Nunjucks
Excellent communication, prioritization, and time-management skills
Intermediate English

Job Responsibility

Conversion of PSD and Sketch mockups to FrontEnd
HTML development for WordPress
WordPress themes development (HTML, Shortcodes)
Custom WordPress Development projects from scratch
Custom WordPress Development of existing projects
Cooperate in a SCRUM team with developers and other units (QA, Back-end, Design, Support, etc.)
Support the existing code, fix bugs

What we offer

Challenging tasks, professional growth opportunities, and mentorship
Competitive salary (reviewed regularly)
Paid vacation, paid sick leave
Health insurance
Cozy office located near Forum Lviv
Free English courses
Comfortable office in the center of Lviv
Cool team and corporate events

Full-Stack Middle Developer

We are looking for a Middle Full-Stack Developer. This role involves designing a...

Location

Salary:

Not provided

Itransition

Expiration Date

Until further notice

Requirements

2+ years of experience in IT
Knowledge of PHP 7-8.1 and JavaScript
Experience with any PHP frameworks (Symfony, Laravel, Yii, etc.)
Experience with Frontend development (HTML 5, JavaScript / TypeScript, React/Vue, etc.)
Knowledge of MySQL or other RDBMS, NoSQL solutions
Excellent command of the Git
English level – B2-C1

Job Responsibility

Designing and developing scalable solutions
Mix of frontend (around 50%) and backend (50%) tasks

What we offer

Projects for such clients as PayPal, Wargaming, Xerox, Philips, Adidas and Toyota
Competitive compensation that depends on your qualification and skills
Career development system with clear skill qualifications
Flexible working hours aligned to your schedule
Options to work remotely
Corporate medical insurance covering services of private and public medical centers
English courses online
Corporate parties and events for employees and their children
Internal conferences, workshops and meetups for learning and experience sharing
Gym membership compensation

Senior / Middle+ React Engineer (with Java Experience)

Dinarys GmbH is looking for a Senior/Middle+ React Engineer with Java experience...

Location

Salary:

Not provided

Dinarys GmbH

Expiration Date

Until further notice

Requirements

Strong commercial experience with React and modern frontend ecosystems
Solid experience with Java and Spring Boot in production environments
Understanding of full-stack application architecture and REST APIs
Experience working with AWS and Kubernetes
Ability to work independently, take ownership, and contribute to product evolution
Upper-Intermediate English or higher

Job Responsibility

Design, develop, and maintain complex frontend features using React
Take ownership of frontend architecture and contribute to technical decisions
Develop and support backend services using Java and Spring Framework
Integrate frontend applications with RESTful backend APIs
Ensure high performance, scalability, and maintainability of the platform
Participate in code reviews, architecture discussions, and technical improvements
Collaborate closely with Product, Design, and Engineering teams

What we offer

Strong engineering culture and open communication inside the team
Supportive management that encourages initiative and ownership
Transparent workflows: clear expectations, responsibilities and feedback

Fulltime

Middle React Engineer

N-iX is seeking a talented and experienced Middle React Engineer to join our dyn...

Location

Poland

Salary:

Not provided

N-iX

Expiration Date

Until further notice

Requirements

Solid experience (4-5+ years) in developing web applications using React
Proficiency in TypeScript for building scalable and type-safe applications
Familiarity with GraphQL and its implementation in frontend applications
Excellent understanding of web technologies such as HTML5, CSS3, and JavaScript
Strong problem-solving and analytical skills, with the ability to quickly identify and resolve issues
Good communication skills and the ability to work collaboratively in a team environment
Ability to adapt and learn new technologies and frameworks as required
Accessibility tools

Job Responsibility

Develop robust and scalable web applications using React, TypeScript, Redux, GraphQL, and styled-components
Collaborate with the design and product teams to translate wireframes and mockups into functional components
Implement responsive designs and ensure cross-browser compatibility
Write clean, maintainable, and efficient code using best practices and coding standards
Conduct code reviews and provide constructive feedback to improve code quality and maintain consistency
Optimize application performance and identify areas for improvement
Work closely with backend developers to integrate frontend components with the server-side infrastructure
Troubleshoot and debug issues, addressing bugs and performance bottlenecks
Stay updated with the latest frontend development trends and technologies, sharing knowledge and insights with the team

What we offer

Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits

Middle .Net Developer

At LeverX, we have had the privilege of delivering over 950 projects for various...

Location

Salary:

Not provided

LeverX

Expiration Date

Until further notice

Requirements

3+ years of experience in .NET (C#) and ASP.NET Web API development
Good knowledge of OOP, SOLID principles, and design patterns
Proficiency in SQL databases: SQL Server, PostgreSQL
Experience with NoSQL databases: MongoDB, CosmosDB, or similar
Experience with Git, CI/CD pipelines, and Azure cloud services (Azure Functions, Service Bus, AKS, etc.)
Familiarity with frontend technologies
English B2+

Job Responsibility

Develop, maintain, and optimize web applications and APIs using .NET
Design and implement solutions using Azure services and Kubernetes
Collaborate with cross-functional teams, including DevOps, QA, and UI/UX
Ensure application performance, scalability, and security best practices
Participate in code reviews, architecture discussions, and technical decision-making
Write and maintain unit and integration tests
Troubleshoot and resolve production issues efficiently

What we offer

Projects in different domains: healthcare, manufacturing, e-commerce, fintech, etc.
Projects for every taste: Startup products, enterprise solutions, research & development initiatives, and projects at the crossroads of SAP and the latest web technologies
Global clients based in Europe and the US, including Fortune 500 companies
Employment security: We hire for our team, not just a specific project. If your project ends, we will find you a new one
Healthy work atmosphere: On average, our employees stay with the company for 4+ years
Market-based compensation and regular performance reviews
Internal expert communities and courses
Perks to support your growth and well-being

Middle React Developer

We are looking for a React Developer to join our team and work on a web applicat...

Location

Ukraine

Salary:

Not provided

Codebridge

Expiration Date

Until further notice

Requirements

2+ years of experience with JavaScript / TypeScript
Good experience with React (components, hooks, state management)
Solid knowledge of HTML5 and CSS
Some experience with Redux or other state management tools
Understanding of REST APIs and frontend-backend interaction
Experience working with Git in a team environment
Ability to use AI tools (ChatGPT, Copilot, etc.) to improve development productivity
Ability to work independently on tasks and meet deadlines
Willingness to learn and improve technical skills
Upper-Intermediate level of English

Job Responsibility

Develop and maintain web interfaces using React
Build and maintain reusable, scalable UI components
Improve, support, and refactor existing web applications
Fix UI bugs and implement functional enhancements
Collaborate with developers, designers, and product owners to deliver features
Follow design guidelines, technical requirements, and best practices
Participate in code reviews and contribute to code quality
Take part in team meetings and technical discussions

What we offer

Collaborative Environment: Join a team that values collaboration, creativity, and mutual respect
Career Growth: Performance reviews and constructive feedback
Generous Time Off: 20 paid vacation days and 15 sick leave days annually
Professional Development: We support your growth by compensating for courses, certifications, and other educational opportunities
Flexible Work Options: Work remotely from the comfort of your home or join us in our modern Kyiv office

Middle React Developer

We are looking for a React Developer to join our team and work on a web applicat...

Location

Ukraine

Salary:

Not provided

Codebridge

Expiration Date

Until further notice

Requirements

2+ years of experience with JavaScript / TypeScript
Good experience with React (components, hooks, state management)
Solid knowledge of HTML5 and CSS
Some experience with Redux or other state management tools
Understanding of REST APIs and frontend-backend interaction
Experience working with Git in a team environment
Ability to use AI tools (ChatGPT, Copilot, etc.) to improve development productivity
Ability to work independently on tasks and meet deadlines
Willingness to learn and improve technical skills
Upper-Intermediate level of English

Job Responsibility

Develop and maintain web interfaces using React
Build and maintain reusable, scalable UI components
Improve, support, and refactor existing web applications
Fix UI bugs and implement functional enhancements
Collaborate with developers, designers, and product owners to deliver features
Follow design guidelines, technical requirements, and best practices
Participate in code reviews and contribute to code quality
Take part in team meetings and technical discussions

What we offer

Collaborative Environment: Join a team that values collaboration, creativity, and mutual respect
Career Growth: Performance reviews and constructive feedback
Generous Time Off: 20 paid vacation days and 15 sick leave days annually
Professional Development: We support your growth by compensating for courses, certifications, and other educational opportunities
Flexible Work Options: Work remotely from the comfort of your home or join us in our modern Kyiv office

Fulltime

Middle React Developer

We are looking for a React Developer to join our team and work on a web applicat...

Location

Ukraine

Salary:

Not provided

Codebridge

Expiration Date

Until further notice

Requirements

2+ years of experience with JavaScript / TypeScript
Good experience with React (components, hooks, state management)
Solid knowledge of HTML5 and CSS
Some experience with Redux or other state management tools
Understanding of REST APIs and frontend-backend interaction
Experience working with Git in a team environment
Ability to use AI tools (ChatGPT, Copilot, etc.) to improve development productivity
Ability to work independently on tasks and meet deadlines
Willingness to learn and improve technical skills
Upper-Intermediate level of English

Job Responsibility

Develop and maintain web interfaces using React
Build and maintain reusable, scalable UI components
Improve, support, and refactor existing web applications
Fix UI bugs and implement functional enhancements
Collaborate with developers, designers, and product owners to deliver features
Follow design guidelines, technical requirements, and best practices
Participate in code reviews and contribute to code quality
Take part in team meetings and technical discussions

What we offer

Collaborative Environment: Join a team that values collaboration, creativity, and mutual respect
Career Growth: Performance reviews and constructive feedback
Generous Time Off: 20 paid vacation days and 15 sick leave days annually
Professional Development: We support your growth by compensating for courses, certifications, and other educational opportunities
Flexible Work Options: Work remotely from the comfort of your home or join us in our modern Kyiv office

Middle Frontend Developer

Sigma Software Group

Location:
Brazil , Brasília

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
March 13, 2026

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