Middle Frontend Developer Job at Sigma Software Group (Brasília)

Middle Frontend Developer

Join Our Front-end Engineering Team! As we grow and take on exciting new challen...

Location

Salary:

Not provided

Mad Devs

Expiration Date

Until further notice

Requirements

2–3+ years of commercial frontend development experience
Strong JavaScript and TypeScript fundamentals
Solid React experience: components, props/state, hooks, forms, conditional rendering, lists
Ability to work in an existing large codebase
Ability to follow established architecture and coding patterns
Experience with REST API integration
Understanding of loading, error, and empty states
Experience with TanStack Query / React Query or similar tools
Basic understanding of client-side state management
Good HTML/CSS skills

Job Responsibility

Develop and maintain frontend features using React and TypeScript
Work inside an existing large-scale codebase following established architecture and code standards
Implement responsive UI based on Figma designs
Integrate frontend applications with REST APIs
Build and maintain dashboards, forms, tables, filters, and data-driven interfaces
Handle loading, error, and empty states correctly
Work with server-state management solutions such as TanStack Query / React Query
Write clean, readable, and maintainable code
Participate in code reviews and team collaboration
Fix bugs, improve usability, and support ongoing product development

What we offer

Flexible working hours
Remote-first culture
Long-term projects
Salary in dollars
Professional communities
Onsite business trips
Training budget
Paid conferences

Fulltime

Middle Frontend Developer

As a Middle Frontend developer you will be a part of Car Market team in QIC app....

Location

Qatar , Doha

Salary:

Not provided

QIC digital hub

Expiration Date

Until further notice

Requirements

Over 3 years of experience as a Frontend Engineer in our stack technologies
Proficient in Vue.js 3 and Nuxt 3
Strong understanding of JavaScript, TypeScript, HTML5, CSS3, and SСSS
English level B2 or higher

Job Responsibility

Develop user interfaces using Vue 3 and Nuxt 3, ensuring seamless performance across different devices and screen sizes
Work closely with UI/UX designers to transform design mockups into high-quality code
Work with backend developers to integrate frontend components with APIs and other services
Follow coding standards and best practices to produce code that is easy to understand and maintain

What we offer

Extra paid leave
Language classes
Meeting with experts
Professional development
QIC running club
Relocation support
Remote health insurance
Tax consultations
Travel discounts
USD, EUR, or AED salary payouts

Fulltime

Middle Frontend Developer

We are an IT company, JATAPP, creating products that are used by millions of use...

Location

Salary:

Not provided

JatApp

Expiration Date

Until further notice

Requirements

Experience with Vue.js 3 (Composition API) from 2 years
Deep understanding of reactivity, state management (Pinia/Vuex)
Experience with performance optimization (lazy loading, hydration, code-splitting)
Understanding of component architecture, Storybook, design system
Knowledge of HTML5, CSS3/SASS, responsive layout
Knowledge of TypeScript
Experience with Git flow, code review, pull request culture
Understanding of REST vs GraphQL, API versioning
Experience with analytics and integrations (3rd party SDK, payment gateways, PSP)
English B1

Job Responsibility

Development and support of web products and funnels with a focus on speed, conversion and stable operation
Building a flexible technical infrastructure that allows you to quickly launch new projects and test product hypotheses (ongoing process)
Integration with external services, analytical systems, AI
Optimization of performance, UX and technical stability of web solutions
Collaboration with product, analytical and marketing teams to build fast and measurable experiments

What we offer

Mental and Physical Health: health care is a must, so at JATAPP we will cover health insurance for you
Benefits Cafeteria: choose what you like most — sports, food delivery, home office supplies — and we will cover your expenses under available budget
Knowledge sharing: such events are our way to grow together. We gather to discuss new trends, share our own insights, and elevate one another
Remote-First Culture: it’s up to you whether to work remotely or at our coworking space
Personal Equipment Policy: no tech troubles — you’ll get a MacBook and everything you need for comfortable and efficient work
Learning and Development Opportunities: it's a real pleasure for us to watch you learn, so we're happy to cover your learning and development costs, as well as English courses.
Community of like-minded people: at JATAPP you will work in a team of like-minded people who are ready to launch a product, run a marathon, or climb Hoverla together
Creative freedom: we encourage initiative and creative thinking, so with us, you can be yourself and have the freedom of professional expression
Legal & Finance Support: we cooperate with the best financiers and lawyers who will be ready to help solve any of your questions upon request
Time-off Policy: 20 vacation days per year, 5 days for sick leave without medical confirmation, unlimited sick leaves with a doctor's note, 3 personal days, and 2 days off for special events or occasions

Fulltime

Middle Frontend Developer (Shopify)

We are an IT company, JATAPP, creating products that are used by millions of use...

Location

Salary:

Not provided

JatApp

Expiration Date

Until further notice

Requirements

Experience with Shopify and E-commerce platforms
Experience with Vue.js or React
Experience building and maintaining Shopify stores
Understanding of REST API and GraphQL
Experience with Liquid, TypeScript, HTML, and CSS
Experience integrating third-party services and working with APIs
Experience with Git and modern development practices
Ability to work independently and make decisions without constant oversight
Proactive mindset: willingness to suggest improvements, new approaches, and tools

Job Responsibility

Developing, maintaining, and scaling e-commerce stores built on Shopify
Implementing new features, integrations, and enhancements for the Shopify platform
Integrating inventory management systems, payment services, logistics solutions, and other e-commerce services
Working with Shopify APIs and integrations with internal systems and third-party services
Ensuring platform stability and compatibility with new Shopify updates
Developing and maintaining web products and marketing funnels
Collaborating with marketing, product, analytics, and design teams

What we offer

Health insurance
Benefits Cafeteria (sports, food delivery, home office supplies)
Knowledge sharing events
Remote-First Culture (work remotely or at coworking space)
Personal Equipment Policy (MacBook and necessary equipment)
Learning and Development Opportunities (cover learning costs and English courses)
Community of like-minded people
Creative freedom
Legal & Finance Support
Time-off Policy (20 vacation days per year, 5 days sick leave without medical confirmation, unlimited sick leave with doctor's note, 3 personal days, 2 days off for special events)

Fulltime

Middle Frontend Developer (Vue.js) Platform Team

We are looking for a Middle Frontend Developer (Vue.js) to join our company's Pl...

Location

Worldwide

Salary:

Not provided

JatApp

Expiration Date

Until further notice

Requirements

Experience with Vue.js 3 (Composition API) from 2 years
Deep understanding of reactivity, state management (Pinia/Vuex), router, SSR/Nuxt
Experience with performance optimization (lazy loading, hydration, code-splitting)
Understanding of component architecture, Storybook, design system
Knowledge of HTML5, CSS3/SASS, responsive layout
Knowledge of TypeScript
Experience with Git flow, code review, pull request culture
Understanding of REST vs GraphQL, API versioning
Experience with analytics and integrations (3rd party SDK, payment gateways, PSP)
English B1

Job Responsibility

Technical support for other product teams and new products
Building system solutions for centralized expertise
Building a flexible technical infrastructure that allows you to quickly launch new projects and test product hypotheses
Integrating with external services
Optimizing performance, UX, and technical stability of web solutions
Collaborating with product, analytics, and marketing teams to build fast and measurable experiments

What we offer

Health insurance
Benefits cafeteria (sports, food delivery, home office supplies)
Knowledge sharing events
Remote-first culture (remote or coworking)
MacBook and necessary equipment
Learning and development opportunities (courses, English courses)
Community of like-minded people
Creative freedom
Legal and finance support
20 vacation days per year

Fulltime

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

Ruby on Rails Middle Developer

We are looking for experienced developers that are willing to solve complex tech...

Location

Salary:

Not provided

Itransition

Expiration Date

Until further notice

Requirements

1+ years of experience in IT
Experience in Ruby on Rails development
Experience with databases (SQL or NoSQL)
English language level should be sufficient for written communication

What we offer

Projects for such clients as PayPal, Wargaming, Xerox, Philips, adidas and Toyota
Career development system with clear skill qualifications
Competitive compensation that depends on your qualification and skills
Flexible working hours
Options to work remotely
Compensation for medical expenses
English courses online
Internal conferences, workshops and meetups for learning and experience sharing
Gym membership compensation
5 days of paid sick leave per year with no obligation to submit a sick-leave certificate

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

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Middle Frontend Developer

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