Jobs JavaScript / Front-End

Who are we looking for?

We are looking for a developer who is ready to join our team and start working together on our projects.

Tasks?

Your tasks will focus on the skills and expectations listed below and the use of new approaches and technologies.

Why did the job open?

We want to invite a new specialist to the company's staff due to the increase in the number of projects.

Skills:

• 2+ years of JavaScript experience;
• 1+ years experience with TypeScript;
• 2+ years of experience with React and React Native;
• Introduction to Google Play Console and App Store Connect;
• Acquaintance with modern methods and tools for building front-end applications;
• Experience with REST;
• Experience with Redux/Mobx or other state management libraries;
• Ability to communicate well with process participants and team members related to business requirements;

• English level - Intermediate+ (written and spoken).

   

Will be an advantage:

• Experience writing unit tests for front-end components;
• Experience with Flipper debug tool;
• Experience with Expo;
• Experience with App Center and CodePush;
• Experience with GraphQL;
• Experience with other JS frameworks Vue/Angular etc.;
• Experience with Node.js;
• Experience in using agile methodologies and principles;

• Experience working with an international team.

   

What do we expect from you?

• Self-organization and independence in work;
• Attention to detail;
• Constant learning.

Company
The company’s core focus is lead generation in the iGaming domain, primarily through SEO-driven solutions. They work with long-term client projects and are currently expanding their internal development team.

Position
We are looking for a Lead / Senior Full-Stack Engineer(PHP/Wordpress/JS) to join an established front-end team. The role requires a senior-level engineer who can take ownership of complex tasks, contribute to technical decisions, and support overall code quality.

Full-time, long-term cooperation

Location
Remote
Candidates must be located within the EU time zone

Language
English – sufficient for regular communication with the team

Experience
5–10 years of commercial development experience

Team & Projects
You will join a stable, long-term team working on multiple client projects focused on lead generation platforms. The team already includes several front-end developers, and we are looking for a more senior specialist who can take ownership of complex tasks and support overall technical quality.

Tech Stack

• PHP (Symfony)
• WordPress
• JavaScript
• HTML / CSS

Key Requirements

WordPress (advanced level)

• Experience building complex WordPress-based systems (beyond simple blogs)
• Hands-on experience with WordPress Multisite
• Custom plugin development using:
  • Object-Oriented Programming
  • Composer / autoloading
  • Typed properties and variables
  • Custom database tables
• Experience creating custom caching solutions for high-performance systems
• Strong experience with WP_Query for complex queries
• Experience building custom tools to improve the WordPress developer or admin experience

PHP

• 5+ years of experience with modern PHP (8+)
• Experience with phpcs / phpcbf
• Experience defining custom sniffs or working with PHPParser / AST
• Experience with reflection and introspection
• Solid understanding and practical use of DTOs and Value Objects

General

• Experience working with Core Web Vitals and performance optimization

Start Date
ASAP

The role

As a Front-End Intern, you will support the development of clean, responsive, and user-friendly interfaces for our AI-driven platforms. You’ll work with front-end engineers and designers to build UI components, improve user experience, and learn modern development practices using React and Next.js.

This internship gives you hands-on experience turning product ideas into functional, polished interfaces used by our global B2B clients.
 

Requirements

• Currently pursuing a degree in Computer Science, Information Assurance, or a related field
• Basic knowledge of HTML, CSS, JavaScript
• Familiarity with React or another modern framework
• Interest in UI/UX and responsive design
• Strong attention to detail and willingness to learn
• Passion for front-end development
   

Responsibilities

• Assist in building and maintaining UI components in React and Next.js
• Contribute to responsive, accessible, and performant interfaces
• Work with designers to implement mockups and prototypes
• Help integrate front-end features with APIs
• Participate in documentation, code reviews, and team discussions
   

About HelloBiome

HelloBiome is an innovative B2B biotech startup at the forefront of AI-powered microbiome innovation. We are dedicated to revolutionizing consumer health by leveraging the microbiome. Through democratizing access to microbiome data, HelloBiome utilizes advanced AI technologies to develop targeted health solutions, transforming these insights into commercial applications for our business clients. Trusted by over 20 clients, including industry giants like Unilever, we are not just predicting the future of consumer health; we are actively shaping it. At HelloBiome, every step we take is towards a healthier future, optimizing well-being one microbiome at a time.
 

Our Culture

At HelloBiome, we thrive in a globally connected, remote work environment with team members distributed across Europe, the US, Canada, and Korea. Our headquarters are in San Francisco and Our dynamic and international team embodies a culture of kindness paired with a drive for innovation and excellence. We value proactive individuals who bring a self-starter mindset to their roles, always seeking new ways to advance our mission. Attention to detail is crucial in our work, as we are committed to delivering precise and impactful health solutions to our B2B clients.

This remote and flexible work structure not only fosters a diverse and inclusive atmosphere but also encourages a balance between personal growth and professional excellence. Join us and be part of a team that is shaping the future of consumer health through groundbreaking AI-powered microbiome innovation.

About Company

AIstats is an innovative ecosystem of football products that combines cutting-edge big data analysis and computer vision technology. We are a fast-growing team of 40+ people based in Poland. Recently, we secured investments from Google executives and leading mobile company founders, which helped us increase our company’s value fourfold in the past year.

Our mission is to deepen fans' understanding of football and create new opportunities for professionals to analyze matches with precision, speed, and scale.

Our Products

• AIstats Mobile App – a consumer platform for football fans and bettors with over 100K monthly active users.
• AIstats Business Solutions – pro-level analytics tools powered by machine learning and computer vision, built for clubs, scouts, and agents.

Mission

Drive the development of a world-class web experience for AIstats’ next-generation football intelligence platform — powered by proprietary Computer Vision and 3D tracking technologies. Your mission is to transform this breakthrough data into fast, intuitive, and scalable user-facing products that accelerate revenue growth, strengthen retention, and position AIstats as the industry leader in modern football analytics. By building a robust and high-performance frontend foundation, you will directly contribute to achieving $1M annual revenue with 30% ROMI, 3× stronger user retention, and laying the groundwork for scaling the platform to $10M ARR.

Outcomes (3–6–12 months)

Within 3 months

• Deploy the web platform locally and set up the development environment.
• Fully review and understand the existing Vue/Nuxt architecture, API integrations, and mobile app dependencies.

• Identify and propose improvements in SSR stability, performance, and state management.

   

   

  Within 6 months

• Deliver stable, production-ready features built with Nuxt 4, Vue 3, TypeScript, and Tailwind.
• Achieve measurable improvements in performance (LCP, TTI), hydration stability, and UX consistency.
• Implement secure multi-provider authentication via Firebase and real-time features using Socket.io.
   

Within 12 months

• Establish the web platform as a reliable growth channel that contributes meaningfully to revenue and retention.
• Build a scalable architecture that supports rapid experimentation and analytics-driven iteration.
• Ensure a robust, maintainable frontend codebase aligned with long-term product and revenue goals.

Requirements

• 3+ years of production experience with Vue.js and Nuxt (Nuxt 3/4 preferred).
• Deep understanding of Vue 3 Composition API, SSR, hydration, and edge rendering.
• Strong proficiency with TypeScript and modern JavaScript (ES2015+).
• Hands-on experience with Vite and Node.js in SSR environments.
• Expertise in Pinia, composables, and scalable state management patterns.
• Strong skills in building responsive UIs with Tailwind CSS.
• Experience with Firebase Authentication and browser storage (localStorage, cookies).
• Familiarity with Socket.io or native WebSockets.
• Ability to independently drive development in a remote, fast-paced environment.

English proficiency at B1 (Pre-Intermediate) or higher.

Core Technologies (Optional)

• Vue 3, Nuxt 4, TypeScript
• Tailwind CSS, PostCSS
• Pinia, Vue Composables
• Vite, Node.js
• Firebase (Auth, Messaging, Remote Config)
• Socket.io
• Amplitude, Adjust
• Stripe / RevenueCat
• CI/CD pipelines

What we offer

• Fully remote work format and flexible working hours.
• Competitive salary pegged to USD.
• 24 days of paid vacation and 15 additional paid days off (including sick leave, personal days and corporate holidays)
• A friendly communication culture, rapid product cycles, and transparent processes.
• Dynamic work environment with a team passionate about sports and technology.
• Opportunities for professional development and career growth.
• No micromanagement — just trust, ownership, and freedom to experiment.

• Mentorship and high-quality engineering feedback.

   

Join our team and help drive innovation in the football industry!

The Software Engineer is a hands-on developer and is responsible for creating software solutions that will help grow as a business. Use your talent to innovate and transform complex concepts into clean, simple solutions. Determine operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions.

Business we build solutions for is an office supply retailing company which employs about 38,000 associates and operates 1,400 retail stores, e-commerce sites and a business-to-business sales organization. Across the job areas of retail, sales, supply chain and corporate, the company makes transformation of their product to the new level.

Main responsibilities:

• Write well-documented, highly maintainable and performing code, with appropriate test coverage
• Investigate and resolve application issues, bottlenecks and inefficiencies
• Demonstrate in-depth experience with e-Commerce and web application technologies, especially in the areas of writing high performance, reliable and maintaining code
• Conduct and participate in code reviews that span multiple languages and applications
• Supports and develops software engineers by providing advice, coaching, and feedback as well as conducting design sessions, assisting in code deployments and day-to-day operations
• Regularly dive into architecture, code, test plans, project plans, etc.
• Participate in Agile Ceremonies to provide feedback and communicate issues/blockers and communicate project status.

Requirements:

• Excellent 'vanilla' modern (ES2015+) JavaScript skills (essential)
• Excellent SASS/CSS skills (essential)
• Excellent HTML skills (essential), ideally with JSTL knowledge
• Knowledge of web security
• Knowledge of accessibility standards
• Knowledge of testing front-end work, both in-browser and code-based (such as Jest)
• Knowledge of responsive design
• Knowledge of build tools, such as Webpack
• Knowledge of GIT
• Standard 'ways of working' knowledge, such as conducting code reviews, working in an Agile team etc.
• Upper-intermediate level of English

A leading FinTech company specializing in secure online payment gateway solutions and financial transaction processing, is looking for an experienced Senior Web Front-End Developer with a strong PHP background to join our development team.
 

The company provides advanced payment processing infrastructure for thousands of businesses, enabling secure, scalable, and high-availability online payment services. Our systems operate in a high-volume transaction environment and adhere to strict security and compliance standards required for financial platforms.
 

In this role, you will lead the development of modern web interfaces that support our payment management platforms, merchant portals, and internal financial systems. You will work closely with backend developers, product managers, and UX designers to build secure, performant, and scalable web applications that integrate with complex payment APIs and financial services.
 

The ideal candidate combines deep expertise in modern front-end technologies with solid experience working with PHP-based backend environments, RESTful APIs, and distributed systems. Experience working in FinTech, payment processing platforms, or PCI-compliant environments is a strong advantage.

Key Responsibilities

• Design and develop high-performance, scalable web applications for financial and payment platforms.
• Implement modern front-end architectures using frameworks such as React, Vue.js, or Angular.
• Integrate front-end components with RESTful APIs and backend microservices.
• Collaborate with backend engineers working in PHP-based systems to ensure seamless integration.
• Build responsive and user-friendly interfaces for merchant dashboards, payment management portals, and financial tools.
• Optimize applications for performance, scalability, and cross-browser compatibility.
• Ensure applications follow security best practices required in financial systems.
• Participate in architecture discussions and technical design decisions.
• Conduct code reviews and ensure adherence to coding standards and best practices.
• Troubleshoot and resolve frontend performance and integration issues.
• Mentor junior developers and contribute to the technical growth of the team.

Required Qualifications

• 5+ years of experience in professional web front-end development.
• Strong expertise in:
  • HTML5
  • CSS3 / SCSS
  • JavaScript (ES6+)
• Experience with modern front-end frameworks such as:
  • React
  • Vue.js
  • Angular
• Strong experience integrating with REST APIs.
• Solid understanding of PHP backend environments.
• Experience working with Git-based version control systems.
• Knowledge of responsive design and mobile-first development.
• Experience with debugging tools and performance optimization techniques.
• Understanding of web security concepts, including:
  • XSS
  • CSRF
  • Authentication and session management.

Preferred Qualifications

• Experience with TypeScript.
• Familiarity with modern frontend build tools such as Webpack, Vite, or npm-based workflows.
• Experience with PHP frameworks such as Laravel or Symfony.
• Familiarity with microservices architecture.
• Experience with CI/CD pipelines and automated deployments.
• Familiarity with financial systems, payment gateways, or transaction processing platforms.
• Understanding of PCI-DSS compliance requirements for payment systems.

Soft Skills

• Strong problem-solving and analytical thinking.
• Ability to work effectively in a fast-paced agile environment.
• Excellent communication and collaboration skills.
• Ability to lead technical discussions and mentor team members.
• High level of ownership and accountability for delivered solutions.

Delasport — Implementing Technological Solutions Here and Now.

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are looking for the top talents to join our team in R&D centre in Kyiv.

RESPONSIBILITIES
 

• Collaborate with a team of developers to design, develop, and maintain high-quality web applications
• Implement user interfaces and application features based on defined business requirements
• Utilize modern front-end frameworks and libraries, such as React and Material-UI (MUI), to develop and integrate front-end components
• Apply object-oriented programming (OOP) principles to ensure the creation of clean and modular code
• Follow the SOLID, DRY, KISS, and YAGNI principles
• Participate in code reviews and provide feedback to improve overall code quality
• Troubleshoot and debug front-end issues to ensure optimal application performance
• Collaborate with cross-functional teams to gather requirements and contribute to the design and implementation of new features
   

REQUIREMENTS
 

• At least 1 year experience in WEB development
• Strong understanding of JavaScript, React, React Hooks, TypeScript, and Redux
• The presence of a portfolio (e.g., active Git profile or example of previous test tasks)
• Solid knowledge of object-oriented programming (OOP) principles and their practical application
• Understanding and application of the SOLID, DRY, KISS, and YAGNI principles in code development
• Experience in writing unit tests
• Strong problem-solving and analytical skills
• Attention to detail and ability to write clean and maintainable code
• Good communication skills and ability to work effectively in a team
• Enthusiasm for learning and staying up-to-date with new technologies and best practices
• Upper-Intermediate English level (both speaking and writing)
   

NICE TO HAVES
 

• Familiarity with front-end libraries and frameworks such as Material-UI (MUI), React Hook Form and Redux Toolkit
• Knowledge of MVC architecture
   

WHAT WE CAN OFFER YOU
 

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

UAPP.AI  is an AI-focused product IT company founded in 2018 that specializes in creating, launching, and monetizing mobile applications and web products with over 10 million combined installs for global markets. 

We create our own products & apps — design, build, monetise, and scale them to millions of users worldwide.

Now we are looking for a Front-End Developer to join our team and work on the development&launching  of new subscription-based digital products. The role involves building interactive features, ensuring cross-browser compatibility, optimizing performance, and collaborating with backend teams.

Key Responsibilities

• Feature Development: develop, test, and ship secure UI components for subscription flows, including checkout pages, payment gateways and user account management.
• User experience (UX): ensure seamless, responsive, and accessible (WCAG compliant) interfaces across mobile and desktop devices.
• Optimization: improve conversion and retention rates through UI/UX refinements, code optimization, and performance improvements.

• Collaboration: Work with designers and product managers to translate wireframes into code, and collaborate with backend engineers to integrate API services.

   

Required Skills and Qualifications:

• Technical proficiencies: Strong expertise in JavaScript/TypeScript, HTML5, CSS3, and modern frameworks (like React).
• API Integration: Experience connecting front-end applications with RESTful APIs or GraphQL.
• Performance Optimization: Knowledge of frontend performance testing and optimization techniques.
• Experience: Proven track record of shipping production-level code, often requiring 2+ years of experience.
• Tools: Familiarity with testing frameworks (e.g., Jest, Cypress) and version control (Git).

We offer:

• Competitive salary
• Remote
• Opportunities for professional growth and development
• A dynamic and fast-growing team environment
• The ability to make a real impact on the product and see tangible results.

About Flamingo

Flamingo is revolutionizing the Managed Service Provider (MSP) industry with an AI-driven, open-source platform for IT and security. Our goal is to empower MSPs with automation, optimization, and scalability tools to enhance their operations.

Role Overview

As a Front-end Engineer at Flamingo, you’ll play a key role in building the core user experience and backend logic behind our AI-powered platform. 

This is a hands-on engineering role where you’ll collaborate with product designers, DevOps, and fellow engineers to ship quickly, iterate often, and build systems that scale.

Key Responsibilities

• Build and maintain core product features using React and TypeScript
• Integrate with REST and GraphQL APIs and collaborate with backend engineers on API design
• Translate product and design specs into high-quality, user-centric interfaces
• Ensure performance, accessibility, and responsiveness across modern browsers
• Collaborate closely with the design team to evolve and maintain our design system
• Write clean, modular, well-tested code and contribute to code reviews
• Participate in system architecture discussions and technical decision-making
• Work with DevOps to ensure smooth deployment and observability of services

Qualifications

Must-Have:

• 5+ years of experience in front-end development
• Strong proficiency with React and TypeScript
• Solid understanding of modern frontend architecture, component design, and state management (e.g., Redux, Zustand, etc.)
• Strong understanding of web standards, performance, and responsive design
• Familiarity with database design and usage (SQL and/or NoSQL)
• Experience integrating APIs and working with REST and/or GraphQL
• Strong understanding of version control and collaboration workflows using Git

Nice-to-Have:

• Understanding of microservices / event-driven architecture
• Experience with Node.js backend frameworks (NestJS/Express)
• Familiarity with authentication protocols
• Experience with server-side rendering and performance optimization
• Exposure to infrastructure tools (Docker, Kubernetes, CI/CD workflows)
• Understanding of accessibility and internationalization best practices

Why Join Flamingo?

• High-impact role: As a front-end engineer, you’ll work across the entire product experience from backend architecture to the user interface, shaping how thousands of MSPs interact with our platform.
• Ownership & Equity: Competitive compensation and a meaningful equity stake in a high-growth, early-stage startup.
• Modern Tech Stack: Built with React, Node.js, and open-source tools, all in a scalable microservices architecture.
• Remote-first Culture: Work from anywhere and collaborate with a team of senior engineers, designers, and product leaders.
• Mission-Driven Team: Be part of a company that’s redefining how IT and security services are delivered, making powerful automation tools accessible to all MSPs, not just the enterprise giants.

MX2.AI is an advanced AI-driven platform transforming the way businesses interact with artificial intelligence. We are focused on developing innovative, high-performance digital experiences powered by AI automation.

Role Overview

We are looking for a Front-End Developer to join our team and enhance the user experience of MX2.AI. The ideal candidate has expertise in modern front-end frameworks, a strong eye for UI/UX design, and a passion for building seamless, high-performance web applications.

Responsibilities

• Develop and optimize responsive, user-friendly web interfaces.
• Work with designers and back-end developers to create a seamless user experience.
• Implement dynamic and interactive UI components using React, Vue.js, or Next.js.
• Optimize front-end performance to ensure fast loading times and smooth navigation.
• Integrate APIs and work with real-time data visualization.
• Ensure cross-browser compatibility and mobile responsiveness.
• Stay updated with the latest front-end development trends and best practices.

• Implement dynamic and interactive UI components using Vue.js.

   

Requirements

• Proven experience as a Front-End Developer, preferably in AI or SaaS projects.
• Strong proficiency in Vue.js or Nuxt.js
• Experience with TypeScript, Tailwind CSS, and modern UI libraries.
• Understanding of RESTful APIs and WebSockets for real-time interactions.
• Strong knowledge of SEO-friendly front-end development.
• Experience with Git and CI/CD workflows.
• Creative problem-solving skills and attention to detail.

Nice to Have

• Experience with AI-driven platforms or machine learning applications.
• Knowledge of Three.js, WebGL, or data visualization frameworks.
• Familiarity with backend technologies (PHP, Laravel, Python) is a plus

What We Offer

• Remote, flexible work.
• Opportunity to work on cutting-edge AI-driven projects.
• Competitive compensation based on experience.
• A collaborative, fast-paced, and innovative team environment.

We are looking for a Frontend Developer (Strong Junior/Middle with 2+ years of experience) for a full-time position in the office.

Requirements:

- Strong knowledge of HTML, CSS, and JavaScript
- Experience with frontend frameworks/libraries such as React, Angular, Vue.js, or similar
- Understanding of application architecture, design patterns, OOP, and functional programming principles
- Experience with responsive and cross-browser layout
- Good grasp of adaptive and mobile-first design principles
- Understanding of REST API integration
- Experience writing tests (unit and e2e) and ensuring proper test coverage
- Experience with version control systems (e.g., Git)
- Understanding of website performance optimization and security best practices
- Ability and willingness to learn new technologies
- English proficiency – B1 level or higher

Will be a plus:

- Experience with WordPress, including custom theme and plugin development    
- Experience with UI frameworks (Bootstrap, Tailwind CSS, etc.)  
- Knowledge of build tools (Webpack, Vite, etc.)  
- Understanding of SEO best practices

We offer:

- Career and professional growth;
- Decent salary;
- Interesting projects in a professional team;
- Trainings, seminars, meetings and conferences at company expense;
- Pleasant and quite working atmosphere.

Web Flutter Developer (Remote)

We are looking for a Web (Flutter) Developer to join the company's digital team and help support and evolve web platforms. 

What you’ll do:

• Build and maintain Flutter Web applications
• Work with Dart, async programming, and RESTful APIs / JSON
• Implement the BLoC pattern and follow MVVM / Clean Architecture principles
• Write clean, readable, and maintainable code
• Collaborate with the team and participate in code reviews

Requirements:

• Have at least 1 year of commercial experience with Flutter on web development. Experience with Dart.
• Understanding of asynchronous operations and HTTP requests
• Strong willingness to learn and grow professionally
• Team-oriented mindset
• It would be nice if you have a conversational English level, but it is not mandatory.

What company offers:

• Fully remote, work from anywhere
• Opportunity to grow into a Middle/Senior role
• Supportive team and mentorship

Who you are:

• Curious, proactive, and enjoy solving problems
• Detail-oriented and take pride in getting things right
• Communicate clearly and work well with different teams
• Motivated to build a strong foundation and grow as a web professional

Nice to have (but not required)

• Basic knowledge of PHP, HTML, CSS, JavaScript
• Exposure to CMS platforms, performance basics, or SEO fundamentals
• Interest in analytics and measurement tools (e.g. GA4)

Personal projects on Flutter (Web) to share (GitHub, portfolio, university projects).

Panenco is a boutique software studio in Belgium and Ukraine. We build next-gen B2B SaaS products and enterprise AI solutions, always with an entrepreneurial spirit. We're a small team of the best and brightest, looking for 10x people who love to tackle challenging problems. We give you significant ownership and room to grow, expecting you to take charge and continuously evolve with the latest and greatest in our industry.
 

About the position

We’re always looking for passionate software engineers with strong computer science fundamentals to focus on front-end development with React and Typescript, creating outstanding user experiences across web & mobile. You'll become part of a dedicated product team working alongside some of the best and brightest people in our industry.
 

Technologies and required skills

You have an in-depth grasp of the the majority of the following technologies:

• Core Framework & Language
  • React: function components, hooks, composition patterns, controlled vs derived state, React Server Components (RSC)
  • Typescript: strong typing, generics, modern ES standards
  • Next.js: App Router, Server Components, Server Actions, routing concepts, SSR/SSG patterns
• API & Data Communication
  • REST: ability to interpret and interface with REST APIs
  • Type-safe APIs: understanding of end-to-end type safety concepts
• State Management
  • React Query (TanStack Query): hands-on experience with data fetching, caching, and synchronization
  • Zustand: understanding of lightweight state management patterns
  • React Context: shared state and avoiding prop drilling
• UI & Styling
  • Design systems and component libraries: shadcn/ui (primary), Radix UI, MUI, Ant, Atlassian UI
  • Styling: modern CSS with Tailwind CSS, CSS Modules, SCSS
  • Responsive layouts and cross-browser compatibility
• Forms & Validation
  • React Hook Form: form state management and validation
  • Zod: schema validation and type inference
• Testing & Quality
  • E2E testing: Playwright or Cypress
  • Understanding of test pyramid: unit, integration, and E2E testing strategies
  • CI integration: test automation in continuous integration pipelines
  • Code quality: focus on readability, maintainability, and reusability
• Build Tools & Module Bundlers:
  • Vite (widely used across our projects)
  • Webpack
  • Next.js build system: experience with Next.js build and development tooling
  • Module bundling concepts: understanding of modern bundling approaches
• Error Tracking & Observability
  • Sentry or similar tools for frontend error tracking and monitoring
  • Ability to interpret production errors and improve system reliability
• Security Fundamentals
  • Awareness of frontend security concepts: XSS, CSRF, secure handling of authentication tokens
  • Basic understanding of OWASP principles, permissions, secrets handling, and rate limiting (from a frontend perspective)
• Browser fundamentals
  • Event Loop, microtasks vs macrotasks, Web APIs (e.g. localStorage)
  • Performance: cross-browser behavior and client-side performance considerations
• Accessibility: WCAG awareness, keyboard navigation, screen readers, semantic HTML
• Language skills: solid reading and speaking skills in English
   

As a plus

• tRPC: experience with type-safe API communication and end-to-end type safety
• Turbopack: familiarity with Next.js Turbopack for faster development builds
• Virtualisation: hands-on experience with Docker and similar services
• Back-end knowledge: Node.js, Python, .NET, Next.js or other frameworks
• Cloud: practical experience with GCP, AWS or Azure
• Database: understanding of ORMs (Drizzle ORM) and database concepts
• Information security: an understanding of security standards
• React Native: experience with React Native for mobile development 
   

Locations

Remote work is our default.
We also have an office in Kyiv, and team members are expected to be available to work onsite there when needed.
 

We offer 
We offer a friendly, dynamic and inspirational working environment with a strong team that celebrates great engineering. During our bi-weekly software engineering labs sessions we share experiences from the various products that we're building. A fair compensation, office snacks and fun afterwork drinks are included of course!

The interview process

The interview process is short (but thorough) and will consist of 3 steps:

1. Technical interview: you present a personal project or one of your prior involvements from end to end, with our team asking targeted questions
2. Pair-Programming Session: you collaborate with one of our engineers on a practical task. We focus on problem-solving approach, communication, code structure, and how you reason about changes in real time.
3. Feedback: you will receive feedback about the technical conversation either in written form or through a call

We are looking for a skilled Frontend Developer with strong expertise in JavaScript, TypeScript, and Next.js to join our team. You will work on developing and maintaining modern web applications, implementing new features, and ensuring high-quality, responsive user interfaces.

Responsibilities:

• Develop and maintain web applications using Next.js
• Implement new features and improve existing functionality
• Ensure responsive and accessible UI using modern HTML/CSS practices
• Optimize application performance and code efficiency

Requirements:

• 2+ years of commercial experience with JavaScript (ES6+) and TypeScript
• Strong experience with Next.js, React
• Solid knowledge of HTML/CSS and responsive design principles
• Experience working with REST APIs
• Ability to deliver clean, maintainable code following best practices
• Experience with Git
• English — Upper-Intermediate or higher

Nice to have:

• Experience with Bootstrap or Tailwind CSS
• Payment integrations (e.g., Stripe or similar)
• Understanding of client–server communication
• Experience with React Native

Department/Project Description

Long-term project involving development of the Roku TV streaming application for an international broadcasting company headquartered in New York, US. The company owns several television channels/brands and would like to upgrade their existing Roku application.


Location - Lviv (hybrid mode)

Job Description

We're excited if you have

• Web development experience building high traffic, consumer-facing websites
• Good culture fit and excellent team player
• Good level knowledge of JavaScript
• Knowledge of the latest open standards and web technologies
• Ability to decompose complex problems into manageable units of work
• Excellent verbal and written communication skills.
• Understanding of React fundamentals

Bonus:

• Experience with ReactJS, Express, PageSpeed, SASS/LESS, AWS, Node.js 
• BS or MS degree in Computer Science or equivalent.

Job Responsibilities

What you'll be doing

• Build innovative features for the Roku streaming TV application
• Code, test, document and deliver features with cross-browser compatibility, accessibility
• Determine the strategic and tactical direction of the front-end architecture
• Participate in Agile development process, including scoping, technical design, estimation effort, coding, testing, debugging, code reviews, maintenance and support
• Collaborate with program managers, marketing, designers, software engineers in tests to build and enhance the UI
• Innovate and create the best user experience online