Jobs JavaScript / Front-End

About Us

We build and scale high-performance Shopify stores for serious e-commerce brands. We care about speed, conversion, clean architecture, and shipping fast.

We don’t want a “theme tweaker.”

We want a builder.

Someone who understands Shopify deeply, thinks in systems, and uses modern AI coding tools to move 10x faster than the average developer.

The Role

We’re looking for a Shopify Front-End Developer who:

• Knows Liquid inside-out
• Builds scalable, modular theme architectures
• Understands CRO and performance
• Uses AI coding tools like Cursor, Antigravity, or similar vibe coding environments to ship faster

You will work on:

• Custom Shopify themes (not just Dawn edits)
• Converting Figma designs into scalable Liquid sections
• Building reusable sections & metafield-driven components
• Improving site speed and technical SEO
• Implementing CRO tests & dynamic content blocks
• Building internal tooling that accelerates development

Required Skills

• Strong experience with Shopify (Liquid, metafields, theme architecture)
• Advanced HTML, CSS (SCSS), JavaScript
• Experience with Shopify 2.0 sections & JSON templates
• Performance optimization experience
• Experience working from Figma to production

• Experience using AI coding tools like:

  • Cursor
  • Antigravity
  • GitHub Copilot (minimum baseline)

   

Big Plus

• Experience with headless Shopify
• Understanding of CRO & A/B testing logic
• Experience building Shopify apps
• Familiarity with conversion tracking & data layers
• Experience working in fast-paced performance marketing environments

To Apply

Send us:

1. Shopify stores you’ve built (and explain what you did)
2. Your GitHub
3. A short explanation of how you use AI tools in your workflow
4. Your availability & expected monthly compensation

If you’re just applying everywhere with a generic message — we’ll know.

• Develop and maintain mobile app responsive, high-performance user interfaces using React Native and JavaScript.
• Build reusable components and front-end libraries for future use.
• Translate UI/UX designs and wireframes into high-quality, pixel-perfect React code.
• Manage state and data flow using tools such as Redux, Context API, Zustand, or Recoil.
• Ensure applications are optimized for performance and scalability, with efficient rendering and minimal load times.
• Integrate RESTful APIs or GraphQL endpoints for dynamic, data-driven interfaces.
• Implement client-side routing with React Router or similar libraries.
• Maintain cross-browser and cross-device compatibility for all UI components.
• Follow component-driven development principles to ensure modularity and maintainability.

We are seeking a skilled Regular - Senior Web Graphics Developer to join our team in the oil and gas industry. The ideal candidate will have extensive experience in developing advanced web-based visualizations and a deep understanding of industry standards. This role requires proficiency in HTML5 Canvas, Angular, RxJS, Angular Signals and NgRx along with a strong grasp of the graphics rendering pipeline. Additionally, the candidate should possess general cloud development skills and backend expertise, including microservices architecture and experience with AWS and Azure.

• Responsibilities:

  • Design, develop, and maintain interactive web-based visualization tools for oil and gas data.
  • Implement advanced graphics rendering techniques using HTML5 Canvas
  • Collaborate with geologists, engineers, and other stakeholders to understand visualization requirements and deliver effective solutions.
  • Ensure visualizations are optimized for performance and scalability.
  • Stay up-to-date with industry standards and best practices in web visualization and graphics rendering.
  • Integrate visualization tools with existing data management systems and workflows.
  • Develop and maintain backend services using microservices architecture.
  • Utilize cloud platforms such as AWS and Azure for deployment and management of visualization tools.
  • Provide technical guidance and mentorship to junior developers.

• Mandatory Skills Description:

  • 4+ years in Graphics development, with a strong emphasis on web-based Visualization applications and tools.
  • Proven experience in web-based visualization development, particularly in the oil and gas industry.
  • Strong proficiency in Angular 16+, RxJs, Angular Signals, NgRx
  • Strong proficiency in HTML5 Canvas
  • In-depth knowledge of the graphics rendering pipeline.
  • Proficiency in cloud platforms such as AWS and Azure.
  • Excellent problem-solving skills and attention to detail.
  • Strong communication and collaboration skills.
  • Ability to work independently and as part of a team.

• Nice-to-Have Skills Description:

  • Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
  • Spatial geometry thinking, basic math
  • Familiarity with Three.JS, Pixi.JS or WebGL is a plus.
  • Experience with backend development and microservices architecture.

This role focuses on developing and maintaining the frontend part of an integrated supply chain event platform. The application supports cross-enterprise logistics processes and helps users interact with data coming from multiple backend systems. As a Junior Frontend Engineer, you will work under the guidance of more experienced team members while gradually building strong frontend engineering skills.

Responsibilities

• Assist in developing and enhancing UI features using Angular under predefined guidelines
• Implement reusable UI components following established design and coding standards
• Integrate frontend components with backend REST APIs
• Fix bugs and support basic performance and usability improvements
• Participate in requirements discussions to better understand business and user needs
• Write and maintain basic unit tests
• Contribute to technical and user-facing documentation when required
• Work as part of a Scrum team and actively participate in Agile ceremonies
  
   

Requirements

• Up to 2 years of experience in frontend development (commercial or strong project-based experience)
• Basic knowledge of Angular, TypeScript, JavaScript, HTML, and CSS
• Understanding of component-based frontend architecture
• Basic experience working with REST APIs
• Familiarity with Git and collaborative development workflows
• Understanding of Agile / Scrum principles
• Willingness to learn, accept feedback, and grow professionally
• Upper-intermediate English level for everyday team communication

About Us:

We are an outsourcing company working on top-tier projects, ranging from large corporations to government departments. Our team is passionate, professional, and ready to welcome a responsible Frontend Developer with strong skills and a collaborative mindset.

Requirements:

• Commercial experience with React (functional components, hooks)
• Strong knowledge of TypeScript
• Experience with state management (Redux / React Query / Zustand)
• Integration with REST APIs (async logic, error handling)
• Experience with modern styling approaches (Styled Components / Emotion / Tailwind / SCSS)
• Understanding of UI performance optimization (memoization, lazy loading, code splitting)

Mandatory requirement:

Confident and effective daily use of Claude Code.

Nice to have:

• WebSockets / real-time data handling
• Unit testing (Jest, React Testing Library)

• Understanding of CI/CD and code review processes

   

Responsibilities

• Develop and maintain SPA frontend applications
• Build scalable and maintainable component architecture
• Integrate with APIs and implement client-side business logic
• Optimize performance and improve UX
• Write clean, well-structured TypeScript code
• Use Claude Code to accelerate development, generate boilerplate, refactor, and improve code quality

• Participate in code reviews and technical discussions

   

What to Expect from Our Process:

We keep our hiring process simple, focused. Here’s how it works:

1. Initial conversation + test

An intro call to get to know each other, discuss your background. We will also ask you to complete a test to assess the level of your theoretical knowledge.

2. Technical interview

A deep dive into your experience. 

3. Interview with CEO/COO

A final conversation focused on company vision and cultural fit. It’s also your chance to ask any big-picture questions.

What We Offer:

• Competitive salary based on experience.
• Friendly and cohesive team environment.
• Opportunities for professional growth and development.
• Flexible working hours and the possibility of remote work.
• Exciting projects with modern technologies.

Mandatory Skills:
  Minimum 2+ years of hands-on experience building production React applications - Strong knowledge of React fundamentals - hooks, component composition, state management patterns, performance considerations - Experience integrating with REST APIs and websockets: async flows, caching, pagination, optimistic updates, error handling - Solid JavaScript (ES6+) skills - Strong HTML/CSS skills - responsive layouts, cross-browser behavior, component-level styling, accessibility basics (WCAG-aware) - Experience with modern frontend tooling: bundlers/build systems, environment configs, package management - Ability to write and maintain tests (e.g., React Testing Library/Jest) and deliver changes safely - Experience debugging production issues using browser devtools, logs, and monitoring tools - Ability to work independently in a remote setup, manage time well, and communicate clearly and proactively - Comfortable collaborating in a PR-based workflow (Git), participating in code reviews, and following coding standards

Responsibilities:

  Build new features for SURE product surfaces (web app, admin portal, embedded widget/iframe experience)
- Implement pixel-accurate UI from designs, ensuring responsive behavior and solid accessibility basics
- Integrate frontend with backend APIs: data fetching, error handling, retries, loading states, and edge-case handling
- Develop reusable UI components and maintain a consistent style system across the product
- Optimize performance for real-world usage - rendering efficiency, bundle size, perceived performance, and smooth interactions
- Write and maintain automated tests for critical UI flows and support QA with clear repro steps
- Troubleshoot production UI issues, perform root-cause analysis, and deliver fixes with minimal regression risk
- Collaborate closely with Product, Design, and Backend teams- refine requirements, estimate work, and deliver iteratively
- Contribute to code reviews, documentation, and frontend best practices

Nice to have:
  Experience with embedded apps / widgets / iframes and cross-window communication patterns (postMessage, resizing, sandboxing) - Experience with authentication flows (SSO/OIDC) and role-based access UI (permissions, feature flags) - Familiarity with performance tuning: Lighthouse, bundle analysis, code splitting, lazy loading, memoization - Experience with component libraries/design systems and maintaining reusable UI kits - Familiarity with real-time UI patterns (websockets, streaming updates, chat-like interfaces) - Experience with frontend observability tools (Sentry, Datadog RUM, LogRocket) and analytics events tracking - Experience working in B2B SaaS or enterprise products (tables, filters, complex forms, multi-step flows) - Basic CI/CD awareness for frontend deployments (build pipelines, environment promotion, preview builds)

We are looking for a Middle Frontend Developer to join our team and contribute to the development of a modern, data-driven web platform. You will work on complex user interfaces, dashboards, and business workflows, collaborating closely with backend engineers, designers, and product managers to deliver stable, scalable frontend solutions.

Requirements:

• 3+ years of commercial experience in frontend development.
• Strong knowledge of JavaScript (ES6+) and TypeScript.
• Hands-on experience with React (Next.js as a plus).
• Experience with state management libraries (Redux / Redux Toolkit, React Query).
• Experience building data-driven interfaces (tables, dashboards, forms).
• Solid understanding of REST API integration and client-side data handling.
• Experience with modern styling approaches (SCSS, CSS Modules, Tailwind CSS).
• Understanding of component architecture and reusable UI patterns.
• Experience working in production environments and long-lived codebases.
• Basic experience with unit or component testing (Jest / React Testing Library).

• Experience with Git and collaborative development workflows.

   

Responsibilities:

• Develop and maintain frontend features using React and TypeScript.
• Build reusable and maintainable UI components.
• Implement complex business logic and client-side state management.
• Integrate frontend functionality with backend services via REST APIs.
• Work with data-heavy views, dashboards, and user workflows.
• Optimize UI performance and rendering behavior.
• Participate in code reviews and contribute to improving frontend architecture.
• Collaborate with designers and product managers to ensure consistent and user-friendly interfaces.

• Support continuous refactoring and modernization of existing frontend modules.

   

We offer:

• Competitive salary.
• Remote work format.
• Work on international, production-grade products.
• Salary tied to the dollar exchange rate.
• Opportunity to grow into a Senior Frontend role.
• Influence technical decisions and frontend architecture within the team.

Project Description:
We are seeking a skilled Regular - Senior Web Graphics Developer to join our team in the oil and gas industry. The ideal candidate will have extensive experience in developing advanced web-based visualizations and a deep understanding of industry standards. This role requires proficiency in HTML5 Canvas, Angular, RxJS, Angular Signals and NgRx along with a strong grasp of the graphics rendering pipeline. Additionally, the candidate should possess general cloud development skills and backend expertise, including microservices architecture and experience with AWS and Azure.
Responsibilities:
• Design, develop, and maintain interactive web-based visualization tools for oil and gas data.
• Implement advanced graphics rendering techniques using HTML5 Canvas
• Collaborate with geologists, engineers, and other stakeholders to understand visualization requirements and deliver effective solutions.
• Ensure visualizations are optimized for performance and scalability.
• Stay up-to-date with industry standards and best practices in web visualization and graphics rendering.
• Integrate visualization tools with existing data management systems and workflows.
• Develop and maintain backend services using microservices architecture.
• Utilize cloud platforms such as AWS and Azure for deployment and management of visualization tools.
• Provide technical guidance and mentorship to junior developers.
Mandatory Skills Description:
• 4+ years in Graphics development, with a strong emphasis on web-based Visualization applications and tools.
• Proven experience in web-based visualization development, particularly in the oil and gas industry.
• Strong proficiency in Angular 16+, RxJs, Angular Signals, NgRx
• Strong proficiency in HTML5 Canvas
• In-depth knowledge of the graphics rendering pipeline.
• Proficiency in cloud platforms such as AWS and Azure.
• Excellent problem-solving skills and attention to detail.
• Strong communication and collaboration skills.
• Ability to work independently and as part of a team.
Nice-to-Have Skills Description:
• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Spatial geometry thinking, basic math
• Familiarity with Three.JS, Pixi.JS or WebGL is a plus.
• Experience with backend development and microservices architecture.
Languages:
English: B2 Upper Intermediate

PLEASE NOTE that we are searching for candidates who are located in Lviv/Kyiv and are able to visit office in Lviv/Kyiv.

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

We are looking for a passionate and dedicated Senior Frontend Developer (React) to join our team in Lviv/Kyiv!

About the job:
You will be part of the PlayMatrix business unit in EveryMatrix. PlayMatrix creates state-of-the-art live casino games from scratch.

Project description: 
Roulette and Blackjack (and many-may more other games) with real dealers streamed to players all across the world with lowest latency and highest quality. You will be working in the Frontend team mainly with React, Redux, Redux-toolkit using HTTP2 and WebSockets APIs as the transfer protocols between the server and the client. 

What You'll get to do:

• Develop new user interfaces for live casino games and internal informational systems.
• Build reusable code and libraries for future use.
• Ensure the technical feasibility of UI/UX designs.
• Optimize applications for maximum speed and scalability.
• Collaborate with other team members and stakeholders on all parts of the stack.
• Create technical documentation and well-commented code.
• Minimize and maintain 3rd party library dependencies.

What You need to know:

• 5+ years engineering experience.
• Proficiency with JavaScript, TypeScript, ReactJS, Redux-toolkit, Redux, Websockets and HTML/CSS.
• Experience in video streaming and WebRTC.
• Experience working with Figma.
• Strong empathy for user experience.
• Experience in creating SVG programmatically will be a plus.
• A keen aptitude for sharp feedback and structured communication.
• Desire to work on building things the "right" way.
• Independence and self-motivation.

Here's what we offer:

• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment, with up to 50 days of work from home per year.
• Benefit from two Free Fridays each year, limited to one per quarter.
• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance.
• Corporate English lessons.
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference! 
 

Requirements:

• 5+ or more years experience;
• JavaScript ES6+, Typescript;
• Experience building large React web applications from scratch;
• Experience with REST API и WebSocket;
• Being proficient in all basic frontend technologies (HTML, CSS, etc.);
• Experience in development with Git.

Will be a plus:

• Experience working in a product company;
• Experience in gambling field.

Responsibilities:

• Work at all stages of the product developing lifecycle;
• Create new templates, add new functionality within the React;
• Promote good design principles such as code reuse, modularity, and extensibility.

We offer:

• Flexible schedule and possibility to work entirely remotely;
• Opportunities for professional development and personal growth;
• Corporate events, holiday celebrations, team building activities;
• Paid annual and sick leave;
• Close work with top management and ability to be a decision-maker;
• People-oriented management without bureaucracy.

Hello.

We are looking for a Front-End Team Lead to join Ohayu (https://ohayu.com). We are building the easiest way for travelers to stay online anywhere in the world. We’re a fast-scaling B2C mobile + web app (iOS/Android/Web) that lets people buy eSIM data plans in minutes - cheaper than roaming, no SIM shops, no hassle. Thousands of travelers already use Ohayu worldwide, and we’re just getting started.
Our ambition is bigger than eSIM: we’re evolving Ohayu into a full Travel App that makes every journey smoother.

What you’ll do:

This role is for someone who wants real ownership and real product impact.

• Take full ownership of the frontend architecture and scalability, designing a target architecture to migrate our Preact SPA to Next.js SSR
• Optimize website performance ensuring the fastest load times for users around the world
• Design and implement a robust caching strategy to support global performance at scale
• Add multiple languages to our platform
• Collaborate closely with the design team to translate Figma designs into high-quality, responsive user interfaces and A/B tests
• Improve observability and error handling across the frontend stack
• Refine and implement proper CI/CD pipelines to streamline our development and deployment workflow
• Mentor, support and lead other frontend developers, conducting code reviews and sharing knowledge

What we’re looking for:

• 7+ years of JavaScript experience
• 4+ years of React experience
• 4+ years of Next.js experience (ideally with hands-on work with App Router or Pages Router)
• 3+ years of TypeScript experience
• Proven experience with migration projects - ideally having led or played a key role in SPA to SSR migrations
• Experience deploying and managing applications on Vercel
• Solid knowledge of crash analysis tools and production monitoring
• Experience designing and implementing caching strategies for high-traffic, globally distributed applications
• Familiarity with i18n solutions and adding multi-language support to web platforms
• Experience building and maintaining CI/CD pipelines
• Leadership, mentoring and knowledge-sharing skills; you'll be guiding two mid+ React developers that have some experience with Next.js (13/14)
• At least intermediate English level — all work communication is in English

Why to join us:

• Direct product impact: what you ship gets used immediately by real travelers.
• Ownership: you’re a builder leading the frontend direction.
• Product engineering culture: we care about UX and conversion as much as we care about clean code.
• Fast pace, real learning: constant iterations, clear feedback loops, real-world constraints.
• Genesis ecosystem: access to strong expertise, resources, and networking.
• Benefits: health insurance, 20 paid vacation days, annual performance review with clear salary progression.

Work format: Possibility to work fully remotely or from our offices in Warsaw, Kyiv or Lviv.

Join us in reshaping the future of connectivity.

We’re looking for a proactive Frontend Developer to build and ship new features for a mental health web product targeting the US market. You’ll join a small team where your engineering input matters—this is a role for someone who helps shape solutions, not just execute tickets.

What you’ll work on

• Developing new product features end-to-end in a modern React/Next.js codebase
• Integrating third-party services (APIs, auth, analytics, payments or similar integrations depending on the feature)
• Improving UI quality, performance, and reliability as the product grows

Requirements

• 3+ years of experience building web applications
• Strong hands-on skills with Next.js, React, and TypeScript
• Experience integrating external/third-party services
• B2+ English for daily communication

Nice to have

• Firebase
• Cypress (or another testing framework)
• Material UI
• CI/CD experience

What we value

• Proactivity and ownership: you suggest improvements, raise risks early, and contribute to product decisions.

Domaine is looking for a Senior Shopify Engineer (Hourly Contractor Position) who will be responsible for the overall technical implementation of custom Shopify theme and front end development. The ideal candidate should have several years of experience leading Shopify projects, understand Shopify best practices, and be comfortable working with the latest technologies.
 

This is a part-time contractor role with flexible availability from 10 to 40 hours/week, depending on your capacity. 

JOB RESPONSIBILITIES

• Write high quality code using Liquid, Javascript, React, Tailwind, GraphQL and other front end frameworks
• Expert knowledge and experience with the Shopify Ecommerce platform.
• Ability to work both independently and as part of a team to ensure a high level of quality.
• Strong verbal and written communication skills to accurately describe issues to clients, developers, and project managers.
• A high attention to detail to catch issues within acceptance criteria, edge cases, and other potential issues.
• High level decision making in weighing options between code quality, issues, and releasing code in a timely manner.
• Arbitration of the release process to ensure that all perspectives are heard when it comes to releasing code to production.
• Responsible for owning medium to high complexity frontend feature development and driving both completion and quality 
• Plans and delegates tasks to other engineering team members as required
• Anticipates risks and provides solutions
• Can distill complex asks to actionable solutions and tasks

CREDENTIALS & EXPERIENCE

• Strong understanding of Liquid, Javascript, React, Tailwind CSS, GraphQL, REST, Git
• Experience with Shopify development including: Themes, APIs, Apps, Functions, Extensions
• Experience working with JIRA/Confluence or other tickets management systems.
• 3-5 years of experience working in eCommerce
• Excellent organizational and problem solving skills
• Thorough knowledge and experience with front end, component driven software technology, and microservice design architecture
• Thorough understanding of user behaviors and marketing sciences in eCommerce
• Thorough understanding of the lifecycle and methodologies of software development
• Expertise in software documentation and technical writing
• Validates project estimates and approaches for entire assigned work 
• Acts as a model for junior staff
• Demonstrates high level of personal productivity

• To be able manage commitments to multiple projects
  
  PERKS & BENEFITS

   

• Flexible working schedule
• Remote-first culture

• Continued education and personal development opportunities

  
  
   

Inforce is a Software Development Company delivering high-quality IT solutions for international clients. We are looking for a Front End Developer with strong Shopify and vanilla JavaScript expertise.

Requirements:

• Professional front-end development experience
• Vanilla JavaScript expertise — building complex UI logic without heavy frameworks
• Expert in Shopify Liquid, theme & template development
• Experience with Shopify Checkout UI Extensions and App Blocks
• Knowledge of reusable, modular UI component design (Web Components or similar)
• Proficiency with modern CSS, preprocessors, Tailwind CSS
• Understanding of browser APIs, state management, and performance profiling
• Comfortable working independently in a remote, sprint-based environment
  
  Responsibilities:
• Build and maintain Shopify front-end solutions
• Develop themes, Checkout UI Extensions, and App Blocks
• Design reusable modular UI components
• Optimize performance and maintainability
• Collaborate with the team to follow best practices
  
  We offer:
• Competitive salary
• Challenging Shopify projects
• Career growth opportunities
• Paid sick leave & vacation
• Friendly team and flexible format

• Support for professional development
   

  Required language:
  English — B2 (Upper-Intermediate)

   

Are you a detail-oriented Frontend Developer who enjoys building clean, reliable websites and working with proven templates?
We’re looking for someone with 3+ years of experience, strong spoken English, and a practical mindset who’s comfortable delivering straightforward, well-executed frontend work.

What You’ll Do:

• Build and maintain simple, template-based websites
• Write clean, structured, and maintainable frontend code
• Implement layouts accurately and ensure consistency across pages
• Integrate and support checkout and payment-related features
• Use Git and GitHub for version control and collaboration
• Communicate clearly with the team in spoken English on a daily basis

Your Skillset:

Core:

• HTML
• CSS
• JavaScript
• Vite
• Husky
• Sharp
• Terser

Payments & Checkout (Plus):

• Familiarity with payment integrations such as:
  • Apple Pay
  • Google Pay
  • Klarna 
  • PayPal

What We Value:

• Reliability and consistency
• Clear communication, especially spoken English
• Attention to detail in implementation
• A pragmatic, execution-focused mindset

*Applications submitted through other channels will not be reviewed. In addition, we do not appreciate individual emails or messages sent to personal or alternative email addresses.