Jobs JavaScript / Front-End

We are looking for a talented and passionate Front-End Engineer to help bridge the gap between design and development, delivering seamless and engaging user experiences.

Qualifications

• Strong knowledge of front-end technologies: JavaScript, React, and Next.js.
• Experience 7+ years
• Solid understanding of UX principles, interaction design, and visual design fundamentals.
• Proficiency in design tools such as Figma, Adobe XD, or similar.
• Experience with accessibility standards (WCAG/ARIA) and usability testing tools.
• Familiarity with version control systems, especially Git.
• Excellent problem-solving abilities and communication skills.
• Comfortable working in a fast-paced, collaborative environment.

• Strong verbal and written communication skills.

   

Key Responsibilities

• Collaborate with designers, developers, and product managers to deliver user-centric digital experiences.
• Translate wireframes and high-fidelity designs into responsive, scalable front-end solutions.
• Develop and maintain interfaces using HTML, CSS, JavaScript, React, and Next.js.
• Maintain and document the design system, front-end workflows, and best practices.
• Stay up to date with the latest UX trends, front-end technologies, and industry standards.

We Offer

Work with one of the leading online learning platforms in the US that’s shaping the future of education technology. You’ll be part of a strong technical team with modern tech stack, collaborative culture, and real impact on how thousands of students and educators use the platform daily.

• Fully remote with flexibility
• Collaborative  engineering community
• Paid vacation, holidays, and sick leave

Contract Type: Full-time freelance (168h per/mo)

Duration: 3 months (with strong potential for extension) 

Start Date: ASAP

About the Role

The role is to help develop web based business app to be used by agents and support teams to enter and process claims in the auto insurance industry. Industry experience is not required, but primarily looking for someone with experience building large and complex data entry workflows

Responsibilities:

• Development of complex, multi-screen data entry and management flows.
• Conditional logic for guiding data entry based upon selections.
• Custom components which provide visuals and UI tools to simplify and standardize data entry.
• Integration with backend REST API.
• Next.js, React, Typescript, and Zod.

What We're Looking For:

• Strong proficiency in React, Next.js, and TypeScript (3+ years of experience)
• Good English communication skills (B2+)
• Experience with modern CSS (Tailwind, CSS Modules, or styled-components)
• Familiarity with RESTful APIs and async data handling
• Good communication skills and ability to work in a distributed team

Why Join Us

It's a freelance gig – no fancy perks, no gym memberships, no "unlimited PTO" buzzwords.

What we can promise:

• Payments on time. Always.
• A great client: communicative, reasonable, no drama.
• A team that's easy to work with: we keep things simple and respectful.
• Real chance for extension. This team has been renewing contracts for almost a year.

Applefy, a leading mobile and Web Development company, is looking for a talented Flutter Developer to join our dynamic team on an ongoing project. 
This is a fantastic opportunity for a developer passionate about building high-quality mobile applications and wanting to grow their skills in a flexible and supportive environment.

What We Offer:

• Flexible work schedule: Manage your own time and work at your own pace.
• Fully remote: Work from anywhere in the world.
• Comprehensive leave policy: Enjoy all official holidays, 20 days of paid vacation, and 10 sick days without needing a doctor’s note.

Key Requirements:
• Strong communication skills
• Proficiency in spoken English
• 3+ years of experience with JavaScript |  Electron.js

• experience handling image/video generation workflows
• At least two years of experience in product development
• Solid understanding of UI/UX principles
• Keen attention to detail
• A desire to learn and grow professionally

Preferred Qualifications:
• MacBook (ARM processor) & iPhone owner
• ML / Python experience 
• Residency in Ukraine 🇺🇦

If you’re ready to take the next step in your career with Applefy, we’d love to hear from you!
 

This vacancy requires office attendance in Kyiv

Responsibilities

• Development and support of SPA on ReactJS: web version mobile-first of a high-load application, admin panels for internal use, and marketing pages
• Collaborate with other teams to effectively meet the product and technical needs of the project
• Proactively participate in improvements and existing solutions tuning
• Share expertise and knowledge with your teammates

Requirements

• At least 5 years of commercial experience in development in JS (ES6+)/Typescript
• Strong knowledge of CSS, HTML5, SASS, Jest
• At least 2 years of commercial experience in development in with ReactJS version 16+ (hooks)
• Experience with state management frameworks: Redux and Redux toolkit preferred
• Intermediate English

What we offer:

• International company with several offices in different locations : Tel-Aviv, Kyiv, Warsaw, Limassol.
• Granting an Option;
• A professional environment with great people to work with;
• Competitive salary, performance review;
• Flexible working hours, no one here tracks your work time because our culture is built on trust and cooperation;
• Social package, including sports coverage, elite medical insurance for you and family;
• 20 working days paid vacation and 100% sick leaves coverage;
• Opportunities to make a difference, to develop and grow;
• Regular corporate celebrations, team buildings and fun activities;
• Comfortable office close to the metro station. Our Kyiv office is open 24/7 with all safety and health measures in place.

We are looking for a Middle/Senior Frontend Developer to join an international Web3 product team.

Tech Stack

• Angular 19
• TypeScript
• PrimeNG

• RxJS, signals, modular frontend architecture

   

Required Experience

• 3+ years of commercial experience in Web3
• Hands-on experience with blockchains:
  • Ethereum, Solana (EVM & non-EVM)
• Deep understanding of:
  • Wallet integrations (MetaMask, WalletConnect, Phantom, etc.)
  • Signing, transactions, gas/fees, RPC providers
  • On-chain ↔ off-chain interaction patterns
• Strong experience working with APIs & SDKs:
  • Integration of external product SDKs
  • Working with REST / WebSocket APIs

  • Understanding of API contracts, versioning, and error handling

     

API & Integration Focus

• Integration of new products and services via APIs and SDKs
• Ability to quickly understand third-party SDKs and documentation
• Building abstraction layers over APIs for scalable frontend architecture

• Collaboration with backend teams on API design and improvements

   

English & Communication

• English level: B2 or higher
• Experience working in an international team

• Clear communication with product, backend, and design teams

   

What We Expect

• Strong frontend architecture and system thinking
• Ability to work independently and own features end-to-end
• Team player mindset
• High attention to UX/UI details

• Clean, maintainable, production-ready code

   

Nice to Have

• Experience with DeFi products (DEX, swaps, limit orders, dashboards)
• Experience with React and understanding of cross-framework frontend patterns
• Real-time data handling (WebSockets, streams, live pricing)
• Performance optimization for complex Web3 UIs

• Code reviews

   

What You’ll Get

• Real Web3 products, not experiments
• Integration-heavy frontend with APIs & SDKs
• International team and async culture
• Impact on architecture and product decisions

Requirements:

• 1+ years of experience in development
• Strong knowledge of Javascript and TypeScript
• Strong knowledge of Angular
• Strong analytical and problem-solving skills
• Experience working with RxJS ,NgRx ,signals, and new angular syntax template
• Confident AI prompting, understanding of LLM principles (Context window, RAG, System prompts)
• Experience working with AI coding assistants (Cursor, Claude Code, GitHub Copilot)
• Good understanding of asynchronous and reactive programming
• Confident working with the Git version control system
• Understanding of GraphQL
• Intermediate level of English

Would be a plus:

• Experience working with React
• Experience working with Websockets
• Experience building large-scale SaaS platforms supporting millions of users.

Responsibilities:

• Build features and systems with attention to detail and performance.
• Own end-to-end development, from conception to production.
• Engineer not only solutions but also tools to understand the problem.
• Work closely with cross-functional stakeholders to deliver a world-class product.
• Identify and implement improvements to our existing systems.

About the project:

Project management platform. With the help of own API, it’s possible to do multiple integrations with communication, sales, analytics and other applications that are used by co-workers on a daily basis.

We are looking for a frontend engineer to improve the beautifully crafted product that helps millions of people to enjoy their remote work! You will be responsible to deliver production-ready functionality in a cross-functional team and will be able to reach millions of people with your best effort and working time as part of a multinational team of highly skilled developers.

We are 3DVisual Studio, developing advanced 3D solutions for web platforms. Our projects include interactive visualizations, 3D configurators, STEM animations (chemical reactions, engineering models), and high-performance web applications.

We are currently looking for a Junior+ Three.js Developer who wants to grow in 3D development and work with advanced technologies.

Responsibilities:

• Development of 3D scenes, animations and interactive elements in Three.js / WebGL.
• Integration of 3D models into web projects (preparation, optimization, import of GLTF, FBX)
• Work with textures, light, materials and cameras
• Optimization of 3D scenes for fast rendering in the browser
• Interaction with a team of designers, 3D artists and backend developers
• Learning new technologies and trends in 3D graphics

Requirements:

• 2+ year of experience with Three.js, WebGL or 3D graphics fundamentals
• Basic understanding of 3D math (vectors, matrices, transformations)
• Experience with 3D models in GLTF, FBX, OBJ formats
• Experience with JavaScript, TypeScript, React/Vue (will be a plus)
• Understanding of Git, basic knowledge of GitHub/GitLab
• English at the level to work with technical documentation

Will be a plus:

• Experience with Shaders (GLSL), WebGPU
• Knowledge of scene optimization
• Understanding of interactive 3D interfaces and UX in 3D

What we offer:

• A competitive salary that reflects your skills.
• Fully remote.
• Opportunities to work on international projects and grow professionally.
• Exciting tasks in the world of 3D and web development.

Ready to join us? Apply now! Your creativity might just be the spark we’re looking for.

We’re looking for a Senior Front-end Developer to join our team.

This role is for someone who wants to work on WEBSITES with complex animations and interactive experiences.

We’re looking for someone with 8+ years of experience.

You’ll be working from enterprise company websites to immersive microsites and event-based web experiences. You can see examples of our projects here:

https://noomoagency.com/work

Must-haves:

• React
• Zustand (or similar state manager)
• Tailwind (for styling)
• GSAP (for animations)
• Framer Motion (as a possible addition to GSAP)
• Fluent English

What you'll work on

Marketing websites and landing pages, GSAP-powered scroll animations and interactions, integration of 3D elements, headless CMS integrations, performance optimization and cross-browser polish.
 

What we're looking for
 

At least 1 year of commercial frontend experience. Strong React and Next.js. GSAP at a confident level. You can take a Figma design and build it pixel-perfect without back-and-forth. You manage your own time and don't need hand-holding.
 

Three.js / WebGL experience is a big bonus but not required.

On behalf of our Client from Portugal, Mobilunity is looking for a Middle/Senior Frontend Engineer (3D & Graphics) on full-time engagement.

Our Client is building a new digital product with a strong 3D rendering component. Part of a broader initiative to scale digital solutions and establish a Data & AI Center of Excellence. They designs, engineers and manufactures structural connectors, fasteners, anchors, lateral-force resisting systems and related products for wood, steel and concrete construction in residential, commercial and infrastructure markets. The brand is widely recognized as the leading “genuine connector” supplier in North American residential construction and a global leader in structural product solutions.

Key Responsibilities:

• 3D Rendering & Interaction
  — Develop real-time 3D scenes using WebGL/WebGPU and frameworks like Three.js or Babylon.js.
  — Implement intuitive controls (orbit, pan, zoom, snapping, rulers, grids).
  — Optimize rendering for desktop and mobile browsers (LOD, batching, texture compression).
• DIY-Specific Features
  — Build parametric templates (e.g., shelves, tables) with adjustable dimensions.
  — Generate cut lists, bill of materials, and assembly steps from user configurations.
  — Implement exploded views and simple animations for assembly guidance.
• Performance & Accessibility
  — Ensure smooth performance across mid-tier hardware and mobile devices.
  — Apply Web Workers and WASM for heavy computations.
  — Make the 3D UI accessible (keyboard navigation, ARIA roles, color contrast compliance).
• Integration
  — Connect with backend APIs for project persistence and sharing.
  — Enable export to PDF plans.

Required Skills and Experience:

• 3+ years in web-based 3D development.
• Strong proficiency in: JavaScript/TypeScript and Three.js, Babylon.js, or similar frameworks.
• Solid understanding of WebGL/WebGPU, shaders, and 3D math (vectors, matrices, transformations).
• Experience with performance optimization for browser environments.
• Familiarity with responsive design and cross-browser compatibility.

Preferred Qualifications:

• Experience with CSG operations, parametric geometry, or CAD-style modelling is a plus.
• Experience building CAD-lite tools or product configurators.
• Knowledge of procedural geometry, snapping systems, and constraint logic.
• Familiarity with WebAssembly, Web Workers, and GPU profiling.
• Understanding of export pipelines for 3D and printable plans.
• UX experience for touch and mobile-first interactions.

Tech Stack:

• Frontend: TypeScript, React (or similar), Three.js/Babylon.js, WebGL/WebGPU.
• Build Tools: GitHub, ADO, Terraform.
• Testing: Jest/Vitest, Playwright/Cypress.
• Backend Integration: ASP.NET.

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the widest variety of modern technologies.
• Mobilunity Medical Insurance program designed to meet our teams’ needs.
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note.
• Perfect office location in the city center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both.
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones.
• English classes in 1-to-1 & group modes with elements of gamification.
• Neverending fun: sports events, tournaments, music band, multiple affinity groups

Come on board, and let’s grow together!

As a Senior Frontend Developer, you will own the development of a platform layer that integrates HTML5 games into a seamless user experience.

You will design and implement scalable frontend architecture, build high-quality UI components, and ensure performance, responsiveness, and visual polish across the product.

This role requires strong React expertise, architectural thinking, and the ability to work across design, game clients, and backend systems.

Responsibilities

• Design and develop frontend architecture for the game catalog platform
• Build scalable and reusable UI components using React
• Implement responsive and high-performance interfaces
• Integrate with backend services via REST API and WebSockets
• Integrate with game clients via postMessage
• Optimize performance, loading speed, and resource usage
• Collaborate with designers, animators, and backend developers
• Contribute to code quality, architecture decisions, and development standards

Requirements

• 5+ years of commercial experience with modern React
• Strong knowledge of TypeScript, JavaScript, HTML, CSS
• Deep understanding of React ecosystem and frontend architecture
• Experience working with Node.js / NPM ecosystem
• Experience designing scalable frontend systems and components
• Experience integrating with APIs (REST, WebSockets)
• Experience with build tools (Webpack, Vite, Babel)
• Strong experience with Git, GitFlow, CI/CD
• Experience optimizing frontend performance and load times
• Ability to work independently and handle complex tasks

Would Be a Plus

• Experience with Jira, Bitbucket
• Understanding of casino platforms and game integration flows
• Experience with reskins, animations, and localization
• Experience working with game clients or similar interactive systems

What We Offer

• Ownership of frontend architecture for a product-level platform
• Opportunity to influence UI/UX and visual quality standards
• Product-driven environment with global roadmap
• Flexible working format (remote / hybrid, Malta office)
• Competitive compensation and career growth
• Collaboration with an international team of industry professionals

LineUp is a fast-growing IT outsourcing company with 13 years of experience. We are currently looking for a Middle Frontend Developer to join a long-term product project.

You will become part of the Smart City ecosystem - a large-scale software product for the Middle East market. This is a fully agile, product-oriented environment with real users and a tangible impact on urban infrastructure.
 

Key Responsibilities:

• Develop and maintain complex frontend applications using React and Next.js.
• Embrace and operate within a T-shaped approach, being ready to extend expertise beyond frontend tasks to ensure end-to-end delivery of features
• Collaborate closely with stakeholders and other developers to understand business requirements, translate them into high-quality technical solutions that meet those needs.
• Utilize state management tools like Zustand or similar, and efficiently integrate with backend services using TanStack (React Query) or other data-fetching libraries.
• Maintain CI/CD pipelines using GitLab runners and manage deployment processes with Docker (build and push to registry).
• Ensure UI/UX consistency by utilizing component libraries such as PrimeReact or similar, building reusable components.
• Troubleshoot, debug, and optimize frontend code to enhance performance and maintainability.
• Contribute to the agile development process by participating in scrum events, and driving towards a cross-functional, collaborative work environment.
• Stay up-to-date with the latest frontend technologies and best practices, fostering a mindset of continuous learning and development. Maintain a high-level engineering culture within the team.
   

Qualifications:

• Minimum of 3 years of experience in frontend development with a focus on React, Next.js, and related technologies.
• Knowledge or experience in Backend development (specifically Nest.js) is a significant plus.
• Knowledge or experience with automated tests (integration, E2E) is a significant plus.
• Willingness and mindset to work in a T-shaped model, contributing to various stages of the development lifecycle
• Familiarity with state management libraries (e.g., Zustand) and data-fetching solutions like TanStack (React Query).
• Understanding of frontend build tools, CI/CD pipelines, and containerization with Docker.
• Experience with component libraries such as PrimeReact or similar, and a working knowledge of React hooks.
• Ability to document frontend designs and processes clearly.
• Strong problem-solving skills and attention to detail, with a drive to create high-quality, performant code.
• Ability to work both independently and as part of a team in an agile environment.
• Good communication skills, with the ability to interact professionally with team members and stakeholders.
• English at Upper-Intermediate level and above.
   

What We Offer:

• Competitive salary.
• A collaborative and innovative work environment.
• Professional development opportunities.
• The chance to work on exciting and challenging projects.
• A supportive company culture.

Full-time | Long-term | Remote

English level: B2+

About the Project

Danish client. You will join a small team of 2–5 people.
There are multiple ongoing projects, and final allocation will be decided during onboarding.

Candidates of Ukrainian origin are preferred.

Responsibilities

• Develop and maintain frontend solutions using Magento 2
• Work with Hyvä Theme
• Contribute to projects based on Adobe Commerce
• Collaborate closely with backend developers

• Handle minor backend tasks when needed

   

Requirements

• Strong experience with Magento 2 frontend development
• Hands-on experience with Hyvä Theme
• Good understanding of Adobe Commerce / Magento 2 architecture
• Basic backend knowledge (PHP / Magento) sufficient for small tasks
• Experience working in a team environment

• English proficiency at B2 level or higher

   

Additional Notes

• This role requires a strong frontend focus
• Flexibility to work across multiple projects
• Full-time engagement with high level of involvement expected

Come build something true with us.

We’re True Sea Moss, a fast-growing wellness brand built on the healing powers of one of nature’s oldest superfoods: sea moss.

No powdered promises. No pretty lies. Just clean, potent nourishment pulled from the wild and delivered to the people who need it most.

As we scale, our Shopify store has become one of the core pillars of how customers experience the brand — from product discovery to subscription, retention, and checkout performance.

We’re looking for a Shopify Developer — someone who can own the technical side of our storefront, build scalable solutions, and ensure our e-commerce platform evolves as fast as the business does.

Now — who are we looking for?

You’re not just maintaining a website — you’re building an e-commerce engine.

You understand how Shopify works under the hood: themes, Liquid, APIs, apps, and performance. You know how to translate design and marketing ideas into fast, stable, conversion-focused storefront features.

You’re comfortable owning Shopify development end-to-end — from implementing new features to improving performance, fixing issues, and supporting growth experiments.

What You’ll Be Doing

• Build and customize Shopify themes using Liquid, HTML, CSS, and JavaScript
• Develop new storefront components, sections, and templates
• Implement UI updates and landing pages based on design and marketing needs
• Optimize store performance, loading speed, and mobile responsiveness
• Troubleshoot and resolve bugs or technical issues affecting the storefront
• Integrate and configure Shopify apps (subscriptions, marketing tools, analytics)
• Support marketing campaigns with technical implementations and landing pages
• Ensure stable integrations with platforms like Klaviyo, Recharge, Postscript, and other tools
• Maintain clean code structure and documentation
• Act as the technical owner of the Shopify storefront

What You Bring

• 3+ years of experience working with Shopify development
• Strong experience with Liquid, HTML, CSS, and JavaScript
• Experience customizing Shopify themes and storefront components
• Understanding of Shopify APIs and the Shopify app ecosystem
• Experience integrating marketing and subscription tools within Shopify
• Strong attention to performance, responsiveness, and user experience
• Strong English (Upper-Intermediate+)
• Ability to work independently and collaborate with design and marketing teams

Nice-to-Haves

• Experience building custom Shopify apps
• Experience with Shopify Plus environments
• Experience optimizing Shopify performance and page speed
• Familiarity with Git and version control workflows
• Experience working with fast-growing DTC or e-commerce brands

Why Work With Us

• You’ll own the technical evolution of the company’s core storefront
• Real autonomy, real responsibility, real impact
• A brand that values depth, honesty, and long-term thinking
• A team that trusts expertise and supports strong ownership

Here’s How We Back Our Words with Care

• Welcome pack and custom True Sea Moss merch to start strong
• Sports reimbursement to support your mental and physical well-being
• Additional vacation days beyond standard holidays
• Coaching & career development sessions to fuel your growth
• Corporate English lessons to sharpen communication
• WHOOP membership to support your health and recovery
• Coworking membership for flexibility and focus
• Sabbatical options after long-term contributions
• Travel and project grants to support personal growth and creativity

So — does this sound like you?

If you’re ready to build and scale a high-performing Shopify storefront for a fast-growing wellness brand — we’d love to meet you.

We are looking for a Senior Frontend Engineer to join Quintagroup and work on a long-term US-based product in the marketplace analytics domain.

The platform helps analyze marketplace data, track sales trends, and support data-driven product decisions. In this role, you will focus on building and improving the frontend part of a modern web application in close collaboration with a senior US-based engineer and a cross-functional team.

Responsibilities

• Develop and enhance a modern frontend application using React, Next.js, and TypeScript
• Build responsive, scalable, and user-friendly interfaces

• Work closely with a senior engineer on architecture and 

  implementation decisions

• Collaborate with BA, Data Engineers, DevOps, PM, and Architect
• Integrate frontend components with APIs and analytics-related functionality
• Participate in planning, estimation, and technical discussions
• Improve application performance, maintainability, and code quality
• Contribute to engineering best practices and UI consistency

Tech Stack
React, Next.js, TypeScript, REST APIs, AWS

Requirements
 

• 6+ years of commercial experience in frontend development
• Strong hands-on experience with React and TypeScript
• Strong commercial experience with Next.js
• Deep understanding of modern frontend architecture and best practices
• Experience building complex, data-heavy web applications
• Solid experience with REST APIs integration
• Strong knowledge of performance optimization, state management, and reusable component design
• Experience working in distributed teams
• Strong English communication skills, B2+ or higher

Nice to Have
 

• Experience with Node.js
• Experience with AWS
• Familiarity with analytics or marketplace-related products
• Experience collaborating in cross-functional product teams

We Offer

• Flexible working format: fully remote, hybrid, or office-based in Lviv
• Supportive and friendly team environment
• Long-term stable collaboration with an established US client
• Online English classes
• Private healthcare package
• Access to learning and professional development opportunities
• Team-building activities and company perks
• IT Club Loyalty membership