Jobs React.js

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

We are located in Lviv and currently work in an office format. For candidates from other cities, we offer relocation (an apartment located near the office, this option is free).

What we expect from the candidate:

- Experience in building responsive user interfaces and designs using HTML/CSS.
- Solid knowledge of JavaScript and React/Next.js.
- Understanding of the latest trends and best practices in front-end development.
- Ability to use dev tools, debugger and package managers (npm, yarn).
- Basic understanding of REST principles.
- Experience with Git.
- Knowledge of how to effectively use GitHub during teamwork.

what we offer:

- free study in our Corporate English Academy

- growth and development opportunities for young developers even if you have no commercial experience

- regular salary review (after the completion of each contract)

- provision of Apple equipment

- comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee, pastries).

- timely payment of salaries.

- corporate events, teambuildings, etc.

- working on projects side by side with Senior developers, which will give you the opportunity to learn and develop.

Welcome to Drawer.AI!

- What we do: AI-driven workflows that let estimators pull quantities and costs from complex PDF drawing sets.  
- Stage: Seed-funded, revenue-generating, aiming for a Series A in 2026.  
- Why join now: Real customers are pushing our roadmap faster than our current front-end team can build.

We’re looking for a Senior React Developer (WebGL / Three.js) to build interactive, high-performance WebGL features for a product environment. This is a hands-on role with ownership over rendering architecture, performance, and user experience.

Key Responsibilities:

• Build complex, high-performance interactive web applications.

• Develop scalable frontend architecture using React.

• Optimize application performance, rendering, and browser memory usage.

• Work closely with product and cross-functional engineering teams.
 

Requirements:

• 8+ years of experience in frontend development.

• 7+ years of hands-on experience with React.

• Deep understanding of modern frontend architecture and state management.

• Solid knowledge of JavaScript and TypeScript.

• Experience optimizing performance in complex web applications.

• Experience building data-heavy or highly interactive UIs.

• Product-oriented mindset and ability to work independently.

• Senior-level ownership and technical decision-making.

Nice to have:

• Experience with WebGL / Three.js.

• React Three Fiber.

• Experience working with complex visual or interactive web interfaces.

Join our stellar team at Drawer.AI, where excellence meets opportunity! Experience the exceptional; enjoy a competitive salary and career advancement and the outstanding work environment we take pride in. Elevate your professional journey with us – because we believe in creating success together. Build a better future with us!

We are looking for a Frontend Developer with Next.js to join our team. We are looking for a person to take on a responsibility of leading the project, someone who can navigate the ambiguity. 

Responsibilities:

• Analyzing requirements for new product features and services
• Hands-on development based on the requirements
• Covering the code with unit tests
• Improving existing software and fixing bugs
• Creating and maintaining code documentation
• Create wireframes, mockups, and UI concepts using design and prototyping tools
• Estimating new features and speaking up when you don't agree with the suggested approach

Requirements:

• Strong experience with React.js and/or Next.js, Typescript
• Strong understanding of UI/UX principles and ability to build pixel-perfect interfaces
• Familarity with frontend toolkits, version control.
• Strong communication skills and proactive problem-solving mindset

Nice to have:

• Understanding of CI/CD
• You can speed up your work with the use of AI tools (Claude Code, Codex, etc.)

Work format:

• Full remote 
• Daily syncs (No meetings Friday)

We offer:

• Remote work
• Flexible working hours except for mandatory calls
• Paid vacations and sick leaves

Pixel mindIT is an innovative IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex challenges, efficient project management, and a continuous improvement process with us.

Requirements:

- knowledge JavaScript/TypeScript
- еxperience in developing on React.js;
- knowledge of Next.js would be an advantage

- familiarity with Redux/React Redux

- proficient in using Git.
- English level: B1 or higher.
 

What We Offer:
- Flexible working hours.
- A friendly and welcoming work environment in a comfortable office.
- Official employment with a competitive salary based on your experience and skills.
- An exciting opportunity to contribute to innovative projects.

The product we are working on is one of TOP-3 navigation systems, complex web-services and other solutions related to it. The web and mobile apps handle information at massive scale and extend well beyond the search giving people and companies a lot of new useful options.

Responsibilities:

• Analyzing requirements for new product features and services
• Hands-on development based on the requirements
• Covering the code with unit tests
• Improving existing software and fixing bugs
• Creating and maintaining code documentation

• Communicating with stakeholders and distributed teams of the product

   

Requirements:

• 4-5 years of hands-on work experience as a Fullstack/Frontend developer
• Hands-on experience in implementing pixel-perfect designs over HTML/CSS
• Strong JavaScript and TypeScript skills
• Hands-on experience with more than one leading frontend framework (our focus is React but it’s preferred you also have experience with either Angular, Vue, Ember.js, Polymer etc)
• Strong hands-on skill with frontend toolkits (Gulp, Webpack, Karma, Jasmine etc.)
• Experience with distributed version control systems (Git, Mercurial, Fossil, etc.)
• Upper-Intermediate English skills, or higher (both written and spoken)
• Experience in working in a linux based server environment
• Ability to learn new technologies

• Passion for products and users

   

Nice to have:

• Experience with at least one dynamic language implementation of a backend technology (Node.JS, Python, Ruby)
• Experience with compiled, statically typed server technologies (Java, Go)
• Experience in ES6, TypeScript, CoffeeScript, React, Redux.
• Experience with building, maintaining and optimizing responsive web apps
• Hands-on experience in cloud technologies
• Experience developing high load/high traffic user-facing software
• Hands-on experience in writing unit-tests
• Solid linux/unix skills
• Experience with mobile-specific sites, and mobile-web/native app integrations
• Experience in setup and continuous improvement of dev environment
• Experience in setup and continuous improvement of a multi-stage production environment
• Experience working on a distributed team (not all in one physical location)

• Open source contributions

   

We offer:

• Opportunities to develop in various areas;
• Compensation package (20 paid vacation days, paid sick leaves);
• Flexible working hours;
• Medical Insurance;
• English courses with a native speaker, yoga (zoom);
• Paid tech training and other activities for professional growth;
• Hybrid work mode (∼3 days in the office);
• International business trips
• Comfortable office.

We seek a talented Strong Middle FE Engineer to join our team and help build a humanitarian transparency platform. This role involves designing and developing user interfaces for both a desktop web application and a Progressive Web App (PWA) for mobile, working as part of a cross-functional team.

 

🧙‍♂️ In This Role You Will

• Design, build, and maintain responsive UI components for desktop and mobile (PWA).
• Implement offline-first architecture using Service Workers, IndexedDB, and client-side caching strategies.
• Build robust data synchronization logic between client and server, including conflict resolution and offline queue management.
• Integrate REST APIs into the frontend layer.
• Contribute to architectural decisions for both web and mobile experiences.
• Ensure offline-first behavior and performance in low-connectivity environments.
• Write clean, maintainable, and testable frontend code.
• Document your work and support knowledge sharing within the team.

🎯 You May Be Interested If

• You enjoy building interfaces that are both functional and intuitive.
• You care about performance, accessibility, and real-world usability.
• You're excited to collaborate in a remote, cross-functional environment.
• You value autonomy, clear communication, and working in a supportive, small-team setting.
• You thrive in an environment that encourages continuous learning and self-improvement.

👌 Role Requirements

• 3+ years of experience in frontend development with React.
• Strong proficiency in TypeScript.
• Solid experience building and deploying Progressive Web Apps (PWA) to production.
• Hands-on experience with offline-first architecture, Service Workers, and Workbox (or equivalent).
• Practical experience with client-side storage solutions: IndexedDB (Dexie.js, idb, or similar), Cache API, localStorage.
• Experience consuming REST APIs and managing application state.
• Solid understanding of Web APIs relevant to PWAs: Push API, Notifications API, Background Sync, Storage API.
• Familiarity with Docker-based development environments.
• Proficiency with Git and standard development tooling.
• English proficiency at B1 level or higher.

Nice to have:

• Experience with hybrid app frameworks (Capacitor, Ionic) for wrapping PWAs into native iOS/Android apps.
• Experience with TanStack Query (React Query) for server state management and caching.
• Experience with React Native for native mobile app development.
• Familiarity with data visualization libraries (e.g. Chart.js, D3, Recharts).
• Experience with GIS or map-based UI components (e.g. Leaflet, Mapbox).
• Experience with WebSockets or real-time data synchronization (Socket.IO , native WebSocket, SSE).
• Familiarity with end-to-end testing tools (Playwright, Cypress).
• Experience working with design systems or component libraries.

💻 Working Conditions

• Employment Type: Full-Time
• This is a fully remote position with the entire team across Ukraine.
• 20 working days of paid vacation per year.
• The team collaboratively defines deadlines, ensuring a balanced and manageable workload. The focus is on delivering commitments on time.
• Flexible working hours to promote a healthy work-life balance.

- 3-5 years of JavaScript game development experience;
- Strong knowledge of HTML5/CSS3;
- Advanced Experience in creating HTML5 games;
- Advanced Javascript ES6+;
- Advanced Experience with some of libraries/frameworks (Phaser, Pixi, Three);
- Strong knowledge of object oriented and functional programming, knowledge of game programming patterns, practices and techniques;
- Understanding of performance optimization algorithms, memory management, threading;
- Good delegation and time management skills
- Problem-solving abilities
- Design highly scalable software solutions to improve functionality and system longevity
- Collaborate with project managers to implement end-to-end solutions for complex projects
- Analyze current systems to maintain integrity and improve architecture
- Train in-house personnel and other end users on software and applications
- Remain informed of current trends and technology developments

Обов'язки

- Creating browser-based HTML5 slot games for desktop and mobile devices;
- Participate in code review and tasks planning activities;
- Participate in discussion with clients on requirements for the game;

Буде плюсом

- Knowledge and practical experience with React;
- Experience with Spine animations;
- Understanding WebGL;

When you join Twin Win Games, you can expect the following perks and benefits:
- Flexible working hours and the freedom to work remotely;
- Paid vacation of 20 workdays/year and 5 workdays/year for sick leaves;
- Unlimited unpaid day-offs to take care of personal matters;
- A range of paid benefits to choose from;
- Personal development plan to support your growth
- Skills training to sharpen your expertise;
- Education office featuring internal and external experts and mentorship programs;
- Structured processes through our corporate confluence;
- Open-minded management style with transparent communication of company strategy and plans;
- Performance-based reviews to recognize and reward your contributions;
- Stress management initiatives, including 1-1 meetings and a feedback culture;
- Engaging in corporate team-building events, marathons, and online challenges;
- Family-friendly policies, including special congratulatory gifts for personal milestones like the birth of a child or a wedding.

If you are an ambitious and enthusiastic professional, always eager to learn and achieve the best results, Twin Win Games is the place for you! We offer ample opportunities for personal development and professional growth. Join us as we continue to create innovative and exciting gaming experiences.

Tango is a successful, marketleader, a live-streaming Platform with 450+ Million registered users, in an industry projected to reach $240 BILLION in the next couple of years. 

The B2C platform, based on the best-quality global video technology, allows millions of talented people around the world to create their own live content, engage with their fans and monetize their talents.

Tango live stream was founded in 2018 and is powered by 300+ global employees operating in a culture of growth, learning, and success!

The Tango team is a vigorous cocktail of hard workers, creative brains, energizers, geeks, overachievers, athletes, and more. We push the limits to bring our app from “one of the top” to “the leader”. 

The best way to describe Tango's work style is not to use the word “impossible”. And we believe that success is a thorny path that runs on sleepless nights, corporate parties, tough releases, and of course our users' smiles (and as we are a LIVE app, we truly get to see our users all around the world smiling right in front of us in real-time!).  

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 7 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.

On behalf of our Client from Japan, Mobilunity is looking for a Senior Frontend Engineer 

Our client is a fast-growing fintech company based in Tokyo that offers its real-time, monthly consolidated credit service all across Japan. Our client started Japan’s first instant post-pay credit service for e-commerce customers in October 2014. The main product is an online payment platform that requires no pre-registration or credit card to use; via this service, the customers can purchase products online using only a mobile phone number and email address and settle a single monthly bill for all their purchases, either at a convenience store, by bank transfer, or auto debit. Customers can use credit funds during a month and then return the balance to zero without paying credit interest.

This service also supports multi-pay installments and subscriptions. There are currently over 4 million accounts in use. This service got the largest investment to date in the Japanese financial tech industry, including a PayPal Ventures investment.

Key  Responsibilities:

• Build and maintain scalable, high-quality front-end applications using React.js
• Translate complex product requirements into clean, intuitive, and pixel-perfect UI
• Collaborate closely with Product, Design, Infrastructure, and Operations teams
• Develop reusable components and front-end architecture patterns for long-term scalability
• Optimize applications for performance, accessibility, and responsiveness
• Instrument applications with monitoring, logging, and alerting for reliability and observability
• Participate in code reviews and maintain high engineering standards across the team
• Work across multiple internal and external products, adapting to varied domain requirements
• Contribute to technical discussions, architecture decisions, and design improvements

Requirements:

• Strong experience with React.js, Typescript, React Native, Expo, Expo Web, Redux, and modern front-end ecosystems
• Proficiency with ES6+, Redux, Webpack, and related tooling
• Experience with Next.js, Redux Toolkit, Zustand, Three.js
• Experience working in large-scale, multi-stakeholder codebases
• Strong understanding of UI/UX principles and ability to build pixel-perfect interfaces
• Focus on performance, maintainability, and testability of code
• Experience collaborating in cross-functional agile teams
• Ability to connect multiple services and workflows even in unfamiliar domains
• Strong communication skills and proactive problem-solving mindset

Nice to have:

• Experience building B2C consumer-facing products
• Background in fintech, payments, or financial systems
• Experience with design systems or scalable UI frameworks
• Familiarity with observability tools (monitoring, logging, analytics)
• Experience mentoring engineers or leading front-end initiatives

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 broadest variety of modern technologies
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• 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! 🐳

Domain: Banking & Finance
Experience: 6+ years
Project Duration: June 1, 2026 – December 31, 2026
Format: Hybrid
Location: Kraków, Poland

About the Project

We are looking for a React Developer to join a team building modern digital solutions for an international financial services company.

The role focuses on developing responsive and user-friendly frontend applications, collaborating closely with product and design teams, and delivering high-quality user experiences in a dynamic engineering environment.

Responsibilities

• Develop modern and responsive frontend applications using React.js
• Prototype and iterate quickly on new features with a strong focus on usability and user experience
• Collaborate closely with product managers and design teams to improve and refine the user journey
• Integrate frontend applications with REST APIs and backend services
• Follow modern frontend development standards and best practices using JavaScript and CSS
• Create wireframes, mockups, and UI concepts using design and prototyping tools
• Contribute to code quality, performance optimization, and frontend architecture improvements

Requirements

• Strong proficiency in JavaScript, TypeScript, HTML5, and CSS3
• Hands-on commercial experience with React.js
• Good understanding of responsive design and modern UI/UX principles
• Experience integrating REST APIs and working with backend services
• Familiarity with state management solutions and component-based architecture
• Knowledge of modern frontend tooling and build systems
• Understanding of frontend performance optimization and debugging techniques
• Ability to work effectively in cross-functional teams
• Strong written and spoken English communication skills

Nice to Have

• Experience with LangChain
• Experience with LangGraph
• Familiarity with LangSmith
• Knowledge of ETL and data management tools

Tech Stack

• JavaScript
• TypeScript
• React
• HTML5
• CSS3
• REST APIs

Preferred Technologies

• LangChain
• LangGraph
• LangSmith
• ETL & Data Management Tools

Location

• Hybrid from Kraków, Poland
• Important: the client requires office visits in Kraków once per week

Recruitment Process

• Technical interview with external partner
• 1.5-hour technical interview with the end client
• Cultural fit interview

Learned JavaScript and React and looking for a job?

We offer you a free 3-month internship at our company, where you will gain experience and the position of Junior React Developer.

Requirements:

- Medium level of knowledge of JavaScript

- Medium level of knowledge of React

- English: upper-intermediate ( speak/read/write)

How to become an intern?

A person who wants to become an intern in our company must have a medium level of theoretical knowledge of JavaScript and React, as well as the availability of term papers or projects that were developed at home for training purposes.

Only for ukrainians

We are a team of Lean Startup professionals for whom entrepreneurship and startup culture are not just a job, but a way of life. We are not just “to beat around the bush” ones who aim to fulfil all of the customer’s requests by adding more features to the project while “wasting the client’s budget”. We prefer to leave that to the classic outsourcing companies!
Our rich experience, enriched by hands-on work with startups and the application of the Lean Startup approach, is the key to our outstanding efficiency. Being on the market for 5 years, we have launched over 70 successful startups from scratch, working with clients around the world.
 
💡 We Create Startups for Clients from Different Countries
We specialise in helping entrepreneurs and startups from America/Europe launch successful digital startups at early stages. Our goal is not just to launch, but also to assist with the full understanding of the real market demand for the product, thereby saving years of work and significant budgets of our clients.
 
👥 A Team of Over 40 Experts
Our team consists of more than 40 specialists, each fully immersed in projects and ready to offer the best solutions at every stage of product development.
 
🚀 Our Advantages:
 

• Technological and Process Innovation. We actively integrate the latest technologies into our work and constantly update and automate our processes to avoid bureaucracy and accelerate results.
• Individual Approach to Projects. We are not just task executors; we strive to understand the unique needs of each project and realise them based on our expertise and innovative approaches.
• Strong Team Culture. Our team is distinguished by a high level of mutual assistance and support, openness to feedback, and an absence of toxicity, which contributes to a favourable environment for the growth and development of both projects and the personal development of each employee.

Challenges you’ll meet:
- Development of multilingual web applications.
- Project estimation;
- SEO/Core Web Vitals optimisations;
- Collaboration with designers to implement design accurately.

Requirements:
- 1,5+ years of commercial experience
- Good knowledge of JavaScript
- Experience with React and TypeScript,
- Redux-Toolkit and RTK-Query - understanding how the store works in an application,
- Good Next.js experience and understanding of SSR (Server Side Rendering),
- Experience with analytics,
- Knowledge and understanding of BEM(Block Element Modifier),
- Experience with I18n,

We offer:
 

• 4-Day Work Week (Mon-Thu): Enjoy a flexible schedule with a four-day workweek, giving you more time for learning, rest, and personal growth;
• Fully Remote Work with a Flexible Schedule: Enjoy the freedom to work from anywhere in the world with a schedule that suits you;
• 16 Business Days of Vacation: Take advantage of 16 business days of annual leave to relax and recharge;
• Additional Personal Event Days Off: Enjoy extra days off for personal events to celebrate and take care of what matters most;
• Unlimited Sick Leave: Health comes first. Benefit from unlimited sick leave to ensure you have the time to recover without worry;
• Personal Technology Purchase Program: Get support in purchasing tech gadgets for personal use, keeping you up-to-date with the latest technology;
• Internal Currency for Additional Perks: Earn our internal currency and exchange it for delightful perks like company merchandise, sweets, and certificates for various activities;
• Online Team Building Activities: Engage in fun and interactive online team-building activities, fostering collaboration and strengthening our remote work community;
• Sabbatical Leave: Take a break to recharge or pursue personal projects with our sabbatical leave option;
• Full Entrepreneurial Support: Receive complete support for your entrepreneurial status, including accounting assistance.

Let`s Launch Startups Together! 🚀

Company: Trusted Gaming – Part of Traffic Label Group

About Trusted Gaming
Trusted Gaming is a fast-growing division of Traffic Label Group, specialising in the creation of modern web platforms and user experiences for the online gaming and casino industry. Our products combine innovative design, high performance, and scalability. We’re expanding our front-end engineering team and are seeking a skilled React Developer to help drive new product builds and refine existing architectures.

About Traffic Label

Traffic Label is a fast-growing, data-driven technology company operating in the iGaming and affiliate marketing space, building scalable products focused on performance, analytics, and automation across global markets.

Role Overview
You will be part of a small but highly capable engineering team responsible for developing and maintaining performant, well-structured, and scalable front-end applications. This role involves collaborating closely with backend developers, UX/UI designers, and product managers to deliver best-in-class gaming experiences.
You’ll work primarily in React + Next.js, employing modern patterns, libraries, and tooling. The ideal candidate is both hands-on and detail-oriented, with a strong sense of quality and an interest in building well-architected systems that balance creativity and reliability.

Key Responsibilities

• Build interactive and responsive front-end components using React 19+ and Next.js 15+ (App Router, SSR, server actions).
• Develop modular, reusable code using modern frameworks like TypeScript, Tailwind CSS, and Mantine UI.
• Implement efficient data management with TanStack Query and TanStack Form.
• Integrate and manage REST APIs using tools such as Swagger / OpenAPI for consistent type-safe interfaces.
• Collaborate with the backend team on performance optimization, deployment, and continuous integration (CI/CD).
• Maintain and evolve a Turborepo monorepo architecture, ensuring clean development workflows.
• Apply best practices for code versioning and documentation using Git and relevant CI/CD tools.
• Contribute to architectural discussions, proposing improvements and shaping technical direction.

Skills & Experience Required

• Proven experience building complex, scalable web applications with React (v19+) and Next.js (v15+).
• Strong understanding of TypeScript and modern front-end tooling (Vite, Tailwind CSS).
• Experience with Mantine UI, React Aria Components, and responsive component design.
• Solid grasp of TanStack Query/Form, REST API integration, and Swagger / OpenAPI documentation.
• Familiarity with Turborepo and monorepo design principles.
• Working knowledge of Git and CI/CD pipelines.

Nice to Have

• Advanced React concepts: hooks, composition, compound components, render props.
• Advanced CSS techniques: animations, container queries.
• Automated API type generation (e.g. Orval).
• Code consistency and formatting tools: ESLint, Prettier, Biome.
• Exposure to Pixi.js, or general game development experience a plus.

What We Offer

• Fully remote role within Czech Republic – flexible hours.
• Collaborative and innovative culture across the Traffic Label group.
• Opportunities to experiment with emerging technologies in the gaming space.
• Competitive salary and benefits package tailored to experience.
• A chance to contribute to products that reach millions of users.

Smart Capital Center is an end-to-end, AI-powered platform for Commercial Real Estate (CRE) investment and financial management. We power real-time underwriting, asset management, and portfolio analytics through a combination of live data, workflow automation, and AI-driven insights.

Operating at the intersection of Generative AI, finance, and real estate, we are building systems that digitize and simplify complex financial workflows.

Our clients include leading institutions such as JLL, Pacific Life Insurance Company, and KeyBank. We are a lean, high-performance team building category-defining technology in a $17 trillion industry.

To learn more about our platform and vision, please visit our website: www.smartcapitalcenter.com

The Role

We are looking for a Middle Front-End Engineer who is passionate about building modern, high-performance web applications and thrives in a hands-on, collaborative environment.

This is a highly technical role focused on delivering intuitive, scalable, and responsive user experiences. You will work closely with engineering leadership, product managers, designers, and backend engineers to implement frontend features and improve the overall usability of the platform.

You will primarily contribute to building data-rich, user-facing applications using modern frontend technologies and best practices.

What You Will Do

Front-End Development (Core Responsibility)

• Design, build, and ship responsive frontend features and applications
• Develop modern UI components using React and TypeScript
• Implement complex, data-driven interfaces and workflows
• Translate product and UX requirements into polished user experiences
• Ensure seamless integration with backend APIs and services
• Own frontend features from development through deployment

UI/UX Engineering

• Build intuitive and user-friendly interfaces for complex workflows
• Optimize rendering performance and application responsiveness
• Improve frontend architecture, reusability, and maintainability
• Contribute to component libraries and design systems
• Ensure consistency across the platform’s UI/UX

Technical Contribution

• Write clean, maintainable, and well-tested frontend code
• Participate in code reviews and share frontend best practices
• Contribute to frontend architecture and technical discussions
• Help improve engineering quality, standards, and development processes
• Participate in troubleshooting, debugging, and performance optimization

Collaboration

• Work closely with Product, UX, backend engineering, and AI teams
• Contribute to end-to-end feature delivery
• Participate in Agile development processes
• Collaborate across teams to deliver high-quality product experiences

Requirements

Front-End Engineering (Strong Requirement)

• 3+ years of frontend software development experience
• Strong expertise in TypeScript, JavaScript (ES6+), HTML, and CSS
• Strong experience with ReactJS
• Experience with state management solutions (Redux, MobX, Zustand, or similar)
• Ability to build scalable and maintainable frontend architecture
• Strong focus on usability, responsiveness, and performance optimization
• Experience integrating frontend applications with REST APIs
• Good understanding of responsive design and cross-browser compatibility

Core Engineering Skills

• Strong problem-solving and debugging abilities
• Experience with Git and Agile/SCRUM workflows
• Attention to detail and strong ownership mindset
• Ability to work effectively in a collaborative team environment
• Good communication and organizational skills

Nice to Have

• Experience with data visualization libraries (D3.js, ECharts, etc.)
• Familiarity with design systems or component libraries
• Experience with testing frameworks (Jest, Cypress, Playwright, etc.)
• Familiarity with modern frontend tooling (Vite, Webpack, ESLint, etc.)
• Basic understanding of cloud platforms and deployment workflows
• Exposure to financial systems, analytics platforms, or real estate technology
• Experience working with AI-powered products or intelligent workflows
• Experience with AI-assisted development tools such as Copilot, Cursor, Claude Code, or similar

Why Join Us

• Work on cutting-edge AI-powered systems in a $17T industry
• Build modern, data-rich applications used in real-world financial workflows
• Collaborate closely with AI, product, and engineering teams
• High ownership and autonomy with meaningful technical impact
• Opportunity to influence frontend architecture and user experience direction
• Fast-moving, execution-focused team with minimal bureaucracy
• Exposure to modern technologies, AI-powered platforms, and intelligent systems

• Competitive compensation and flexible work environment

   

Apply Now

If you are passionate about building exceptional frontend experiences and want to work on impactful, AI-powered products in a fast-moving engineering environment, we would love to hear from you.

Apply today and become part of a team building the future of Commercial Real Estate technology.

About Us

We're MuseCool, London's largest music school, now building The Muse, an innovative platform that assists music tutors in delivering personalised lessons and improving student engagement.

You'll help us develop a cutting-edge music lesson understanding engine, to be used in thousands of real lessons. Expect messy audio, real students, real tutors, real data, and the chance to build something no one has built before.

This is a fully remote role for Ukraine-based candidates. We work with an overlap with London hours.

The Role

We're hiring a Frontend Engineer (Music Education Games) to build interactive music-learning interfaces that respond to live piano playing. Games will be integrated with our real-time lesson analysis engine and become one of the high-value features of our solution.

This isn't static web development, it's about creating smooth, engaging, and playful musical experiences where timing, visual feedback, and audio synchronisation must all work flawlessly together.

You'll work with our team of engineers to turn analysis outputs into delightful, effective learning games for children.

What You'll Work On

• Build interactive music game interfaces with real-time visual feedback for piano practice
• Create original game mechanics with real-time performance feedback
• Implement smooth, performant animations and transitions that respond to live audio analysis
• Optimise for timing precision and implement responsive interfaces that work across devices
• Balance polish with pragmatism. Ship features that work, then iterate

Requirements

• Strong frontend fundamentals (Next.js + React + TypeScript)
• Experience building performant, interactive web interfaces with complex timing requirements
• Experience with animation, transitions, and creating smooth user experiences
• Basic music knowledge (played an instrument at an amateur level or above)
• Comfortable working remotely with some overlap with London hours

Nice-to-Haves

• Experience with animation libraries like GSAP, Framer Motion, or similar
• Experience with Canvas, SVG animation, or game-style rendering
• Familiarity with animation tools like Rive, Lottie, or After Effects
• Experience with game development, education apps, or interactive multimedia
• Knowledge of Web Audio API or audio-visual synchronisation
• Familiarity with MIDI and music notation rendering (Verovio, etc.)
• Experience with real-time systems or performance optimisation
• Mobile development experience (React Native or similar)
• Some backend or full-stack experience. Useful when a feature needs API support or cross-stack changes
• Background in children's educational content
• Curiosity about music pedagogy and learning psychology

Don't tick every box? Apply anyway if you're passionate about music education technology and eager to learn - we value curiosity and drive as much as experience, and we want people who can grow into the role.

What We Offer

• $2,000–3,000/month depending on experience
• Autonomy, ownership, and the chance to build something truly original
• Rapid development and growth as the company scales
• Weekly online instrument lessons - you get too choose which instrumet you want :)

To Apply

Please provide the following with your application:

• CV
• Link to 1-2 projects you've built (live demo, repo, or portfolio)

Interviews ongoing - we hire fast when we meet the right person!