Jobs React.js

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.

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! 🐳

Привіт,

Шукаємо ReactJs Developer-a для невеликого one-time проекту (можуть потім бути ще проекти). Основне це знати React та вміти працювати з різними API. Сам проект це розробка chrome extension (попередній досвійд не обов'язковий)

Technical Requirements

• Strong experience with ReactJS (hooks, state management) at least 2 years
• Knowledge of JavaScript / TypeScript
• Experience working with REST APIs, fetch, FormData, and handling Blob / File objects
• Understanding of in-memory data flow (no need for backend or file storage)

Bonus:

• Familiarity with image processing APIs (e.g. remove.bg, Imgix, Cloudinary)
• Experience building Chrome Extensions

We are looking for a motivated and enthusiastic Junior Specialist to join our team. This is an excellent opportunity for someone who is eager to learn, develop new skills, and gain hands-on experience in a professional environment

Candidates from Warsaw, Poland only

What you will do

• Develop and maintain web and mobile applications
• Implement new features and functionality based on product requirements
• Write clean, maintainable, and scalable TypeScript code
• Optimize application performance, responsiveness, and user experience
• Participate in code reviews and follow development best practices
• Troubleshoot, debug, and resolve technical issues
   

Requirements

• Strong experience with React and TypeScript
• Solid understanding of modern JavaScript (ES6+)
• Experience with component-based architecture, hooks, and state management
• Familiarity with REST APIs and backend integration patterns
• Experience with Git and collaborative development workflows
• Strong attention to detail and commitment to writing high-quality code
• Sense of ownership and responsibility for delivered tasks
• Proactive, reliable, and able to work independently when needed
• English level: B1 or higher (ability to read documentation and communicate within a team)

Additional information

• React Native experience is a plus
• Use of AI tools (e.g., Claude, Kiro, MCP) is welcome and encouraged for productivity
• Candidates should be able to explain, reason about, and write code independently, not solely rely on AI-generated solutions

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.
• Previous experience in a Lead Frontend Engineer / Tech Lead role or strong technical leadership experience.
• Experience mentoring engineers, driving technical decisions, and taking ownership of frontend architecture.
• 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!

!This vacancy requires office attendance in Kyiv

Responsibilities:

• Develop and maintain a high-load, mobile-first React SPA within a micro-frontend architecture
• Collaborate closely with product, design, and other engineering teams to translate product and technical needs into shipped features
• Drive your features from development to production (shift-left): validate your changes on staging and pre-prod, run automated tests, and release them autonomously
• Proactively lead improvements and tuning of existing solutions
• Share expertise and knowledge with your teammates through reviews and pairing

Requirements:

• At least 7 years of commercial experience in JavaScript (ES6+) / TypeScript, including a minimum of 2 years working in a product company / product-focused environment
• At least 5 years of commercial experience with React (hooks)
• Strong experience with state management using Redux, Redux Toolkit and Zustand
• Hands-on experience with build tooling 
• Webpack and/or Vite
• Strong knowledge of modern CSS, semantic HTML and SASS/SCSS

• Intermediate English or higher

   

   

  Nice to have

• Experience with micro-frontend architecture (Module Federation)
• Experience building and optimizing high-load / high-traffic applications
• Experience writing automated tests with Playwright

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, official public holidays and 100% sick leaves coverage;
• Opportunities to make a difference, to develop and grow;
• Regular corporate celebrations, team buildings and fun activities;
• Comfortable office in the city center. Our Kyiv office is open 24/7 with all safety and health measures in place.

Location: Remote (EU candidates only)

About the Project

We are looking for an experienced Strong Middle / Senior Frontend Developer to join a high-traffic e-commerce project. The role focuses on building scalable, high-performance web applications with a strong emphasis on accessibility, performance, and user experience.
 

Must-have Skills

• 7+ years of commercial experience with React
• Strong expertise in TypeScript
• Hands-on experience with Next.js
• Experience writing and maintaining automated tests
• Good understanding of WCAG (Web Content Accessibility Guidelines)
• Experience optimizing Core Web Vitals
• Proven experience working on high-traffic e-commerce applications
• English level B2+ or higher

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.

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 looking for a Senior Frontend Engineer to join our client's engineering team in a long-term, fully remote engagement. This is a full-time opportunity for an experienced and independent engineer who enjoys taking ownership, solving complex frontend challenges, and building high-quality user experiences with modern React technologies.

This role is ideal for someone who thrives in a fast-paced environment, is comfortable working autonomously, enjoys researching and solving problems independently, and embraces AI tools while maintaining a strong understanding of the underlying technologies.

Key Responsibilities:

• Design, develop, and maintain scalable frontend applications using React and TypeScript
• Build intuitive, responsive, and high-performance user interfaces
• Manage complex application state using Redux
• Develop reusable UI components with Material UI and MUI X
• Take ownership of frontend architecture, technical decisions, and code quality
• Collaborate closely with product managers, designers, and backend engineers to deliver new features
• Conduct independent research to evaluate technical solutions and recommend best practices
• Leverage AI tools to improve development workflows while maintaining a deep understanding of the underlying implementation
• Contribute to code reviews and continuous improvement initiatives

Requirements:

• 5–7 years of commercial frontend development experience
• Strong hands-on experience with React, TypeScript, and Redux
• Solid experience building applications with Material UI and MUI X
• Ability to work independently with minimal supervision and take ownership of deliverables
• Strong analytical and problem-solving skills with the ability to perform independent technical research
• Comfortable incorporating AI tools into daily development workflows while understanding how the technology works behind the scenes

• Excellent communication skills and fluent English, both written and spoken

   

Nice to Have:

• Experience working in startup or scale-up environments

What We Offer:

• Fully remote, long-term opportunity
• High level of ownership and autonomy
• Collaborative engineering culture with experienced teammates
• Interesting product challenges using modern frontend technologies
• Opportunity to work in an AI-driven engineering environment
• Competitive monthly compensation based on experience and expertise

How to Apply:

Send us a short intro about yourself and your relevant experience - and tell us your favourite ice cream flavour (ours is cherry🍒)

The platform is a long-established, business-critical application built using Objective-J and the Cappuccino Framework. The next phase of the programme is focused on gradually migrating the frontend to React.

The client isn’t expecting someone who’s spent the last five years writing Objective-J. They’re looking for a strong React engineer who is comfortable understanding an existing Objective-J/Cappuccino codebase, making changes where required, and helping drive the migration to React over time.
 

What you’ll need:

• Strong commercial experience with React
• Excellent JavaScript / TypeScript skills
• Experience working on large enterprise or legacy applications
• Experience modernising or migrating legacy systems
• Exposure to Objective-J, Cappuccino or similar legacy frontend technologies 

Employment type: gig-contract (Diia City)
Working hours: 40 hours/week
Paid vacation: 18 working days per year
Sick leave: up to 5 paid days per year
Public holidays: 7 paid national holidays

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.

Ми розробляємо automation‑платформу для продавців Amazon (аналітика, інтеграції, управління бізнес‑процесами).

Необхідні знання та навички

— 1+ рік комерційного досвіду з React.js
— комерційний досвід розробки SPA на React
— впевнене володіння TypeScript
— практичний досвід роботи з React Hooks
— досвід роботи зі state‑менеджментом Redux Toolkit, Zustand, MobX
— досвід інтеграцій з REST API, GraphQL
— досвід роботи з авторизацією JWT, OAuth на frontend
— впевнене володіння HTML5, CSS3, SCSS, адаптивна верстка
— досвід оптимізації продуктивності lazy loading, code splitting, оптимізація рендерингу
— досвід роботи зі збірниками Vite, Webpack
— досвід написання unit tests, e2e tests Jest, React Testing Library, Cypress
— розуміння принципів frontend‑архітектури
— досвід роботи з Docker, CI/CD, Git
— англійська B2 

Ми пропонуємо

— роботу над SaaS‑продуктом у сфері e‑commerce
— участь у прийнятті технічних рішень
— віддалений формат

Розгляд CV здійснюється з урахуванням відповідності вимогам вакансії.
Компанія може уточнювати або запитувати підтвердження заявлених компетенцій.

Position name: Senior React Native developer
Level: Senior Only
Hard skills requirements (including years):

• A minimum of 6 years developing React Native applications.
• Experience with Expo, Expo Router, Tamagui UI Toolkit, Zustand/Tanstack Query for state management

Soft skills requirements:

• Ability to work independently and collaboratively in a team environment.
• Excellent problem-solving skills and attention to detail.

Office/Remote: Remote
Project tasks:

• Pixel-perfect replication: Replicate the Lovable mobile site exactly. Every hex code, shadow, and frosted-glass effect must match the high-end web design 1:1. We do not compromise on design quality.
• AI-Streamlined Porting: Leverage Claude/LLMs to "convert" our React web logic and Supabase calls into high-performance React Native code to maintain startup speed.
• High-end Performance : Implement a vertical video feed using FlashList and the New Architecture to ensure 60-120fps scrolling with zero "jank."

English level: Upper

Requirements:

- html/css, javascript, react, git, intermediate english level

Nice to have:

- redux, typescript, graphql, react hooks, nodejs

Responsibilities:

- Collaboration with designers and product management and other developers

- Development of the new features

- Support and fix the bugs of the existing application

- Cover the features with the tests

- Adhere to code standards and best practices

We offer:

- Remote work

- Flexible working hours and adjustable work/life balance

- Communication with customer and team in English

- Annual performance appraisals

- Projects that use advanced, cutting-edge technologies

It's mandatory to have a beautiful code on GitHub to get to the interview. During the 30 minutes interview there will be: introduction, english check, tech questions and live-coding.

Про компанію AxelsFor startups in Europe and the USA that are
- not satisfied with their developers or find it risky to work with freelancers
- find it difficult and expensive to hire on a local market
- find it challenging to manage their development team

Axels helps to find Ukrainian talent with React / Vue.js / Angular / Node.js focus and organize remote easy-to-manage development process.

Axels differ from others due to
- a friendly team, mentorship
- focus on specific trendy technologies
- approach with following strict development standards
- quick recruitment process.