Вакансії React Developer

Our team is growing and we’re looking for talented Node.js developers. You will work in a dynamic environment, having the chance to impact the product aspects using multiple scalable, reliable platforms with several products. We are looking for developers with hands-on back-end and front-end experience that feel comfortable working in agile process and adhere self learning.
Our customer is a rapidly growing startup from Tel Aviv, that is building an ultimate Vacation Rental Platform to support services for Airbnb, Booking.com, Agoda, TripAdvisor, Expedia and other property providers at vacation rental market.
The platform is developed using the latest technologies and frameworks, Node.js, Mongo, RabbitMQ, and Redis on the server side, and React, Redux on the client side. We promote continuous learning and are open to learning and implementing new things all the time.
If you are looking for an interesting product and enjoy being challenged, this is your place.
This position is 90% FE and 10% BE (although strong backend knowledge is needed!)

What you will do

• Implement cool new features, services, and APIs.
• Write reusable code and libraries.
• Optimize the application for maximum speed and scalability.
• Implement security and data protection.
• Write tests and metrics monitoring modules.
• Ready to work with on-call duties.

What you need for this

• Proficiency in JavaScript and TypeScript, at least 5 years of professional experience with web-enabled commercial application development (50% FE, 50% BE in the past experience).
• Solid experience working with NodeJS (ExpressJS).
• Experience with ReactJS. / Redux.
• Experience with unit/integration tests using: jest, mocha, nock, chai, sinon.
• Experience with Microservices Architecture and message brokers.
• Experience with REST.
• Experience with the development of microservices communication via queues (RabbitMQ, ActiveMQ, Kafka).
• Experience with NoSQL databases (e.g., MongoDB, Redis).
• Have a great product sense and software design sense; excellent technical judgment and architecture experience.
• Passionate about technology, enjoys solving complex problems, and learning new technologies.
• A team player with strong communication skills.
• Upper-intermediate, advanced written and spoken English.

Our client started as a small team of developers determined to bring trust and transparency to car shopping. Since then, their innovation and go-to-market acceleration history have driven industry-leading growth.
The product is the largest and fastest-growing automotive marketplace, and they have been profitable for over 15 years. We are here for them to fulfill their mission and give people the power to reach their destination.

If you are

• Experienced with 5+ years working with modern frontend technologies such as React, Remix, and TypeScript
• Possessing 1+ year of experience with Spring and Java
• Proficient in developing well-structured, performant web applications using modern JavaScript frameworks like React and Remix
• Knowledgeable in JavaScript fundamentals and design patterns
• Skilled in CSS and HTML5
• Familiar with RESTful APIs and how to integrate them into frontend applications
• Analytical with strong problem-solving skills and attention to detail
• Clear in communication and collaborative in approach
• Independent in execution while aligned with team goals
• Passionate about building a great UI/UX experience through continuous improvements and testing, including E2E and unit tests

And you want to

• Collaborate with engineers, designers, product managers, and data analysts to take ideas from concept to technical design to implementation to testing to measurement
• Be deeply engaged in the full development lifecycle, including designing, developing, testing, deploying, maintaining, monitoring, and improving software
• Write clean, well-tested, and efficient code across the stack
• Pitch in wherever there will be the greatest impact, from building consumer-facing features to integrating with key partners or running A/B tests
• Contribute to architectural discussions and technology selection
• Participate in code reviews and knowledge sharing with the team
• Help troubleshoot production issues across frontend and backend systems

ELEKS Software Engineering and Development Office is looking for a Senior React Developer in Lviv, Ternopil, Ivano-Frankivsk, Kyiv, Chernivtsi, Rivne, Lutsk. Uzhgorod, Zhytomyr, Khmelnytskyi, or Vinnytsia.

About project

Creation of a register of contaminated (mined) territories of Ukraine. Implemented with the support of EGAP.

Requirements

• 4+ years of experience with React
• Deep expertise in React, UI architecture, and user experience design
• Experience with Leaflet, ELK, and Teleric Reporting would be a plus
• At least an Upper-Intermediate level of English

Responsibilities

• Design, develop, and maintain reliable software in line with technical requirements, focusing on performance and availability
• Analyze requirements, review designs, and estimate user stories following project methodology (Agile, Waterfall, etc)
• Proactively propose code refactoring and optimization improvements according to the best software development practices and coding standards
• Help maintain and improve high-quality standards within the developer community by sharing knowledge, conducting tech talks, and participating in the internal promotion verification process
• Stay up-to-date with modern technology and obtain professional certifications
• Support less experienced developers by providing training, distributing, and monitoring tasks

We are seeking a highly skilled Front-End Developer with strong UX design experience, ideally with a background in Cybersecurity or Network Infrastructure. The candidate will play a key role in shaping the UX and implementing the UI of an industry-standard interactive geo map for the cybersecurity visualization platform.
This hybrid role requires expertise in ReactJS for development and Figma for UX/UI design, with an ability to bridge user experience goals with technical implementation. Experience designing products or visual interfaces for security vendors or similar technical domains is strongly preferred.

Experience / Skills required:

• 3+ years of experience in Front-End Development with a focus on ReactJS
• 2+ years of UX/UI design experience using Figma or similar tools
• Proven experience building data-driven visualizations or geo maps
• Strong portfolio of user-centered designs, particularly in technical or security domains
• Familiarity with web performance optimization, responsive design, and cross-browser compatibility
• Experience or familiarity with Cybersecurity, Network Infrastructure, or Security Visualization tools
• Ability to understand and visually communicate complex cyber concepts like threat mapping, network flow, geolocation of assets, etc
• Upper-Intermediate English and better

Good to have:

• Experience with D3.js, Leaflet, Mapbox, or other data viz/geo mapping libraries
• Familiarity with secure UI/UX best practices
• Prior work with security vendors or SOC tools (e.g., SIEM, NDR, XDR dashboards)
• Understanding of APIs and working with real-time data streams

Responsibilities:

• Lead the UX design process for a highly interactive map experience — from user research and wireframes to prototypes and final mockups using Figma
• Implement responsive, high-performance user interfaces in ReactJS, with a focus on usability, accessibility, and performance
• Collaborate with product managers, back-end developers, and cybersecurity SMEs to understand data and UX context
• Translate complex technical and cybersecurity concepts into intuitive UI workflows and visualizations
• Iterate on designs based on feedback, user testing, and analytics
• Maintain consistency with branding and UX standards across the product

A company tackling loneliness is seeking passionate teammates! They've built a powerful evidence-based community that empowers organizations to fight the negative impacts of social isolation on health, costs, and engagement. Their secret weapon? Curated connections based on shared experiences, fostering personalized peer support. With over a million people already finding connection through their platform, they're looking for individuals who share their mission to create a significant product that improves lives. Is this your chance to make a real difference?

What makes you a great fit

• At least 5 years of experience in the development of cloud-based products
• Experience working in multi-disciplinary teams
• Experience working with task management software (e.g., Jira)
• At least 2 years of managing/defining technical activities of other people
• Strong understanding of good user experience (UX) principles and the ability to implement UI designs effectively
• Good understanding of architectural and design patterns for both client and server
• Working experience with any kind of databases, preferably NoSQL
• Level of spoken English: at least an upper-intermediate

Experience with:

• Client-side technologies:
  • Must: React, SCSS, CSS
  • Bonus: Next.js, MobX, Socket.IO/Pusher
• Server-side technologies:
  • Must: Node.js
  • Bonus: MongoDB, MongoDB Atlas, Express, Mongoose
• Programming languages (must): TypeScript and JavaScript
• Bonus cloud tech: Firebase, AWS cloud services (ECS, CloudFront)
• Local development tools:
  • Must: npm, ESLint, Prettier
  • Bonus: IntelliJ IDEs, Docker, Postman
• Development cycle tools: GitHub
• Monitoring tools (e.g., Kibana, Sentry, Datadog, NewRelic, etc.)

Your day-to-day in this position

• Develop and maintain full-stack features using React, Node.js, and TypeScript
• Collaborate with product, design, and QA teams
• Review code, mentor teammates, and help define technical tasks
• Implement a clean, responsive UI based on UX designs
• Build scalable backend services and work with NoSQL databases (preferably MongoDB)
• Use modern development tools (GitHub, ESLint, Docker, Postman, etc.)
• Monitor performance and troubleshoot using tools like Sentry or Datadog
• Continuously improve code quality, processes, and user experience
• Participate in agile ceremonies and team planning

Requirements

• 2-4+ years of relevant experience in the IT industry, strong knowledge of JavaScript, including ECMAScript;
• 2-4+ years experience with React;
• Experience with TypeScript;
• Experience with GraphQL;
• Experience with WebSockets (socket.io) and Canvas (fabric.js) ;
• Experience with GIT and branching workflows;
• Experience with Redux/Redux Toolkit;
• Familiar with unit testing and integration testing;
• English: Upper-intermediate.

Would be a plus

• Experience with WebRTC;
• Experience with Webpack, Mob .

What you will do

• Develop complex, modern client-side experiences using React.JS, JavaScript, TypeScript;
• Work on a small, agile, cross-functional development team to deliver high-quality features;
• Create, modify, develop and implement complex software functionality, applications, and services based upon requirements and architectural design;
• Implement new features, evolve existing ones, and fix bugs, delivering performant, testable, maintainable, high-quality code;
• Drive the adoption of best practices, design patterns and coding standards across the team;
• Collaborate with other team members and with cross-functional teams and stakeholders across geographies;
• Participate in, and potentially lead, estimation and planning sessions;
• Conduct technical interviews for front-end engineers;
• Provide a positive, polite, and open-minded style of communication and mentorship;
• Good verbal and written English language skills.

Our Client is the leader of the US Broadcasting Market and one of the biggest companies on that is providing Broadcasting Media Entertainment to users on OTT.
With a user base exceeding 85 million globally, Client’s products are known for their seamless integration and intuitive design.

Requirements

• Proficiency in TypeScript, React.js
• 4+ of commerical experience in the JavaScript/Web field.
• Strong knowledge and experience with micro-services, RESTful web services and API’s.
• Hands-on experience with AWS or other clouds.
• Familiarity with GitLab for version control and CI/CD.
• Experience with CSS and CSS frameworks.
• Experience with Material UI.
• Solid understanding of front-end build tools such as Webpack, Babel, etc.
• Excellent problem-solving skills and strong attention to detail, a proactive approach.
• Ability to independently manage tasks based on defined objectives.
• Excellent communication and collaboration skills.
• Bachelor’s degree in Computer Science, Engineering, or related field (preferred).

Would be a benefit:

• Node.JS experience
• Python experience

Job responsibilities

• Take ownership of the full software development lifecycle, from planning and design to implementation, testing, and deployment
• Collaborate with product managers and stakeholders to define project requirements and priorities
• Create scalable and maintainable solutions using TypeScript, and React.js
• Conduct thorough code reviews to ensure code quality, performance, and adherence to coding standards
• Lead by example in writing clean, modular, and well-documented code
• Drive continuous improvement initiatives, identifying opportunities to optimize processes and technologies
• Stay abreast of industry trends and emerging technologies, and advocate for their adoption when appropriate
• Provide technical leadership and guidance in architectural decision-making and technology selection

N-iX is looking for an experienced Senior Java Full Stack Engineer to join our team at Integrated Shipping Services, where innovation is seamlessly integrated with a strong focus on customer satisfaction in the shipping industry.
We're known for our unique approach, concentrating on niche markets where we can provide exceptional service and clear advantages to customers globally. Our global network is meticulously designed for both efficiency and reliability, driven by a mission that places customer needs at the core of every decision.
At Integrated Shipping Services, you will have the opportunity to work with a modern and evolving technology stack on a long-term, stable project that ensures both professional security and personal growth. You will thrive within a culture that encourages the sharing of ideas and celebrates collaboration. Furthermore, you will contribute to the development of innovative solutions, working with cutting-edge code and moving away from outdated systems.
We offer a flexible partnership model with other carriers, presenting a refreshing alternative in today’s dynamic market environment. Come contribute to our mission where your work directly enhances our global service excellence.

Responsibilities:

• Hand-on full stack development of innovative applications
• Owning the entire development cycle, including design, architecture, development, etc.

Requirements:

• 5+ years of experience in Full Stack Development
• 5+ years of experience in the following technologies: Java, Spring
• Experience with Functional Programming and Java Streams
• 2+ years of experience in front-end development with React
• Experience with developing a reactive UI (Reactive JS)
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins
• Experience in development in Kotlin – an advantage
• Experience in designing, developing, and deploying cloud/hybrid-based solutions
• Experience in developing and deploying in Container based environments (Kubernetes, Cloud foundry)
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker
• Self-starter with the ability to appropriately priorities and plan complex work in a rapidly changing environment
• Versatility and capability to switch easily between different tasks and technologies
• Experience in assessing a broad range of information solutions and products
• Strong critical thinker with problem solving aptitude
• BS degree in Computer Science or equivalent combination of education and experience
• Ukrainian language Advanced or higher.
• Good English – verbal and written

What project we have for you

Our client is a fast-growing startup that is on a mission to change the deskless work experience. They created a management platform that allows to easily manage all operations, from scheduling to payroll. With over 3.8B deskless workers across the globe, the challenges and potential are endless. Product includes various features: scheduling and time tracking, task management, communication management, chat, knowledge base, help desk, HR & people management, recognition & rewards, documentation, training etc.
We are looking for an experienced Senior Product Fullstack Developer, to further develop the management platform. You will build a product that customers love and use on a daily basis, a product that is fun to use, fast, reliable and scalable. You will tackle a wide array of problems from developing a UI that is responsive to the user and fun to choosing the right backend technologies to solve specific product use cases at scale.

What you will do

• Lead the design, development, and maintenance of complex Python applications.
• Collaborate with product management and other stakeholders to define technical requirements and deliverables.
• Write clean, efficient, and self-documented code.
• Implement automation tests.
• Participate in code reviews to ensure code quality and maintainability.
• Monitor application performance and provide optimization recommendations.
• Stay up to date with the latest technologies and industry trends.
• Drive the continuous technological improvement process.

What you need for this

• 5+ years of experience working with frontend and backend technologies at scale.
• Candidates from product companies with startup mindset are preferrable
• 5+ years of experience with Python
• 3+ years of experience with React with MobX
• Experience in a wide variety of technical tools such as different DB types, queues, design patterns, and architectures.
• Mongodb, Mysql – Expert level
• Message broker: Rabbit MQ – Expert level
• Experience both with AWS and Azure is needed
• Ability to understand the pros and cons of different architecture decisions and choose the best option.
• Experience scaling services to millions of users.
• Understands the complexity of web technology, constraints, UI/UX.
• Experience with State Management libraries (mobx, redux)