Вакансії React Developer

Code-Room looking for a JavaScript (ReactJS) developer in the Kyiv office.

Responsibilities:

• Develop user interface and interactions using ReactJS.
• Building reusable components and front-end libraries for future use.
• Take ownership of components and be responsible for the sub systems right from design, code, testing, integration, to deployment, and further enhancements.
• Generate Restful Services specifications and coordinate with other development teams for implementation.
• Delivery of all assigned tasks on time.
• Report status, intimate any risks identified with the task delivery to team lead.

Qualifications:

• At least 3 years of hands-on experience in building applications in ReactJS and developing web applications experience;
• Solid understanding of ES6 standards;
• Hands-on web development experience: XML, JSON, HTML5, CSS, Ajax etc.;
• Proficient understanding of code versioning tools, such as Git;
• Experience with PHP based CMS/Laravel is a plus;
• Strong understanding of e-commerce;
• Proficiency in JavaScript, and the JavaScript object model;
• Understanding of DOM Events life cycle;
• Knowledge of modern authorization mechanisms, such as JWT is a plus;
• Best practices in building ReactJS applications using Redux;
• Agile/Scrum methodology;
• Working hand in hand with technical leads on designs and mappings that enable data driven, scalable systems;
• Must be passionate, self-driven and resourceful, creative problem solvers with can-do attitude.

We want to create the best cryptocurrency trading experience possible for our customers. That takes true innovation, a strategic vision and purpose. We are a small team that truly value passion and determination with a culture that challenges norms while fostering experimentation and personal growth. We use the best tool for the job and are not afraid to try new ones. Our industry is complex and fascinating, we are dealing with huge scale. Our platform will need to scale further to support more customers and more complex scenarios.

Responsibilities:

This is a great opportunity for an enthusiastic technology leader to join the project. As a Full Stack Developer, you will develop and oversee innovative software. You will motivate and provide expert technology advice to widen the propositions in a fast-paced agile programming process. Furthermore, you will mentor a team of junior developers and allow the direction of all future blockchain development as the company continues to grow.

Requirements:

• 7+ years of professional experience (A technical assessment will be required);
• Senior-level experience in the front-end (React) and back-end (Node, Express, Mongo);
• Ability to create clean, modern, testable, well-documented code;
• Experience of producing and consuming RESTful APIs;
• Experience of Agile practices, particularly SCRUM and Continuous Integration;
• Familiar with modern web development best practices;
• Knowledge of cloud computing. Ideally AWS, Lambda and Kubernetes;
• English fluency, verbal and written;
• Personality traits: Professional, problem solver, proactive, passionate, team player.

Bonus skills:

• Familiarity with the Cryptocurrency market or trading;
• Experience working with Big Data and Financial web apps.

Apme is a product company that develops applications to control and improve people’s health and wellbeing. Now we are looking for a full-time Front-end developer to join our team.

You will be responsible for:

• Developing the latest user-facing features using React.js.
• Designing a modern highly responsive web-based user interface.
• Building reusable components and front-end libraries for future use.
• Translating designs and wireframes into high-quality code.
• Learn and understand user interactions.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers.

Requirements:

• Proven work experience in web development for 2 years.
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Thorough understanding of React.js and its core principles.
• Familiarity with RESTful APIs.
• Familiarity with HTML/CSS.
• Familiarity with FireBase.
• GITLab.
• Knowledge of modern authorization mechanisms, such as JSON Web Token.
• Familiarity with modern front-end build pipelines and tools.
• A knack for benchmarking and optimization.

We are looking for an experienced Full Stack JavaScript Developer with deep knowledge of React.js, Next.js and Node.js to join our team.
This role is ideal for a candidate with extensive experience in application architecture design and eCommerce integration.

Skills to succeed in this role:

• 4+ years of professional experience in software development;
• Expert level JavaScript, React.js, Node.js and in-depth knowledge of Web development;
• Deep knowledge of Next.js and Node.js (the most important frameworks for this position);
• Experience working with HTML/HTML5, CSS (SASS/Less), GraphQL;
• English proficiency B1 and above, both written and spoken;
• Extensive experience in web application architectural design;
• Experience with integration and customization of Shopify/BigCommerce platforms will be a big plus;
• Willingness to actively work with eCommerce;
• Analytical abilities, solving complex problems.

The ideal candidate should be self-driven, ambitious and entrepreneurial. They must be able to balance technical debt and productivity both individually and at the team level. They are eager and able to learn quickly and to improve. Excellent communication skills and a team player mentality are necessary.

Required qualification and skills:

• Master's degree in a technical or engineering field.
• Expert in JavaScript, React, Redux.
• Excellence in algorithms and data-structures.
• At least 2 years of Software engineering experience with Unit Testing, Integration Testing, Continuous Integration, Code-Style Guidelines, Continuous Development and Version Control System in a product-oriented professional working environment.
• Experience testing Front-End and Back-End web-applications.

Desirables:

• Knowledge using AWS or Google Cloud.
• Experience designing large-scale applications.
• Experience using audio or video processing algorithms.
• Technical leadership experience.
• Experience coding in C++ and/or Python.

Required Skills and Qualifications:

• Over 4 years of development experience;
• Proficiency in React;
• Experience with HTML/CSS/Sass, Webpack, W3 standards;
• Ability to write clean and self-documenting code;
• Ability to demonstrate strong problem-solving skills.

Will be plus:

• Experience with TypeScript;
• Experience with Node.js platform.

Axon is looking for an experienced React Native Engineer.

About the project

Axon is looking for an experienced React Native Engineer to join the development of a workout tracking system that helps people with physical training and rehabilitation.
The system consists of iOS and Android applications, Web Portal and Admin panel. Applications work in pairs with 2 IoT devices.
By using our devices professional and amateur athletes, trainers, and physical coaches can track their sporting achievements: a number of metrics helps to understand what physical shape a person is in. The product is used by famous athletes and physiotherapists both in Britain and other countries. The current team consists of 12 Specialists, who will gladly assist with your on-boarding on the Project.

What you need for this position

• About 3 years of relevant commercial experience in React Native development;
• Experience with mobile/web/backend development within the modern JS ecosystem (server-side development is about 10-20% of all work, because it's mostly used for saving and retrieving data);
• Most of the previous Projects is done in the mobile applications;
• Good Math skills for live data processing is and advantage;
• Experience in working with Agile methodology;
• Experience using the Git version control system;
• Upper-Intermediate level of English for communication with UK colleagues.

What you will be doing

• Full-stack development
• Mobile: React Native, Expo
• Web: React, create-react-app
• Backend: Firebase (Firestore, Functions, Authentication)
• Data processing (pure TypeScript + math/physics)

Subsystems:

• Mobile application for athletes and their trainers
• Web application for trainers, physiotherapists, and admins
• Serverless backend functions, mostly CRUD to Firestore.

Our client is a global leader in colour measurement and colour management, offering hardware, software, and services for measuring, formulating, and matching colour.
You will join an organisation which is innovative, fast-paced, result-oriented and a classic winner in its market segment. Your solutions will be part of world-famous brands used by millions of people. A unique business management culture will ensure that the company outperforms all its competitors on a regular basis. You will enjoy permanent employment and truly competitive salaries. Embedded in a large group of highly skilled and intelligent colleagues, you will have the opportunity to develop in multiple directions like software architecture, project management, agile coaching, etc. without the need to move abroad.

Essential Skills:

• University degree related to Software Engineering.
• 5+ years of experience with JavaScript development and related frameworks like React.js and/or ideally Node.js.
• Deep expertise with web applications and web technologies (HTML, CSS, etc.) particularly in the context of e-commerce.
• Deep functional knowledge or hands-on design experience with web services.
• Concrete experience with relational and NoSQL databases.
• Expertise in software architecture, design patterns and OO programming.
• Marked affinity to new technologies (e.g. Progressive Web Apps, GraphQL).
• Solid understanding of cloud infrastructure (e.g. AWS) including pricing models and deployment models.
• Solid understanding of agile methodologies like Scrum.
• Team-orientated personality open to challenges.
• Good spoken English (B2-C1).

Duties:

• Join a development team of over 40 engineers in Europe and USA.
• Participate in the definition of the architecture of new cloud projects for a high-performance web presence with millions of hits.
• Work as a senior developer in multiple small and large projects.
• Analyse and evaluate existing platforms and decide about their re-use in new products.
• Participate in the scoping, management, implementation and optimisation of projects.
• Keep the organization informed and updated on new and emerging (cloud) technologies.
• Collaborate in a self-organised international Scrum team of software developers.
• Contribute to the life-cycle management of existing solutions.

Impressit is looking for a highly skilled Senior/Lead React Engineer for our British customer - one of the world's largest oil and gas companies. An exceptional Senior React and UI Engineer to join our dynamic team, contributing to developing and enhancing our cutting-edge web applications. The ideal candidate will possess extensive experience in frontend development, particularly with React, and will collaborate closely with designers, backend developers, and product managers to deliver seamless, high-performance user interfaces. As a Senior React and UI Engineer, you will be instrumental in driving the evolution of our UI architecture, ensuring our applications are intuitive, responsive, and visually appealing.

What you will do:

• Lead the development of sophisticated, high-quality web applications using React and related technologies.
• UI/UX Collaboration: Work closely with UX/UI designers to translate design prototypes into functional, user-friendly interfaces.
• Optimize web applications for maximum speed and scalability, ensuring a smooth user experience across devices.
• Maintain high code quality standards through code reviews, unit testing, and adherence to best practices in frontend development.
• Design and implement reusable UI components and libraries to streamline development and ensure project consistency.
• Expertly manage application state using modern state management libraries (e.g., Redux, Context API).
• Cross-Functional Collaboration: Collaborate effectively with backend developers to integrate frontend components with server-side logic and APIs.
• Stay up-to-date with the latest industry trends, technologies, and best practices, and proactively apply this knowledge to improve our development processes and UI architecture.
• Participate in Agile ceremonies and contribute to sprint planning, backlog grooming, and daily stand-ups to ensure the timely delivery of high-quality features.
• Mentorship and Leadership: Mentor junior developers, providing guidance and fostering a culture of continuous learning and improvement.

What we expect:

• 5+ years of hands-on experience as a Frontend Engineer;
• Extensive React Experience: Demonstrable expertise in building complex web applications with React, including hooks, context, and functional components;
• Proficient in JavaScript (ES6+), with a deep understanding of modern JavaScript frameworks and libraries;
• Proficiency with HTML/CSS: Advanced skills in HTML5, CSS3, and pre-processors like SASS/LESS;
• Version Control and CI/CD: Experience with GIT for version control and setting up CI/CD pipelines for automated testing and deployment;
• Familiarity with Design Systems: Experience working with design systems and component libraries such as Material-UI, Ant Design, or Bootstrap;
• Web Performance and Security: Knowledge of web performance optimization techniques and security best practices;
• Excellent Communication Skills: Ability to clearly articulate technical concepts and collaborate effectively with cross-functional teams;
• Upper-intermediate or a higher level of English;
• Bachelor’s Degree in Computer Science or Related Field: Preferred but not required, with equivalent work experience considered.