Вакансии React Developer

Now we’re expanding and welcome talented Full-Stack (React.js + Node.js) Developer to join our team.

Responsibilities:

• Design, develop, and maintain web applications using Node.js and React.js;
• Build and optimize APIs and services, ensuring high availability and performance;
• Work with non-relational databases (e.g., MongoDB) to store and manage data efficiently;
• Collaborate with cross-functional teams to define and implement features that align with business goals;
• Participate in architectural decisions and development from concept to deployment;
• Ensure code quality through testing, code reviews, and best practices.

Qualifications:

• At least 5 years of experience with Node.js;
• At least 5 years of experience with React.js;
• At least 3 years of experience with non-relational databases (e.g., MongoDB);
• Excellent English communication skills, both written and verbal;
• Demonstrated ability to work independently and as a team player.

Big Pluses:

• Experience working on high-availability web platforms;
• Proven experience developing REST APIs;
• Familiarity with AWS cloud services;
• Proficiency in Python.

Now we’re expanding and welcome talented Senior Full Stack Engineer to join our team.

About the project:

Startup on a mission to revolutionize how we build and interact with modern web applications. We envision a future where web apps adapt seamlessly to user needs and trends – without reopening the code or redoing work. To achieve this, we’re developing next-gen infrastructure, a front-end library, and a feature-rich dashboard. We’ve recently closed a funding round and are expanding our team to turn this vision into reality. As part of our core team, you’ll contribute to open-source projects, work with cutting-edge technologies, and build scalable, high-performance systems.

Responsibilities:

• Full Stack Development: Design, develop, and maintain front-end and back-end systems for our projects.
• Research & Innovation: Contribute to ongoing research of new technologies, frameworks, and methodologies to continuously improve our product and engineering practices.
• Open Source Contributions: Actively contribute to our open-source projects and engage with the community.
• UI/UX Development: Build and maintain a flexible, high-performance UI library with a strong focus on user experience.
• SaaS Dashboard: Develop rich, interactive, and data-driven dashboards with advanced features and capabilities for a seamless user experience.
• Data Engineering: Work with MongoDB and AWS Big Data tools to manage and optimize data workflows and storage.
• Collaboration: Work closely with the CTO, product managers, and designers to ensure seamless integration of the tech stack and alignment with overall business goals.

Qualifications:

• 5+ years of experience in full-stack development, with expertise in both front-end and back-end technologies.
• Strong expertise in front-end frameworks like React, Vue.js, native JavaScript, and Typescript.
• Back-end proficiency in NodeJS, MongoDB, AWS (including services like Lambda, S3, DynamoDB, etc.), and experience with cloud architecture and big data solutions.
• Proven experience building and maintaining scalable, high-performance, and maintainable web applications.
• Deep understanding of web development principles, including RESTful APIs, responsive design, security best practices, and performance optimization.
• Experience contributing to open-source projects is highly preferred.

Nice to Have:

• Experience with additional front-end frameworks like Angular or Svelte.
• Familiarity with other databases or NoSQL technologies (e.g., PostgreSQL, Cassandra, Redis).
• Knowledge of CI/CD pipelines and DevOps practices.
• Previous startup experience, especially in a fast-paced, agile environment.

The CHI Software team is not standing still. We love our job and give it one hundred percent of us! Every new project is a challenge that we face successfully. The only thing that can stop us is... Wait, it’s nothing! The number of projects is growing, and with them, our team too. And now we need а Full-Stack Developer (React+Kotlin).

Responsibilities

• Develop, maintain, and improve frontend systems using TypeScript, React, and modern frontend technologies.
• Develop and optimize backend services with Spring Boot, Kotlin, PostgreSQL, and AWS, and related backend technologies.
• Maintain CI/CD pipelines and leverage IaC (Infrastructure as Code).
• Maintain and develop features across various systems while ensuring scalability and robustness.
• Collaborate with cross-functional teams, understanding requirements, and promoting knowledge sharing and collaboration.
• Make data-driven decisions to enhance system performance, optimize processes, and support business objectives.
• Own projects end-to-end, driving them from ideation to implementation and delivery.

Requirements

• 4+ years of experience with a strong focus on frontend development using TypeScript, React, and modern technologies.
• Proficiency in Kotlin, Spring Boot, PostgreSQL, and AWS for backend development.
• A solid understanding of testing principles and methodologies to ensure reliable, high-quality code.
• Familiarity with observability practices, monitoring, and alerting systems.
• Good knowledge of DNS, CDNs, and distributed systems.
• Understanding of accessibility (a11y) principles and best practices.
• Proficient in version control, especially with GitHub.
• Data-driven mindset with a focus on advocating for the best technical solutions.
• Self-driven with a strong sense of ownership and the ability to lead projects and drive them to completion.
• A collaborative team player with excellent communication and knowledge-sharing skills.

We are seeking a Senior Frontend Engineer to join our team and help drive the development of personalized web and visual design experiences. In this role, you will be responsible for executing the technical direction of our platform, working closely with other engineers, and contributing to cross-functional initiatives that maximize the impact for our core product. You’ll also leverage AI tools to enhance efficiency, ensuring we remain at the forefront of technology and innovation in the influencer marketing space.

Customer Overview:

USA influencer marketing platform for organizations looking to advance their creator marketing. Its enterprise-grade technology and industry-leading intelligence facilitate scaled creator discovery, streamlined workflows, and robust reporting, while ensuring compliance and brand safety.

Responsibilities:

• Develop and maintain performant, accessible, and user-friendly interfaces.
• Work with technologies such as React.js, JavaScript/TypeScript, HTML, and CSS.
• Work with React component libraries such as Material UI, Joy UI, Chakra UI, and Tailwind UI.
• Produce maintainable, tested, performant, and scalable code.
• Collaborate with product managers and designers to create solutions that meet user needs.
• Be involved in various engineering tasks, including creating technical documentation and developing proof-of-concepts.
• Support and mentor junior engineers, contributing to a positive team culture.

Skills/Requirements:

• Have at least 5+ years of experience as a Frontend/UI engineer with a strong track record of delivering high-quality code.
• Proficient in advanced React (custom hooks, Context API, state management, component lifecycles, and client-side routing) and CSS patterns (CSS preprocessors like SASS or LESS, CSS Grid, and Flexbox layouts).
• Possess a deep understanding of JavaScript and/or TypeScript.
• Have experience with testing frameworks (e.g., Jest, Mocha, Playwright, Cypress).
• Prioritize web accessibility in your work.
• Are comfortable with ambiguity and can effectively scope and solve complex problems.
• Have experience working in a fast-paced, highly collaborative environment.
• Value testing and documentation as much as code quality.
• Are comfortable working in an agile, safe-to-fail environment.
• Have experience using AI tools to improve development efficiency.
• Are fluent in English with strong, proactive communication skills to collaborate effectively and communicate asynchronously with teams across different time zones.
• Proficient in leveraging AI tools like GitHub Copilot or Claude AI to enhance coding efficiency.

About Project:

Comprehensive platform designed to empower business owners in the service industry, such as cleaning, lawn care, repairs, and more. It provides an all-in-one solution for managing bookings, client communications, payments, and team coordination, allowing businesses to streamline their operations and enhance customer satisfaction.

Stack: Typescript, NestJS, ReactJs, PostgreSQL, TypeORM, AWS, Stripe.

Responsibility:

• Development and support of code (React.js, ReactAdmin and NestJS applications with PostgreSQL database and 3rd party API integration).

Requirements:

• strong knowledge of JavaScript/TypeScript (3+ years);
• experience with Node.js (3+ years);
• experience with NestJs 1+ year;
• experience with Stripe or other Payment API;
• experience with PostgreSQL/MySQL/MS SQL databases 2+ years;
• experience with TypeORM/Drizzle ORM/PrismaORM/Sequelize 1+ year;
• experience with docker 1+ year;
• strong knowledge of React (2+ year);
• experience with styled components;
• experience with web-hooks handling;
• excellent writing and speaking skills in English (B2 level).

Would be cool:

• experience with Next.js 1+ year;
• experience with AWS ECS/RDS/S3 1+ year;
• experience with message brokers 1+ years (RabbitMQ/Kafka/SQS etc.);
• familiar with ReactAdmin.

Itera is looking for a Middle Front-end developer who will work on the project for the biggest Icelandic bank. Your team will cooperate directly with Icelandic developers and designers to make the best banking applications in Iceland using all the power of the custom Component library, Storybook/Chromatic.
We are looking for an open-minded person, who is passionate about continuous self-development and can solve challenging tasks by himself. 
 

Tasks and responsibilities:

• Develop state-of-the-art applications using the latest and greatest technology available.
• Communicate directly with the customer’s team, clarify technical requirements.
• Deliver high-quality code.
• Be able to work independently.
• Follow WCAG AAA in terms of accessibility.
• Use Chromatic for visual testing.
• Experience authentic Icelandic culture.

Professional requirements:

• At least 4 years’ experience within software development;
• Proficient at core web technologies, including HTML, CSS and JavaScript;
• React JS and TypeScript practical experience of creating React-based UI;
• Styled components;
• Solid experience in implementing components;
• Good OOP/OOD skills and good quality of produced code, best practices, clean code;
• Strong experience with building for accessibility and other related a11y issues;
• Experience with version control systems (Git);
• English: Upper-Intermediate ;
• High level of responsibility and loyalty;
• Experience of direct communication with a customer.

Be a plus:

• Storybook;
• GraphQL;
• Experience of developing Styled components/Emotion;
• Knowledge of unit testing, CI/CD processes;
• Experience with Cordova or similar technology.

The customer transforms the business paradigm, showcasing success, profitability, and social impact without additional costs. Advocating accessible vision care, they offer affordable eyewear. Since 2020, they have distributed over eight million pairs, demonstrating a steadfast commitment to sustained impact.

Project Description:

The project is a high-performance, scalable full-stack React application leveraging modern TypeScript, built with frameworks like Next.js for server-side rendering. It utilizes cutting-edge tools such as the CSS-in-JS library Stitches, React-Query for API fetching and state management, and Style-Dictionary for seamless integration of Figma's design system style definitions. Collaboration between engineers and designers drives the development of an internal design system and component library in Storybook, which supports a custom-built content management system that powers much of the site. With Cloudflare workers deployed at the edge, the platform achieves enhanced performance and enables new functionalities. The Next.js Node server efficiently proxies API requests to the back-end, built with Python on scalable AWS infrastructure. This modern approach ensures an exceptional developer experience while consistently delivering high-quality product experiences that reflect a long-standing tradition of design excellence.

What You'll Do:

• Work closely within a cross-functional team of designers, product managers, and analysts to develop high-quality technical solutions to customer and business problems;
• Develop new and existing software systems to the highest technical, quality, and accountability standards;
• Use and promote successful software management and technical workflow practices that shorten feedback loops between the Tech team and others;
• Serve as a technical evangelist to advocate for user experience and empathetic design;
• Develop experiences that explore user behavior and insights;
• Demonstrate ability to deliver software projects with a high level of autonomy.

Job Requirements:

• 5+ years of web development experience;
• Experienced building modern and performant frontend applications with React in a professional setting;
• Experienced with continuous integration, unit testing and E2E testing;
• A clear, friendly, and open-minded communicator (slack, google meet);
• Excited to collaborate with others across the client's technology ecosystem;
• Creative and empathetic, especially when it comes to design and development;
• Passionate about building features from concept to deployment;
• Successful in an agile work environment, breaking down large pieces of work to deliver value incrementally;
• Experience in building accessible UIs will be a plus;
• Experience with A/B testing will be a plus;
• Experience contributing to open-source projects will be a plus;
• Level of English - from Upper-Intermediate (spoken/written).

Про клієнта та проєкт:

Країна: Канада.
Сфера розробки: HealthCare/Analytics.
Проєкт ​​– це мобільний додаток для оцінки когнітивного стану користувача через поєднання точок на малюнку та трекання різних даних (час, способи поєднання точок, швидкість поєднання, і тд). Після цього проводиться аналіз за допомогою різних алгоритмів, які визначають стан користувача.

Обов'язки на проєкті:

• Розробка, покращення та підтримка функціоналу додатку (React Native);
• Написання чистого, ефективного і задокументованого коду;
• Баг фіксинг;
• Забезпечення високого рівня продуктивності, надійності і масштабованості;
• Тісна співпраця та комунікація з командою та фаундером продукту;
• Участь в обговоренні та прийнятті рішень.

Основні вимоги:

• 2+ років комерційного досвіду розробки на React Native;
• Досвід розробки та знання Expo, Canvas;
• Вміння керувати станом програми за допомогою Redux;
• Глибокі знання Axios;
• Сильні навички налагодження (debugging) та здатність оптимізувати продуктивність програми;
• Рівень англійської мови – Upper-Intermediate (щоденна комунікація);
• Особисті якості: комунікабельність, організованість, самостійність, бажання розвиватись та професійно зростати.

Буде плюсом:

• Досвід роботи на проєктах у схожій сфері;
• Технічна профільна ІТ освіта (Комп’ютерна інженерія, Розробка програмного забезпечення, і тд);
• Знання Scrum методології.

Intego Group is looking for a talented Full-stack Developer with an innovative mindset and technical skillset to join our growing team and work as part of the Engineering team. Our client has significant experience in creating and scaling successful businesses in the outcome-based engagement, statement of work, consulting, solution, and project service space.

The product is the SaaS cloud-based platform designed to support and facilitate the capture, scoping, creation, authorization, and execution of statement of work (SOW) services. Automated processes and business logic simplify and streamline the end-to-end process of provisioning SOWs across the supply chain. The platform is a multi-tenant SaaS application that is built using a modern ASP.NET Core.

Required Technology stack:

• React.js – Redux, Sagas, SignalR, Swagger;
• ASP.NET Core with Web API;
• SignalR;
• Entity Framework Core;
• SQL Server/Elastic SQL;
• Azure;
• GitHub Actions CI;
• Moq/NUnit Testing;
• Local Development with Docker;
• Azure DevOps.

General requirements:

• 3+ years of experience within a commercial software development environment using ASP.NET/C#/HTML/JS/CSS;
• Frontend development skills using React.js and associated frontend technologies such as Redux and Sagas;
• Experience with frontend frameworks such as Bootstrap;
• ASP.NET Core experience building WebAPI-driven REST APIs;
• Entity Framework Core/Full experience utilizing SQL server;
• Experience with web-based API integrations such as REST and SOAP;
• Experience with Identity Server4;
• Experience with SignalR hubs on both the frontend and backend;
• Experience with Git/GitHub/GitFlow utilizing a PR review process;
• Experience using project management tools such as Azure DevOps/JIRA/Kanban etc.;
• GitHub Actions CI;
• Moq/NUnit Testing;
• Local Development with Docker;
• Azure DevOps.