
React.js Developer Responsibilities:
- Meeting with the development team to discuss user interface ideas and applications.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly responsive user interface components using react concepts.
- Writing application interface codes using JavaScript following react.js workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates.
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eact.js Developer Requirements:
- Bachelor’s degree in computer science, information technology, or a similar field.
- Previous experience working as a react.js developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.

About Kopykitab
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At Shipthis, we work to build a better future and make meaningful changes in the freight forwarding industry. Our team members aren't just employees. We are comprised of bright, skilled professionals with a single straightforward goal—to Evolve Freight forwarders towards Digitalized operations, enhance efficiency, and drive lasting change.
As a company, we're just the right size for every person to take initiative and make things happen. Join us in reshaping the future of logistics and be part of a journey where your contributions make a tangible difference.
Learn more at www.shipthis.co
JOB DESCRIPTION
What you’ll be doing:
- Lead the design, development, and maintenance of the frontend of Shipthis's suite of SaaS products
- Drive the implementation of new technologies and architect frontend solutions to ensure scalability and maintainability.
- Work closely with backend developers to ensure seamless integration of APIs and data between the front and back end.
- Define and enforce coding standards, guidelines, and best practices for the team, ensuring high code quality and performance.
- Actively participate in planning and strategy discussions, contributing to technical decisions that influence the product roadmap.
- Troubleshoot and resolve high-priority technical issues, ensuring the stability and performance of the system in production environments.
- Collaborate with UI/UX designers and product managers to shape the user experience, ensuring that complex data workflows are intuitive and accessible.
- Mentor and guide junior developers within the team, providing code reviews and feedback to ensure quality and best practices are followed.
- Stay current with industry trends and developments, recommending tools, libraries, and processes to improve the frontend development workflow.
Desired qualifications include:
- 2+ years of experience in frontend development with a solid track record of delivering successful web applications.
- Experience leading frontend teams or working as a senior developer in a collaborative environment.
- Proficiency in modern JavaScript frameworks (preferably Angular 12+), along with a strong understanding of TypeScript, HTML, and CSS.
- Proven ability to architect scalable frontend solutions for large, complex web applications.
- Experience with performance optimization techniques, code-splitting, lazy loading, and browser rendering behavior.
- Familiarity with frontend testing frameworks and methodologies (e.g., Jest, Jasmine, or Cypress).
- Strong problem-solving skills, and the ability to work effectively across teams and with stakeholders at all levels.
- Solid understanding of web development principles, including responsive design, cross-browser compatibility, and accessibility standards.
- Knowledge of backend / ionic apps for android/iOS
- A strong portfolio of previous frontend work that demonstrates technical depth and design skills.
We welcome candidates
- Who is Immediate Joining
- Female candidates returning to work after a career break are strongly encouraged to apply.
We are an equal opportunity employer and are committed to fostering diversity and inclusivity. We do not discriminate based on race, religion, color, gender, sexual orientation, age, marital status, or disability status.
JOB SYNOPSIS:
- Job Role: Frontend Engineer
- Location: Bangalore
- Job type: Full-time, permanent
- Experience (2-3) years
- Industry Type: Software Product
- Functional Area: Software Development
Job Responsibilities
- Develop and maintain reusable components and front-end libraries for future use.
- Translate designs and wireframes into high-quality, responsive UI components.
- Optimize components for maximum performance across different browsers and devices.
- Implement ReactJS best practices using Hooks, HOCs, and Functional Components.
- Manage state efficiently using Redux/Flux.
- Collaborate with backend developers to integrate REST APIs.
- Debug and test applications using Mocha & Jest.
- Ensure code quality, maintainability, and scalability using modern front-end tools.
Required Skills & Qualifications
✔ 3+ years of experience in ReactJS development.
✔ Strong knowledge of JavaScript, DOM, JSX.
✔ Hands-on experience with React Hooks, HOCs, and Functional Components.
✔ Expertise in ES6+ concepts (Arrow functions, Destructuring, Spread/Rest operators, Classes, Import/Export).
✔ Experience in HTML, CSS, and responsive design.
✔ Familiarity with REST APIs and integrating backend services.
✔ Experience with state management (Redux/Flux).
✔ Strong debugging skills using Mocha & Jest for performance testing.
✔ Hands-on experience with Git, Webpack, Babel, NPM.
Good to Have:
➕ Experience with backend development (Java, Microservices).
➕ Knowledge of modern authentication mechanisms (JWT, OAuth).
About Company:
Espressif Systems (688018) is a public multinational, fabless semiconductor company established in 2008, with headquarters in Shanghai and offices in Greater China, India, and Europe. We have a passionate team of engineers and scientists from all over the world, focused on developing cutting-edge Wi-Fi and Bluetooth, low-power IoT solutions. We have created the popular ESP8266 and ESP32 series of chips, modules, and development boards. By leveraging wireless computing, we provide green, versatile, and cost-effective chipsets. We have always been committed to offering IoT solutions that are secure, robust, and power-efficient. By open-sourcing our technology, we aim to enable developers to use Espressif’s technology globally and build smart connected devices. In July 2019, Espressif made its Initial Public Offering on the Sci-Tech Innovation Board (STAR) of the Shanghai Stock Exchange (SSE).
Espressif has a technology centre in Pune. The focus is on embedded software engineering and IoT solutions for our growing customers.
About Role:
https://rainmaker.espressif.com/">ESP RainMaker provides a complete solution to makers to develop connected devices with ease. It also focuses on solving a major challenge about how the quality of connected devices can be improved. It constitutes device-side SDK, mobile apps and a cloud application. This role requires product engineering for the web UI for the RainMaker cloud.
Minimum Qualification:
- BE/B.Tech in Computer Science with 5 to 10 years of experience
- Strong Computer Science Fundamentals
- Excellent understanding of UX and design sensibilities
- Design, develop, and test UI for web applications
- Experience with one or more of these: React, Redux, Webpack, ES6, Async JS Communication, WebSockets
- Strong debugging and troubleshooting skills
Desired Qualification:
- Significant experience with JavaScript, React and Redux.
- Experience in consumption of cloud services and REST interfaces (implementation experience would be added advantage)
- Experience with CSS pre-processors like LESS or SASS
- Expertise with cross-browser, cross-platform, and responsive design
- Solid understanding of user interactions required for Single-Page Applications
- Experience with modern browser technologies
Responsibilities:
- Designing and developing User Interface for web applications
- Write code based in HTML, CSS, JavaScript and ReactJS
- Accurately translate user and business needs into functional, secure and efficient frontend design and code
- Experience and desire to take product/feature ownership from delivery and customer support perspective
- Collaborate with backend and quality engineers to spec, write, test, and deploy code that integrates with data streams and API endpoints
- Utilise responsive design techniques and ensure cross-browser compatibility
- Perform code reviews and improve/ensure the quality of product
What to expect from our interview process
- The first step is to email your resume or apply to the relevant open position, along with a sample of something you have worked on such as a public GitHub repo or side project etc.
- Next, post shortlisting your profile recruiter will get in touch with you via a mechanism that works for you e.g. via email, phone. This will be a short chat to learn more about your background and interests, to share more about the job and Espressif, and to answer any initial questions you have.
- Successful candidates will then be invited for 2 to 3 rounds of the technical interview as per the previous round feedback.
- Finally, Successful candidates will have an interview with HR.
What you offer us
- Ability to provide technical solutions, support that fosters collaboration and innovation.
- Ability to balance a variety of technical needs and priorities according to Espressif’s growing needs.
What we offer
- An open-minded, collaboration culture of enthusiastic technologist.
- Competitive salary
- 100% company paid medical/dental/vision/life coverage
- Frequent training by experienced colleagues and chances to take international trips, attend exhibitions, technical meetups and seminars.
What you’ll do:
● Own and build next-generation web applications which are efficient, reusable front-end abstractions
and systems.
● Explore and design lively and compelling consumer experiences.
● Ensure that all the assigned systems are performing to scale.
● Actively participate in design and code reviews to build robust applications and prototypes
● You will mentor junior engineers on design and proper coding practices
What you will need:
● A deep expertise in React, Javascript, HTML5 and CSS3.
● Understanding of browser internals and a basic understanding of the network stack.
● Understanding of common design patterns followed in front-end projects.
● Basic awareness of application security practices and deployment techniques for front-end projects.
● Should have sound knowledge in computer science fundamentals like data structure, object-oriented
programming and possess excellent communication skills.
Hiring - React JS Developer Freelance Consultant (WFH-Remote)
Greetings from Deltacubes Technology!!
Skillset Required:
React JS
Experience:
5+ years
Thanks
Bavithra
Talent Acquisition Specialist
- Build fluid, scalable, responsive, and consumer-centric web platforms that target users across a wide array of devices
- Collaborate closely with designers & backend developers and contribute to the full product development life-cycle from design and development to roll out
Take ownership of work and deliver quality results consistently - Own the delivery of multiple features in a fast-paced work environment
- Build optimized and modular components to provide performance-oriented solutions
- Work in a dynamic and collaborative culture ensuring good teamwork and communication with remote team members when needed
Qualifications
- 4+ Years of experience in frontend web development (1+ in ReactJS)
- Strong past experience of building, scaling and maintaining feature-rich customer-facing single-page applications
- Ability to translate designs into UI elements with accuracy and an eye for fluidity and responsiveness; strong grasp of any of CSS / sass / less
- Proven ability to implement key concepts of state management, security, and caching practices in enterprise-level web applications used at scale
- Proficient understanding of compatibility issues across different browsers and web and mobile devices and available ways to work around them
- Familiarity with the react ecosystem and popular libraries in that ecosystem
- Strong grasp over core web development concepts like HTML5, JavaScript, CSS3, general Web 2.0 techniques, and working without modern component libraries
- Experience with designing secure web applications with a strong understanding of common security vulnerabilities and best practices
- Understanding of data structures, algorithms and object-oriented programming
- Strong grasp over concepts of performance, optimization, lighthouse, etc
- Strong handle over Git, following best practices to facilitate collaboration
Skills that will give you an edge
- Hands-on experience with supporting payments and integrating payment gateways
- Experience with progressive web apps, service workers
- Strong grasp over frontend unit and end-to-end testing frameworks
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Prior experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with more current specifications of EcmaScript
- Prior experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Familiarity with HTML / CSS
- GIT experience is a plus
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools
Their services are available across the globe, with over 65% of their client base being from US, UK, and Canada. The company's primary focus is on Ayurveda and taking the ancient knowledge to anyone who wishes to bring back balance to their health and apply the tools in their everyday life.
- Developing new user-facing features
- Building reusable code and libraries for future use
- Ensuring the technical feasibility of UI/UX designs
- Creating self-contained, reusable, and testable modules and components
What you need to have:
- Extensive working experience in JS Framework Angular 4/5/6.
- Expert in the modern MVC frameworks (Angular 4+ Framework, JQuery) preferably if prior experience in connecting Laravel backend with Angular
- Strong experience working in XHTML, HTML5, CSS3, Java Script
- Web services development experience using REST, JSON
- Deep knowledge of JS-based build tools like Grunt, Gulp, and Bower
- Proficient understanding of code versioning tools, such as Git
- Proficient in web development and RESTful API design
- Good understanding of Single Page Application
- Experience with interactive, drill-down charts and reports
- Knowledge of Agile Scrum development methodologies
- Experience with microservices based development and Protractor tests will be highly preferred.
- Critical thinker and problem-solving skills
- Team player
- Strong communication skills.
- Curiosity about how things work and willingness to work in a startup environment.
We're looking for a React Developer to join our growing frontend team.
As a React Developer, you will help develop the next generation of our apps using tools such as React.js, Redux, Saga, Thunk and Webpack. You should be familiar with React and its ecosystem. Past experience with a React codebase is a requirement.
We're looking for someone who is comfortable with a fast-moving environment and can learn quickly.
Responsibilities
- Develop new components and features for our frontend app(s)
- Write, audit, and improve our test coverage
- Document and refactor our frontend codebase
- Profile and improve our frontend performance
- Write about your work and contribute back to open source
Requirements
While these requirements are a guideline, feel free to apply even if you don't meet some of these.
- 3+ years’ experience working with a Javascript framework, preferably React
- In-depth understanding of Javascript, the DOM, and relevant concepts
- In-depth understanding of Redux/React Hooks/Saga/Thunk
- Proficiency with browser based debugging and performance testing
- Understanding of progressive web apps
- Experience with a testing framework (Jest/Mocha)
- Experience using Git
- Excellent communication skills, both written and verbal
We are looking for a motivated React js developer to come join our team.
Roles & Responsibilities:
- React.js developers (about 3-5 years of experience) are involved in the interface
- component design from implementation to testing.
- Implement user interface components for JavaScript-based web and mobile applications using the React open-source library ecosystem.
- Should have proficiency in front end languages HTML, CSS, JavaScript, and JavaScript
- frameworks like REACT, Angular JS.
- Have knowledge in REACT tools such as react.js, Webpack, Enzyme, Redux, and Flux. Previous experience in user application.
- interface design is essential.
- Must have hands-on experience in payment gateway,3rd party API integration, Security encryption & decryption experience.
Skills:
- A good attitude toward work, Strong problem-solving skills
- Desire to work in a fast-paced environment along with project and time management skills
- Ability to work independently or with a group











