
We do have opening with our company Crownstack Technologies for React.Js Developer. Interested candidate can share their CV.
About us
Crownstack is a premium organisation that specializes in providing innovative digital technology solutions to various enterprises including startups, small and medium-sized businesses and Fortune 500 companies across the globe. Our services include, but are not limited to, UI design, mobile app and web development, Cloud computing, data analytics, and Dev Ops. We take pride in our ingenious, meticulous, and skilled workforce who aim to deliver sustainable and cutting-edge business and technology solutions to all our clients. ★ 100+ Successful Apps Delivered | ★ Enterprise and Startup Clients | ★ Scalable Products | ★ MEAN Stack | ★ Python, pHp, NodeJs | ★ Agile Development | ★ Best UI/UX Award
Job Description
Crownstack is looking for ReactJs Developers to join our team and deliver a streamlined user experience. We want a team member who strives to develop a first-class codebase using ReactJs best practices. As a React Developer, you will implement a complete user interface across our mobile and desktop web interfaces.
Requirements
Job Location: Gurgaon/Noida
Experience: 2+ years
Roles and Responsibilities
- Develop user interfaces with the latest frontend technologies
- Research, analyze, and develop product features of increasingly complex nature
- Code tested and documented JavaScript, HTML, PUG and CSS
- Make design and technical decisions for ReactJs projects.
- Develop application code and unit testing in the ReactJs with REST APIs
- Ensure high performance of all systems developed
Skills and Qualifications
- 2+ years experience with ReactJs
- Strong expertise with HTML, CSS, and writing cross-browser compatible code.
- Experienced in Typescript is a plus
- Familiarity with testing frameworks (Ex. Enzyme)
- Experience in building highly reusable and decoupled components
- Experience in State management Libraries like Redux, mobx
- Critical thinking and problem-solving skills
- Good time-management skills
- Great interpersonal and communication skills

About Crownstack Technologies
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Job Title: Associate Frontend Engineer
Job Summary:
We are looking for a passionate and motivated Associate Frontend Engineer with 1 to 2 years of experience to join our product engineering team. In this role, you will work closely with experienced developers and designers to build seamless, performant, and user-friendly interfaces using modern JavaScript frameworks. You’ll gain hands-on experience in building production-ready web applications and learn how to deliver high-quality UI at scale.
This opportunity is ideal for individuals who are early in their careers and eager to grow through real-world development, mentorship, and continuous learning.
Website: https://www.thealteroffice.com/about
Key Responsibilities:
- Assist in developing and maintaining responsive, accessible, and performant web user interfaces.
- Work with modern JavaScript frameworks/libraries such as React, Vue, or Angular to build modular, reusable components.
- Translate UI/UX designs from tools like Figma into pixel-perfect, production-quality code.
- Write clean, maintainable, and well-documented HTML, CSS, and JavaScript (ES6+).
- Collaborate with product managers, backend engineers, and designers to deliver complete, integrated features.
- Learn and apply best practices in state management, component-driven development, and API integration.
- Participate in code reviews, understand and follow design systems, and contribute to a culture of code quality.
- Debug and resolve cross-browser, cross-device, and performance-related UI issues.
- Use tools such as Git, CI/CD pipelines, and frontend build tools (e.g., Webpack, Vite) as part of your daily workflow.
- Begin working with TypeScript, Tailwind CSS, and popular UI libraries (e.g., Material UI, Bootstrap) to enhance development efficiency and consistency.
- Follow accessibility guidelines and responsive design principles, ensuring your UI works for all users.
- Gain exposure to linting tools, formatters, testing libraries (unit/integration/e2e), and performance profiling using browser dev tools.
Requirements:
- 1 to 2 years of experience in frontend development through internships, academic projects, freelance work, or personal side projects.
- Solid understanding of HTML, CSS, and JavaScript (ES6+) fundamentals.
- Familiarity with at least one modern JavaScript framework (React, Vue, Angular).
- Understanding of version control systems like Git and ability to collaborate in a team-oriented development workflow.
- Willingness to learn and apply best practices in UI performance, security, accessibility, and maintainability.
- Strong problem-solving abilities, attention to detail, and eagerness to grow through mentorship and feedback.
- Effective communication skills and ability to work in a fast-paced, agile team environment.
We are looking to hire an experienced AngularJS Developer to join our dynamic team.
To ensure success as an AngularJS Developer, you should have extensive knowledge of theoretical software engineering, be proficient in JavaScript, HTML, and CSS, and have excellent project management skills.
- Proficient understanding of Angular
- Experience of working on DOM based JavaScript frameworks.
- Experience with JavaScript, HTML, CSS and jQuery.
- Familiarity with ticketing tools JIRA & Trello.
Excellent in analytical and multitasking skills. - UX (Front-End) development.
- Ability to work with a team of developers, communicating professionally and effectively.
- 2-5 experience of working with SPA
- Highly skilled at front-end engineering using Object-Oriented JavaScript (ES5, ES6), various JavaScript libraries and frameworks (ReactJS), HTML and CSS
- Experience with Asynchronous and Futures (Promises) Design Patterns
- Proficient understanding of code versioning tools, such as Git
- Experience in developing Large-scale, Single-Page Applications (SPAs) and Unit Testing
- Good understanding of browser rendering behavior and performance
- Proficient understanding of cross-browser compatibility issues and ways to work around such issues
Good to have: Optional
- Working with Secure APIs using JWT/OAUTH
WHO YOU ARE
To be successful in this role, you’ll need to have the following skills:
- Love for coding: A fanatic about writing beautiful and scalable code.
- Sense of analytics: Strong analytical and troubleshooting skills. Should be resourceful, innovative and inventive.
- Dynamic: Should be comfortable in dealing with lots of moving pieces. Have exquisite attention to detail, and are comfortable learning new technologies and systems.
- Team player: Knack for influencing without being authoritative. Pitch in wherever the team needs help, from writing blog posts to supporting customers.
- Accountability: High sense of ownership for your code and relentlessness to deliver projects with high business impact.
KEY QUALIFICATIONS
- BE/BTech in Computer Science or related field.
- Minimum 3+ years of UI/Frontend development and a strong understanding of building complex layouts using JavaScript, CSS and HTML.
KEY SKILLS
- Strong computer system analysis and design skills in current methodologies and patterns including vanilla JavaScript, some experience with ReactJS, Redux, React Native, Webpack, and Typescript or similar library/tools.
- Obsessed with WPO (Web Performance Optimization) and web/mobile performance analysis.
- Experienced with web standards and protocols such as HTTP, DNS, TCP/IP, and socket APIs in general.
- Familiar with web security, SEO, accessibility and internationalization.
We are looking for an excellent experienced person in the Frontend Development field. As a frontend developer, you will be closely working with our team to ensure the system consistency and improve your experience.
Responsibilities:
• Ensure the technical feasibility of UI/UX designs.
• Optimize application for maximum speed and scalability.
• Assure that all user input is validated before submitting to the back-end.
• Collaborate with other team members and stakeholders
• Collaborate well with team and data implementation specialists to design and create advanced, elegant and efficient systems.
Requirements:
• Proficient understanding of web markup, including HTML5, CSS3, ReactJS, Nodejs
• Responsive and Mobile Design
• Cross-Browser Development
• Problem Solving Skill
• Basic understanding of server-side CSS pre-processing platforms
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Good understanding of (Depending on the specific case, a developer should have the knowledge of advanced JavaScript libraries and frameworks, such as ReactJS, NodeJS and PHP)
Primary Skills:
• Ability to improve the performance of the website for both mobile and desktop.
• Come up with efficient, modular and scalable solutions for business and technical problems.
• Break projects into simpler granular tasks, estimate effort required and identify dependencies.
• Write efficient and readable code leveraging on a good understanding of object-oriented principles and design patterns.
• Follow release cycles and commitment to deadlines.
Yes, We are allowing working from home for most of the profiles and maintaining all precautions in the office also.












