
Freelance React.JS developer
at Client is UK based into e-commerce
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Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
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Thorough understanding of React.js and its core principles
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Experience with popular React.js workflows (such as Flux or Redux)
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Familiarity with newer specifications of EcmaScript
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Experience with data structure libraries (e.g., Immutable.js)
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Knowledge of isomorphic React is a plus
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Familiarity with RESTful APIs

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What We’re Looking for in You:
1. Qualifications: Bachelor’s Degree in Computer Science, Information Technology, or a related field
2. Certifications: NA
3. The Experience That Sets You Apart:
● Lead the development of responsive, pixel-perfect web interfaces using HTML, CSS, and JavaScript also Shopify
● Set and maintain frontend coding standards, structure, and best practices
● Collaborate with designers to bring UI/UX concepts to life with clean, maintainable code.
● Optimize web pages for performance, SEO, and cross-browser/device compatibility.
● Guide and mentor junior developers through code reviews and technical support.
● Own project timelines, quality assurance, and delivery for all frontend initiatives
4. Your Subject Matter Expertise:
● Team leadership — 2+ years leading 10+ member teams
● Strong communicator — aligns tech and non-tech teams
● Detail-driven — ensures UI and code precision
● Collaborative — fosters teamwork and mentorship
● Organized — manages time and parallel tasks efficiently
● Service-based mindset — experience in ~200-employee setups
● Composed under pressure — delivers in fast-paced environments
● Solution-focused — navigates challenges with clarity
We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux).
You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities :
* Developing new user-facing features using React.js
* Building reusable components and front-end libraries for future use
* Translating designs and wireframes into high quality code
* Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills :
* Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
* Thorough understanding of React.js and its core principles with Type Script
* Experience with popular React.js workflows (such as Flux or Redux)
* Experience with data structure libraries (e.g., Immutable.js)
* Knowledge of isomorphic React is a plus
* Familiarity with RESTful APIs
* 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.
● Develop new user-facing features
● Build reusable code and libraries for future use
● 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 back-end
● Collaborate with other team members and stakeholders
Requirements
● Practical experience in building web pages in HTML/CSS on PHP
● Practical experience with jQuery for functional side of javascript
● Need to understand how to interlace PHP code with HTML code with loops, etc.
● Understanding of how to write modular code for different HTML snippets in PHP
● Experience with Bootstrap is a plus
● Good knowledge of working with Git is required
BarRaiser is an AI based B2B & B2C SaaS video recorded interview platform helping
companies to reduce their hiring time by getting their candidates interviewed by the top
industry leaders coming from the companies like Amazon, Linkedin, Microsoft, Google etc.
At BarRaiser, we are standardizing the interview process, so companies hire the right talent
and candidates land their dream job. Our expert partners interview the company's potential
hires by leveraging BarRaiser's proprietary platform and sharing a fair, unbiased assessment
of the candidate's skills, aptitude, and knowledge. We've completed 7.5k+ interviews from
the time of inception working with top product companies like Glance, upGrad, Acko and
Cure.fit among others. Our aim is to reach 50k+ interviews per month globally by 2023.
Founded in 2020 by Avinash Saxena (IITD) Ex-founder Roposo & CTO at Zomato, well
known serial entrepreneur and an investor & Prashant Kumar (IITD), experienced Data guy
worked with Fintech startups.
BarRaiser is looking for a Senior Frontend Engineer to join the technology team. A Senior
Frontend Engineer is expected to be an excellent problem solver who has in-depth
understanding of JavaScript and is hands-on with one or more modern frontend stacks like
React, View, Angular, etc. Also, being an early age startup, we welcome people who are
go-getters and take ownership and drive results.
Responsibilities:
● Writing quality code with suitable best practices in place and delivers robust features
● Participating in code reviews with teammates
● getting involved with team mates proactively to manage delivery of features by
planning deployments, development, etc
● Leading by example to document the processes, system details and decision
making
● Engaging yourself in discussions with engineers and product managers to define api
contracts, product behaviours, plan deployment, etc
Requirements:
● An Experienced Engineer - You have at least 3 years of experience building and
shipping challenging and robust frontend products with modern technology stack.
You have in depth understanding of fundamentals of Frontend Development
● Technologically Fearless - You embrace technical challenges and go outside your
comfort zone to solve the problems. You can evaluate new frameworks and evaluate
them to be used with current system
● Pragmatic - you value a balance of short term and long term solutions while building
products and not just go by the books
● Customer Obsessed - you believe in delivering products which are customer
delight and not just technically complex
● Enthusiastic Problem Solver - you love challenging and complex problems, but
believe in simple solutions
● Technology Geek - you take keen interest in latest developments in technology and
are keen to use them to solve problems
● Software Engineering Advocate - you believe in software engineering best
practices and like to implement them on a day to day job.
● Data Driven - you like measuring KPIs of the products you deliver and derive next
course of action
● Mentor - you like mentoring relatively junior peers and bring the best out of them
● Excellent Communicator - you believe in clear and concise written as well as
verbal communication, you are intuitive in keeping stakeholders informed.
Our Success Stories:
Web Designer Responsibilities:
- Conceptualizing creative ideas with clients.
- Testing and improving the design of the website.
- Establishing design guidelines, standards, and best practices.
- Maintaining the appearance of websites by enforcing content standards.
- Designing visual imagery for websites and ensuring that they are in line with branding for clients.
- Working with different content management systems.
- Communicating design ideas using user flows, process flows, site maps, and wireframes.
- Incorporating functionalities and features into websites.
- Designing sample pages including colors and fonts.
- Preparing design plans and presenting the website structure.
Web Designer Requirements:
- A relevant diploma in a related field.
- Proficiency in graphic design software including Adobe Photoshop, Adobe Illustrator, and other visual design tools.
- Proficiency in front-end development web programming languages such as HTML and CSS, JQuery, and JavaScript.
- Good understanding of content management systems.
- Good understanding of search engine optimization principles.
- Proficient understanding of cross-browser compatibility issues.
- Excellent visual design skills.
- Up-to-date experience with international web protocols, standards, and technologies.
- Creative and open to new ideas.
- Adaptable and willing to learn new techniques.
- Excellent communication skills.
Key Skills:
o Determining the structure and design of web pages.
o Ensuring user experience determines design choices.
o Developing features to enhance the user experience.
o Striking a balance between functional and aesthetic design.
o Ensuring web design is optimized for smartphones.
o Building reusable code for future use.
o Optimizing web pages for maximum speed and scalability.
o Utilizing a variety of markup languages to write web pages.
o Maintaining brand consistency throughout the design.
o Understanding of key design principles.
o Experience with Angular and React.
o Proficiency in HTML, CSS, JavaScript, and jQuery.
o Understanding of server-side CSS.
o Experience with responsive and adaptive design.
o Understanding of SEO principles.
o Good problem-solving skills.
• Good to have skills:
o Knowledge of additional framework like ViewJS and NodeJS is a big plus.
o Knowledge of PHP - object orientated concepts and frameworks such as Laravel or
CodeIgniter.
o MySQL concepts
o Understanding accessibility and security compliance
- Develop User interfaces for Modern Rich Internet Applications with the latest Front End Technologies Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
- Writing tested and documented JavaScript, HTML and CSS
- Make design and technical decisions for AngularJS projects.
- Ensuring high performance
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








