Frontend Developer React Native Engineer

Key Responsibilities:

² Develop and maintain responsive web applications using React.

² Collaborate with UX/UI designers to translate wireframes and mockups into functional code.

² Optimize applications for maximum speed and scalability.

² Write clean, maintainable, and efficient code following best practices.

² Participate in code reviews and contribute to team knowledge sharing.

² Troubleshoot and debug applications to enhance performance.

² Stay up-to-date with the latest industry trends and technologies to ensure our tech stack remains cutting-edge.

Qualifications:

² Current SDE 3 designation or equivalent experience in a senior development role.

² 5+ years of experience in software development, with a strong focus on frontend technologies, particularly React.

² Proficiency in JavaScript (ES6+), HTML, and CSS, with a deep understanding of modern web development practices.

² Experience with state management libraries (e.g., Redux, MobX) and routing solutions.

² Strong knowledge of RESTful APIs and experience with modern build tools (Webpack, Babel).

² Experience with testing frameworks (e.g., Jest, React Testing Library) and test-driven development (TDD).

² Excellent problem-solving skills and the ability to work collaboratively in a fast-paced environment.

We are seeking a skilled Senior UI Developer to join our dynamic team. The ideal candidate will have extensive experience in designing and developing user-friendly, visually appealing, and responsive web interfaces. You will work closely with UX designers, backend developers, and product managers to translate design concepts into functional UI components while ensuring high performance, scalability, and accessibility.

Key Responsibilities:

Design and develop scalable, responsive, and performant user interface components.

Define and enforce UI coding standards, best practices, and guidelines.

Collaborate with UX designers to translate wireframes and prototypes into high-quality code.

Work closely with product managers to understand requirements and translate them into technical solutions.

Mentor and coach UI developers, providing guidance and support on technical challenges.

Conduct code reviews to ensure code quality, performance, and adherence to design principles.

Stay updated with the latest UI trends, technologies, and best practices.

Drive innovation and continuous improvement within the UI development process.

Required Skills and Qualifications:

Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent work experience).

Proven experience (>8 years) as a UI developer with expertise in HTML5, CSS3, JavaScript/TypeScript

Proven experience in front-end frameworks React (must), Angular(good to have), Vue.js(good to have).

Solid understanding of responsive web design, accessibility, and cross-browser compatibility.

Strong problem-solving skills and ability to troubleshoot complex issues.

Excellent communication skills with the ability to collaborate effectively with cross-functional teams.

Experience with version control systems (e.g., Git) and CI/CD pipelines.

Experience with UI testing frameworks and tools (e.g., Jest, Cypress) is a plus.

Knowledge of UX design principles and familiarity with UX design tools (e.g., Sketch, Adobe XD) is desirable.

Ability to prioritize and manage multiple tasks in a fast-paced environment. Experience building a UI for multi-tenant SaaS platform. Experience building UI with user level customization, feature flags Experience optimizing for performance and faster Time To Frist Byte and streaming.

We are looking for a Senior UI Developer who is expert in React and good to have other frameworks like Angular etc (but not a must) and who can guide the rest of the UI team and interface with cross functional teams

Job Types: Full-time, Permanent

Job Description:

We are hiring Javascript developers to join our team in developing enterprise mobile applications. This person will work closely with the UX team, as well as, other engineering teams while developing applications and user interfaces.

Experience & Expertise:

• Highly skilled at front-end engineering using Object-Oriented JavaScript with at least 2+ years of extensive experience on Javascript libraries and micro frameworks
• Expertise on frameworks like , React JS, React Native, Redux, Typescript, etc is highly preferred
• Should have strong hands on mobile cross-platform application development
• Experience integrating user interfaces with middle-tier code and back-end data sources
• Strong analytical, problem-solving, organizational, and detail-oriented skills
• Must be able to work both on a team or individually, in an adaptable, agile environment
• Excellent communication skills

Job Responsibilities:

• Work closely with the user experience team to develop functional prototypes
• Work with development teams to implement user experience deliverables
• Contribute UI component code to a shared controls library and resource dictionary
• Participate in product definition and strategy development
• Collaborate with team members, developers, and third parties to ensure the integrity of the interaction is maintained throughout the project development life cycle
• Support quality assurance testing processes

Skills Required:

Ionic Framework, Angular 2, Redux, TypeScript, Cross platform, Micro frameworks, React JS, React Native,

Be a part of one of the best IT companies that is making it easier for businesses and customers to interact with each other, efficiently and economically too.

Our client is a global platform that provides exceptional customer engagement through chatbots and various channels for their business clients. They have made their presence known across verticals, small and large businesses and even in emerging markets. The objective of their messaging platform is to create a rich experience for the marketing, sales and support teams using messaging channels, device manufacturers and operators.

They are currently working with nearly 40 thousand brands, serving almost 6 billion messages per month. Their clientele includes well-known giants such as HDFC Bank, Twitter, FB, Whatsapp, Google, LinkedIn, Zomato, Citibank, Vogue and many more. With offices based in the USA, Brazil, Mexico and India, their team has become an integral part of their clients’ numerous customer success stories.

As a Frontend Developer, you will be required to be an expert in technologies such as HTML, CSS, Javascript, ReactJS, UI Design tools, Wireframe tools etc. and work on the Frontend development of our products/ services.

What you will do:

• Designing and developing a UI framework that can be used across multiple products and website
• Working on optimization of the web application/ websites and keeping knowledge of tools used to benchmark the performance.
• Being aware of agile development (short sprints) and helping the team with debugging and troubleshooting issues.
• Learning newer technologies in UI/UX and guiding the team in delivering quality results.

What you need to have:

• Create well-designed, tested code using best practices for website development, including mobile and responsive site design
• Integrate data from various back-end services and databases
• Create and maintain software documentation
• Stay plugged into emerging technologies/industry trends and apply them into operations and activities
• Cooperate with web designers to match visual design intent

If a misaligned shadow bothers you, we already like you 😆

• Master's / Bachelor’s degree in Computer Science, Software Engineering, or Self taught developer.
• 3+ years of experience in fundamentals of web, HTML, CSS and JavaScript.
• Familiarity with JavaScript frameworks such as Vue or React.
• Understanding of product design, user experience and skills to recreate and match high quality pixel perfect designs and can go above and beyond in detailing.
• Has ability to build a ground up resoluble components and in-house UI system that can scale across the product.

A collaborative role with Individual ownership ✅

• Ownership of developing UI related features. Work with with the rest of the engineering team to develop, launch or maintain features.
• Take ownership of design <> dev collaboration and participate in the education of both sides.
• Work closely with design team and become a bridge between engineering and design.
• Maintain code integrity.

SDE-II (FE)

Responsibilities

• Gather functional requirements from product management/UX teams and translate requirements into technical specifications to build robust, scalable, supportable solutions
• Serve as technical lead throughout the full development lifecycle, end-to-end, from scoping, planning, conception, design, implementation and testing, to documentation, delivery and maintenance. 
• Provide design reviews for other engineers, including feedback on architecture and design issues, as well as integration and performance. 
• Manage resources on multiple technical projects and ensure schedules, milestones, and priorities are compatible with technology and business goals.
• 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

• Proficient understanding of web markup, including HTML5, CSS3
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
• Good understanding of AngularJS, ReactJS
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as as Gimp or Photoshop is a plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Proficient understanding of git
• Good understanding of SEO principles and ensuring that the application will adhere to them.
• BTech/BE Equivalent.
• 3-5 years of experience

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

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.

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