Senior Frontend Developer

Job Summary:

We are seeking a highly skilled and hands-on UI Developer with strong expertise in React.js and JavaScript to join our front-end engineering team. The ideal candidate will have at least 5 years of experience in developing scalable, high-performance, and user-centric web applications. You will be expected to contribute immediately, owning development tasks end-to-end — from design and coding to performance tuning and deployment.

 Key Responsibilities:

• Design and develop responsive, high-quality user interfaces using React.js, JavaScript, HTML5, and CSS3.
• Collaborate closely with UX designers, backend developers, and product managers to translate business requirements into technical implementations.
• Write clean, efficient, and reusable code following best practices and modern front-end standards.
• Optimize components for maximum performance and scalability across various browsers and devices.
• Participate in code reviews, ensuring adherence to coding standards and best practices.
• Troubleshoot, debug, and resolve UI-related performance or compatibility issues.
• Stay up to date with emerging front-end technologies and continuously enhance the development process.

 Required Skills & Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 5+ years of professional experience in front-end/UI development.
• Deep hands-on experience with React.js and core JavaScript (ES6+).
• Strong understanding of HTML5, CSS3, and modern UI frameworks/libraries.
• Experience with React hooks, state management (Redux or Context API), and component-based architecture.
• Familiarity with RESTful APIs and integration of front-end applications with backend services.
• Experience with Webpack, Babel, NPM/Yarn, and modern build tools.
• Solid understanding of version control systems (Git).
• Strong debugging and performance optimization skills.
• Ability to deliver results in a fast-paced, agile environment.

 Good to Have Skills:

• Experience with TypeScript, Next.js, or React Native.
• Knowledge of testing frameworks such as Jest, Mocha, or React Testing Library.
• Familiarity with CI/CD pipelines and DevOps tools.
• Understanding of UI/UX design principles and ability to collaborate effectively with designers.
• Exposure to cloud environments (AWS, Azure, or GCP).
• Experience in performance profiling and accessibility (a11y) best practices

Role Overview: As an Angular Developer (SDE 1), you will be responsible for developing and

maintaining high-performance, scalable web applications using Angular. You will work closely with

product managers, designers, and backend developers to create seamless and efficient user

experiences.

Key Responsibilities:

• Application Development: Design, develop, and maintain robust web applications using

Angular.

• UI/UX Implementation: Work with designers to implement responsive and user-friendly

interfaces.

• Code Quality: Write clean, maintainable code and conduct code reviews to ensure high

quality standards.

• Bug Fixing: Identify and resolve bugs and performance issues in a timely manner. •

Collaboration: Collaborate with cross-functional teams including backend developers,

designers, and product managers to deliver high-quality solutions.

• Testing: Develop and execute unit tests and integration tests to ensure application reliability. •

Documentation: Create and maintain technical documentation for code and processes.

Requirements:

• Education: Bachelor’s degree in Computer Science, Engineering, or a related field, or

equivalent practical experience.

• Experience: 1-2 years of professional experience in developing web applications with

Angular.

• Technical Skills:

o Proficiency in Angular (version 2+), TypeScript, HTML, and CSS.

o Experience with RESTful APIs and integrating with backend services.

o Familiarity with version control systems (e.g., Git).

o Understanding of responsive design principles and cross-browser compatibility.

• Soft Skills:

o Strong problem-solving skills and attention to detail.

o Ability to work collaboratively in a team environment.

o Good communication skills and the ability to articulate technical concepts to non

technical stakeholders.

Nice-to-Have:

• Experience with state management libraries such as NgRx or RXJS.

• Knowledge of modern front-end build tools and workflows (e.g., Webpack, npm). •

Familiarity with Agile methodologies and practices.

Responsibilities:

• Design the overall architecture of the web application.
• Maintain code integrity, and quality, and ensure responsiveness of applications.
• Address and improve any technical issues.
• Building reusable components and front-end libraries for future use.
• Must have strong experience in designing and maintaining a database.
• Work with modern frameworks and design patterns, minimum one-year experience with Full stack paradigm required.
• Handle technical queries raised by the development team and provide support and guidance to them.
• Troubleshoot and debug issues, perform testing, and optimize application performance
• Collaborate with front-end and back-end engineers to design and create advanced, elegant, and efficient systems.

Skills:

• Strong proficiency with 3 - 5 years of experience.
• Expertise in Laravel and a good understanding of other core PHP frameworks using REST APIs.
• Professional, definite communication skills.
• Excellent knowledge of HTML, CSS, Ajax, jQuery, and JavaScript.
• Extensive experience in designing and maintaining databases such as MySQL.
• Mastery of CMS such as WordPress and Magento is an advantage.
• Comprehensive knowledge of version controlling – GIT.
• Creating self-contained, reusable, and testable modules and components.
• Optimizing client and server-side code for maximum speed.

JOB Role:  CMS Developer (AEM Cross Train)

Work Location: Chennai & Remote also Preferred

About the Role:

Lister technologies poised for a massive growth this year is seeking for Developers, Sr. Developers who are well versed in any Content Management Systems (CMS) and are willing to pursue their career as an AEM expert. Deserving candidates will be given an opportunity to get trained, certified, and deployed in projects executed for our global enterprise customers The candidate is expected to have an in-depth understanding of CMS concepts, features, and benefits and should be hands-on in any front-end and (or) backend technologies like HTML 5, CSS3, JavaScript, jQuery, ES6, PHP, Java, .Net etc. leveraging the CMS custom capabilities in any of the platforms like Drupal, WordPress, Liferay, Contentful etc. .

Responsibilities

• Develop well designed, testable, and efficient custom components for enterprise scale applications in AEM Platform.
• Adopt agile methodology and iterative development.
• Employ strong coding standards for efficiency, readability, and reuse. 
• Responsible for meeting expectations and meeting deliverables on time and in high quality.
• Demonstrate creative, technical, and analytical skills

• Demonstrate ability to communicate effectively in technical environment.
• Operate effectively as an individual for quick turnaround of enhancement and fixes

Skills Description:

• Hands-on in any one of the CMS platforms with an in depth understanding of the platform (Drupal, WordPress, Liferay etc.)
• Good knowledge of theme, plug-ins customization and custom component development
• Desire to continually learn and explore new tools, concepts and ideas and then share them with the rest of the team
• The candidate is expected to pick up AEM platform quickly and get certified.
• Candidates having a strong java skillset (or have experience in java-based CMS platforms - like Liferay) is expected to learn AEM platform and contribute extensively to AEM backend development in JCR, OSGI and Apache Sling
• Candidates having a strong front-end skills like HTML 5, CSS3 (or pre-processing platforms like SASS), JavaScript, jQuery or have extensively worked in any non-java-based CMS platforms like Drupal, WordPress etc. will be required to learn AEM Platform and contribute to AEM Front-end development in designing AEM templates and components leveraging AEM Sightly/HTL Framework.
• Good Communication (both verbal and written).

Role : React JS Developer 

• 3-5 years of experience as a React JS developer. 
• Must have Working Experience in a product based organization at least 18 months.
• Good Communication skills must. 
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model 
• Thorough understanding of React.js and its core principles 
• Experience with popular React.js workflows (such as Flux or Redux) ● Familiarity with newer specifications of ECMAScript
• Experience with HTML,CSS, Bootstrap and UI Design 
• Knowledge of 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 
• Familiarity with code versioning tools {such as Git} 

• Building Progressive Web App components and features for the companys advanced health-tech platform using React Js, Node Js
• Communicating effectively in a cross-functional product development team and presenting ideas and solutions effectively.