-Proficient understanding of web markup, including HTML5, CSS3
-Knowledge of JS based build tools like Grunt, Gulp, and Bower
-Knowledge of Unit Testing with Jest
-Exposure in SEO, Web Service integration, asynchronous request handling, partial page update etc.
-Exposure to Node.js would be an added advantage
-Knowledge of different process tools like Git, SVN, Jenkins etc.
DESIRED SKILLS:
-Strong experience in Responsive Design, React JS
-Understanding of Native and Cross Platform mobile applications and user experience best practices
-Exposure to Node.js, Angular and React Native would be an added advantage

About headerlabs
About
Connect with the team
Similar jobs
Need IMMEDIATE JOINERS ONLY.
Candidate must have Experience with Language React, Angular,MobX, and SCSS .
Candidate should have Hands-on experience working with RDBMS
Candidate should have developed from scratch.
Candidate should be more stronger in Angular.
Candidate from service based companies will be preferred.
● Driving new features from user research to production by working closely with designers
and AI engineers.
● Developing and implementing highly responsive user interface components using React
concepts.
● Writing application interface codes using JavaScript following React.js workflows.
● Develop a flexible and well-structured frontend architecture along with the APIs to
support it.
● Demonstrate knowledge in front-end performance and emerging standards while
promoting best practices to push the limits of what a browser and devices can do.
● Reviewing application requirements and interface designs.
Technical Skills:
● In-depth knowledge of JavaScript and React concepts, excellent front-end coding
skills, and a good understanding of progressive web applications.
● Must have: HTML5, CSS3, JavaScript, React tools including React.js, Webpack,
Enzyme, Redux, Flux, GIT, HTTP(s), Terminal, Build Tools, State Management, Type
Checkers, Form Helpers, Routing, REST API, GraphQL, Utility Libraries,
Internationalization, Server-Side Rendering, and Backend Framework Integration.
● Experience with browser-based debugging and performance testing software.
● Performance tuning, improvement, balancing, usability, automation, and committing
changes continuously to leverage test-driven techniques in development (BDD/TDD).
● Good to have – ionic, next js.
Minimum Qualifications:
● 2**+ years of experience** building and maintaining production-grade software using
modern programming frameworks.
● 2+ years of experience in using SPA frameworks like React for production-grade web
apps.
● Understand the pros and cons of client-side caching and edge caching
● Familiarity with SQL and database abstractions.
● Well versed with design patterns, writing reusable code/modules
● Ability to quickly learn new frameworks/technologies and move across the stack when
necessary
● Bachelor's Degree in Computer Science or related field.
1. Experience in developing web-based applications using React JS 2. React JS, Redux and TypeScript, HTML, CSS and JavaScript 3. Strong interpersonal and written communication skills 4. Willingness to learn and master new technologies 5. Knowledge in Angular or Node JS would be an added advantage.
https://www.linkedin.com/feed/hashtag/?keywords=%23Experience">#Experience:
1. Bachelors/ Master’s Degree & experience in the related field 2. Possess flexibility and adaptability to meet the working environment
Leena AI has been founded by IIT Delhi alumnus and senior industry veterans with the mantra to "Improve Employee Experience through Intelligent Conversations”.
Leena AI provides an end to end Chatbot to better the employee/candidate experience & product longevity using our capabilities in HR Chatbot. This solution ensures a reduction in query handling time for HR & improves the employee experience. Apart from this we also have out of the box modules which take care of real-time status updates for employee queries about Workday, improve employee on-boarding and exit process along with simplifying employee-manager's self-service process in the organization. We enable out of the box integration with Workday, Microsoft AD, Kronos and SharePoint for providing a superior experience to employees over the Chatbot.
At Leena AI, We are looking for a passionate Lead Front-End Developer who is proficient with React.js. You will be involved from conception to completion with projects that are technologically sound and aesthetically impressive. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality products are important.
Responsibilities:
As a Lead Front-End Developer you would be responsible for:
- Leading a team, Collaborate with team to deploy and continuously improve our solutions
- 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 and pixel perfect code.
- Optimising components for maximum performance across a vast array of web-capable devices and browsers.
- And everything that a coder does.
- Strong proficiency in JavaScript, including DOM manipulation and theJavaScript object model.
- Thorough understanding of React.js and Redux its core principles.
- Familiarity with newer specifications of ECMA Script is a plus.
- Familiarity with RESTful APIs.Knowledge of modern authorisation 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.
- Lead a product (would be a plus)
- Have managed a team before
- You have 4-8 years of experience in Frontend for web based applications with strong understanding of HTML, CSS, JavaScript, Frameworks like Angular or React
- You love building things, and have built complex consumer web applications in the past.
- You have a sound understanding of data structures and algorithms.
- You are an expert in HTML, CSS, JavaScript and jQuery.
- You are an expert in at least one JavaScript framework, such as Angular 7+, React or Vue.
- You understand how website-backend interacts with frontend as well as external APIs.
- You enjoy mentoring others and helping them solve challenging problems.
- Developing new user-facing features.
- Working alongside product to understand our requirements, and designing, developing and iterating, thinking through the complex architecture.
- Writing clean, reusable, high-quality, high-performance, maintainable code.
- Ensuring the technical feasibility of UI/UX designs and optimizing applications for maximum speed.
- Researching and applying new technologies, techniques, and best practices.
What you need to have:
- Experience in working on frameworks like React and VueJS
- Excellent teamwork skills, flexibility, and ability to handle multiple tasks.
- Strong understanding of Object-Oriented Programming, Data Structures, and Algorithms .
- Strong knowledge of Javascript, HTML5, CSS3.
- Extensive experience working on Javascript
Experience: 2 to 7 years
➢ Expert in React JS with about 4 years of experience
➢ Experience in using libraries like D3, Material UI, style sheets and theme management
➢ Should be able to understand requirements & design, develop efficient React JS Code, should have used tools to automate the test and deployment to production
➢ Should have good knowledge on REST APIs, Error handling and writing Unit and Integration Tests
➢ Knowledge of Java is desirable
Responsibilities
➢ Understand the Visual Designs, Functional Requirements and come up with the design/components needed to build the user interface.
➢ Work with Visual Designers to understand the graphic design patterns, themes, and implement in a structured way in the product front end
➢ Work with server side microservices team to develop the JSON contracts
➢ Develop efficient React JS code to implement these requirements
➢ Automate the testing and deployment of these components to production
What You’ll Do
- Should be able to develop an application with vanilla Javascript without any frameworks.
- Maintain reusable code and improve code quality.
- Optimize application for maximum speed.
- Should take ownership and work closely with other teams. such as back-end.
- Make suggestions for better solutions to problems and keep abreast of the latest and emerging technologies.
- Be comfortable working throughout the lifespan of a project.
Who you are
- Should have minimum 5+ years of experience.
- Proficient understanding of web markup, including HTML5, CSS3 and vanilla JavaScript.
- Should have good knowledge on ES6.
- Understanding of CSS pre-processing platforms, such as LESS and SASS.
- Should be proficient any of the the frameworks ReactJs, VueJs etc.
- Should have knowledge on Node Js.
- Should have hands on experience web component development.
- Good understanding of Responsive Web Designing, CSS media queries and Bootstrap library.
- Understanding of cross-browser compatibility issues and ways to work around them.
- Good understanding of asynchronous/Ajax request handling.
- Good understanding of OOJS.
- Knowledge of code versioning tools, such as GIT.
- Knowledge in writing UI test cases using any test framework.
Education
- Bachelor's degree in Computer Science, Engineering or equivalent demonstrable experience.
Benefits
- In addition to competitive salaries and benefits packages, Nisum India offers its employees some unique and fun extras:
- Continuous Learning - Year-round training sessions are offered as part of skill enhancement certifications sponsored by the company on an as need basis. We support our team to excel in their field.
- Parental Medical Insurance - Nisum believes our team is the heart of our business and we want to make sure to take care of the heart of theirs. We offer opt-in parental medical insurance in addition to our medical benefits.
- Activities -From the Nisum Premier League's cricket tournaments to hosted Hack-a-thon, Nisum employees can participate in a variety of team building activities such as skits, dances performance in addition to festival celebrations.
- Free Meals - Free snacks and dinner is provided on a daily basis, in addition to subsidized lunch.








