
Front-End Developer (Javascript, React.JS, Next.JS and GraphQL)
• Technical end-to-end design for stories by collaborating with business analyst/product owner, technical architect and clients
• Implement stories end-to-end, which includes Frontend, Backends for Frontend (BFF), Caching and also service orchestration in some cases) using best engineering practices like test-driven development, SOLID principles and consideration of non-functional requirements like performance, scalability, security or cloud readiness (as applicable) at the story level
• Automates testing at unit, module and integration level as needed using tools relevant for the platform (e.g. Jasmine, Jest, Karma, Webdriver.io etc.)
• Focus on quality by implementing best practices like logging, calling out technical debt, meeting KPIs using code quality tools like SonarQube, ESLint (customize and sync with Sonar), Stylelint/Sasslint and so on.
• Hands-on with automating redundant work, like common component structure, both in terms of scaffolding as well as using the right design patterns / creating abstractions.
• Mentor junior engineers in helping review code, guiding on technical decision making
Key Requirements:
• 4-9 years’ experience
• Hands-on knowledge of HTML5, CSS3, JavaScript
• Hands-on experience working with Object Oriented JavaScript (OOJS), JavaScript - and practical uses in building complex interactive experiences, primarily with ECMAScript 2015+. You should be up-to-date with new specifications (different stages), and also, using transpilers like Babel to use features from all stages
• Good understanding of creational and structural design patterns in JavaScript
• Experience working with Single Page Applications (SPA) with universal rendering capabilities.
• Good understanding of React.js, its core principles - lifecycle methods, virtual DOM etc. and at least 6 – 12 months hands-on experience with the same
• Understanding of one-way data flow and the Flux architecture.
• Understanding of stateful (container) vs stateless (presentational) components and how to break down the application page into components
• Core understanding of how React’s state management works out of the box.
• Understanding of different CSS architectures that go hand-in-hand with React.js application development. Pros and cons of component-level CSS vs global and where to apply each
• Thorough understanding of Webpack bundler (version 2+).
• Good understanding of the Web Components standard.
• Hands-on experience with building Progressive Web Apps (PWAs) on any framework.
• Hands-on experience with Frontend Performance Optimization – especially in a React application with respect to resource loading strategy, CPU/Memory profiling on the browser.
• Hands-on experience with test-driven development using Jest or equivalent. Familiar with snapshot testing, code coverage. Experience working with utilities like Enzyme
• Experience using fluid grids, and building responsive/adaptive websites using Bootstrap etc.
• Understanding of SEO and accessibility and making it part of the development workflow
• Moderate to Strong graphics manipulation/optimization skills using Photoshop is a plus.

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.
We're looking for an experienced mid-level Front End Engineer who’s passionate about building mobile and web products. As a Front End Engineer, you will be trusted to architect efficient, scalable, beautiful design systems for our web applications.
Company's Name:- WeAssemble
Website:- www.weassemble.team
Location:- Prabhadevi, 2min walkable from Prabhadevi Railway Station
Designation:- Vue.js Developer
Working Days - Monday - Friday
All Sat & Sun Off
Office timing - 9:00 - 6:00
Responsibilities
* Build interactive UI components with VueJs in various applications
* Collaborating regularly with backend/API engineers in designing, specifying, and implementing services to decouple functionality
* Find opportunities to improve current systems or patterns through auditing or benchmarking
* 'Own' and take lead in newly developed features for current or next-generation platforms
* Maintain our front-end test coverage by running your own tests and working with our QA team on automated testing
* Lend a hand to help other engineers through pair programming, mentoring, and supporting your teammates
Requirements
* Experience: 4 - 5 years
* Good knowledge of VueJs
* In-depthIn depth understanding of JavaScript
* Understanding of REST APIs
* Experience with Sass / Scss / Less / CSS
* Have in-depth knowledge of browsers, cross-browser compatibility issues, and how the DOM works
* Bring experience in the day-to-day practices of continuous delivery, automated testing, and agile development
* Comprehensively understand Web Application fundamentals and the libraries/tool chains used to deliver them such as Webpack, Babel, testing with Mocha/Chai or Jest, git and other CI tools
Tools
* Git
* Jira
\Good to have
* Experience with Mocha, Chai or Jest
* Experience with Sprint
* Familiarity and experience with Container architecture - Docker/Jenkins and build scripts
We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
React.js Developer Responsibilities:
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly responsive user interface components using react concepts.
- Writing application interface codes using JavaScript following react.js workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates.
React.js Developer Requirements:
- Previous experience working as a react.js developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with user interface design.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
Responsibilities
- Use markup languages like HTML to create user-friendly web pages
- Maintain and improve website
- Optimize applications for maximum speed
- Design mobile-based features
- Collaborate with back-end developers and web designers to improve usability
- Get feedback from, and build solutions for, users and customers
- Write functional requirement documents and guides
- Create quality mockups and prototypes
- Help back-end developers with coding and troubleshooting
- Ensure high quality graphic standards and brand consistency
- Stay up-to-date on emerging technologies
Requirements
- Proven work experience as a Front-end developer
- Hands on experience with markup languages
- Experience with JavaScript, CSS and jQuery
- Familiarity with browser testing and debugging
- In-depth understanding of the entire web development process (design, development and deployment)
- Understanding of layout aesthetics
- Knowledge of SEO principles
- Familiarity with software like Adobe Suite, Photoshop and content management systems
- An ability to perform well in a fast-paced environment
- Excellent analytical and multitasking skills
- BSc degree in Computer Science or relevant field
We are helping hire for an early-stage Stealth Mode funded gaming startup that is looking for a dynamic User Experience Designer to join their talented team!
The frontend engineer will relish the subtle interaction details that make the products delightful, write highly reusable code and think about how to build better systems. Product intuition is as much a necessity as technical knowledge.
# WHAT YOU'LL DO:
• Build user interfaces that are beautiful, consistent, and fast.
• Invent patterns and reusable components that our team can assemble to build powerful software workflows.
• Take sole ownership of your product(s) - keep a keen eye out for bugs that might arise, passionately resolve them; make feature additions to your product; or sometimes, when you're feeling ambitious - rewrite the whole product from scratch! (Don't make this a habit though.)
• Ensure the technical feasibility of UI/UX designs
• Optimise application for maximum speed and scalability
# SKILLS YOU SHOULD HAVE:
• 3+ years of experience in building and shipping products that people use every day
• Prior startup experience is mandatory. (Brownie points for someone who has worked in the gaming industry)
• Be able to write clean, maintainable code which others can work on
• Should have working knowledge on frontend frameworks and tools- NodeJS expertise is a bonus
• Have knowledge of browser behavior, performance, compatibility and cross-browser issues
• Proficient understanding of code versioning tools, such as Git
• You take pride in working on advanced CSS, animations and responsiveness
• Ability to own end to end responsibility - right from requirement to release
• Ability to produce bug-free and production grade code
• The skills that we consider - CSS, JavaScript, React, Redux, Node.js, LESS, SASS, Bootstrap, Express.
• Candidates from Top tier colleges will be preferred.
LOCATION - Gurugram (Udyog Vihar)
Skills
- Have published at least one original React JS Application.
- Experience with third-party libraries and APIs
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
Roles
Should be able to single-handedly build performant mobile apps on the React JS platform. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Responsibilities
- Build pixel-perfect, buttery smooth UIs across web platforms.
- Leverage APIs for deep integrations with web platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Writing application interface codes using JavaScript following react.js workflows.
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
We (the LearnApp engineers) are a bunch of nerds who directly impact the daily lives of thousands of learners across the globe. As software engineer, we are the architect, designer, coder and maintainer of our projects. In other words, we are the owner of the product lifecycle. We don't just write code but actually we work closely with the product team to make vision become reality.
Responsibilities
- Analyze functional requirements and creation of software design
- Develop responsive and sleek web applications
- Design, develop, test, deploy, maintain, and improve software
Qualifications
- Bachelor's degree in Computer Science, a related technical field of study, or equivalent practical experience
- Experience in Object-Oriented Design and programming concepts
- A minimum of 3 years of working experience in a product oriented company
- Programming experience in Typescript or Javascript
- Experience in building responsive and fast user interfaces using modern web technologies
Preferred Qualification
- Experience in building SPA and PWA
- Experience building modern and good looking UI using latest CSS and SCSS
- Knowledge of Agile software development methodologies
- Ability to learn other coding languages as needed
- Object-oriented, database design
- Coordinate with development teams,analysts and product managers to ideate software solutions.
- Meet both technical and consumer needs.
- Design client-side and server-side architecture that can scale to thousands of end users.
- Develop and manage well-functioning servers, databases and applications.
- Ensure cross-platform optimisation and responsiveness of applications.
- Diagnose and fix bugs and performance bottlenecks.
- Document code and write automated tests to ensure the product is of the highest quality.
- Create security and data protection processes.
- Design and develop secure APIs.
- Monitor & optimise application performance
- Staying abreast of developments in web applications and programming languages.
- Ability to quickly adapt and migrate code to most current technologies.
- 3+ years of proven experience working as a Full Stack Developer
- 5+ years of enterprise software development experience
- Experience developing desktop, mobile and web applications
- Proficiency with multiple front-end languages and frameworks (e.g. HTML, CSS, JavaScript, React, React Native, Kotlin, Swift, jQuery)
- Knowledge of multiple back-end languages, specifically JavaScript frameworks (Node JS, Python)
- Knowledge of AWS, Firebase, GIT and Jenkins.
- Expertise in algorithms, data structures, JSON manipulation/ parsing, XML, caching and logging frameworks.
- Hands on experience with databases (e.g. Postgres, MongoDB), web servers (e.g. Apache, NGINX) and UI/UX design implementation.
- Strong organisational and project management skills.
- An analytical mind with good problem-solving skills and attention to detail.
- Excellent communication and teamwork skills.
- Degree in Computer Science, Statistics or relevant field.
- Work in a high-trust, high-transparency environment, that will literally change the way you engage with people in your professional and personal life.
- Do massive scale, meaningful work that transforms the workdays and lives of people.
- Join us in Goa or remotely from anywhere across the world.
Experience: 6+ Years
Essential Skills & Experience
- Must to have minimum of 3 years of experience in using Angular 2+ and above versions.
- Develop modern software applications and working with the team to solution definition and guide teams through execution and implementation
- Ensuring high performance on mobile and desktop
- Must have experience for writing tested, idiomatic, and documented Angular, JavaScript, HTML and CSS
- Must have knowledge of OOP concepts, industry best practices and architecture designs.
- Must have good understanding of web technology/enterprise level applications.
- Coordinating the workflow between the graphic designer, the HTML coder, and yourself
- Cooperating with the back-end developer in the process of building the RESTful API
- Communicating with external web services
- Experience should include structured source code management using SVN or GIT and build using MAVEN/Grunt.
- Good to have backend experience in any one of the backend technologies mentioned below:
- Java with Spring boot.
- PHP
- Need to have good experience in Web application designing.
- Good to have experience in Agile methodology.
Nice to Have
- Experience with web servers like Nginx or NodeJS
- Basic awareness of cloud orchestration frameworks like Kubernetes/Docker
- Understanding of Unit Testing Frameworks
BEHAVIORAL SKILLS
- Self-motivated and a Quick Learner
- Ability to consistently perform and meet deadlines
- Attention to detail and follow-through
- A good understanding of customer satisfaction
- Ability to work effectively in a team as well as in an individual environment
- Excellent written and verbal communication skills








