
React.js Developer

Job Summary
. Developing the latest user-facing features using React.js
· Designing a modern highly responsive web-based user interface
· Building reusable components and front-end libraries for future use
· Translating designs and wireframes into high-quality code
· Learn and understand user interactions
· Optimizing components for maximum performance across a vast array of web-capable devices and browsers
· Coordinating with various teams working on distinct layers
· As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive.
Technical skills:
· Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
· Thorough understanding of React.js and its core principles
· Ability to create a reusable stateful component using React hooks
· Prior experience with popular React.js workflows (such as Flux or Redux)
· Familiarity with more current specifications of EcmaScript
· Prior experience with data structure libraries (e.g., Immutable.js)
· Knowledge of isomorphic React is a plus
· Familiarity with RESTful APIs
· Familiarity with HTML / CSS
· GIT experience is a plus
· 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.
· Familiarity with working with the siren-JSON schema for generating forms.
· Familiarity with react-hook-form
· Ability to understand business requirements and translate them into technical requirements
· A knack for benchmarking and optimization
· Familiarity with code versioning tools
· jest and enzyme for red-green tdd
· understanding of feature flag
· lint and husky hooks

About centillion - a division of amexs business solutions pvt.ltd.
About
Connect with the team
Similar jobs

-
Experience with popular React.js workflows (such as Flux or Redux)
-
Experience with data structure libraries (e.g., Immutable.js)
-
Experience with standard front-end development tools such as Babel, Webpack, NPM, etc.
-
Thorough understanding of React.js and its core principles
-
Familiarity with RESTful APIs and backend services
-
Familiarity with code versioning tools such as Git, SVN, and Mercurial
-
Familiarity with modern front-end build pipelines and tools
-
Knowledge of isomorphic React is a plus
-
Knowledge of modern authorization mechanisms, such as JSON Web Token
-
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

Responsibilities
• Build applications using JavaScript frameworks such as React.js, Vue.js or svelte.js
• Build reusable UI components, ensuring that UI code base is scalable and maintainable
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Good in writing unit test cases, and can follow test driven development approach
• Participate in user experience design and architecture initiatives
• Collaborate with other team members and stakeholders to ensure smooth delivery and elicit new
requirements
• Perform troubleshooting steps, if any, in the phase of implementation, customization, and
configuration
• Having good debugging skills and proficiency in tool to build next-generation web apps
Mandatory Skills
• Knowledge of Functional and OO JavaScript/ES6
• Built web Applications using HTML5, CSS3, and JavaScript with Frameworks like React.js(Hooks
and context API), Vue.Js and svelte.js
• Basic understanding of Typescript and type language concepts
• Clear fundamental understanding of server-side rendered apps, experience with frameworks like
Next,js or Nuxt.js is the Best
• Good understanding of lib and frameworks like Webpack (4.0), lodash, any charting lib like d3.js or
Victory
• Expertise in using JavaScript state Management libraries such as Redux or Mobx
• Prior experience in building responsive design layouts using a formal framework like Material UI.
• Familiarity with best practices (web security concepts, ensuring browser & device compatibility,
etc.)
• Experience in development and debugging tools for cross-browser issues
• Working knowledge of integrating with RESTful APIs for server-side functionality
• Ability to work well individually and in a group setting, under pressure and deadlines
Requirements
• B.Tech/ B.S. or M.Tech/ M.S. in Computer Science, IT or related field.
• 5-8 years of experience.
Desirable Skills
• Hands-on experience with using Git (handling branching and merging), any DevOps pipeline,
• Experience with Agile methodologies


• 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.


Job Overview:
As a Software Engineer, you will work as part of a software development team and be responsible for
designing, implementing, and maintaining the back-end of fast-growing web/mobile applications.
You could be an ideal candidate if you have a Bachelor's degree in Computer Science from a reputed
college. You need to have expert-level programming skills in ReactJs and other related JS stack with a
deep understanding of Consumer experience. You should have experience working effectively in software
development teams ensuring tight deadlines are met. You should be passionate about writing elegant
code that solves meaningful real-life problems.
What will your role look like?
● Write well-designed, testable, efficient, and high-quality code in Javascript/React/Redux to
implement a modern highly responsive web-based user interface.
● Design (LLD & HLD) and architect technical solutions for the business problems of a large-scale
system.
● Prepare and produce releases.
● Enhance & maintain analytics and SEO of web applications.
● Contribute to all phases of the Software development lifecycle.
Roles and Responsibilities
Who are we looking for?
● B.Tech/M.Tech/MCA degree in Computer Science, Engineering or a related subject
● 2-4 years of relevant work experience
● Strong problem-solving skills, Computer science fundamentals, Data structures, and Algorithms
● Hands-on experience with Javascript - React, Redux, Thunk, Saga , webpack, NPM/Yarn,
Server-side rendering, Client caching, PWA, AMP etc.
● Solid understanding of frontend components like CSS3/SAAS, Material UI, Bootstrap etc.
● Experience working with Design tools like Figma/Sketch/Zeplin as a developer and implementing
the same in React
● Experience with all phases of the software development life cycle, best practices, and Agile
Software Development.
● Ability to work autonomously.

• Develop, and curate the web and app-based interfaces that thousands of Arzooo customers interact with on a daily basis.
• Build reusable code and libraries for future use.
• Ensure the technical feasibility of UI/UX designs.
• Ensure captured data validation to best standards.
Minimum Qualifications
• Proficient understanding of HTML5, CSS3.
• Good understanding of ReactJs and JavaScript.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Familiarity with React Native is a plus.
• Proficient understanding of code versioning tools, such as GIT
• Write well designed, testable, efficient and well documented code by using best software development practices.
• Excellent problem-solving ability and desire to learn new technologies and platforms

- Hands-on design and coding are mandatory.
- Design and develop new features and functionality for a consumer e-commerce product with rich UI content.
- 5+ years of experience in building single-page applications using modern JS frameworks.
- Expertise in React JS, ES6, HTML5, SCSS, and related technologies.
- Experience building front-end for products from scratch.
- Experience in building REST API, preferably using .Net Web API.
- Should have good experience with application design, implementation, maintenance, diagnosing/correcting issues, and maintaining compliance with industry security standards under minimal direction.
- Research and evaluate new software, frameworks, and techniques to provide recommendations to the division.
- Implement defect free quality code by writing appropriate unit-tests and regression tests.
- Should possess excellent Interpersonal and communication skills.
- Bachelor's degree in Computer Science or a technical field.

1. Translate designs and style guides into functional user interfaces while ensuring cross browser compatibility, performance and good user experience.
2. Solid coding practices with peer code reviews, unit testing and a preference for agile development.
3. Strong sense of collaboration, ownership, urgency and drive.
Technical Skills Required
1. 2+ years of experience in professional front end web and mobile development.
2. Strong programming knowledge in JavaScript, OOJS and Angular 2.0+ is essential.
3. Understand the intericacies of DOM and have good knowledge of APIs' and their performance implications.
4. In-depth knowledge about HTML5 and CSS3 and can take necessary decisions while building responsive UI.
5. Experience using version control (Git).
6. Sharp analytical abilities with excellent problem solving skills.
Good to have
1. Development experience in ReactJS / React Native.
2. Experience in SEO and website optimisation would be great.
Company Introduction
https://polyglots.io">Polyglots is a young and innovative software development agency located in Pune, India. Our expertise is to build highly scalable applications and infrastructure solutions for our partners and budding startups.
We provide end-to-end solutions ranging from cloud architecture to backend services and modern frontend development. We leverage agile methodologies, software life cycle best practices and cutting edge technology to deliver perfect solutions reflecting our passion for software development.
We care about our company culture and invest in people to create the best teams of highly skilled developers.
Job Description
We are looking for a Front-End Web Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the UI/UX designer and bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works.
Responsibilities
- 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
- Design mobile-based features
- Collaborate with other team members and stakeholders
- Stay up-to-date on emerging technologies
Skills And Qualifications
- 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. Familiarity with ES6 or Typescript would be a plus.
- Good understanding of Angular or React.
- Good understanding of asynchronous request handling, partial page updates, AJAX and Rest APIs.
- Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Gimp or Photoshop is a plus.
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of code versioning tools, such as Git / Mercurial / SVN.
- Working knowledge of server side technologies is a plus





