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 using Typescript. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
To ensure success as a react.js developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class react.js developer should be able to design and build modern user interface components to enhance application performance.
React.js Developer Responsibilities:
- Meeting with the development team to discuss user interface ideas and applications.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing a highly responsive user interface 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:
- Bachelor’s degree in computer science, information technology, or a similar field.
- 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, Typescript, Redux, Flux, HTML / CSS.
- Experience working with Graphql and Hasura is a plus
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.
- Minimum of 2 years experience with React Js
- Minimum of 3 years of web development experience.

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A B.Tech/M.Tech in Computer Sc, an UI specialist should have 5-7 years of experience in UI development. We are specifically looking for a specialist who has:
- in depth understanding of Single Page Application Development.
- high expertise in ReactJS concepts, including the modification and creation of ReactDOM /Virtual DOM elements and testing of ReactJS components (Jest, Enzyme)
- proficiency in JavaScript Functional Programming techniques (JavaScript, Strong Understanding of JS Array functions, Ability to build Pure JS functions, Modular JS Development, Proficient in using Webpack bundling)
- strong understanding of JSX Layout dynamics and Styling (JSX, JSS)
- strong understanding of global state management libraries e.g. Redux
- proficiency in agile development environment under open source gitlab including testing, change management
- exposure to full life cycle of enterprise product development
- [Desirable] high level of skill with UI Frameworks such as Material-UI (React) and Prime React
Responsibilities:
- Review, Evaluate, and Validate technical requirements.
- Work and lead other team members to translate the requirements into final deliverables.
- Understand Storyboards and Visual mock-ups.
- Understand and utilize the latest tools, technologies, and trends in Web development.
- Ensure the deliverables meet Primathon standards, and guidelines.
- Developing your frontend capability in complex problems and expanding your horizon of technologies.
- Responsible for designing, coding and modifying web pages that are focused on content within the standards, guidelines and requirements of clients.
- Work with clients, and other team members as appropriate.
- Understand and utilise the tools and technologies being used.
- Work with CTO to keep on track with the project plan.
- Come up with efficient, modular and scalable solutions for business and technical problems.
Requirements:
- Experience with Frontend technologies (React.js ).
- Proficient understanding of web markups, including HTML, CSS-3
- Proficient with modern JavaScript (ES6+: classes, modules, arrow function, destructuring etc).
At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.
Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.
About the position
F5 is looking for a Software Engineer with expertise in designing Web UI automation solutions to test high-scale distributed systems. You will collaborate with architects and application development teams to vet and validate test automation for an edge computing platform that is used to deploy global, scalable and secure applications.
Responsibilities:
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Understand the product architecture and come up with a frontend testing strategy such that quality is driven into the heart of the development process
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Perform integration tests on web services & APIs using SauceLabs, Postman, Swagger and other testing tools
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Design test and automation infra to test functionality, scale, performance, and reliability to ensure predictable delivery of quality releases
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Design and implement different test strategies - black box, grey box, and white box - to ensure the product is finished, secure, and effective
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Research, recommend and implement tools as needed to ensure quality
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Build test frameworks working within CI/CD pipeline processes, and provide automation expertise to development teams
Minimum Qualifications:
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Experience in designing automation software from the ground up, choosing the right infrastructure components, evaluating both open source and closed source software
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Hands-on experience with JavaScript (TypeScript will be a plus)
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Strong working knowledge of test automation frameworks and tools: Selenium, WebDriver, SauceLabs, Protractor, Gitlab CI, Jenkins, Jasmine, Karma
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Practical experience with CI/ CD methodologies & tools
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Good understanding of Testing fundamentals, Bug life cycle, SDLC, STLC, Smoke testing, Sanity testing, Regression testing
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Prior working experience in Web-based projects with a strong understanding of UI, cross-browser compatibility, general web functions, and standards is a must.
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Good written and verbal communication skills and flexibility to work with teams in different time zones
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BS/MS degree in Computer Science or equivalent with 6-10 years of experience in software development and/or test automation
Desirable:
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Experience with load balancer products such as F5, Envoy, Nginx, HA proxy
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Experience with Kubernetes container technology, Terraform, AWS
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Good understanding of networking protocols, HTTP/HTTPS, Proxies TCP, UDP, IP, HTTP, SSL, DNS, FTP, origin pools, etc
About the company
F5 provides a distributed cloud platform to deploy, connect, secure and operate applications and data across multi-cloud and edge sites. Line-of-business leaders can drive business transformation and automation by distributing workloads closer to business activity. DevOps teams can manage fleets of applications and infrastructure with less complexity. Network teams can simplify application connectivity and security across clouds.
The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.
Equal Employment Opportunity
It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination. F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job.
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Strong foundation in Javascript.
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Attitude for getting things done.
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Experience building web applications, Single page applications and PWAs.
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Demonstrated ability to learn new technologies and keep abreast of the fast-changing javascript environment.
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Experience using CSS pre/post processors.
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Experience with build tools like webpack.
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Experience in frontend automation using (Grunt/Gulp etc).
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Experience using cutting edge front-end technologies (e.g. Service Workers, Web notifications).
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Experience with popular frameworks like (React/Vue etc).
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Experience using Git.
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Experience with Continuous Integration platforms (Jenkins/CircleCI)
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Minimum product dev experience of 2+ years in web/mobile startups with expertise in designing and implementing high performance web applications.
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Bonus Points for: * Writing unit test. * Experience with NodeJs. * Deploying scalable web servers. * Contribute to the wider Javascript community via open source.
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We are looking for Javascript wizards who can work with designers, product managers to collaboratively own the front-end, building responsive and elegant mobile+desktop web UIs at Mobishaala. 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.
Desired Candidate profile
● Architect and build scalable front-end web solutions using JavaScript, React, HTML, CSS and other fundamental web technologies.
● Build reusable code and libraries using iterative development practices for future use
● Ensuring high performance on mobile and desktop.
● Implement monitoring, metric dashboards, runbooks, logging, escalations, and alerts.
● Drive code and design reviews of components / systems / products in scope and drive the architectural governance for them.
● Implement best practices and constantly learn new ways of keeping code bases up to date
Roles and Responsibilities:
● A solid grounding in Computer Science fundamentals (based on a Bachelor's or Master's in Computer Science or related field) from reputed institutes
● 4+ years of development experience in modern web technologies (HTML/CSS, JavaScript), frameworks (React, Backbone.js, AngularJS, , etc)
● Ability to build a feature from scratch & drive it to completion
● Prior hands-on experience in building responsive web interfaces at scale for consumers in a product engineering setup
● Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
● Excellent problem solving, debugging and optimization skills
● Strong knowledge of browser behavior, performance, compatibility and cross-browser issues
● Good understanding of REST API
● Familiar with front-end build tools, such as Webpack, Grunt and Gulp.js
● Proficient understanding of code versioning tools, such as Git
● Open source contribution is a plus.
Designation: React JS developer
Experience: 1-4 years
Location: Chennai
Must have work experience in React.JS and front end development.
Job description
- Strong programming skills in JavaScript.
- Experience with ReactJ, frontend frameworks like bootstrap, Jquery.
- Good knowledge in HTML5, CSS, CSS3 and Object Oriented concepts
- Experience in working with RESTful APIS.
- Experience with HTTP, HTTPS and WebSockets.
- Knowledge in version control- Git, Subversion.
- Exposure to OWASP standards and guidelines.
Responsibilities
As a Frontend Developer (Next.js) you will be responsible for -
- Building the Complete UI/UX of our web application from scratch.
- Work closely with the Backend Engineer to integrate the algorithmic output from the backend REST APIs.
- Work closely with the product owners to create dynamic infographics with intuitive user controls.
- Work closely with our web Designer for bringing design to life.
- Participate in UAT, troubleshoot, bugs and application integration issues
- Create and maintain documentation related to the developed processes and applications
Qualification & Experience
- 2-3 years of demonstrable experience designing, building and working as a Next.js Developer for enterprise web application
- Ideally, this would include the following:
- Expert-level proficiency with Next.js and all its concepts
- Expert-level proficiency with JavaScript (ES6), HTML5 & CSS
- Expert-level proficiency with ReactJS and all its concepts like Hooks and Redux
- Familiarity with Python, Django, and Django Rest Framework
- Understanding of REST concepts and interacting with REST APIs
- Deep understanding of a few UI concepts:
- Cross-browser compatibility and implementing the responsive web design
- Familiarity with common JS visualization libraries built using D3, Chart.js, Highcharts, etc.
- Understanding of Next.js coding Standards
- Experience working with UX designers and bringing design to life
- In addition, the ideal candidate would have great problem-solving skills and familiarity with code versioning tools such as Github

We are looking for a Front end web developer passionate towards building high performance web
applications which can scale for B2C businesses. We are looking for self-driven individuals who love to
find innovative solutions and can perform under pressure. An eye for details and being proud of produced
code are the must have attributes for this job.
Responsibilities.
● You will be responsible for converting Product team requirements to modular, testable and
efficient code.
● You will be required to design and implement data storage solutions (Databases, caching layers
etc).
● You will also be required to cater to NFRs related to security and performance.
Skills
● 3+ years experience in JavaScript and clarity of core Javascript language basics.
● Excellence in React JS/AngularJS.
● Excellent in HTML5 and CSS3.
● Hands on experience of UI Libraries like jQuery.
● Hands on experience with code versioning systems like Git, SVN.
● Hands on Excellent debugging and problem solving skills.
● Experience with Responsive/Mobile Design.
● This person is excited about creating pixel perfect, reusable, extensible, flexible, high-performing
front-end experiences that integrate seamlessly with back-end code.
● The ability to adapt to the ever-changing technology landscape.
● You are excited about keeping up-to-date by experimenting with new technologies and
frameworks.
Years of Exp: 4-8 yrs
Qualification:
● Engineering graduates from Tier I or II institutes.
● B.E/ B.Tech/ ME/ M.Tech
Strong understanding CSS frameworks
Has strong understanding of HTTP protocol and can integrate UI with RESTful APIs








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