SDE 1 - Frontend Developer

Job Title: Senior Frontend Developer (Angular) – L4

Location: Mumbai

Experience: 7–12 Years

Role Overview

We are seeking an experienced Angular Developer (L4 level) with strong expertise in modern frontend technologies to build scalable, high-performance web applications. The ideal candidate will have deep experience in Angular, TypeScript, RxJs, ngRx, and a strong focus on unit testing and code quality.

Key Responsibilities

• Develop and maintain complex web applications using Angular (latest versions)
• Write clean, scalable, and maintainable code using TypeScript
• Implement reactive programming patterns using RxJs
• Manage application state effectively using ngRx (Store, Effects, Reducers)
• Design and implement reusable, performant UI components
• Ensure high code quality through unit testing (Jasmine/Karma or similar)
• Collaborate with backend teams, UX designers, and product stakeholders
• Optimize applications for maximum performance and scalability
• Participate in code reviews, architecture discussions, and technical decision-making
• Troubleshoot and debug complex application issues

Required Skills

• Strong experience with Angular (v10 or above preferred)
• Proficiency in TypeScript, JavaScript (ES6+)
• Hands-on expertise in RxJs (Observables, Operators, Subjects)
• Solid understanding of ngRx architecture and state management concepts
• Experience in Unit Testing frameworks (Jasmine, Karma, Jest, etc.)
• Knowledge of REST APIs and integration
• Familiarity with HTML5, CSS3, SCSS, and responsive design
• Understanding of frontend performance optimization techniques
• Experience with Git/version control systems

Preferred Qualifications

• Experience with CI/CD pipelines
• Exposure to micro-frontend architecture
• Knowledge of Agile/Scrum methodologies
• Familiarity with AWS/Azure or cloud-based deployments
• Strong problem-solving and analytical skills
• Behavioral Competencies
• Strong communication and collaboration skills
• Ability to mentor junior developers
• Ownership mindset and attention to detail
• Adaptability in a fast-paced environment

Seniority Level

L4 (Senior Individual Contributor)

Expected to drive modules independently and influence technical decisions

• Create website layout/user interface by using standard HTML/CSS practices
• Deep expertise and hands-on experience with Web Applications and programming languages such as HTML, CSS.
• The candidate must have a strong understanding of UI, cross-browser compatibility, general web functions, and standards.
• Candidate must have knowledge of standards used for creating a responsive website.
• The candidate will be able to edit digital images with photoshop.

• Proven experience of at least 1 year as a Web developer.
• Proficiency in front-end development web programming languages such as HTML and CSS, JQuery, and JavaScript.
• Proficiency in graphic design software including Adobe Photoshop, Adobe Illustrator, and other visual design tools.
• Excellent visual design skills.
• Creative and open to new ideas.
• Adaptable and willing to learn new techniques.
• Analytical mind and problem-solving aptitude

Job Description:

We are looking for an experienced JavaScript developer who is proficient with React.js. The primary focus of the selected candidate would be on developing user interface components implementing and executing them following well-known React.js workflows (such as Flux or Redux). Also ensuring that these components and the overall application are robust and easy to manage. A commitment to collaborative problem solving, sophisticated design, and quality products are important.

Responsibilities:

• 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
• 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.
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization

• Experience in developing apps using Reactjs with Redux, React hooks, react-router with Javascript ES6

• Developing new user-facing features using React.js

• Integrate APIs with frontend components using React.js

• Ensuring user experience determines design choices.

• Developing features to enhance the user experience.

• Striking a balance between functional and aesthetic design.

• Ensuring web design is optimized for smartphones.

• Building reusable code for future use.

• Optimizing web pages for maximum speed and scalability.

• Utilizing a variety of markup languages to write web pages.

• Maintaining brand consistency throughout the design.

• Degree in computer science or related field.

• Understanding of key design principles.

• Proficiency in React.js,HTML, CSS, JavaScript, and jQuery.

• Understanding of server-side CSS.

• Experience with graphic design applications such as Adobe Illustrator.

• Experience with responsive and adaptive design.

About CercleX:-

CercleX is a digital technology platform which is a leading https://cerclex.com/blog/waste-management-in-india/">waste management company in India  with an extended outlook of circularity through its various ventures into the field of sustainability.

We have received FICCI Impactful Cleantech Startup Award, MeitY Emerging Startup Award, TVS Capital Budding Nxt Gen Entrepreneur Award, and many more for our digital solutions enabling transactions between waste generators, and aggregators, processors, and bringing in complete transparency, traceability to the waste ecosystem.

https://play.google.com/store/apps/details?id=com.scrapmarketCCX">Cercle X ScrapMarket is an app that helps you buy and sell scrap by connecting 100% verified buyers and sellers of scrap across India. CercleX helps brands to accomplish their sustainability targets with https://cerclex.com/extended-producer-responsibility/">Extended Producer responsibility and research solid waste managemet on the environment to ensure the environment is eco-free.

Job Title : Software Engineer

Gogo has an exciting opportunity for a Software Engineer role who enjoys crafting great user experience and will help us design and develop our next generation airline services platform. You will be part of the team that is building a globally deployed platform for our customers using some best-in-class software technologies.

Job Summary:

The ideal candidate for this role will build and design the front-end user experience for the customer airline services platform. You will be a crucial working member of multi-disciplinary, highly skilled technical teams that design, develop, test, debug and document software, by providing high quality technical solutions and services that deliver business value and drive continuous improvement across the organisation.

Key responsibilities :

• Translate business requirements into technical details relevant to web application.
• Contribute in the design and implementation of UI changes across our product base. 
• Develop detailed technical analysis and design specifications based on functional requirements. 
• Develop modern web applications (progressive and responsive) in coordination with UI Team
• Collaborate closely with UX, Design, UI and web development teams to solve problems. 
• Develop complete front-end stack of projects using HTML/CSS/SASS, React and JavaScript.
• Integrate front-end UI with backend services.
• Build responsive web pages with HTML5, CSS, JS/React for the customer facing corporate websites.
• Define UI frameworks and architecture for websites that follow industry best practices for development

Required Skills & Experience:

• Bachelor’s Degree in Engineering with 5-8 Years’ experience in front end development
• Hands on experience Core web fundamentals: HTML, JavaScript, and CSS preprocessors like Sass or LESS.
• Front-end (CSS) frameworks like Foundation or Bootstrap
• AJAX (Asynchronous JavaScript and XML)
• MUST have Hands-on experience in ReactJS and Redux delivered project on ReactJS and played key role.
• Great understanding of Web technologies like XML, XHTML
• Client Server-side scripting languages such as web services development using RESTful implementations.
• Familiarity with the Flux Design Pattern or one of the libraries
• Unit Testing with Mocha, Karma or Jest
• Hands on with BDD Experience
• Experience working with RESTFUL API (1-2 Years’ Experience)
• Good Written and Oral Communication Skills

Gogo is the inflight internet company. We bring flexibility and performance to airlines and passengers alike across every device, every flight, everywhere—all powered by our global inflight network. Gogo’s worldwide inflight Wi-Fi services have made internet and video entertainment a regular part of flying. We are a diverse group of technologists, marketers, strategists, and any other function you can think of- all working together in extraordinary harmony. And that’s just the beginning.

We connect the aviation industry and its travellers with innovative technology and applications, and we do it all in a high-energy environment that welcomes the next challenge. Be prepared for a dynamic ride with people who are passionate about what they’re building. 

We are looking for a motivated React js developer to come join our team.

Roles & Responsibilities:

• React.js developers (about 3-5 years of experience) are involved in the interface
• component design from implementation to testing.
• Implement user interface components for JavaScript-based web and mobile applications using the React open-source library ecosystem.
• Should have proficiency in front end languages HTML, CSS, JavaScript, and JavaScript
• frameworks like REACT, Angular JS.
• Have knowledge in REACT tools such as react.js, Webpack, Enzyme, Redux, and Flux. Previous experience in user application.
• interface design is essential.
• Must have hands-on experience in payment gateway,3rd party API integration, Security encryption & decryption experience.

Skills:

• A good attitude toward work, Strong problem-solving skills
• Desire to work in a fast-paced environment along with project and time management skills
• Ability to work independently or with a group