
Senior Front End Engineer (React.js & React Native - Mobile Experience)
Job description
Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at a massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a Front End software engineer, you will work on the ReactJS & React Native (Mobile Experience) powered user interface used by Fulfil merchants to manage their back-office operations. This is mission critical software and your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux) & React Native (Mobile Experience). You will ensure that these components and the overall application are robust and easy to maintain. In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality are important.
What You’ll Do:
- Collaborate with a small yet extraordinarily talented team of engineers to implement front-end technologies
- Develop new user-facing features using React.js & React Native (Mobile Experience)
- Work closely with the Design and Product teams to translate complex technical workflows into delightful user experiences
- Define how Fulfil builds user interfaces and ensure that we’re utilizing and keeping up with modern web standards
- Continually test, measure, and iterate on the results of your work in the spirit of continuous improvement
- Write clean, reusable, and well-tested front-end code
- Help to bridge the responsibilities of the Product and Engineering teams, spending time with both on the way to launching new products
- Architect efficient and reusable front-end abstractions and systems that drive complex web applications
- Build and contribute to open source projects
- Build reusable components and front-end libraries for future use
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
Requirements
We’re Looking for Someone With:
- 5+ years of experience as an engineer
- Experience in building large-scale web applications in a fast-moving team environment
- A strong understanding of UX and UI design standards
- The perfectionist’s touch on a pragmatist’s deadline: you strive for pixel-perfection and intuitive functionality
- Strong proficiency in JavaScript (2-4 Years of experience), including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js & React Native (Mobile Experience) and its core principles, with experience in popular React.js workflows (such as Flux or Redux)
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc
- The ability to bring any design to life with HTML and CSS, with cross browser compatibility and accessibility
- Smarts, humility, communication skills, and equal willingness to teach and learn
- Familiarity with RESTful and GraphQL APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in developing large client side JavaScript applications
- Familiarity with code versioning tools like GIT
- Experience with Javascript testing tools and test automation
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Demonstrated work beyond the front-end, experienced in integrating with a wide array of back-end technologies and services (e.g. experience with Python, AngularJS)
- Experience developing large client-side applications and optimizing them for performance
- You can straddle client and server development, creating APIs that drive web apps
- You understand the intricacies of timezones
- Web optimization, performance tools, and load testing
- You maintain or contribute to an open-source project

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Position: Front-end developer ( Mobile App)
Location: Bangalore
About us
RockED is a fast-growing EdTech company building a microlearning platform that delivers byte-sized, engaging content to learners on their mobile devices. Headquartered in Florida, with our R&D team based in Bangalore, we are focused on creating intuitive, learner-first experiences through thoughtful design and strong engineering.
Your Impact
We are looking for a skilled Frontend Developer to join our Engineering team in Bangalore. You’ll be responsible for building high-quality, scalable, and user-friendly interfaces for our mobile-first platform using JavaScript and React Native.
- Develop and maintain scalable, high-performance frontend applications using JavaScript and React Native
- Translate product requirements and UI/UX designs into clean, efficient, and reusable code
- Collaborate closely with product managers, designers, and backend engineers
- Optimize applications for performance, reliability, and responsiveness
- Write well-structured, testable, and maintainable code
- Participate in code reviews and contribute to engineering best practices
- Stay updated with evolving AI technologies and encourage the team to leverage AI tools effectively to improve development efficiency and innovation.
What skills do you need?
- Hands-on experience in frontend mobile application development
- Strong proficiency in JavaScript and React Native
- Experience building and shipping mobile applications (Android/iOS)
- Solid understanding of frontend architecture, performance optimization, and state management
- Familiarity with REST APIs and integration with backend services
- Experience working in an Agile/Scrum development environment
- Ability to think strategically when designing systems—not just how to build, but why
Why choose a career at RockED?
- Build from Day One: Work in small, fast-moving teams solving real problems and building
- products from the ground up.
- Learn from Industry Leaders: Collaborate directly with leaders who’ve held senior roles at global
- Companies like Adobe, Microsoft, Walmart, and more.
- AI Expoure: We encourage engineers to leverage AI tools and emerging technologies to improve
- productivity, experimentation, and innovation.
- Global Exposure: Be part of a diverse, high-calibre team working closely across the US and India.
- People-First Benefits: Health insurance coverage for you and your family—fully sponsored by RockED.
We are looking to hire an experienced developer to join our dynamic team. As a developer, you will be responsible for creating a top-level coding-base using Angular best practices. Your role will require you to implement an exciting and streamlined user experience in the form of a Java-based desktop and mobile web-app.
To ensure success as a developer, you should have extensive knowledge of theoretical software engineering, be proficient in JavaScript, HTML, and CSS, and have excellent project management skills. Ultimately, a top-class Angular developer can design and build a streamlined application to company specifications that perfectly meet the needs of the user.
Experience: 3 years and more
Skills set: Angular, Reactjs, Javascript, HTML/CSS
Responsibilities:
- Designing and developing user interfaces using angular/react best practices.
- Adapting interface for modern internet applications using the latest front-end technologies.
- Writing JavaScript, CSS, and HTML.
- Developing product analysis tasks.
- Making complex technical and design decisions for Angular projects.
- Developing application codes and unit tests in Angular, Java Technologies, and Rest Web Services.
- Conducting performance tests.
- Consulting with the design team.
- Ensuring high performance of applications and providing support.
Requirements:
- Bachelor’s degree in computer science, computer engineering or similar.
- Previous work experience as an angular/ reactjs / frontend developer.
- Proficient in CSS, HTML, and writing cross-browser compatible code.
- Experience using JavaScript building tools like Gulp or Grunt.
- Excellent project management skills.
- Proven experience implementing front-end and back-end JavaScript applications.
- Excellent communication skills.
- Critical thinker and good problem-solver.
One of our premium-based product customers, we are looking to hire a team of software Developers in Bangalore, looking for Tech Geeks, who have 2+ years of experience full-time.
SENIOR SOFTWARE DEVELOPMENT ENGINEER - FRONTEND
● Overall, 2-4 years of experience.
● Solid foundations of Javascript, Responsive web, CSS, Semantic HTML and how the
internet works.
● Strong proficiency with React and its core principles. React Native is a plus.
● Solid understanding of Chrome dev tools, APIs and frontend performance.
● Working knowledge of GitHub and popular cloud platforms like AWS, Fly, Cloudflare,
etc.
● Understanding of software design patterns, high-level design and architecture.
● Ability to independently do LLD and technology exploration around a given problem
statement.
- Ensuring high performance on mobile and desktop
- Writing tested, idiomatic, and documented JavaScript, HTML and CSS
- 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
We are looking for a great JavaScript developer with experience in the range of 2 to 6 years, who is proficient in frontend techlogies with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
We are hiring 2 ReactJS Developers. Candidates having experience of working on charts/graphs like d3.js, chart.js will have an added advantage.
Selection Criteria
If your profile has selected then you have to attend a 5 hours assignment to move your candidature to the final round of interview.
Responsibilities
- 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 code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Technical Skills
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with newer specifications of EcmaScript
- Experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- 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
- Familiarity with code versioning tools such as Git.
-Linux/ MAC OS exposure is a must
-Knowledge of Adobe Illustrator.
-Good interpersonal skills.
-Understanding of key design principles.
-Good problem-solving skills.
-Good to Have: Jest, enzyme, Mocha, Chai, Sinon
Responsibilities:
- Build customer facing technology product for global customers.
- Own the Product's frontend and backend development, building reusable, testable, and scalable code
- Research, evaluate, analyse and implement technical requirements
- Collaborate with product management teams to define and implement innovative solutions for the product direction, visuals and experience
- Mentor Junior members of the team
Requirements:
- 5+ years of experience building scalable products, distributed applications product/services in JavaScript and one of Angular/React
- Should have sound knowledge and experience in HTML and CSS
- Familiarity with UI layout, and CSS grid system or experience working with Bootstrap or any other CSS frameworks is a must
- Should have worked on the complete UI lifecycle of converting UI/UX designs into prototypes, write reusable modules
- Implement UI development principles to ensure client side scaling and clean and maintainable code that performs well on various performance metrics
- Understanding of multiple delivery platforms, such as Mobile & Web and developing Responsive UI
- Designing Unit Test cases, integrated test cases using Selenium and Protractor
- Strong coding and problem solving skills
- Ability to own end-to-end deliveries, right from requirements till release
- Excellent coding skills and ability to produce high quality, bug free and testable production grade code
- Experience working in an Agile/Scrum development process
- Ability to review code and continuously push for higher standards of development
- Knowledge of both SQL and NoSQL database services and related tools with the expertise to create efficient schemas, preferably MongoDB would be nice to have








