


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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Role Summary:
As a Senior UI Developer, you will be responsible for building intuitive, high-performance, and
responsive user interfaces using Angular, JavaScript, HTML, and CSS. You’ll work closely with
our UX designers, product managers, and backend engineers to create web experiences that
deliver value to our users and business alike.
Key Responsibilities:
● Participate in code reviews, unit testing, and troubleshooting.
● Collaborate with product managers and designers to craft user-centric features and
interfaces.
● Optimize applications for performance, scalability, and cross-browser compatibility.
● Ensure applications meet performance, accessibility, and responsiveness standards.
● Contribute to architectural discussions and propose improvements to existing codebase
and design patterns.
● Develop and maintain scalable and responsive web applications using Angular
(preferably Angular 13+).
● Write clean, well-documented, and reusable code in JavaScript, HTML5, and CSS3.
● Apply design principles to create intuitive and aesthetically pleasing UIs aligned with
brand guidelines.
Required Skills:
● 6+ years of web development experience.
● 3+ years of hands-on experience in Angular development (Angular 8+ mandatory,
Angular 13+ preferred).
● Strong proficiency in JavaScript (ES6+), HTML5, and CSS3.
● Familiarity on state management with RxJS, NgRx, and RESTful APIs integration.
● Sound understanding of responsive design, cross-browser compatibility, and
accessibility standards.
● Experience with SASS/SCSS, Bootstrap, Material, or other CSS frameworks.
● Understanding of web performance optimization and SEO basics for SPAs.
● Solid grasp of web design principles including layout, typography, color theory, and
usability.
● Experience with Git, CI/CD pipelines, and agile development practices.
● Experience in the travel tech domain is a strong plus.
Good to Have:
● Experience with Node.js, Express JS, MongoDB.
● Understanding of internationalization/localization in web apps.

About the Role
We are seeking a creative and technically strong Frontend Developer with expertise in 3D animations to join our team. You will play a key role in building interactive, visually engaging, and high-performance web applications using modern frameworks and 3D libraries. This role involves close collaboration with designers, product managers, and backend engineers to deliver immersive digital experiences.
Key Responsibilities
- Develop and maintain responsive, user-friendly web applications.
- Implement 3D models, animations, and interactions using Three.js, WebGL, or Babylon.js.
- Collaborate with UI/UX designers to transform creative concepts into smooth, interactive experiences.
- Optimize performance for real-time rendering and animations across devices and browsers.
- Integrate backend APIs for data-driven 3D visualizations and dynamic content.
- Stay updated with the latest trends in frontend development, 3D frameworks, and animation tools.
- Ensure cross-browser compatibility, scalability, and maintainability of code.
Required Skills & Qualifications
- 3+ years of professional experience as a Frontend Developer.
- Strong proficiency in HTML5, CSS3, JavaScript (ES6+).
- Experience with React.js / Next.js (or other modern frontend frameworks).
- Hands-on expertise in 3D libraries: Three.js, WebGL, Babylon.js (or similar).
- Knowledge of animation frameworks: GSAP, Framer Motion, Anime.js.
- Strong understanding of rendering performance optimization (shaders, textures, lighting).
- Familiarity with design tools: Figma, Adobe XD, Blender, or similar.
- Excellent problem-solving, debugging, and communication skills.

We are looking to hire an experienced angularJS developer to join our dynamic team. As a lead 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 an angularJS 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 angularJS developer can design and build a streamlined application to company specifications that perfectly meet the needs of the user.
AngularJS Developer Responsibilities:
Designing and developing user interfaces using angularJS 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 AngularJS projects.
Developing application codes and unit tests in AngularJS, Java Technologies, and Rest Web Services.
Conducting performance tests.
Consulting with the design team.
Ensuring high performance of applications and providing support.
AngularJS Developer Requirements:
Bachelor’s degree in computer science, computer engineering or similar.
Previous work experience as an angularJS developer.
Proficient in CSS, HTML, and writing cross-browser compatible code.
Experience using JavaScript building tools like Gulp or Grunt.
Knowledge of JavaScript MV-VM/MVC frameworks including AngluarJS.
Excellent project management skills.
Proven experience implementing front-end and back-end JavaScript applications.
Excellent communication skills.
Critical thinker and good problem-solver.

Job Description :
- Develop new user-facing features using ReactJS.
- Collaborate with product managers and designers to translate design mockups and wireframes into functional components.
- Build reusable components and libraries for future use.
- Optimize components for maximum performance across different devices and browsers.
- Ensure the technical feasibility of UI/UX designs and provide feedback on design feasibility.
- Participate in code reviews to maintain code quality, readability, and consistency.
- Collaborate with back-end developers to integrate front-end and back-end components seamlessly.
- Stay up-to-date with the latest trends and best practices in front-end development and ReactJS.
- Troubleshoot and debug issues that arise during development and in production.
- Actively contribute to improving development processes and workflows.
- Active knowledge of node and npm
- Proficient understanding of ReactJS and its core principles.
- Strong experience in JavaScript, HTML5, and CSS3.
- Familiarity with RESTful APIs and asynchronous programming.
- Knowledge of state management libraries such as Redux.
- Understanding of version control using Git.
- Familiarity with front-end build tools and pipelines, such as Webpack or Babel.
- Knowledge of testing frameworks such as Jest, Enzyme ably AWS

We are looking to hire an experienced AngularJS 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 an AngularJS 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 AngularJS Developer can design
and build a streamlined application to company specifications that perfectly meet the needs of
the user.
AngularJS Developer Responsibilities:
Designing and developing user interfaces using AngularJS best practices.
Strong in UI Development
Strong in Angular 7 and above
Good knowledge on Bootstrap framework
Strong in developing Single Page Applications
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 AngularJS projects.
Developing application codes and unit tests in AngularJS, Java Technologies, and Rest
Web Services.
Conducting performance tests.
Consulting with the design team.
Ensuring high performance of applications and providing support.
AngularJS Developer Requirements:
Bachelor’s Degree in Computer Science, Computer Engineering or similar.
Previous work experience as an AngularJS Developer.
Proficient in CSS, HTML, and writing cross-browser compatible code.
Experience using JavaScript building tools like Gulp or Grunt.
Knowledge of JavaScript MV-VM/MVC frameworks including AngularJS.
Excellent project management skills.
Proven experience implementing front-end and back-end JavaScript applications.
Excellent communication skills.
Critical thinker and good problem-solver.
Location:
Willing to work from Hyderabad location
We are Equal Opportunity Employer/Disability/Veterans
Willing to join immediately or within 15 days

Our frontend (React) team is passionate about React Technology and we are working on a few world-class products which have their roots and frontend in React Technology along with Redux, web-hooks, and Reducers. Keeping performance, scalability, usability, and user acceptance in mind, we are looking for a smart frontend engineer that has experience developing a variety of Web Applications using React Technology. (Along with strong frontend expertise, needs a good understanding of how frontend applications work in different browsers and have a mobile responsive design)
Roles & Responsibilities
Basic roles and responsibilities are mentioned for the engineer at our team:
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- 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.
- Good understanding of async functions and their concepts.
- Your primary focus will be on developing user interface components and implementing them following well-known ReactJS workflows (such as Flux or Redux).
- A Commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities.
- Developing new user-facing features using ReactJS
- Familiarity with modern front-end builds pipelines and tools.
- Translating designs and wireframes into high-quality code.
- Thorough understanding of ReactJS and its core principles.
- Experience with popular React.js workflows. (such as Flux or Redux)
- Familiarity with RESTful APIs.
- Building reusable components and front-end libraries for future use.
- Knowledge of modern authorization mechanisms, such as JSON Web Token and Oauth.
- Good knowledge of CSS and other latest frameworks like a tailwind CSS / Bootstrap.
Person Specification and Qualifications
- Experience developing highly scalable Web applications.
- Knowledge of Media Queries and CSS via useful frameworks.
- Strong experience with React frameworks with components like Redux, Flux, Webhooks.
- Good knowledge of code versioning (git / Github)
- Good experience with code deployment on servers like Ubuntu, Linux systems.
- In-depth knowledge of designing and developing software in distributed architectures for multi-tier applications
- Basic understanding of docker to work with different major versions of Node js and database release(Postgres, MySQL, etc)
- Good knowledge to write and train the team to write unit test cases for the application code.
How to Code Review
- You would be knowing how to do a basic code review of team and junior NodeJS engineers.
Plus points if you're familiar with the following:
- Experience with deployment and CI/CD is a plus!
- Have worked with Testing libraries
- Good Verbal and Written communication Skills.



"Are you looking to build products that can change the world and help us reach our target of improving 1 billion lives?"
**RESPONSIBILITIES**
To ensure that projects are delivered efficiently using the best fit-for-purpose technology with sufficient quality standards. To inform technical decision making at Curve.
**ESSENTIAL EXPERIENCE**
* 3+ years experience with either React JS, React Native or Angular4+
* Good working understanding and experience with mobile app development best practices
* Write well designed, testable, efficient code by using the best software development practices
* Knowledge of Test Driven Development (Unit Testing)
* Knowledge of Behaviour Driven Development (UI Testing)
* Experience using unit testing frameworks
* Experience using E2E test frameworks and runners
* Continuous Integration (e.g. CircleCI, Travis)
**ESSENTIAL QUALITIES**
Strongly aligned values with Curve values (below)
* Good Communicator
* Not afraid of solving problems using multiple development stacks
* Proactive thinking with a ‘can do’ attitude
* Strong problem solving skills, using root cause analysis to find issues and identifying potential solutions
* Should be able to research and understand undocumented application codebases
* A love of learning
* Team player
* High level of Emotional Intelligence
**DESIRABLE EXPERIENCE**:
* Ionic experience
* Mobile development (iOS or Android) experience or exposure
* Good working understanding and experience with CSS and popular CSS preprocessors (SASS / LESS)
* Heroku / AWS or similar infrastructure exposure or experience
* iOS Appstore / Android Play store experience
* Working with remote teams
* Token based authentication (e.g. JWT)
**ABOUT CURVE**
Curve is an award winning global digital health company that creates products that directly improve lives.
**Company Purpose**: To positively impact 1 billion lives by solving challenging health problems.
**Curve Values**
* Improve myself, each other & our partners
* Solve problems that improve people’s lives
* Everyone leads
* Become comfortable with being uncomfortable
* Only create products that people love
* An amazingly genuine, engaging and friendly culture.
* Flexible working hours.
* Glass Door Rating of 5
Requirements and Qualifications
- Bachelor’s or master degree in engineering
- 7+ years of work experience, 1+ years of experience as a lead
- Proficient understanding of HTML, CSS, and Javascript
- Proficient understanding of ReactJs or similar library
- Good understanding of responsive web development
- Good understanding of SEO and analytics
- Ability to break the business problem into smaller features
- Ability to access the technical feasibility of UI/UX designs
- Build reusable code and libraries for future use
- Optimize application for maximum speed and scalability
- Proficient understanding of cross-browser compatibility


