
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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WHO YOU ARE
To be successful in this role, you’ll need to have the following skills:
- Love for coding: A fanatic about writing beautiful and scalable code.
- Sense of analytics: Strong analytical and troubleshooting skills. Should be resourceful, innovative and inventive.
- Dynamic: Should be comfortable in dealing with lots of moving pieces. Have exquisite attention to detail, and are comfortable learning new technologies and systems.
- Team player: Knack for influencing without being authoritative. Pitch in wherever the team needs help, from writing blog posts to supporting customers.
- Accountability: High sense of ownership for your code and relentlessness to deliver projects with high business impact.
KEY QUALIFICATIONS
- BE/BTech in Computer Science or related field.
- Minimum 3+ years of UI/Frontend development and a strong understanding of building complex layouts using JavaScript, CSS and HTML.
KEY SKILLS
- Strong computer system analysis and design skills in current methodologies and patterns including vanilla JavaScript, some experience with ReactJS, Redux, React Native, Webpack, and Typescript or similar library/tools.
- Obsessed with WPO (Web Performance Optimization) and web/mobile performance analysis.
- Experienced with web standards and protocols such as HTTP, DNS, TCP/IP, and socket APIs in general.
- Familiar with web security, SEO, accessibility and internationalization.
- Experience: 5+ years of professional experience in front-end development with a strong focus on React.js.
- Technical Skills: Proficiency in JavaScript (ES6+), HTML5, CSS3, and modern JavaScript frameworks/libraries.
- React Expertise: Deep understanding of React.js and its core principles, including hooks, context API, and state management.
- Tools: Experience with version control systems (e.g., Git), build tools (e.g., Webpack), and testing frameworks (e.g., Jest, React Testing Library).
Preferred Qualifications:
- Experience with: Knowledge of TypeScript, Redux, and modern front-end build pipelines and tools.
- Design: Familiarity with UI/UX design principles and responsive design.
- Blockchain: Understanding of blockchain technologies and cryptocurrency concepts is a plus.
• Research, design and build highly reliable, available, and scalable solutions that can
handle Millions of API calls across systems.
• Own large technical deliverables and execute in a structured manner, complete
ownership of functional Services that your team is responsible for.
• Take the accountability of the overall health of the products you build and
predictability of the deliverables of your team.
• Lead by example, mentor and guide team members on everything from structured
problem solving to development of best practices
• Platformize components as libraries, utilities and servicify and promote reuse.
• Be able to conceptualize and develop prototypes quickly
• Drive the technical roadmap of the team in collaboration with Product and Business
Teams.
Requirments:
• BTech, MTech in Computer Science or a related technical discipline (or equivalent).
Or high technical acumen and rich technical experience
• Good understanding of how the web works and Strong proficiency with HTML,CSS,
JavaScript
• Hands on experience with ReactJS
• Experience with Typescript, NextJS will be a plus.
• Strong experience on with the react ecosystem for eg, redux, react-query, reactrouter etc.
• Experience with NextJS will be a plus.
• Knowledge on deployment and hosting react apps & server side rendering will be a
plus.
About Job
HelloAR is actively seeking React JS developers with strong proficiency in Three.js to join our growing technical team.
Qualifications:
- Proficiency in modern JavaScript, including ES6 and promises.
- Previous experience with React.js in either a commercial setting or personal projects.
- Understanding of common browser APIs and recent HTTP protocol extensions relevant to frontend development.
- Familiarity with state management libraries such as Redux.
- Experience working with 3D libraries like Three.js.
- A problem solver who enjoys challenges and puzzles.
Responsibilities:
- Develop and maintain HelloAR's React applications.
- Create UI components based on provided designs.
- Produce reusable code and libraries for future use.
- Collaborate with team members and stakeholders.
- Contribute to team development and initiatives.
About HelloAR:
HelloAR is a Remote Presentation platform for physical products. Our platform empowers users to create immersive product catalogs, 3D product configurators, sales tools, e-commerce experiences, collaboration tools, and more. We offer well-designed APIs, a 3D design marketplace, a drag-and-drop admin tool, SDKs for various web and mobile platforms, SDKs for VR platforms, and out-of-the-box solutions that enable users to deliver exceptional product presentations to their customers.
Expectations for Our Engineers:
- Tackle challenging problems.
- Take pride in producing high-quality code.
- Display interest in Augmented Reality.
- Build simple yet powerful web applications.
- Embrace the unique challenges of working in a startup environment.
- Possess knowledge (or a willingness to learn) about 3D and computer graphics.
- Be open to experimentation, learning, and becoming experts in new languages and platforms.
- We are seeking developers who not only excel in programming but also have the ability to question specifications and propose better solutions for users.
UI Developer Responsibilities:
- Work with other developers to ensure that the website is functional and visually appealing.
- Liaise with the client to gauge their needs and expectations.
- Plan the layout of the website.
- Ensure that the website is optimized for various devices.
- Use analytics to test client enjoyment.
UI Developer Requirements:
- Proficiency in HTML, JavaScript, jQuery, and CSS.
- Knowledge of Adobe Illustrator.
- Good interpersonal skills.
- Understanding of key design principles.
- Good problem-solving skills.
- 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
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- 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
- 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
- Ability to work through new and difficult React Native Issues and contribute to libraries as needed.
- Ability to create and maintain continuous integration and delivery of React Native applications.
As a front end product engineer, you will work with product engineers & designers to improve the overall user experience, performance, reliability and scalability of our systems. From handling millions of messages/ payments a minute to extract buyer intent and priority for processing these transactions to building tools to trace and visualize payments made across a business you'll be involved in projects that span all aspects of the business. Our goals includes scaling and architecting systems to support advanced product features that may not be currently viable because of hard technical considerations. You'll collaborate with our small, but effective, framework team with a track record of highly impactful work for Finly.
WITHIN 1 MONTH, YOU'LL
- Complete Finly's new-hire training week, and learn Accounts Payable Processes & the various partners we work with to make Finly happen.
- Investigate, solve and release a bug fix to production. In order to do this you will ramp up on Finly's engineering stack by pair-programming with your teammates and attending engineering training sessions designed and presented by the team.
- Meet with cross-functional peers around the company to learn how the product functions.
- Complete your engineering starter project and deploy your first changes to production.
WITHIN 3 MONTHs, YOU'LL
- Learn Finly's technical stack and apply development patterns through your work.
- Engage in your first on-call rotation in Support Engineering to help diagnose and resolve production problems and customer issues
- Individually contribute reliably ship full features to customers.
- Estimate technical scope and time to complete major features and initiatives.
WITHIN 6 MONTHS, YOU'LL
- Move to new product vertical & initiative and start designing scalable frontend systems.
- Have made a visible impact on the product for all the users of Finly.
- Work closely with your team to remove roadblocks, educate on best practices and improve how we work.
- Be comfortable navigating most of frontend stack and infrastructure
- Be responsible for the planning, scoping, design, and implementation of new features
- Participate in interviewing and hiring, as a way to influence team growth and how our values inform our culture
WITHIN 12 MONTHS, YOU'LL
- Individually contribute and lead teams to reliably ship full improvements to our frontend services
- Define tools and standards for product engineering to measure performance impact of releases
- Drive service reliability by developing tooling that enables metric visibility using SLIs, SLOs, and SLAs
- Developing Production Readiness standards to ensure service reliability
- Help grow other engineers technically by mentoring, pairing and developing other learning opportunities
- Collaborate with engineering and product leadership to define priorities and set delivery goals
Your understanding of front-end technologies, web application dev, system design, will be put to the test. You will take up a project for a team and then move to another project.
Join us & have the authority and responsibility to make things happen!
Role & Responsibilities
We are a workplace thriving on young energy, on mentorship, craziness, drive and commitment to making a difference. This is what we could open for you!
We are looking for an experienced and accomplished Frontend Developer (ReactJS). The role will suit a natural problem solver. The core role will be in a technical leadership capacity.
Primary 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 highly-responsive user interface components using React concepts.
- 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.
Ideal Candidate:
- In-depth knowledge of JavaScript, CSS, HTML and front-end languages.
- Must have minimum 1.5 years of experience in React JS.
- Knowledge in Web services, Web API, REST services, HTML, CSS3
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Excellent problem-solving ability and desire to learn new technologies and platforms.
- Experience with user interface design.
- Experience with browser-based debugging and performance testing software.
- Design, build, and maintain efficient, reusable, and reliable codes by setting expectations and features priorities throughout development life cycle
- Good teamwork.
- Excellent troubleshooting skills.
- Good project management skills.
- Flexible in his/her technical approach with a willingness to try new, creative technical solutions.
Working Mode: Only Office
Job Location : Bangalore
Interview Process
First Round – Telephonic Discussion
Second Round – Zoom Call









