React.js Developer

About Shopflo

At Shopflo, we're trying to change the way consumers experience brands and businesses. Our first product was a cart and checkout platform for e-commerce, that allowed marketers to personalise discounts, rewards, and payments. We are currently also working on a new product that takes it a notch higher by unlocking enterprise-grade personalization for all consumer tech businesses.

Team & Company

Shopflo was founded by three co-founders:

• Ankit Bansal (ex-IIT Kharagpur, Oracle, Gupshup)
• Ishan Rakshit (ex-IIT Bombay, Parthenon, Elevation Capital)
• Priy Ranjan (ex-IIT Madras, McKinsey, Elevation Capital)

We’re a fast-growing team of ~50 people, based in HSR Layout, Bengaluru. We raised a $3.8M seed round from Tiger Global, TQ Ventures.

What you will do:

• Own and build next generation web applications which are efficient, reusable front-end abstractions and systems
• Developing highly responsive user interface components using react concepts
• As part of an innovative, fast-paced team, you will actively participate in design and code reviews to build robust applications and prototypes
• Ensure that all the assigned systems are performing to scale
• Work closely with co-founders, product managers, and backend engineers to decompose UI/UX flow into actionable tasks and ensure timely features delivery

You should apply if you have:

• 1- 2.5 years of work experience working as a ReactJS developer
• In-depth knowledge of JavaScript, CSS, HTML, and knowledge in any one of the react based frameworks like Next, Gatsby is a plus
• Understanding of browser internals and the network stack
• Basic awareness of application security practices and deployment techniques for frontend projects
• Basic knowledge of testing frameworks including Mocha and Jest is a plus
• Fluency in using Git and GitHub
• Ability to write concise and structured code

Good to haves:

• Experience with React Native
• UI/UX design sense
• CSS frameworks like Tailwind, Bulma, and CSS Preprocessors
• Understanding of SSR, SSG, CSR

About One Impression

One Impression is one of the world’s largest influencer marketing platforms, working with 300+ global brands like Unilever, Nestle, and Amazon to connect with a diverse creator network. Our platform empowers brands and creators to collaborate seamlessly and scale their reach. To capture a significant share of global media ad spend, One Impression is quickly becoming the industry’s go-to influencer marketing platform.

About the Role

We are looking for a Frontend Engineer (SDE II) who is experienced in both React.js for Web and React Native for Mobile Apps. You will be responsible for architecting, implementing, and optimizing web and mobile applications while collaborating closely with Product, Design, and Backend teams.

This role is perfect for someone who enjoys working across platforms, building scalable systems, and enhancing the developer experience.

Key Responsibilities

• Architect and develop frontend solutions for both Web (React.js) and Mobile Apps (React Native).
• Build and optimize config-driven systems, reusable components, and common libraries.
• Work closely with Product Managers, Designers, and Backend Engineers to create seamless user experiences across platforms.
• Own and drive React Native-based mobile applications, ensuring modular, scalable, and performant code.
• Optimize web and mobile performance for speed, responsiveness, and efficiency.
• Set up and manage CI/CD pipelines for both web (Docker, Vercel) and mobile apps (Fastlane, App Store/Play Store).
• Implement and maintain state management using Redux, Redux Saga, Recoil, or MobX.
• Work with mobile-specific integrations, such as Firebase Push Notifications, Deep Linking, and Native Modules.
• Ensure cross-platform consistency by handling browser compatibility (web) and device compatibility (mobile).
• Write clean, maintainable, and reusable code, following best practices and design patterns.
• Debug and fix issues rapidly, ensuring a seamless Web & Mobile experience.
• Stay up-to-date with the latest trends and contribute to open-source projects, tech talks, and internal knowledge sharing.

Requirements

• 3-5 years of experience in frontend development, working with both React.js (Web) and React Native (Mobile).
• Strong expertise in JavaScript (ES6+), React.js, and React Native.
• Experience with bundlers like Webpack, Rollup, and Metro for React Native.
• Deep understanding of mobile CI/CD (Fastlane, App Store, Play Store) and web CI/CD (Docker, Vercel, Jenkins, GitHub Actions).
• Strong grasp of Web & Mobile performance optimization techniques.
• Experience with Redux, Redux Saga, MobX, or Recoil for state management.
• Good understanding of mobile UI/UX principles, animations (Reanimated, Gesture Handler), and responsive design.
• Basic familiarity with native iOS/Android development (Swift/Kotlin is a plus).
• Experience with Unit Testing (Jest, React Native Testing Library, Detox, Cypress, Appium, or Espresso).
• Strong debugging skills using Chrome DevTools (Web) and Flipper, Xcode, Android Studio (Mobile).
• Ability to work independently, take ownership of projects, and mentor junior engineers.
• Open to feedback and collaborative in working towards the best user experience.

Why Join One Impression?

- Be a part of one of the largest influencer marketing platforms globally, working with top brands and influencers.

- Opportunity to lead and shape a fast-growing marketplace product.

- Competitive salary and benefits package.

- A collaborative and innovative work culture in a rapidly scaling company.

• Developing user interface components and implementing them following well known Reactjs workflows such as Flux and Redux
• Translating designs and wireframes into high quality components.
• Should strong Component based programming and Concepts like Life Cycle Hooks and Communications.
• Ensuring that all components and the overall application are robust and easy to maintain
• Coordinate with the rest of the team working on different layers of the infrastructure
• Should have capabilities to judge or choosing the right/suitable plugin for application requirements
• Should have knowledge of application build generation and optimizations.

Technical Experience:

• Should be strong in Development Life Cycles like Agile
• Should be strong Javascript Core (Core Concepts, Design Patterns, etc)
• Should be strong in Angular and ReactJS Concepts
• Strong proficiency in JavaScript including DOM manipulation and the JavaScript object model Thorough understanding of Reactjs and its core principles
• Should be strong at least one javascript testing framework like Jasmine

,Enzyme

Required Skills:

• Bachelors/Masters in Computer Science with relevant industry experience
• At Least 7 years of Front end frameworks with at least 4 years on React
• Must be working on ReactJS project as on date.
• Experience in developing responsive Web Application Development
• Experience building reusable UI elements including trading grids, dialogs, and screen navigation widgets
• Expert level Programming experience in HTML 5, CSS 3, JavaScript, Typescript, Angular and React JS
• Experience with AWS, developing and deploying application to cloud environment
• Experience in using the popular UI Frameworks, Libraries or Plugins
• Experience in Writing Test Cases and Generating Test & Coverage reports
• Experience with Git, Java, Maven, SQL, Jira and or Hudson/Jenkins

React Developer at BeyondScale

BeyondScale is a technology company on a mission to democratise AI for small and medium-sized businesses (SMBs). We're building Sitara, an AI-powered ERP suite that simplifies core business processes for the service sector. Imagine a suite of intuitive micro-apps - a pocket CRM, a streamlined POS system, and essential tools - all powered by intelligent automation and a user interface (UI) that fades into the background.

The Opportunity:

We're seeking a talented React Developer to join our growing team and play a crucial role in building the future of AI-powered ERP. You'll be responsible for crafting beautiful, user-friendly interfaces that bring Sitara's intuitive design to life.

What You'll Do:

• Develop and maintain highly interactive and responsive user interfaces (UIs) using ReactJS and its ecosystem.
• Collaborate with designers and engineers to translate UI mockups into clean, maintainable React code.
• Implement state management solutions, component-based design patterns, and utilise hooks effectively.
• Translate UI designs into pixel-perfect CSS, ensuring a seamless user experience across devices.
• Write clean, well-documented code that prioritises maintainability and future growth.
• Actively participate in testing, debugging, and problem-solving to ensure a flawless user experience.
• Utilise Git version control and adhere to modern development workflows for seamless collaboration.
• Prior experience with React Native is a plus.

You're a Great Fit If You:

• Have 1+ years of experience building web applications with ReactJS.
• Possess a strong understanding of core computer science principles like data structures and algorithms.
• Are passionate about creating user-centric interfaces and delivering exceptional UX.
• Thrive in a collaborative environment and enjoy working closely with designers and engineers.
• Have excellent communication and problem-solving skills.
• Are a coding craftsman who prioritises clean, maintainable code.

Why BeyondScale?

• Impact: Be a part of a revolutionary product that empowers service-based businesses to thrive.
• Innovation: Work at the forefront of AI and help shape the future of ERP software.
• Autonomy & Growth: Take ownership of your work, gain access to production systems, and grow alongside the company.
• Ground Floor Opportunity: Join a high-potential startup on the cusp of explosive growth.

We are seeking a Frontend Engineer who can expand our product portfolio and make life easier for locals and local businesses. As part of this role, you will build experiences that help users engage and feel comfortable with the products and services we offer.

We need you to understand Angular, Vanilla JS, HTML and (S)CSS.
We need you to understand the philosophy of writing clean and modular code.
We need you to take your own stand and do what's right to find a solution.
"I'd rather listen to a possible solution rather than a 'don\'t know'" would be plausible to you.

Technologies mentioned above is what you can relate to while applying but that's just the tip of the iceberg.

If you get a score of 10 below,
We need you

You need at least 5 points to proceed to next round.

Answer the following questions by attaching a document link with the note:

1. Why choose ngRx over shared angular services? 1 point

2. How are fork join and merge map different? 1 point

3. How do we wrap html elements in our custom component? 2 points
   Ex:

This is not a paragraph element

1. How will you handle an error produced by RxJS operator's inner observables without failing any other observables that are yet to emit values to its subscriber, so that all the inner observables including errored ones can be piped to another RxJS operator such as fork join, concatMap etc to be handled smoothly for further operations?

Easiest thing would be to generate a pseudo code.

With above question solve this problem:

[Observables....] -> Emit values simultaneously from the array of observables at once (perform a task when an observable finishes) -> toArray -> [emitted values...] -> process each emitted value one by one -> toArray

This will give you 4 points

1. How does javascript achieve its asynchronous nature being single threaded? 2 points

• Work closely with Project Managers and other members of the Development Team to both develop detailed specification documents with clear project deliverables and timelines, and to ensure timely completion of deliverables.
• Attend client meetings during the sales process and during development.
• Work with clients and Project Managers to build and refine graphic designs for websites.
• Convert raw images and layouts from a graphic designer into CSS/XHTML themes.
• Determine appropriate architecture, and other technical solutions, and make relevant recommendations to clients.
• Communicate to the Project Manager with efficiency and accuracy any progress and/or delays.
• Engage in outside-the-box thinking to provide high value-of-service to clients. Alert colleagues to emerging technologies or applications and the opportunities to integrate them into operations and activities.
• Be actively involved in and contribute regularly to the development community of the CMS of your choice. Develop innovative, reusable Web-based tools for activism and community building.

• Our engineers are involved in all parts of the product lifecycle: brainstorming, design,prototyping, planning, execution, and deploying.
• We brainstorm to understand and explore the difficult problem and come up with the best solution for the hardest problems that impact the world.
• You will develop broad-ranging skills working on a wide variety of initiatives. You will take responsibility for your projects, but you'll also have teammates who look out for you.
• We operate in a “get s**t done” environment where the goal is always to execute and implement. While doing all of this...You will not forget to have fun!

WHAT WE VALUE

• You're cool with working with others. Our jobs aren’t done in a vacuum and everyone contributes to get the job done.
• You’re not afraid to make mistakes because without challenge, you’re not learning.
• Speaking of learning, you have a constant desire to grow and develop.
• You care about great design, not only in the product and visual sense, but also in your code and technical architecture.
• You are passionate about product craftsmanship, and can balance that with deploying something relevant.
• You move fast with a sense of urgency. You want to work on things that make an impact on the world.

DESIRED EXPERIENCE

• Candidate Expectations: Design, code, deploy and maintain scalable software infrastructure to meet Blowhorn's demands.
• 3+ years’ experience in a start-up environment or any reputed product based company
• Build APIs for business clients to integrate blowhorn into their systems.
• Setup processes and methodology for sustainable software development.

DESIRED SKILLS

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Good understanding of JS frameworks (AngularJS, ReactJS, VueJS), Angular 5+ and Bootstrap.
• Proficient understanding of web markup, including HTML5, CSS3
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
• Some exposure to Analytics/Dashboard and related client frameworks (D3.js, Apache superset)
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Has worked extensively on Google maps and features like live tracking, geo fencing
• Good API integration skills (with backend frameworks)
• Mobile frameworks like Flutter is a plus
• Collaborate with other team members and stakeholders
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Gimp or Photoshop is a plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Proficient understanding of code versioning tools, such as (Git / Mercurial / SVN)
• Good understanding of SEO principles and ensuring that application will adhere to them.

- Hands-on experience in developing User Interfaces (more than 4 years) using Angular 4+.

- Hands-on experience of using reactive frameworks like Redux, NgRX.

- Strong understanding of using UI testing frameworks like Jasmine, Mocha.

- Focus on building reusable components by employing Design patterns.

- Ability to remote diagnose user issues (With or without tools).

- Strong understanding of Object-oriented concepts.

- Ability to suggest alternative solutions for micro-level problems considering the environment constraints.

- Ability to diagnose development issues independently.

- Self-motivated learner.