React.js Developer

About the Role

Have you ever wanted to shape not just features, but frontend architecture and engineering culture across multiple products? As a Staff Frontend Engineer, you will play a critical role in defining UI architecture, setting engineering standards, and mentoring senior engineers while still being hands-on with complex frontend systems.

You will work closely with Product, Design, Backend, and DevOps teams to build scalable, high-performance SaaS products from the ground up—often version 1—across CAW’s growing product portfolio.

This role is ideal for engineers who combine deep React expertise, systems thinking, and technical leadership.

📍 Location: Hyderabad (Office) or Remote

What Will You Do?

Technical & Architecture Ownership

• Own frontend architecture and design decisions across one or more products.
• Define and evolve scalable UI patterns, component libraries, and frontend frameworks.
• Lead initiatives for performance optimization, accessibility, and cross-browser consistency.
• Drive adoption of best practices in TypeScript, state management, testing, and observability.
• Partner with backend teams on API contracts, data flow, and system boundaries.

Product & Execution

• Translate ambiguous product requirements into robust technical solutions.
• Build pixel-perfect, buttery-smooth user interfaces for complex workflows.
• Ensure frontend systems are reliable, testable, and production-ready.
• Diagnose and resolve hard performance, scalability, and reliability issues.
• Take end-to-end ownership of critical frontend modules.

Leadership & Mentorship

• Mentor Senior and Mid-level Frontend Engineers.
• Conduct design reviews, code reviews, and technical deep dives.
• Set quality benchmarks for frontend engineering across teams.
• Influence roadmap discussions with a strong engineering perspective.
• Be a role model for ownership, execution discipline, and technical excellence.

Experience Required

• 5-8 years of overall frontend engineering experience.
• 5+ years of deep React.js experience, building and scaling production SaaS products.
• Proven experience owning frontend systems at product or platform level.
• Experience working in fast-paced, product-driven environments.

Technical Skillset

Must Have

• Expert-level knowledge of JavaScript and TypeScript.
• Deep expertise in React.js, including Hooks and modern patterns.
• Strong experience with state management (Redux, Context, or equivalent).
• Advanced proficiency in HTML, CSS, responsive design, and browser internals.
• Hands-on experience with performance profiling and optimization.
• Experience with frontend testing strategies (unit, integration, E2E).
• Strong understanding of web storage, caching, and browser lifecycle.
• Experience with logging and monitoring tools (e.g., Sentry).
• Experience with analytics frameworks (Mixpanel, WebEngage, or similar).

Good to Have

• Experience designing or maintaining design systems / component libraries.
• Familiarity with backend technologies and API design.
• Exposure to micro-frontend or large-scale frontend architectures.
• Knowledge of CI/CD pipelines and frontend DevOps practices.

Functional & Behavioral Skills

• Strong written and verbal English communication skills.
• Comfortable working with distributed global teams (Slack, Zoom, Google Meet).
• Ability to drive clarity in ambiguous problem spaces.
• Strong bias for action, ownership, and delivery.
• Data-driven mindset with focus on productivity and quality metrics.

About CAW Studios

CAW Studios is a Product Engineering Company of 70+ engineers building and scaling SaaS products end-to-end.

Products we’ve built and run:

• Interakt
• CashFlo
• KaiPulse
• FastBar

We also power engineering for:

• Haptik
• EmailAnalytics
• GrowthZone
• Reliance General Insurance
• KWE Logistics

We are obsessed with automation, DevOps, OOPS, and SOLID principles. We don’t believe in rigid tech stacks—we believe in solving real problems well.

🌐 Website: https://www.caw.tech || https://www.knacklabs.ai/

Job Title: Senior React.js Developer

Experience: 5+ Years

Location: Pune

Employment Type: Full-Time

Job Summary:

We are looking for a skilled React.js Developer with 5+ years of experience to join our team. You’ll build scalable, high-performance web and mobile applications, work closely with designers and backend developers, and ensure responsive and user-friendly UI/UX across platforms.

Key Responsibilities:

• Develop dynamic, reusable components using React.js, JavaScript, HTML5, and CSS3
• Integrate wireframes and UI/UX designs into functional front-end interfaces
• Ensure cross-browser/platform compatibility and responsive design
• Optimize apps for speed and scalability
• Implement and maintain unit and E2E tests (Jest, Playwright, Puppeteer)
• Integrate with RESTful APIs and backend services
• Maintain code quality and performance standards
• Collaborate with designers, product managers, and backend engineers
• Mentor junior developers and contribute to best practices

Required Skills:

• 5+ years in front-end/UI development
• Strong in React.js, JavaScript (ES6+), HTML5, CSS3
• Experience with Redux, SASS/LESS, REST APIs
• Familiarity with performance optimization tools
• Solid understanding of UI/UX design principles
• Excellent communication and team collaboration skills
• Bachelor’s degree in Computer Science or related field

1. Qualifications: Bachelor’s Degree in Computer Science, Information Technology, or a related field 

2. Certifications: NA 

3. The Experience That Sets You Apart: 

● 3+ years of hands-on experience building responsive web apps using React 

● Deep understanding of React hooks, component architecture, and state management .

●Experience with Shopify Liquid, themes, and Shopify APIs.

● Experience in building responsive websites and applications that work across various devices and screen sizes 

● Strong skills in JavaScript (ES6+), HTML5, and CSS3 

● Proven ability to own features end-to-end — from design handoff to production 

● Experience integrating with REST APIs and optimizing performance 

● Familiar with Git, code reviews, and CI/CD workflows 

● Exposure to testing frameworks like Jest or React Testing Library 

● Comfortable mentoring juniors and collaborating in cross-functional teams 

4. Your Subject Matter Expertise: 

● SaaS experience of 2 years with total development experience of 3 years 

● Must have worked in a smaller company of less than 100 

● Should have built solutions/softwares end to end and not just as a part of bigger team 

● Should see themselves going deeper into the same role even 5 years down the line 

● Strong proficiency in JavaScript, TypeScript, and ES6+ features. 

● Solid understanding of Redux, React Hooks, and component lifecycle. 

● Experience in developing responsive designs using HTML5, CSS3, and modern CSS frameworks (e.g., Tailwind CSS). 

● Familiarity with frontend build tools and module bundlers such as Webpack, Babel, and npm/yarn. 

● Strong debugging and problem-solving skills.Proficiency with version control systems like Git. 

● Understanding of performance optimization techniques, including lazy loading, code splitting, and caching.Experience with server-side rendering (SSR) and Next.js. 

● Knowledge of mobile-first and progressive web app (PWA) development. 

● Familiarity with design tools like Figma or Sketch for collaboration. 

● Exposure to e-commerce platforms like Shopify, BigCommerce, or Magento. 

● Understanding of backend technologies and REST/GraphQL APIs for better integration.

About Rocketlane

Rockeltane is a fast-growing SaaS startup in the customer onboarding category and has raised $21M in capital (https://twitter.com/RocketlaneHQ/status/1483821563195850753">we rapped about it!) from global VCs such as 8VC, Nexus Venture Partners, Matrix Partners India, and super angels like Gokul Rajaram and Girish Mathrubootham.

Thanks to the rapid early traction and customer love the product has garnered globally from the likes of LinkSquares, AppCues, ContractPodAI, Chargebee, parcelLab, etc., we have been recognized as a Leader in the Client Onboarding category on G2 within six months of product launch.

With a mission to deliver chaos-free, consistent, accelerated, and delightful customer journeys through its purpose-built software the company was founded in April 2020 by second-time entrepreneur trio - Srikrishnan, Vignesh, and Deepak. Previously, the trio built a successful in-app messaging startup that was acquired by Freshworks (NASDAQ: FRSH) in 2015.

Rocketlane became the https://www.producthunt.com/posts/rocketlane"> #1 Product of the Day on Product Hunt on the day we launched it. We are now building a global and diverse workplace that will empower passionate problem-solvers to innovate, collaborate, do their best work, and see the next phase of hyper-growth together! 

What’s the opportunity?

Are you a front-end developer looking to fast-track your learning and growth? Have you looked at world class products like Asana, Notion, or Airtable, and felt “I wish I were part of the early team that built these products”?

At Rocketlane, we’re a team that has previously built and rolled out globally successful SaaS products used by tens of thousands of customers. We’re laser focused on delivering a world class new product again, and looking for an ambitious front-end engineer to join our existing team of 9 engineers.

If it excites you to think of a fast paced start-up environment, building something big from scratch, breaking down new problems, creating well structured UI components, executing on pixel perfect design, paying great attention to every little interaction detail, and doing demos of your work every Friday with a happy and passionate team, then this is the right opportunity for you.

Some of the tech problems you get to work-on as a front-end developer would include building real-time collaboration experiences across our product, building live document editing and modern spreadsheet experiences from scratch, creating flexible new Kanban-style views of work tasks, and crafting cool new UI components and interactions that we will use across our product.

About you:

• Knowledge in the following areas
• React
• SPA Framework patterns
• Hands-on experience in HTML, CSS, SASS & Object Oriented Javascript
• Worked with features provided by browsers (Caching / Storage / Compatibility etc )
  
  

Nice to have:

• Familiarity with AWS
• Experience with startups or early stage teams
• Knowledge of module bundlers like Webpack 

What’s in it for me?

• Great opportunity: Rocketlane genuinely cares about everyone we hire. You’ll learn new things and grow no matter how experienced you are; you will be working with founders who have more than three decades of collective experience in building significant B2B SaaS startups. 
• Great team: Work with a world-class, high-velocity team that truly embodies the values of empathy, curiosity, and customer-centricity. Check out thehttps://www.linkedin.com/feed/hashtag/?keywords=rocketlane_meet_the_team"> MTT(Meet The Team) videos on our LinkedIn. 
• Great culture: An open, fun, and exciting startup culture that empowers its people to champion big problems with the freedom to think and innovate.
• Growth:  You could easily and quickly transition into other roles you might like.
• Impact: You get to be part of a global, passionate team in a fast-paced and growth-oriented environment. The team has a work philosophy of being high on ambition, ownership, and a bias for action.
• Monetary rewards and benefits: Competitive salary, flexible leave policy, and more! 

About Klenty:

Klenty is a Software Product company operating in the Sales Engagement category. We

are one of the fastest growing SAAS startups in the sales engagement space, headquartered in

California and operating from Chennai, India. Klenty’s Sales Engagement Product helps

thousands of sales teams automate all the repetitive activities involved in the sales process like

sending emails, follow-ups, tracking engagement metrics, etc - so that the sales team can focus

more on activities like building relationships and closing deals. With over 3000 customers all

over the world, we are on a mission to transform every B2B Sales team into an unstoppable

force. Join us in building the future of sales engagement software.

JD :

Responsibilities:

• Developing new user-facing features using ReactJS.
• Building reusable components and front-end libraries for future use
• Translating designs and wire-frames into high quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers
• 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.
• Writing application interface codes using JavaScript following ReactJS workflows.
• 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.

Responsibilities:

• Developing new user-facing features using JavaScript framework React JS.
• Building reusable components and front-end libraries for future use.
• Translating designs and wireframes into high-quality code which works across platforms.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
• Should be able to take initiatives and ownership and build the products from scratch.
• Maintain code and write automated tests to ensure the product is of the highest quality.

Requirements:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Thorough understanding of React.js, JavaScript, HTML, CSS 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 functional and object-oriented programming.
• 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.

Seeking a senior, dynamic, highly motivated full stack developer interested in working for a very early stage bootstrap startup. We have a Beta/MVP live, but need to get bug free and fast ASAP. The position has pay commensurate with local salaries in low-cost countries but will earn equity equivalent to their salary which could be worth up to more than that when the company is successful. I can show you our assumptions and estimates once you sign an NDA).

About Us
We are a company dedicated to helping people find the food they love, no matter what food interests or dietary preferences they may have. You’ll be joining in the very early stages of the company, and have the chance to influence the direction of the company with your ideas and contributions.

Our Tech Stack (Front End):

• JQuery
• Bootstrap
• EJS templates
• HTML/CSS All new modules
• js with a team-maintained and crowd-sourced component library Middleware/Back end.
• Express
• js
• MongoDB
• MySQL
• API layer
• Elastic Search

Desired attributes:

• Enjoys iterative/agile development – We will iterate based on internal and customer feedback until we make an awesome product! We also have a very deep and compelling product roadmap we make consistent progress against.
• Works well collaboratively with other developers, contributing to the codebase, performing code reviews, and mentoring a team of junior developers. We have a lot of junior developers learning to code that need mentorship/leadership.
• A passion for food would be great, our business is to help pair people up with amazingly good food.
• Results-oriented

Responsibilities:

• Ability to build on and maintain a fully functional responsive web application
• Experience building API-driven applications

Qualifications:

• CS Degree is great but development skills are more important than degrees
• Ability to build and maintain a fully responsive website
• Prefer proficiency in our tech stack, but willing to teach people who are highly motivated and can spend significant time on the project for equity.
• GitHub or similar source code management system experience
• Nice to have: Experience developing customer-facing web applications

Toplyne is a global SaaS product built to help revenue teams, at businesses with a self-service motion, and a large user-base, identify which users to spend time on, when and for what outcome. Think self-service or freemium-led companies like Figma, Notion, Freshworks, and Slack. We do this by helping companies recognize signals across their - product engagement, sales, billing, and marketing data.

Founded in June 2021, Toplyne is backed by marquee investors and angels (we'll be happy to tell you how much we've raised, and from whom on call). We are building out our founding team as we speak and we'd love to chat with you!

You taking a lot of pride in writing scalable, readable & maintainable code. You have a product bent of mind. You like working in a fast paced environment and ship code most days of the week. You enjoy working cross functionally in a collaborative environment with designers, PM's to build the best product possible. You don't mind getting on customer calls to understand their perspective to build a better product or help them with issues they might be facing.

You're hungry, ready to hustle, and keen to learn!

As a founding member of the core engineering team, you will:

• Work with the founders in co-creating the product with early believers (read: customers)
• Develop massive, complex software systems that scale globally.
• Build and own a substantial part of the product and help build the culture of engineering within Toplyne

• Strong first principles
• Hustle! We're young, lean, and in our early days. You'd have to set up your own shop, work with design customers to find generalisable use cases, and build them out.
• Ability to collaborate with cross-functional teams to build and ship new features
• 2-6 years of experience
• Good understanding and experience working with javascript frameworks such as React.
• Work closely with developers and UX designers to ensure that the presentation layer is implemented in accordance with best above best practices and UX specifications.

• Not looking for a 10x engineer. We are ok if you are 1x but are really good at what you, a good human being & work well in a team.