Senior 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/

Company

Stackera is a leading Fintech Development Services company located in Pune. We are dedicated to delivering quality and innovative solutions to our clients with seamless service.

About the Role

We are looking for a Frontend Developer who is highly skilled in Next.js and modern JavaScript frameworks to join our frontend engineering team. This role is ideal for someone who is passionate about building user-friendly interfaces that are fast, responsive, and scalable.

You’ll be working on high-impact fintech products that require both technical excellence and creative thinking. Your work will directly influence user experience and engagement across a range of web applications, including financial dashboards, analytics platforms, and client portals.

What You’ll Do

• Design, develop, and maintain modern web applications using Next.js, React.js, and associated technologies.
• Collaborate with cross-functional teams including backend developers, UI/UX designers, and product owners.
• Translate UI/UX design wireframes into high-quality code with pixel-perfect accuracy.
• Build responsive, accessible, and cross-browser compatible components.
• Optimize application performance for speed, scalability, and usability.
• Integrate front-end logic with RESTful APIs and real-time systems (e.g., WebSockets).
• Write clean, reusable code and maintain clear documentation.
• Participate in sprint planning, daily stand-ups, and code reviews to ensure continuous improvement.
• Ensure security best practices in frontend implementation.

Required Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• 5+ years of hands-on experience in frontend development using Next.js and React.js.
• Proficient in Redux, Hooks, Context API, and component-based architecture.
• Solid understanding of HTML5, CSS3, JavaScript (ES6+), and responsive design principles.
• Experience building high-performance web applications with real-time data updates.
• Familiarity with frontend testing frameworks like Jest, Cypress, or similar.
• Ability to work in an agile environment with CI/CD processes.

Preferred (Good to Have)

• Exposure to Web3 technologies
• Experience with Ethereum, Solana, or other blockchain ecosystems.
• Understanding of containerized deployment using Docker.
• Familiarity with CI/CD tools like GitHub Actions, Jenkins, or GitLab CI.

What We Offer

• A collaborative and supportive team environment
• Exposure to cutting-edge projects in fintech and emerging tech
• Freedom to innovate and bring ideas to life
• Competitive compensation and performance-based growth
• Flexible work hours and focus on work-life balance

Role Description:

This is a full-time on-site role for an Angular Developer, located in Pune. The Angular Developer will be responsible for front-end web development, software development. The candidate should be proficient in Angular, .NET Core and JavaScript.

Education:

A bachelor's degree in Computer Science, Software Engineering, or a related field relevant certification is typically required. Candidates with equivalent 3-6 years’ experience will be consider.

Experience- 4 to 10 yrs

Location: Pune, India (WFO)

Immediate joiners are preferred (urgent requirement).

Technical Skills:

Proficiency in Angular, .NET, TypeScript and JavaScript is essential. Experience with modern JavaScript frameworks and libraries such as React, Angular, or Vue.js is often required.

Knowledge of server-side languages such as Angular, Node.js, Java (Spring), or PHP (Laravel) is important.

Familiarity with database systems such as MySQL, PostgreSQL.

Understanding of database design principles and SQL/NoSQL querying.

Proficiency with version control systems like Git is usually required.

Experience in designing and consuming RESTful APIs, as well as understanding of HTTP protocols.

Familiarity with development tools and platforms such as IDEs (Visual Studio Code, IntelliJ IDEA), package managers (npm, yarn), and build tools (Webpack, Grunt, Gulp).

Knowledge of testing frameworks and debugging techniques.

Understanding of containerization (Docker), deployment pipelines, and

continuous integration/continuous deployment (CI/CD) practices (Deployment and DevOps).

Experience:

Demonstrated experience in both frontend and backend development, with the ability to work on the entire stack.

Previous experience in developing web applications, from conceptualization to deployment.

Ability to solve complex technical problems and debug issues efficiently.

Experience working in collaborative environments, including Agile methodologies and version control systems.

Experience in IT Healthcare will be prefer.

Soft Skills:

Strong verbal and written communication skills are essential for collaborating with team members and conveying

technical concepts to non-technical stakeholders.

Ability to adapt to new technologies, frameworks, and project requirements.

Team Player Willingness to work in a team environment, share knowledge,

and mentor junior developers.

Thoroughness in code reviews, testing, and documentation.

Desired Experience

3+ years

Job Description

What You’ll Do

• Taking an active role in architecting the solutions we build
• Designing and implementing web applications using JavaScript and its frameworks (i.a. React, Vue, Angular), HTML5 and CSS3
• Working closely with the dispersed development team, client, and project manager in SCRUM methodology
• Ensuring that programming practices and code quality are respected
• Supporting other engineers with your expertise when needed (knowledge sharing)
• Leading your colleagues’ growth and development

What you bring to the table

• 3+ years of Experience with React. Good to have a working knowledge of React Native, Angular, VueJS
• Strong expertise with HTML, CSS, and writing cross-browser-compatible code.
• Good understanding of AJAX and JavaScript DOM manipulation Techniques
• Experience with RESTful services
• Experience in JavaScript build tools like grunt or gulp
• Hands-on and implements complex React modules
• Able to implement automated testing platforms and unit tests
• Understanding of fundamental design principles behind a scalable application
• Proficient understanding of code versioning tools (Git)
• Critical thinker and problem-solving skills

Bonus if you have…

• Experience with Angular2+ and Node
• Experience with AWS or GCP infrastructure
• Curiosity about new languages, libraries, frameworks
• Contributions to open-source projects
• Experience with Selenium, or Jest or similar front end test frameworks

We are looking for a Senior Front End Engineer.

• Hands-on with contemporary javascript frameworks (React js Angular js)
• Hands-on with UI layouts, SASS, LESS, Bootstrap
• Developed reusable components and libraries for frontend
• Frontend optimization techniques to reduce latencies
• Frontend optimization for SEO
• Excellent written and verbal communication skills, design thinking
• Practical experience with engineering best practices and Technology

Key Responsibilities:

• Build desktop and mobile web applications using contemporary javascript frameworks

•Actively participate in design and code reviews to build robust
applications and prototypes

•Explore and design simple and intuitive consumer experiences

•Work closely with Product managers, UX designers and back end
engineers to implement frontend solutions

•Build reusable code and libraries for future use, focus on long-term code
maintainability

•Work in a fast-paced and agile development environment

• Experience with Web Components and Custom Elements
• Understanding of data visualization concepts and technologies (SVG, D3.js)
• Familiarity with JavaScript build tools such as Webpack.
• Git Source Control
• Unit and E2E Testing - Cypress.io / Chai / Karma / Jasmine / etc.
• Experience building responsive interfaces.
• Good sense for building visually appealing products.
• Some Node experience
• Experience using RESTful Web Service Architecture
• Experience working in Agile Environments
• To be considered for this role, you must have:
• A deep understanding of building complex, single-page JavaScript apps using frameworks such as Angular, React, or Vue
• Fluency with JavaScript, TypeScript, CSS and SASS

• In this Senior Front End Engineer position, you will:
• Inherit a well-architected, clean and robust codebase built with TypeScript, Angular, and SCSS/SASS with a modern interface
• Work with our design team and other engineers to make sure our application is performant and intuitive to use
• Evaluate and implement new libraries and components
• Ensure best practices are followed in the design and development of the application
• Contribute to and help manage our open source libraries

• You will be working together with fellow junior and senior Frontend developers, helping to improve the group's skill level and exchanging new ideas.
• On a daily basis, you write JavaScript/Typescript/ES6/Angular/React and HTML5, CSS3 (SASS/LESS/Stylus)
• Closely collaborate with designers and the rest of the technical team (Backend, DevOps, QA) to make sure we’re all aligned.
• You will manage projects with open-source JavaScript and TypeScript libraries and frameworks (we're big on React and Angular), and explore new technologies (GraphQL, AppSync, Apollo).
• Code reviews are, of course, a part of your responsibilities as well as providing high-quality work.
  
  

What it takes to excel in this role

• Strong core JavaScript and TypeScript
• Minimum 4 years experience in front end development
• 5+ years of JavaScript development experience
• Minimum of 2 years of experience with either, Angular 5+ or React
• Experience with Webpack/Grunt/Gulp or other automated build tools
• Experience with Jasmine/Jest or other JavaScript testing frameworks and tools
• Strong Experience with HTML, CSS, SASS/LESS/Stylus
• Experience with JSON, REST, Web Services
• Experience with working in an Agile environment
• Good communication(in English) and consultancy skills
• Affinity for working in a flexible, diverse and fast growing environment
• Proactive mindset focused on teamwork and continuous improvement - we want to grow together with you
  
  

• Experience with AWS
• Experience with React Native
• Experience with GraphQL, PWA, NodeJS

https://polyglots.io">Polyglots is a young and innovative software development agency located in Pune, India. Our expertise is to build highly scalable applications and infrastructure solutions for our partners and budding startups.

We provide end-to-end solutions ranging from cloud architecture to backend services and modern frontend development. We leverage agile methodologies, software life cycle best practices and cutting edge technology to deliver perfect solutions reflecting our passion for software development.

We care about our company culture and invest in people to create the best teams of highly skilled developers. 

We are looking for a Front-End Web Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the UI/UX designer and bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works.

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Design mobile-based features
• Collaborate with other team members and stakeholders
• Stay up-to-date on emerging technologies
  
  

• 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. Familiarity with ES6 or Typescript would be a plus.

• Good understanding of Angular or React.
• Good understanding of asynchronous request handling, partial page updates, AJAX and Rest APIs.
• 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.
• Working knowledge of server side technologies is a plus