FrontEnd Developer

Position Title : Frontend / Chrome Extension Developer (React + TypeScript)

Experience : 3+ years

Location : Remote

Job Role Summary :

Build and ship production-ready Chrome extensions that inject UI into existing web apps. Own content scripts, DOM integration, performance, and accessibility (WCAG 2.1 AA).

Mandatory Skills :

React, TypeScript, Chrome Extensions (MV3), Content Scripts, DOM Injection, MutationObserver, TailwindCSS/CSS Modules, Accessibility (WCAG 2.1 AA).

Key Responsibilities :

• Develop Chrome extensions using React + TypeScript.
• Inject and manage UI components within third-party web app DOMs.
• Write and maintain content scripts; handle dynamic pages via MutationObserver.
• Implement clean, responsive styling with TailwindCSS or CSS Modules.
• Ensure accessibility (WCAG 2.1 AA), keyboard navigation, and ARIA semantics.
• Integrate with APIs, manage extension permissions, storage, and messaging.
• Optimize performance, handle edge cases across sites, and write basic tests.

Required Skills :

• Strong React + TypeScript in production.
• Chrome Extension architecture: manifest v3, content/background scripts, messaging, permissions.
• DOM manipulation and safe UI injection strategies.
• MutationObserver, event delegation, handling SPA route changes.
• TailwindCSS or CSS Modules; solid CSS fundamentals.
• Accessibility (WCAG 2.1 AA) and cross-browser compatibility (Chromium/Firefox optional).
• Familiarity with build tooling (Vite/Webpack), linting, and Git.

Nice-to-Have :

• Experience with service workers, storage (sync/local), and i18n.
• Testing with Jest/RTL/Playwright.
• Security basics for extensions (CSP, sandboxing).

Senior React Developer – Trading & Fintech (Broker-Focused Solutions)

About Us:

At Tradelab Technologies Pvt Ltd, we don’t just build web applications, we create high-performance trading platforms tailored for brokers and financial institutions. Our platforms power real-time market analysis, ultra-low-latency trade execution, and seamless broker-client interactions.

What We Expect:

• 2+ years of front-end development experience, with 2+ years specializing in React.js.
• Deep expertise in React, Next.js, TypeScript, and state management libraries (Redux, Recoil, Zustand, etc.).
• Proven experience in building and optimizing ultra-responsive, high-performance trading platforms for brokers.
• Strong understanding of financial data visualization, real-time charting, order book mechanics, and trade execution workflows.
• Hands-on experience with real-time data streaming, WebSockets, FIX protocol, and API integrations for brokerage services.
• In-depth knowledge of performance optimization, server-side rendering, and rendering strategies for trading dashboards.
• Security-conscious mindset—you know how to build secure, compliant fintech applications that handle sensitive brokerage and trading data.
• A problem-solving mentality that thrives under pressure—brokers depend on our platforms for seamless trade execution, and we deliver nothing less than perfection.

What You Will Do:

• Lead the front-end development of trading applications designed specifically for brokers and financial institutions.
• Architect and optimize blazing-fast, low-latency web applications that ensure brokers can execute trades with unmatched speed and accuracy.
• Design and implement high-performance data visualization components—live stock charts, trade analytics, real-time market depth, and complex order books.
• Work closely with brokers, backend engineers, and UX designers to craft seamless, intuitive, and highly secure trading solutions.
• Solve hard problems at scale—whether it’s optimizing execution speeds, handling high-frequency WebSocket updates, or ensuring zero downtime during peak trading hours.
• Innovate and experiment with cutting-edge front-end technologies to push the boundaries of brokerage solutions.
• Own your work end-to-end—from concept to deployment, ensuring traders and brokers get a flawless user experience.

Must-Have Skills:

• Proven expertise in Front-end development with React.Js
• Deep expertise in React, Next.js, TypeScript, and state management libraries (Redux, Recoil, Zustand, etc.).
• Proven experience in building and optimizing ultra-responsive, high-performance trading platforms for brokers.
• Strong understanding of financial data visualization, real-time charting, order book mechanics, and trade execution workflows.
• Hands-on experience with real-time data streaming, WebSockets, FIX protocol, and API integrations for brokerage services.

Nice-to-Have Skills:

• Experience working on brokerage trading platforms, order management systems (OMS), or risk management tools.
• Contributions to open-source React trading libraries or a portfolio of real-time financial applications.
• Knowledge of regulatory compliance, order execution policies, and broker risk management tools.
• A track record of leading front-end teams, mentoring developers, and driving architectural decisions.

Why Join Us?

• Work with elite engineers and brokerage professionals in the fast-moving world of trading technology.
• Build platforms that brokers, traders, and financial institutions depend on daily.
• A culture that values bold innovation, real-time execution, and pushing the limits of brokerage tech.
• Expect challenges, high expectations, and a relentless pursuit of performance and precision.
• Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of trading web applications for brokers.

If you’re obsessed with performance, thrive under market pressure, and are driven by results, we want you on our team. This is your chance to solve some of the toughest front-end challenges in brokerage and fintech. Step up. Apply now.

At Thrillophilia, we have set sail on a mission to redefine the way people explore the world, one byte at a time. We are driven by a shared passion for excellence and a relentless pursuit of innovation. We have established ourselves as industry leaders in delivering cutting-edge solutions that have transformed the way the travel industry operates. Our commitment to pushing boundaries and creating groundbreaking technology sets us apart from the rest.

We are seeking a highly skilled and passionate Senior Software Developer with expertise in Frontend Frameworks like React.js or Next.js to join our dynamic and innovative tech team. As a Senior Software Engineer, you will play a crucial role in designing, developing, and implementing high-quality software solutions that drive the success of our travel platform. You will work closely with cross-functional teams, including product development, UI/UX design, and quality assurance, to ensure seamless integration of features and deliver exceptional user experiences. 

We are looking for individuals who are not only technically proficient but also deeply passionate about building scalable products that make a meaningful impact.

Are you ready to embark on an exciting journey where we're building the most incredible travel platform in the world?

Why Choose Thrillophilia?

A Culture of Excellence: We have cultivated a culture that nurtures creativity, celebrates diversity, and fosters collaboration. Our team is comprised of brilliant minds who thrive on challenges, embrace change, and consistently deliver exceptional results.

Impactful Projects: As a Senior Software Engineer, you will have the opportunity to work on exciting and impactful projects that shape the future of our industry. Your expertise and contributions will directly influence the success of our groundbreaking solutions and drive our mission forward.

Growth and Development: We believe in investing in our team members' growth and development. Through continuous learning and our mentorship, we empower you to expand your skill set, broaden your horizons, and reach new heights of professional excellence.

Cutting-Edge Technology: At Thrillophilia, we pride ourselves on staying at the forefront of technological advancements. As a member of our team, you will have access to state-of-the-art tools, cutting-edge frameworks, and a supportive environment that encourages exploration and experimentation.

Responsibilities:

• Develop and maintain robust, scalable, and efficient web applications using React.js / Next.js.
• Collaborate with product managers, UI/UX designers, and fellow developers to understand requirements, translate them into technical solutions, and deliver high-quality software products.
• Write clean, maintainable, and well-documented code following industry best practices and coding standards.
• Conduct thorough code reviews, provide constructive feedback, and mentor junior developers to enhance team productivity and code quality.
• Optimize application performance and ensure efficient resource utilization by conducting performance testing, monitoring, and troubleshooting.
• Stay updated with the latest industry trends, tools, and technologies related to JS and JS frameworks like React.js / Next.js, and share knowledge with the team.
• Collaborate with the DevOps team to deploy and maintain applications in cloud-based environments.
• Contribute to the continuous improvement of development processes, tools, and methodologies.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).
• At least 4+ years of relevant experience as a front-end developer
• Strong expertise in React.js / Next.js with a solid understanding of their core principles and ecosystem.
• Proficient in front-end development technologies such as HTML5/CSS, JavaScript and Typescript.
• Deep understanding of the DOM, Browser Events, JavaScript APIs, Canvas rendering etc.
• Proficiency in creating mobile websites and putting responsive design strategies into practice
• Extensive knowledge of contemporary web development tools such as Babel, PostCSS, and Webpack
• Regard for optimizations that focus on delivering content to the user as quickly as possible.
• Familiarity with version control systems, such as Git.
• In-depth SEO optimization knowledge is seen as a plus.
• Ability to write efficient, maintainable, and testable code, with a strong emphasis on software quality and best practices.
• Strong problem-solving and analytical skills, with the ability to tackle complex technical challenges and provide innovative solutions.
• Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment.
• Self-motivated and detail-oriented, with a passion for continuous learning and staying updated with emerging technologies.

If you are passionate about building revolutionary travel products, thrive in a collaborative and innovative environment, and are ready to take on exciting challenges, we would love to hear from you. 

Apply now and embark on a transformative journey to redefine the future of travel!

• 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
• Assure that all user input is validated before submitting to back-end
• 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 react.js 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.

• Bachelor’s degree in computer science, information technology, or a similar field.
• Minimum 2 years experience working as a react.js developer.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Web pack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.
• Excellent troubleshooting skills.
• Good project management skills.
  
  About Haber
  At HABER, we are solving the challenges of tomorrow, today. We are bringing together the best minds in process, engineering, computing and chemistry to develop solutions to address some of the world’s toughest challenges – water and energy scarcity and sustainability. Over the past few years there has been an explosion in unstructured data across industry driven by affordable sensing technologies and adoption of analytical instrumentation. This sudden increase in data has resulted in industries spending significant amounts of time collecting, organizing and analysing content and very little time driving value with the data. HABER is focused on reversing this trend by helping our customers spend less time collecting and analysing data and more time using HABER’s platform to drive efficiency, identify issues before they happen and uncover hidden potential. Follow us on Twitter @haber_tech or LinkedIn at linkedin.com/company/haber-technologies or visit us at haberwater.com/careers
  
   

We are looking for a web developer who is expertise in current Internet standards, including web browsers and browser specifications. expertise in creating websites / designs which are in sync with multi-platforms & screen specs. Hands-on experience with Photoshop, Corel Draw, Illustrator, Flash, Dream Weaver, jquery, JavaScript, CSS3, HTML5. Experience and understanding of site architecture, user experience, color theory and color management on the web, proper file formats, compression methods and techniques, etc. Excellent team player with a flexible, collaborative approach.

Responsibilities.

• Creating websites/a website using standard HTML/CSS practices.
• Working closely with web designers and programmers to produce the website.
• Constant communication with other colleagues in the business to develop and deploy their content - and ensuring there is a clear establishment of what can be created within what timeframe.
• Researching different software programs, and maintaining software documentation.
• Implement contingency plans in case the website goes down.
• Maintaining and expanding/enhancing the website once built.
• Managing a team might also be part of the job role.

Requirements

We are looking for an HTML developer who can write very good HTML and CSS. Below are the required skills:

• Mobile responsiveness
• ReactJS is plus
• Faster coder and Learner
• Code Alignment
• Adoption of new tech
• Tailwind CSS
• Bootstrap Framework

Key aspects of this role:

• 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 React.js 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.

To be the right fit, you'll need:
• Minimum 4+ years relevant experience in application development and React JS.
• Knowledge of React hooks such that use Context, use Reducer, use Effect.
• Knowledge of React props and state management (both functional and class component)
• Strong understanding of Error boundary concept of react.
• Work experience with any react based UI library or Redux is preferable
• Experience in building cross-browser layouts with CSS and HTML

• Substantial experience in building large complex and performant web applications using HTML5, CSS3, Typescript and Javascript across multiple browsers (Especially IE11).
• Experience in frameworks such as React (Redux, Redux Thunk or Saga, React Router, React Hooks) , Node JS and good understanding of the basics of these frameworks and their life cycles.(MUST HAVE)
• Experience in frameworks like Bootstrap and CSS pre-processors like SASS and LESS is desirable.
• Deeper understanding of network layer, HTTP, HTTPS, cookies, local storage.
• Knowledge to handle real-time async data would be a plus.
• Good knowledge on build tools like Webpack and Gulp
• Good knowledge on testing tools like Jest, Cypress, Jasmine, Karma, etc
• Experience in Git source control 
• Deeper understanding of Chrome Dev Tools.
• Deeper knowledge of UI optimizations and performance.
• Excellent communication skills, good visual design sense, in-depth experience in developing web-based applications.
• Experience leading multi engineer projects and mentoring junior engineers.
• Command an impressive portfolio of the latest UI technologies is a plus