
About ProjectDiscovery
ProjectDiscovery is an open-source powered cyber security company with a mission to democratize security. With one of the largest open-source security communities in the world, we host contributions from security researchers and engineers to our 20+ open-source projects, including tools like Nuclei and httpx, which have earned us over 100k GitHub stars and millions of downloads.
We’re a passionate, globally distributed team of ~35, driven by the shared mission of revolutionizing the application security landscape. Backed by $25M in funding, we’re looking for talented individuals to join us in Jaipur office.
Learn more at:
🌐 ProjectDiscovery.io
📂 ProjectDiscovery GitHub
About the Role
As a Product Frontend Engineer at ProjectDiscovery, you'll craft snappy, responsive, and scalable user interfaces. Working closely with our design, engineering, and founders, you'll create intuitive tools that empower both enterprise users and the thousands of individual users at scale.
In this role, you will:
- Build new user-facing features with beautiful and scalable UI components
- Implement complex React components like the virtualized rendering of large data tables with filters, real-time streaming, pagination and grouping.
- Create reusable and scalable react components e.g. shadcn/ui for dynamic interfaces.
- Act like owners, actively refine the front-end experience and performance.
- Work closely with founders and design engineers to implement new features.
- Improve application performance by profiling
Why Join Us?
- Competitive compensation package and stock options. (with extended exercise terms)
- Inclusive Healthcare Package.
- Learn and grow - we provide mentorship and send you to events that help you build your network and technical skills.
- Learn with intense innovation and software shipping cycles. We ship multiple times a week and push major releases a couple of times a month.
Our Interview Process
We identify talent through a streamlined process:
- We value efficiency and technical excellence in our hiring process:
- Application Review: Your application is reviewed by a technical team member.
- Initial Screening: A short call to understand your background, goals, and fit.
- Technical Rounds:Coding Assessment: Solve challenges using our tech stack.
- Create PR: Develop or enhance a feature related to one of our open-source tools.
- Final Round: Showcase your work, share your vision, and discuss how you can contribute to ProjectDiscovery at our office in Jaipur.
Apply Now to join ProjectDiscovery and help create exceptional user experiences while shaping the future of application security.

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We are seeking a highly skilled React JS Developer with exceptional DOM manipulation expertise and real-time data handling experience to join our team. You'll be building and optimizing high-performance user interfaces for stock market trading applications where milliseconds matter and data flows continuously.
The ideal candidate thrives in fast-paced environments, understands the intricacies of browser performance, and has hands-on experience with WebSockets and real-time data streaming architectures.
Key Responsibilities
Core Development
- Advanced DOM Operations: Implement complex, performance-optimized DOM manipulations for real-time trading interfaces
- Real-time Data Management: Build robust WebSocket connections and handle high-frequency data streams with minimal latency
- Performance Engineering: Create lightning-fast, scalable front-end applications that process thousands of market updates per second
- Custom Component Architecture: Design and build reusable, high-performance React components optimized for trading workflows
Collaboration & Integration
- Work closely with traders, quants, and backend developers to translate complex trading requirements into intuitive interfaces
- Collaborate with UX/UI designers and product managers to create responsive, trader-focused experiences
- Integrate with real-time market data APIs and trading execution systems
Technical Excellence
- Implement sophisticated data visualizations and interactive charts using libraries like Chartjs, TradingView, or custom D3.js solutions
- Ensure cross-browser compatibility and responsiveness across multiple devices and screen sizes
- Debug and resolve complex performance issues, particularly in real-time data processing and rendering
- Maintain high-quality code through reviews, testing, and comprehensive documentation
Required Skills & Experience
React & JavaScript Mastery
- 5+ years of professional React.js development with deep understanding of React internals, hooks, and advanced patterns
- Expert-level JavaScript (ES6+) with strong proficiency in asynchronous programming, closures, and memory management
- Advanced HTML5 & CSS3 skills with focus on performance and cross-browser compatibility
Real-time & Performance Expertise
- Proven experience with WebSockets and real-time data streaming protocols
- Strong DOM manipulation skills - direct DOM access, virtual scrolling, efficient updates, and performance optimization
- RESTful API integration with experience in handling high-frequency data feeds
- Browser performance optimization - understanding of rendering pipeline, memory management, and profiling tools
Development Tools & Practices
- Proficiency with modern build tools: Webpack, Babel, Vite, or similar
- Experience with Git version control and collaborative development workflows
- Agile/Scrum development environment experience
- Understanding of testing frameworks (Jest, React Testing Library)
Financial Data Visualization
- Experience with financial charting libraries: Chartjs, TradingView, D3.js, or custom visualization solutions
- Understanding of market data structures, order books, and trading terminology
- Knowledge of data streaming optimization techniques for financial applications
Nice-to-Have Skills
Domain Expertise
- Prior experience in stock market, trading, or financial services - understanding of trading workflows, order management, risk systems
- Algorithmic trading knowledge or exposure to quantitative trading systems
- Financial market understanding - equities, derivatives, commodities
Technical Plus Points
- Backend development experience with GoLang, Python, or Node.js
- Database knowledge: SQL, NoSQL, time-series databases (InfluxDB, TimescaleDB)
- Cloud platform experience: AWS, Azure, GCP for deploying scalable applications
- Message queue systems: Redis, RabbitMQ, Kafka, NATS for real-time data processing
- Microservices architecture understanding and API design principles
Advanced Skills
- Service Worker implementation for offline-first applications
- Progressive Web App (PWA) development
- Mobile-first responsive design expertise
Qualifications
- Bachelor's degree in Computer Science, Engineering, or related field (or equivalent professional experience)
- 5+ years of professional React.js development with demonstrable experience in performance-critical applications
- Portfolio or examples of complex real-time applications you've built
- Financial services experience strongly preferred
Why You'll Love Working Here
We're a team that hustles—plain and simple. But we also believe life outside work matters. No cubicles, no suits—just great people doing great work in a space built for comfort and creativity.
What We Offer
💰 Competitive salary – Get paid what you're worth
🌴 Generous paid time off – Recharge and come back sharper
🌍 Work with the best – Collaborate with top-tier global talent
✈️ Adventure together – Annual offsites (mostly outside India) and regular team outings
🎯 Performance rewards – Multiple bonuses for those who go above and beyond
🏥 Health covered – Comprehensive insurance so you're always protected
⚡ Fun, not just work – On-site sports, games, and a lively workspace
🧠 Learn and lead – Regular knowledge-sharing sessions led by your peers
📚 Annual Education Stipend – Take any external course, bootcamp, or certification that makes you better at your craft
🏋️ Stay fit – Gym memberships with equal employer contribution to keep you at your best
🚚 Relocation support – Smooth move? We've got your back
🏆 Friendly competition – Work challenges and extracurricular contests to keep things exciting
We work hard, play hard, and grow together. Join us.
Job Title
Technology Lead – Frontend
Job Responsibilities:
- Collaboratively work with UX team, product managers, back-end engineers and other technical teams to create new, delightful and scalable UI
- Mentor junior members through training and individual support
- Responsible for all front end development on a project
- Ensure the technical feasibility of UI/UX designs
- Optimize application for maximum speed and scalability
- Identify and troubleshoot UX problems (e.g. responsiveness)
- Conduct layout adjustments based on user feedback
- Adhere to style standards on fonts, colors and images
- Optimize existing user interface designs
- Proactively learn and accordingly apply new technologies, best design practices and usability patterns
The ideal candidate must -
- 5+ years of experience working with React or React-based frameworks
- Proficiency with browser-based debugging and performance testing
- Proficiency in Git and version control
- Considerable experience with a testing framework (Jest/Mocha)
- Familiarity with RESTful APIs and GraphQL
- Knowledge of modern authorization mechanisms, such as JWT Tokens
- Good understanding of common front-end development tools such as Babel, Webpack, NPM, Yarn etc
- Hands-on experience with CSS-in-JS libraries
- Proficient understanding of cross-browser compatibility issues and ways to work around them
- Keen to learn, mentor and willingness to take ownership of work items
- Possess strong communication and self-accountability
Skills
REACT.JS
Job Description
We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities
-
Developing new user-facing features using React.js
-
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
The ideal candidate will be responsible for developing highly scalable and secure code.
- Proficient in client & server-side JavaScript, HTML5, CSS3 and webpack
- Competent in building single page web applications using Node.js and React Js
- Redux for state management
- Universal rendering (Client-side rendering and Server-side rendering)
- Experience with cross-browser, cross-platform, and design constraints on the web
- Experience in developing automated unit and functional tests
- Experience in an agile development process
- Solid knowledge of algorithms and design patterns
- Have a passion for quality and writing clean, readable code that scales and performs well
- Good interpersonal communication skills
- 1+ years of software design and web application development
Culture
- Fast-paced, intellectually stimulating, steep learning, and growth
- Close-knit, hardworking, supportive colleagues
- Challenging work
- Flat organization with no hierarchy
- If you like problem solving, and love latest technology, there are very few better places
How we are different
-We are young and dynamic team who are obsessed with solving business problem at scale -We are a technology agnostic company who focus more on finding the optimal solution to business problem rather than technology
Why to join us
-We provide huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career
-We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
-There are two technology Co-founder in the company who are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in copanies like Samsung, Purplle, Loylty Rewardz
-Get mentored by the best in the industry
-Flexible working hours
-Perks best in the industry
Key responsibilities:
- Working on MERN stack product development for core product
- Exploring possibilities with proof of concepts & prototyping
- Building the product as per specifications
- Developing the user-facing features using React.js
- Designing a modern highly responsive web-based user interface
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high-quality code
- Learn and understand user interactions
- Optimising components for maximum performance across a vast array of web-capable devices and browsers
- Coordinating with various teams working on distinct layers
- As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive.
Skills required
- Node.js & ReactJS/Next.js ( MEAN/MERN Stack)
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Prior experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with more current specifications of EcmaScript
- Familiarity with RESTful APIs
- Great CSS skills. Familiarity with React Styled Components, SCSS, LESS, etc.
- Knowledge of modern authorisation 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 optimisation.
- Familiarity with code versioning tools
- Familiarity with Test Driven Development and tools like JEST & React Testing Library is a plus.
- Familiarity with Firebase and other backend as a services is a plus.
Hi
About the Company:Our Client is Private Limited aims to be the country’s first food platform that brings together digitalfirst brands, experiences and retail destinations that will influence and shape the narrative around food amongst India’s most discerning consumers.
Job Location : Mumbai
What you’ll be doing?
• Developing new React Applications
• 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 - Thorough understanding of ReactJS, React Native, and it's core principles.
• Experience with the backend framework ExpressJs. - Experience with popular ReactJS workflows (such as Flux or Redux)
• Familiarity with RESTful APIs, javascript unit testing framework, modern front-end builds pipelines, and tools
What you’ll bring?
• We are looking for an experienced React developer to be part of a diverse, fast pace and energetic team at Consumer Technologies
. • The candidate will be expected to develop and manage Web and Mobile interfaces built in ReactJS and React Native and at the same time provide troubleshooting and 2nd-tier support for existing applications
. • The candidate should be a self-starter, who is proactive, positive, flexible, and a good leader.
• Minimum qualifications: B.Tech./B.E. in CS, IT, or ECE
• 3 to 5 years of experience as React Native Developer or React.JS development.
Regards
Team Merito
Responsibilities
- Write clean, testable code with unit tests
- Build and improve code across the entire stack
- Ensure project scalability by having good project architecture
- Participate in the entire application life cycle, focusing on coding and debugging
- Responsible for technical guidance and leading a team of react developers ensuring timely delivery
Requirement
- Strong React.js, Node.js, and typescript experience
- Working knowledge of React Native and Redux-Saga
- Hands-on experience with REST APIs, HTML/CSS
- Knowledge of GIT
- Proficiency in SQL
- 3-4 years of minimum experience
You take care of our business we will take care of you,
- We make sure you are growing professionally with quarterly goals and appraisals.
- Health is wealth, so we provide health insurance
- Stand on Top - Employee professional development program
- Welcoming a new member in the family is a great please so we provide maternity and paternity leave
And much more...
- Expertise of UI framework - React/Redux, RXJS
- Experience with React Native is preferred
- Preferred experience with new generation of Web Programming - using Micro Service, REST/JSON, Component UI models
- Expertise with data visualization flow development along with usage of modern charting and graphical java script library
- Preferred experience with AWS RedShift or Postgress
- React/Redux, RXJS, HTML, CSS, Javascript (ES5, ES6), Data visualization and Chart Libraries
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.
Responsibilities :
- 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 it to the back-end.
- Collaborate with other team members and stakeholders.
Skills And Qualifications :
- Good understanding of Angular 6+ or React.
- Proficient with JavaScript and jQuery.
- Proficient understanding of web markup, including HTML5, and CSS3.
- Good understanding of server-side CSS pre-processing platforms, such as LESS and SASS.
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of code versioning tools, such as Git and Bitbucket.
- Good understanding of SEO principles and ensuring that application will adhere to them.
- Excellent verbal communication skills.
- Good problem-solving skills.
- Knowledge of software development methodologies like Agile, waterfall, and tools like Jira.
Job Summary
- Minimum 2years working experience in Application development using Angular 5/6.
- Strong proficiency in JavaScript and the JavaScript object model, JS MVC frameworks, redux such as Angular5/6, State Management With NgRx(Required).
- RestAPI Integration via Http,
- ThirdParty Integrations (Angular Material or PrimeNG),
- Lazyloading ( custom preloading Strategy ),
- Validation,
- Reactive Architecture ( RxJs Observables & Operators )
- Unit Testing (*not mandatory but would be a plus),
Responsibilities and Duties
- Be part of a full team delivering a complete front-end application
- Ensuring high performance on mobile and desktop
- Cooperating with the back-end developer in the process of building the RESTful API
- Develop/Design, implement, and test high-quality web applications in a cloud-based environment.
- Help brainstorm and plan new applications and web services.
- You will take ownership of technical problems and their resolution, including proactively
- Communicating with product managers, developers, architects, and the operations team.
- Provide accurate effort-estimates for deliverables.









