L3 Frontend Engineer - React.js at Jio Haptik · Mumbai · 5 - 10 years · ₹18L - ₹35L / yr · Profitable · Posted 17 Mar 2025

What we want to accomplish and why we need you?
Haptik is one of the world's largest Conversational AI companies, having reached over 500 + million devices, and processed over 5 billion+ conversations till date. Haptik has been at the forefront of the paradigm shift of interaction from clicks to conversations. We have built a robust set of technology and tools that can enable any kind of conversational application. With a 400+ member strong team that is set to double in the coming year, Haptik is truly poised to lead the Conversational AI revolution with some of the best minds in the industry.
We are a full-stack conversational AI company from building products to delivering bots for our clients. We are looking for a front-end engineer who can help us build the next generation of enterprise-grade conversational AI platform.
What will you do every day?
As a front-end tech lead you will be responsible for building the Haptik platform which is used by people across the globe. You will be working closely with the product, design and platform team on a day to day basis and be responsible for the look and feel of the product. While you know how to work hard, you also know how to have fun at work and make friends with your colleagues.
Ok, you're sold, but what are we looking for in the perfect candidate?
- Have a keen eye for detail and passionate about UI and UX
- Has worked with a team of FE engineers to set tech processes and standards.
- Has experience in mentoring junior engineers.
- Have a solid understanding of front-end technologies especially React
- Build, maintain and gate-keep the platform tools
- Work closely with the PM and designers to deliver high-quality features
- Work closely with the backend engineers to understand the Interkat Platform and build for scale
- High-level estimating and scoping/breaking down of tasks
- Document features to make them easily understandable to clients
- Participate in code reviews, automated and functional testing, and other aspects of our quality assurance process
- Use and promote standard good coding practices
- Fully participate in a scrum-based, agile development team
- Maintain up-to-date knowledge of technology standards, industry trends, emerging technologies, and software development best practices
- Work experience around optimizing build artifacts and performance monitoring
- Following security standards when using cookies/others to store user information etc.
Requirements :
- 5+ years of experience working on React.js
- Prior experience of leading/mentoring a team is a plus
- Knowledge of flux and redux
- Must have extensive experience working on Javascript, HTML, CSS, animations and UI/UX principles.
- Knowledge of backend technologies is a plus
- Good attention to detail, pixel perfect designs
- Bachelor's Degree in computer science or equivalent
- Good Communication skills
- Hustler with the passion for writing good code
- Team player
- Must have experience in working in an agile environment, exposure to tools like Jira would be an added benefit.
Requirements is such a strong word. We don't necessarily expect to find a candidate that has done everything listed, but you should be able to make a credible case that you've done most of it and are ready for the challenge of adding some new things to your resume.

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Key Responsibilities
Frontend & Extension Development
• Build and maintain highly responsive, modern user interfaces using React.js for web applications, browser extensions, and Electron-based desktop clients.
• Architect and develop modular, reusable UI components using Material-UI (MUI / Joy UI) and styled-components/Emotion.
• Manage complex multi-target build pipelines (Web, Extension, Electron) using Webpack and Craco.
AI Integration & Engineering
• Seamlessly integrate Generative AI capabilities into the frontend, including AI-driven chatbots, contextual AI suggestions, and RAG (Retrieval-Augmented Generation) interfaces.
• Collaborate closely with backend and AI specialists to consume AI-powered REST APIs and WebSocket streams, ensuring fluid and responsive user experiences.
• Implement robust markdown and code rendering (e.g., react-markdown) for rich AI conversational outputs.
Real-Time Data & State Management
• Implement low-latency, real-time communication features using Socket.IO for chat and collaborative functions.
• Efficiently manage complex application state, data fetching, and caching using modern tools like React Query and Axios.
Quality & Collaboration
• Work within a monorepo/workspace structure to maintain distinct client, component, and extension packages.
• Participate in code reviews to maintain high code quality, performance, and enterprise security standards.
• Collaborate with teams using Agile/Scrum methodologies for rapid and structured delivery.
Required Skills:
• Core Languages: Proficiency in JavaScript (ES6+) and TypeScript.
• Frontend Frameworks: Strong, hands-on experience with React.js (Hooks, Context), React Query, and React Router.
• Styling & UI: Deep understanding of HTML5, CSS3, and CSS-in-JS libraries (e.g., styled-components, react-jss). Hands-on experience with MUI (Material UI / Joy UI) is highly preferred.
• Architecture & Build: Experience configuring and optimizing builds with Webpack and Craco. Familiarity with npm workspaces/monorepos.
• Real-time & APIs: Ability to design and implement robust client-side integrations with RESTful APIs and WebSockets (Socket.IO).
• Agile & Workflow: Experience working with Agile and Scrum methodologies.
Preferred/Bonus Skills:
• Experience in building and packaging Browser Extensions and/or Electron applications.
• Genuine curiosity and awareness of Generative AI workflows (e.g., prompt engineering concepts, handling streaming AI responses).
• Experience with rich text editing or markdown rendering in React.
We are seeking an experienced, hands-on SDE 3 - FE to build and optimize scalable, user-friendly applications with a focus on micro frontend architectures. The ideal candidate will blend strong UI engineering skills with modern frontend practices, ensuring responsive, secure, and high-quality experiences aligned with business needs.
Responsibilities
● Design & Build: Develop scalable, performant front-end applications using React, TypeScript, and Micro Frontend architecture.
● Code Quality: Review PRs, enforce best practices, and introduce patterns to reduce technical debt.
● UI/UX Excellence: Deliver pixel-perfect, responsive, and accessible UIs across devices and browsers.
● Performance: Optimise rendering, bundling, caching, and load times for smooth user experiences.
● Mentorship: Guide and mentor mid/junior engineers, run design/code walkthroughs, and foster a culture of technical excellence.
● AI-driven Development: Leverage AI tools to accelerate coding, debugging, testing, and documentation in day-to-day workflows.
Criteria:
Experience: ~5–7+ years in software development, with proven expertise in React, modern frontend architectures, and building scalable user interfaces.
Technical Skills
● Strong proficiency in React.js (v17+), TypeScript, and modern frontend workflows.
● Experience with Micro Frontend architectures (e.g., Module Federation, Webpack, or similar approaches).
● Solid expertise in HTML5, CSS3, and mandatory proficiency with Bootstrap for responsive design.
● Knowledge of Blade templates for frontend-backend integration.
● Good-to-have: Tailwind CSS and Material UI for component-based design systems.
● Deep understanding of state management (Redux, Recoil, or equivalent).
● Experience with frontend performance optimisation and browser dev tools.
● Familiar with testing frameworks (Jest, React Testing Library, Cypress).
● Proficiency with Docker and containerised environments.
● Experience with CI/CD pipelines for frontend deployments.
● Ability to effectively use AI-powered tools for code generation, refactoring, documentation, and productivity improvements.
Soft Skills
● Clear and effective communication.
● Strong sense of ownership and accountability.
● Ability to break down complex problems and provide accurate estimates.
● Openness to adopt new tools/technologies to improve team efficiency.
What we offer:
● An exceptional team: Our hiring bar is high, and your colleagues are talented, motivated self-starters.
● A learning environment: We are a learning organisation, and as a team, we will help you grow and encourage you to learn and upgrade your skills.
● Outstanding compensation: top talent deserves top pay, and our salary, equity and benefits reflect this.
● Opportunities to grow: Encourages you to attend technical conferences and take company funded educational courses to advance your skills.
● An opportunity to be a key member of a well-capitalised, leading brand in an online real estate investing platform.
Role : Senior Full Stack Engineer (Frontend Focus)
Location : Hyderabad/Bangalore/Gurgaon/Mumbai
Role Summary
We're looking for a **Senior Full Stack Engineer (Frontend Focus)** to build modern, AI-powered enterprise applications. You'll primarily focus on creating scalable, high-performance frontend experiences using React and Next.js, while contributing to backend services, APIs, and AI integrations where needed. You'll work closely with Product, Design, and AI teams to build intuitive, performant, and production-ready applications.
Minimum Qualifications
* 3–7 years of software engineering experience.
* Strong experience with React, Next.js, TypeScript, JavaScript, HTML, and CSS.
* Experience building and shipping production-grade frontend applications, including enterprise dashboards and data-intensive applications.
* Strong understanding of frontend architecture, state management (Redux, Zustand, Context API, or similar), rendering lifecycle, and performance optimization, including code splitting, lazy loading, bundle optimization, caching strategies, and Core Web Vitals.
* Experience building complex UI experiences using modern frontend technologies, including data visualization, Canvas, WebGL, Service Workers, and Web Workers.
* Experience building and integrating REST APIs and backend services using Node.js.
Preferred Qualifications
* Experience building AI-powered applications or AI agents using LangChain, LlamaIndex, CrewAI, or similar AI frameworks.
* Experience with vector databases and Retrieval-Augmented Generation (RAG) applications.
* Experience with DevOps practices and cloud platforms such as AWS, Azure, or GCP.
* Experience with Docker and Kubernetes.
* Experience building reusable component libraries, design systems, or micro-frontend architectures.
Frontend Developers
- Contract To Hire (Initial Engagement: 6 months)
Experience: 5+ years
Mandatory Skills:
● React.js
● React Native
● JavaScript
● Experience in developing scalable and maintainable web and mobile applications
● Frontend architecture and reusable components
● State management
● REST API/backend service integration
● Application performance optimisation
● Authentication/authorisation and frontend security
● Git and pull-request-based development
● Clean, reusable and testable code
● Agile/product development experience
● Code reviews, debugging and production issue resolution
Good to have:
● TypeScript
● Next.js
● Jest / React Testing Library
● CI/CD
● Application monitoring
● Mobile deployment
The recruiter has not been active on this job recently. You may apply but please expect a delayed response.
Key Requirements / Skills
- 6+ years of overall experience in software development with strong expertise in building scalable web applications.
- 2+ years of experience as a Technical Lead, managing development teams and driving project delivery.
- Strong technical decision-making ability, including architecture design, technology selection, and implementation of best practices.
- Front-end expertise: Strong experience in React, JavaScript, TypeScript, and building responsive and user-friendly UI/UX.
- Back-end development: Hands-on experience with Node.js, RESTful APIs, API design, and server-side architecture.
- Gen AI Expertise: Experience in building RAG & LLM Systems, implementing AI/ML models or integrating AI-based solutions to solve business problems.
- Cloud & DevOps exposure: Experience with AWS/Azure, understanding of CI/CD pipelines, and cloud-based deployments.
- Code quality & best practices: Experience in code reviews, Git version control, and ensuring maintainable and secure code.
- Team leadership: Ability to mentor developers, guide technical discussions, and collaborate across teams.
- Strong communication skills to effectively interact with technical and non-technical stakeholders.
- Experience working in high-compliance environments such as healthcare systems is a plus.
Education Qualifications:
- B.Tech/M.Tech in CSE/IT/AI/ML from a good university
Job Description:
https://drive.google.com/file/d/12Fcie5u0rhyHeE_xhsNTeGk3mlPId1Mb/view?usp=drive_link
About the team
SecurITe’s mission is to build an Agentic‑AI driven security platform that protects critical infrastructure from modern cyber threats. Our focus is on delivering highly performant, resilient, and intelligent network security systems that help defenders stay ahead of adversaries.
About the Role
We’re looking for an exceptional Front-End Developer to help lead the development of our next‑generation cybersecurity AI platform. This is a rare opportunity to shape how agentic AI transforms the future of cyber defense.
In this role, you will be instrumental in bringing our innovative Agentic graphical programming language to life. As a senior front-end developer, you will work closely with our systems architect to shape the technological direction of our project. Your responsibilities will include ensuring that our user interface is both functional and visually appealing, contributing to an exceptional user experience.
What You’ll Do
● Collaborate with the systems architect and development team to design and implement a robust front-end architecture.
● Develop, test, and maintain high-quality user interfaces using modern front-end technologies.
● Translate UI/UX design wireframes into code, producing visually appealing and user-friendly interfaces.
● Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
● Identify and troubleshoot front-end issues and implement effective solutions.
● Stay up-to-date with the latest industry trends and technologies to keep our product at the cutting edge.
● Own and drive project delivery end-to-end
● Guide and mentor other engineers to ensure high-quality code and best practices
Required Experience
● Proficiency in Languages HTML5, CSS3, and Angular 17+.
● Frameworks node.js, Flask, RESTful APIs, Strapi (CMS) ,Swagger/OpenAPI and related front-end technologies.
● Experience with front-end frameworks and libraries for Angular.
● Strong understanding of responsive design and mobile-first development.
● Knowledge of version control systems (e.g., Git).
● Excellent problem-solving and debugging skills.
● Strong communication and collaboration skills.
● Bachelor’s degree in Computer Science, Information Technology, or a related field.
● 15+ years of experience as a Front-end Developer, with a demonstrated track record in federal projects.
Nice to Have
● Advanced Skills: Experience with state management patterns (Redux, NgRx, Zustand) and building custom interactive components using SVG, Canvas, or libraries like GoJS, D3.js and React Flow.
● Experience working in cybersecurity products.
● Building enterprise UI/UX.
● Using AI for daily work.
● Early stage startup experience.
The Mindset
● Problem Solver: You thrive on complex, ambiguous challenges and engineer elegant solutions.
● Ownership‑Driven: You take initiative, move fast, and deliver outcomes without hand‑holding.
● Continuous Learner: You stay ahead of the curve in AI, ML, and emerging technologies.
● Startup DNA: You excel in fast‑moving environments where priorities evolve and impact is immediate.
This role is for our client, who are reimagining video security for the modern world. Their cloud-native platform uses computer vision and AI to help businesses stay safe, make smarter decisions, and move faster; from real-time alerts to seamless clip sharing and multi-site visibility.
You’ll be joining an ambitious, fast-moving team that values clarity, craftsmanship, and impact. Every person there has a voice, ships meaningful work, and helps shape how AI can make the world safer and more connected.
Responsibilities
- Architect and scale high-performance React and TypeScript applications built for real-time surveillance operations.
- Build UI components for video playback, timeline scrubbing, and multi-camera grid management.
- Optimize client-side rendering, network bandwidth, and browser memory usage when streaming high-frequency data.
- Partner closely with Product, Design, and Machine Learning engineers to transform complex AI detection capabilities into simple user experiences.
- Establish frontend architecture patterns, maintain testing standards, and mentor team members.
Skills And Qualifications
- Experience building production web applications in React and TypeScript
- Deep understanding of frontend performance profiling, browser memory management, and client-side optimization
- Hands-on experience working with real-time data streams (WebSockets, SSE, or WebRTC)
- Strong software engineering fundamentals, including modular architecture, state management, and automated testing
- High bar for UI detail, usability, and web accessibility is a plus
- Experience with video technologies on the web (HLS, WebRTC, MSE, or Canvas/WebGL video rendering) is a plus
- Experience building spatial or location-aware dashboards using mapping tools (e.g., Mapbox, Leaflet) is a plus
- Prior experience in fast-paced startup environments or developer-centric B2B SaaS platforms is a plus
What We Offer
- Competitive compensation package
- Early-stage equity in a rapidly growing company
- Referral bonuses
- Team dinners and regular team off-sites
- The latest Apple products and unlimited tech stack
The company is on a mission to transform a $50B+ legacy industry by bringing the power of cutting-edge multimodal LLMs and computer vision to real-world security and operations. From firearm detection to intelligent access control, our AI-native platform turns every camera and sensor into a smart system that enhances safety, efficiency, and awareness.
NEED TO HAVE :
1) Have some knowledge of front end like React.JS
2) HTML, CSS
3) Strong in JavaScript concepts
4) Good communication skills
5) Loves to code
GOOD TO HAVE :
1) Experience with type script will be a plus
2) Experience with Nest.JS framework will be a plus
3) Strong hold on ES6 principles.
4) Familiar with TDD ( Test Driven Development ) will be a plus.
5) Familiar with working in CI / CD will be a plus
6) Micro-Service architecture knowledge will be an added benefit.
You can contact me on this WhatsApp number: Nine three one six one two zero one three two
Software Engineer
Company Summary :
As the recognized global standard for project-based businesses, Deltek delivers software and information solutions to help organizations achieve their purpose. Our market leadership stems from the work of our diverse employees who are united by a passion for learning, growing and making a difference. At Deltek, we take immense pride in creating a balanced, values-driven environment, where every employee feels included and empowered to do their best work. Our employees put our core values into action daily, creating a one-of-a-kind culture that has been recognized globally. Thanks to our incredible team, Deltek has been named one of America's Best Midsize Employers by Forbes, a Best Place to Work by Glassdoor, a Top Workplace by The Washington Post and a Best Place to Work in Asia by World HRD Congress. www.deltek.com
Business Summary :
The Deltek Engineering and Technology team builds best-in-class solutions to delight customers and meet their business needs. We are laser-focused on software design, development, innovation and quality. Our team of experts has the talent, skills and values to deliver products and services that are easy to use, reliable, sustainable and competitive. If you're looking for a safe environment where ideas are welcome, growth is supported and questions are encouraged – consider joining us as we explore the limitless opportunities of the software industry.
Position Responsibilities:
- Collaborate with the development team to maintain, enhance, and scale the product for enterprise use.
- Design and develop scalable, high-performance solutions using cloud technologies and containerization.
- Contribute to all phases of the development lifecycle, following SOLID principles and best practices.
- Write well-designed, testable, and efficient code with a strong emphasis on Test-Driven Development (TDD), ensuring comprehensive unit, integration, and performance testing.
- Ensure software designs comply with specifications and security best practices.
- Contribute ideas to improve application maintainability and performance under the guidance of senior engineers.
AI-Specific Responsibilities:
- Integrate AI-powered tools and frameworks to enhance code quality and development efficiency.
- Utilize AI-driven analytics to identify performance bottlenecks and optimize system performance.
- Implement AI-based security measures to proactively detect and mitigate potential threats.
- Leverage AI for automated testing and continuous integration/continuous deployment (CI/CD) processes.
- Support the adoption and effective use of AI agents for automating repetitive development, deployment, and testing processes within the engineering team.
Qualifications :
- 2-3 years of software engineering experience, including at least 1 year of hands-on AI/ML experience.
- Proficient in Node.js and TypeScript/React development, with experience in React 18+, Hooks (useState, useEffect, useContext), and WebSocket clients.
- Strong full-stack development experience with modern web technologies.
- Experience with ASP.NET Core (C#) is good to have.
- Experience developing REST APIs.
- Proficiency in front-end technologies (JavaScript, HTML, CSS, Bootstrap, and UI frameworks).
- Strong knowledge of cloud platforms (AWS preferred), including scalability and enterprise cloud.
- Experience with security best practices in web and API development.
- Experience with Test-Driven Development (TDD).
- Strong database experience, focused on query optimization
- Strong analytical skills, problem-solving abilities, and curiosity to explore new technologies.
- Ability to communicate effectively, including explaining technical concepts to non-technical stakeholders.
- High commitment to continuous learning, innovation, and improvement.
AI-Specific Qualifications:
- Practical experience with prompt engineering and LLM response optimization
- Knowledge of AI-driven development tools and platforms such as Claude Code, GitHub Copilot in Agentic Mode.
- Knowledge of AI-based security protocols and threat detection systems.
- Experience integrating GenAI or Agentic AI agents into full-stack workflows (e.g., using AI for code reviews, automated bug fixes, or system monitoring).
- Demonstrated proficiency with AI-assisted development tools and prompt engineering for code generation, testing, or documentation.






