Frontend Developer

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.

About Company: 

Espressif Systems (688018) is a public multinational, fabless semiconductor company established in 2008, with headquarters in Shanghai and offices in Greater China, India, and Europe. We have a passionate team of engineers and scientists from all over the world, focused on developing cutting-edge Wi-Fi and Bluetooth, low-power IoT solutions. We have created the popular ESP8266 and ESP32 series of chips, modules, and development boards. By leveraging wireless computing, we provide green, versatile, and cost-effective chipsets. We have always been committed to offering IoT solutions that are secure, robust, and power-efficient. By open-sourcing our technology, we aim to enable developers to use Espressif’s technology globally and build smart connected devices. In July 2019, Espressif made its Initial Public Offering on the Sci-Tech Innovation Board (STAR) of the Shanghai Stock Exchange (SSE). 

Espressif has a technology centre in Pune. The focus is on embedded software engineering and IoT solutions for our growing customers.

About Role: 

https://rainmaker.espressif.com/">ESP RainMaker provides a complete solution to makers to develop connected devices with ease. It also focuses on solving a major challenge about how the quality of connected devices can be improved. It constitutes device-side SDK, mobile apps and a cloud application. This role requires product engineering for the web UI for the RainMaker cloud.

Minimum Qualification: 

• BE/B.Tech in Computer Science with 5 to 10 years of experience
• Strong Computer Science Fundamentals

• Excellent understanding of UX and design sensibilities

• Design, develop, and test UI for web applications
• Experience with one or more of these: React, Redux, Webpack, ES6, Async JS Communication, WebSockets
• Strong debugging and troubleshooting skills
  
  

Desired Qualification:

• Significant experience with JavaScript, React and Redux.
• Experience in consumption of cloud services and REST interfaces (implementation experience would be added advantage)
• Experience with CSS pre-processors like LESS or SASS
• Expertise with cross-browser, cross-platform, and responsive design
• Solid understanding of user interactions required for Single-Page Applications
• Experience with modern browser technologies

Responsibilities: 

• Designing and developing User Interface for web applications
• Write code based in HTML, CSS, JavaScript and ReactJS
• Accurately translate user and business needs into functional, secure and efficient frontend design and code
• Experience and desire to take product/feature ownership from delivery and customer support perspective
• Collaborate with backend and quality engineers to spec, write, test, and deploy code that integrates with data streams and API endpoints
• Utilise responsive design techniques and ensure cross-browser compatibility
• Perform code reviews and improve/ensure the quality of product

What to expect from our interview process

• The first step is to email your resume or apply to the relevant open position, along with a sample of something you have worked on such as a public GitHub repo or side project etc.
• Next, post shortlisting your profile recruiter will get in touch with you via a mechanism that works for you e.g. via email, phone. This will be a short chat to learn more about your background and interests, to share more about the job and Espressif, and to answer any initial questions you have.
• Successful candidates will then be invited for 2 to 3 rounds of the technical interview as per the previous round feedback.
• Finally, Successful candidates will have an interview with HR.

What you offer us

• Ability to provide technical solutions, support that fosters collaboration and innovation.
• Ability to balance a variety of technical needs and priorities according to Espressif’s growing needs.

What we offer

• An open-minded, collaboration culture of enthusiastic technologist.
• Competitive salary
• 100% company paid medical/dental/vision/life coverage
• Frequent training by experienced colleagues and chances to take international trips, attend exhibitions, technical meetups and seminars.

• 1 - 5 years of experience as React JS developer
• Strong proficiency in JavaScript, Typescript React, Redux, HTML5 and CSS.
• Familiarity with RESTful APIs and WebSocket communication
• Experience with responsive design and development.
• Strong hold of front-end functionalities including browser testing and debugging.
• Experience working in Agile development methodology is a plus
• Excellent communication skills and an ability to work effectively in cross-functional and collaborative teams

Work Location : Bangalore

Work mode : Work from office

We are looking for a front-end developer who will be responsible for developing and designing front-end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.

Roles & Responsibilities:

● Develop and implement responsive and intuitive user interfaces for web applications using HTML, CSS, and JavaScript frameworks (e.g., React, Angular, Vue.js, Node.js)."

● Designing user interactions on web pages.

● Developing SDKs.

● Ensuring cross-platform optimization for mobile phones.

● Collaborate with UI/UX designers, back-end developers, and other stakeholders to transform design concepts into functional, feature-rich web interfaces

● Designing and developing APIs.

● Meeting both technical and consumer needs.

● Collaborate in an Agile development environment, participating in sprint planning, stand-ups, and other team meetings.

Qualifications & Skills:

● 5-9 years of experience in the relevant field.

● Proficiency with fundamental front-end languages such as HTML, CSS, and

JavaScript/Typescript

● Proficiency with JavaScript frameworks such as React-JS.

● Familiarity with database technology such as MySQL or Postgres.

● Knowledge of GitHUb, Docker,Project Versioning,SCSS/SASS style framework will be an added advantage

● Excellent verbal communication skills.

● Good problem-solving skills..

● Attention to details.

Why should you join:

● You prefer working in small groups. We're a start-up, and we think smaller teams have a lot of power. There is less management overhead and more discussion about the important work

● You care about the end-user and developer experience, as well as how the backend affects them. Rather than taking the path of least resistance, work backwards from what the user experience requires

● We offer competitive pay (above market average). We've received adequate funding from a number of well-known fintech investors, and we're planning to stay in the game for the long haul. It will be an exciting and interesting adventure ahead, and we are looking forward to working with some fantastic teammates!

What's on offer:

● Best in class compensation package

● Stock options for long term wealth creation

● Group health insurance that covers your family

● A vibrant, open and fun work culture

Responsibilities

• Take product ideas from ideation to implementation.
• Collaborate with Product and Design to create robust and usable features.
• Take ownership of the architecture for best performance and usability.
• Lead engineering discussions to ensure the best practices, maintainability and security of the application.
• Participate in design and code reviews.
• Lead and mentor the team of developers, to drive business objectives.

We are looking for

• 4+ years of experience building quality applications.
• Proficient in client-side JS frameworks such as React.js
• Passion for best design and coding practices and a desire to develop new bold ideas.
• Strong customer focus, ownership, and self-drive.
• Experience in planning, designing architecture and leading teams.
• Experience with SaaS products or an early stage startup is a plus.

• Core Javascript, HTML, CSS, JSON understanding is mandatory
• Expertise of functional programming using JavaScript (ES5, ES6)
• Expertise of UI framework - React / Redux, RXJS
• Preferred experience with new generation of Web Programming - using Micro Service, REST/JSON, GraphQL and Component UI models
• Expertise with data visualization flow development along with usage of modern charting and graphical java script libraries
• React / Redux, RXJS, HTML, CSS, Javascript (ES5, ES6), Data visualization and Chart Libraries
• Data Structure and Design Pattern
• Strong knowledge of JSON data handling, GraphQL and their working

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.

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.

Skills:

• Familiarity with RESTful APIs
• Familiarity with modern front-end build pipelines and tools
• Experience with popular React.js workflows (such as Flux or Redux)