React.js Developer

Job Title : Frontend Developer (React + Three.js)

Location : Noida

Experience : 2+ Years

Job Description :

We are looking for a Frontend Developer with strong skills in React.js and Three.js to build interactive, high-performance 3D web applications. The role involves creating smooth 3D experiences, optimizing performance, and collaborating with cross-functional teams.

Key Responsibilities :

• Develop responsive and dynamic UIs with React.js/Next.js.
• Implement and optimize 3D visualizations using Three.js/WebGL.
• Manage 3D assets (GLTF/GLB, textures, compression).
• Ensure performance optimization, cross-browser compatibility, and scalability.
• Collaborate with designers and backend teams to deliver seamless experiences.

Required Skills :

• JavaScript/TypeScript, React.js/Next.js
• Three.js / WebGL for 3D rendering & interactions
• State management (Redux, Zustand, Context API)
• 3D asset pipeline (GLTF/GLB, textures, compression tools)
• Performance optimization (profiling, draw calls, FPS tuning)
• API integration (REST/GraphQL)
• Version control (Git)

🌟 About Us:

We create AI solutions for hospitals, combining scientific rigor with startup agility.

iON Health's SmartAI is an AI-powered tool developed to help clinicians interact with a patient's medical record using natural language, transforming how healthcare providers access and synthesize clinical data

Founded by serial entrepreneurs with more than 15 successful exits, we offer the opportunity to work alongside elite engineers, clinicians, and product innovators to improve the health of millions of patients each year.

🎯 What We’re Looking For:

• 7+ years of experience with React.js (front-end) and Node.js/Express (back-end).
• Solid understanding of relational and NoSQL databases (e.g., PostgreSQL, MongoDB).
• Experience with cloud platforms (AWS/GCP/Azure) and CI/CD pipelines.
• Comfort working in fast-paced, ambiguous environments with high ownership.
• Prior experience in AI/ML, healthcare, or enterprise software.
• Must Have: Bachelors in Engineering from IIT/NIT/IIIT or similar institutions.
• Good to have: Experience in AI focused startups, early-stage teams, or as a founding engineer.

🛠 What You’ll Do:

• Design, develop, and deploy scalable web applications across the stack (front-end + back-end).
• Collaborate with founders, designers, and other engineers to take features from concept to production.
• Write clean, maintainable, and efficient code using [React.js, Node.js, TypeScript, or your tech stack].
• Work on database design and API development (REST/GraphQL).
• Optimize applications for maximum speed and scalability.
• Contribute to architectural decisions and set up best practices for the team.
• Be hands-on with debugging, testing, and performance tuning.

💡 Why Join Us?

• Work alongside elite engineers, clinicians, and product innovators
• Competitive salary + equity options (you’ll grow as the company grows)
• Fast decision-making and zero bureaucracy
• Shape the future of AI in healthcare

Requirements

• 3.5+ years of experience in React JS and Redux
• Expert in React.j, ideally using TypeScript language extensions
• Good understanding of JavaScript Design Patterns
• Good experience writing front-end test cases
• HTML5, CSS3 and Responsive web design are mandatory
• Exposure to Scrum methodology and XP technical practices such as unit testing, pair programming, test-driven development, continuous integration or continuous delivery
• Self-motivated, fast learner, detail-oriented, team player and a sense of humour

Frontend Developer (ReactJS)

Company Profile

Egregore Labs (www.egregorelabs.com) is a financial software company founded in 2017 by Prashant Vijay (ISB, Tulane) & Hari Balaji (IIM Ahmedabad, IIT Madras) both of whom have spent over a decade each in Financial Services, with a majority of their experience at Goldman Sachs across New York, Hong Kong & Singapore in roles across Trading, Quant & Technology.
Opportunity
We are looking for an experienced Frontend engineer with ReactJS development experience to join our team.

Here’s are some of the things you might have to do on any given day:

• Implement responsive and performant UIs with user centered approach with frontend technologies including ReactJS, Javascript(ES 6), Typescript, SCSS, etc
• Write meaningful test cases for frontend &amp
• Integrate our products with 3rd party products/tools/services

• Develop Infrastructure for delivering services using a performance driven approach, build databases, schedule automated jobs, etc

Ideal Background / Experience

• At least 12 months of diverse experience in web development for product or services oriented environment with exposure to working production deployments
• Expertise in programming using Python/ReactJS or similar scripting languages
• In-depth exposure to technologies used in web-based SaaS products, including REST APIs
• Sound understanding of Postgres and NoSQL databases such as MongoDB

Nice to have exposure to any of

• AWS
• Azure
• ELK
• Object Relational Models (SQLAlchemy, etc)
• Google APIs
• Microservices Architecture Pattern
• NodeJS / ExpressJS

Work From Home

Package: upto 10L

• Work on large-scale, custom distributed software systems using JavaScript,
• Node (ReactJS, VueJs) and the likes
• We work almost exclusively on customer site providing a mix of delivery and
• consulting services, so you'll be flexible about travel
• Employ Agile development including task estimation, test automation, deployment automation, and Continuous Integration to improve overall execution speed and product quality
• Work in a dynamic, collaborative, transparent, non-hierarchical, and ego-free culture where your talent is valued over a designation or title
• Spread the word about best practices in software development inside and outside
• Equal Experts community like Expert Talks

• 3 + years of Hands-on development and delivery experience with JavaScript, and frameworks the likes
• HTML, CSS, React Js, Vue Js, Webpack, Grunt, Gulp.
• Testing tools like Jasmine, Jest, Enzyme
• Passion for software engineering and craftsman-like coding prowess
• Great OO skills, including strong design patterns knowledge
• Experience working with Agile, TDD, Lean, and/or Continuous Delivery approaches and best practices, such as Extreme Programming (XP)
• Enthusiastic to work collaboratively with people and sharing your ideas to solve real business problems.

• Responsible for development of new highly responsive, web-based user interface
• Construct visualizations that can depict vast amounts of data
• Work and collaborate with the rest of the engineering team
• Work with product team and graphic designers
• Learn and understand user interactions
• Develop a flexible and well-structured front-end architecture, along with the APIs to support it

Requirements and qualifications

• B.S Degree in Computer Science
• Experience with JavaScript
• Experience with REACT
• Experience with HTML / CSS
• Experience with REST API's
• Git knowledge is a plus
• Team player
• Good time-management skills
• Great interpersonal and communication skills

• At least 2+ years of product development experience with expertise in designing and implementing high-performance web applications
• You must be proficient in Problem Solving and Data structures since you got to find the best way of handling a huge set of data.
• Strong hands-on experience in developing web applications using JavaScript
• Strong experience and knowledge in single-page frameworks like ReactJS/Angular/VueJs/other frameworks and ability to design the architecture of single-page applications.
• Strong hands-on experience with JAVASCRIPT, OOPS Concepts, Single page applications, REACTJS, D3, NodeJS, etc
• Build tools such as grunt, gulp, web pack.
• Exceptional debugging skills and knowledge on browser developer tools
• Familiar with RESTful APIs to connect applications to back-end services
• Familiar with optimization techniques (both in file weight and perceived/actual processing speed), debugging techniques, dynamic content retrieval, state management e.g: (Redux), cross-browser support.
• Experience in optimizing the application for performance and scalability using CDN, caching, etc
• Deep experience developing modular, object-oriented JavaScript Strong command of the HTTP protocol and the latest web standards
• Knowledge on Node server, Socket connections and mechanisms to handle real-time async data would be a plus.
• Very Good understanding of Agile/Scrum methodologies
• Very strong full stack experience with familiarity in serving technologies such as HTTP, CDN, proxies and caching
• Working experience with distributed teams and leading them is a plus
• Strong hands-on on writing test cases and documenting UI component.