JavaScript Developer

Binaire Pvt. Ltd.; New Delhi; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Binaire Pvt. Ltd. is seeking a skilled frontend developer who excels at crafting efficient, scalable user interfaces and collaborates closely with designers to deliver seamless UX.

You will design and implement UIs, APIs, and backend integrations, including Firebase or Supabase, while working across RESTful and GraphQL endpoints. Minimum 3–4 years of experience in frontend technologies is expected. The role offers opportunities to influence architecture and work on cutting-edge web and desktop

Qualifications

• 3–4 years of experience in frontend/full-stack development.
• Strong UI/UX design sensibilities and ability to translate designs into pixel-perfect interfaces.
• Experience with Vanilla JS, React.js, Node.js, and Electron.js.

Responsibilities

• Design and implement user interfaces, APIs, server communication, and backend service integration.
• Build and maintain responsive, high-performance UIs using Vanilla JS, React.js, and modern CSS.
• Collaborate with designers to translate UI/UX wireframes into interactive applications.
• Develop, document RESTful APIs and GraphQL endpoints.
• Handle server-side logic with Node.js and secure practices.
• Create cross-platform desktop apps using Electron.js.
• Integrate APIs and backend services into Electron-based apps.
• Implement authentication, data storage, and real-time features with Firebase or Supabase.
• Optimize queries and ensure data consistency across systems.

Skills

Vanilla JS (ES6+)

React.js

Node.js

Electron.js

UI/UX principles

Advanced CSS (Flexbox, Grid,animations

Designing and consuming APIs

Firebase or Supabase

TypeScript

State management libraries (Redux, etc

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Tools

Firebase

Supabase

OpenCV.js

Three.js

Electron.js

Job description

The ideal candidate will excel at writing efficient, scalable code, have a strong sense of UI/UX design, and the ability to collaborate with designers to build seamless user experiences.

You will be responsible for designing and implementing user interfaces, developing APIs, handling server communication, and integrating backend services such as Firebase or Supabase.

Minimum experience: 3–4 years.

Key Responsibilities

Frontend Development

• Build and maintain responsive, dynamic, high-performance UIs using Vanilla JS, React.js, advanced CSS, and modern design practices.
• Collaborate with designers to translate UI/UX wireframes into interactive, pixel-perfect applications.
• Ensure smooth user experiences with attention to accessibility, responsiveness, and usability.
• Develop, maintain, and document RESTful APIs and GraphQL endpoints.
• Handle server-side logic using Node.js with secure and efficient practices.
• Manage data flow between front-end and back-end systems, ensuring reliability and performance.
• Create and maintain cross-platform desktop applications using Electron.js.
• Integrate APIs, UI components, and backend services into Electron-based applications.
• Implement authentication, data storage, and real-time features using Firebase or Supabase.
• Optimize queries, manage schema design, and ensure data consistency across systems.
• Work closely with designers, product managers, and other developers to deliver polished features.
• Participate in code reviews, provide constructive feedback, and maintain best practices in version control.
• Troubleshoot, debug, and optimize applications for performance and scalability.

Requirements

• In-depth knowledge of Vanilla JS (ES6+), React.js, Node.js, and Electron.js.
• Strong understanding of UI/UX principles and ability to implement designs with advanced CSS (Flexbox, Grid, animations, transitions).
• Experience in designing and consuming APIs.
• Knowledge of Firebase or Supabase (authentication, real-time database, cloud functions, storage).
• Familiarity with modern development workflows (Git, CI/CD, testing frameworks).

Preferred Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent practical experience).
• Experience with TypeScript in production environments.
• Knowledge of state management libraries (Redux, Zustand, Recoil, Context API).
• Understanding of security best practices for web and desktop apps.
• Familiarity with performance optimization techniques for large-scale applications.
• Basic understanding of Web Assembly and Emscripten WASM compilation pipeline.
• Experience with third-party libraries like OpenCV.js, Three.js, etc.

Soft Skills

• Strong problem-solving and analytical skills.
• Excellent communication for collaborating with designers and cross-functional teams.
• Attention to detail with a passion for building seamless user experiences.
• Ability to adapt quickly to changing priorities and emerging technologies.

Compensation & Growth

• Competitive salary based on skills and experience.
• Opportunity to work on cutting-edge web and desktop applications.
• Career growth into Senior Developer, Fullstack Architect, or Engineering Lead roles.
• Past working experience and any public work including research papers, patents, or publications with links and references