Company Overview

2b.in is an early‑stage technology venture focused on building, supporting, and scaling AI‑first, product‑driven businesses, including B2B SaaS platforms and enterprise solutions. The company operates at the intersection of AI, software engineering, and innovative product development, transforming ideas into high‑growth technology ventures with intelligent, scalable solutions. It combines strategic investment, technical expertise, and mentorship to drive real‑world business impact through cutting‑edge AI and enterprise platforms.

About The Role

We are building a high-scale, real-time consumer product from scratch. This role requires strong fundamentals in

JavaScript and React, with exposure to performance optimization and scalable frontend architecture.

This is not a template-based UI role. You will work closely with backend, product, and infra teams to design performant, production-grade systems.

What You’ll Do

• Build scalable, production-ready React.js applications

• Develop real-time features using WebSockets

• Optimize rendering performance and reduce unnecessary re-renders

• Handle large datasets efficiently (virtualization, pagination, memoization)

• Work closely with backend teams on API contracts

• Implement clean state management architecture

• Write reusable, testable components

• Participate in whiteboarding and system discussions

Must Have Skills

• 2–3 years of hands-on experience in React.js

• Strong JavaScript fundamentals (closures, event loop, async behavior)

• Experience with modern React (Hooks, Context API)

• Good understanding of state management (Redux / Zustand / Recoil)

• Experience working with REST APIs

• Performance optimization experience (memorization, lazy loading, code splitting)

• Understanding of component lifecycle and re-render behavior

• Git proficiency

Good to Have (Strong Advantage)

• Experience with Web Sockets / real-time apps

• Experience handling large lists (10k+ records)

• Knowledge of frontend architecture patterns

• Familiarity with TypeScript

• Basic understanding of time complexity (O(1), O(n))

• Experience working in product-based company

• Exposure to scalable B2C applications

What We Value

• Strong problem-solving ability

• Ownership mindset

• Ability to debug performance bottlenecks

• Curiosity to learn deeply (not just use libraries)

• Comfort working in fast-paced startup environment

Why Join Us?

• Work directly with senior engineers and founders

• Build infra from scratch

• Exposure to real-time scalable architecture

• High ownership and growth potential

• Startup speed + product depth