Full-Stack Developer

1 day ago

Mumbai, Maharashtra, India LvlUp Labz Full time ₹ 6,00,000 - ₹ 18,00,000 per year

Company Description

LvlUp Labz, a Mumbai-based software development agency, partners with innovative businesses to build custom applications, platforms, and systems that drive real results. The company specializes in creating custom web and mobile applications, fintech solutions, SaaS platforms, and API development. Serving industries such as fintech, e-commerce, iGaming, and healthcare technology, LvlUp Labz is expanding its engineering team to work on exciting projects, including a real-time betting exchange platform for an international iGaming client, alongside fintech applications and SaaS solutions.

Role Description

This is a full-time on-site role for a Full-Stack Developer (Frontend Focus) located in Mumbai. You'll build the iGaming user interface—creating complex, real-time React components that display live odds, handle bet placement, and manage thousands of updates per second. While your primary focus is frontend development, you'll write APIs when needed and collaborate closely with backend developers.

What You'll Do

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Build iGaming UI components (live odds display, markets, real-time updates)

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Implement real-time features using with optimistic updates and live data streaming

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Develop responsive, high-performance React applications handling thousands of concurrent updates

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Integrate with backend APIs and manage complex application state (Redux Toolkit)

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Write APIs for frontend needs and understand backend integration contracts

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Optimize frontend performance (virtualization, memoization, lazy loading, code splitting)

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Collaborate with designers to implement pixel-perfect, responsive betting interfaces

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Participate in code reviews and maintain high code quality standards

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Stay up-to-date with best practices and modern frontend trends

Work Style

We embrace "Vibe Coding"—using AI coding tools (Cursor, Claude Code, GitHub Copilot) daily to accelerate development and focus on solving interesting UI/UX challenges rather than boilerplate code. You'll ship features faster and spend more time on creative problem-solving.

Qualifications

Required:

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2-4 years of professional experience in full-stack development

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Strong expertise in React (hooks, context, advanced component patterns)

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Proficiency in 14/15 (App Router, Server Components, SSR/SSG)

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Real-time UI development experience (WebSocket integration, live data handling)

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TypeScript proficiency and modern JavaScript (ES6+)

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State management experience (Redux Toolkit, Zustand, or Context API)

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fundamentals (can write REST APIs and understand backend integration)

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Experience with responsive design and CSS frameworks (Tailwind CSS preferred)

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Excellent problem-solving and communication skills

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

Nice to Have:

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Trading platform, fintech UI experience

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Performance optimization for high-frequency data updates

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Experience with Radix UI, shadcn/ui, or similar component libraries

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Real-time charting or data visualization libraries

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Understanding of betting/gaming UX patterns and user flows

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React Query or SWR for efficient data fetching

Our Tech Stack

Frontend:
React 19, 15, TypeScript, Redux Toolkit, , Tailwind CSS, Radix UI

Backend:
, Express, Prisma ORM, PostgreSQL, Redis, Kafka

Infrastructure:
Docker, AWS, Nginx

  • We're reviewing applications daily and moving fast on qualified candidates.

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