Realtime Mobile Application Developer, Fintech (India)

We’re Hiring: Senior Flutter Developers (3–8 Years)

Company: First Demat

Location: Mumbai / WFH

Open Positions: 4

Joining: Immediate

Compensation: Competitive Salary + ESOPs

About First Demat

First Demat is building a next-generation stock trading and investment platform designed for serious traders and long-term investors.

Our platform focuses on real-time market data, ultra-low latency execution, portfolio analytics, and AI-powered insights.

Role Overview

We are hiring Senior Flutter Developers (3–8 years) to join our core engineering team and build high-performance, real-time trading applications for Android, iOS, and Web.

This role is for engineers who have hands-on experience building production-grade Flutter apps with real-time data and performance-critical UI.

Key Responsibilities

• Design, develop, and maintain high-performance Flutter applications
• Build real-time features using WebSockets (market feeds, trades, alerts)
• Integrate REST APIs and high-frequency data streams
• Optimize applications for low latency and smooth UI rendering
• Handle large data volumes with continuous UI updates
• Collaborate closely with backend, product, and design teams
• Review code, enforce best practices, and mentor junior developers

Required Skills & Experience

• 3–8 years of professional Flutter development experience
• Strong proficiency in Flutter and Dart
• Proven experience with WebSockets and real-time data streams
• Expertise in state management (BLoC, Riverpod, Provider)
• Experience handling high-frequency UI updates and large datasets
• Strong knowledge of performance optimization and memory management
• Experience debugging and maintaining production applications

Preferred / Nice to Have

• Fintech, stock trading, brokerage, or WealthTech experience
• Apps published on Play Store / App Store
• Familiarity with AWS, GCP, or Azure
• Experience with GraphQL, microservices, or CI/CD pipelines

Why Join First Demat

• Build a real-time trading platform from scratch
• Competitive salary with ESOP opportunities
• Work directly with the founding engineering team
• High ownership and impact as part of the early core team
• Prospect to solve complex, performance-critical engineering problems

Important Note for Applicants

Please apply only if you have worked on real-time or WebSocket-based Flutter applications in production.

Profiles without relevant Flutter experience may not be considered.

Application Instructions

While applying, please include:

• Your total Flutter experience
• One real-time / high-performance Flutter project you’ve worked on
• Play Store / App Store link or GitHub profile (if available)