Senior Flutter Developer – Real-Time / Trading Systems
First Demat
5 - 10 years
Mumbai
Posted: 02/03/2026
Job Description
Were Hiring: Senior Flutter Developers (38 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 (38 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
- 38 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
- Opportunity 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 youve worked on
- Play Store / App Store link or GitHub profile (if available)
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