Backend Developer NavFi - Financial GPS Mobile App with Cryptocurrency Integration

About NavFi:
We're developing an innovative financial GPS mobile app with integrated cryptocurrency rewards (NavCoin). Our platform helps users navigate their finances while earning rewards through milestone achievements.

Position: Full-time Backend Developer
Project Timeline: 90-120 days for cryptocurrency development

Core Responsibilities:

API Development & Architecture
Design and implement secure RESTful APIs for mobile app
Create robust backend services for financial data processing
Develop real-time data synchronization systems
Build secure user authentication and authorization
Implement API monitoring and performance optimization
Cryptocurrency Integration
Develop NavCoin token infrastructure
Create secure wallet integration systems
Implement milestone-based reward distribution
Design transaction processing systems
Build blockchain interaction layers
Financial Systems
Develop secure financial data processing systems
Create achievement verification systems
Implement real-time financial tracking
Build automated reward distribution mechanisms
Design data analytics backend
Technical Requirements:

5+ years backend development experience
Strong expertise in:
Node.js/Python for backend services
Blockchain development (Solidity, Web3)
Database design (SQL and NoSQL)
Cloud infrastructure (AWS/Azure/GCP)
Microservices architecture
Docker and Kubernetes
API security protocols
Security Requirements:

Experience with:
Financial data encryption
Secure token management
OAuth and JWT implementation
Rate limiting and DDoS protection
Security audit compliance
Data privacy regulations
Cryptocurrency Specific Skills:

Smart contract development
Token economics implementation
Blockchain integration
Wallet API development
Transaction processing
Gas optimization
Database Skills:

Database architecture design
Performance optimization
Data modeling
Backup and recovery
Scaling solutions