Mobile Development

React Native Developer

Cross-platform mobile app development with React Native for iOS and Android

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51 skills

255 requirements

101 mandatory

15 domains

Awareness 51 Working 80 Advanced 100 Expert 24

Level:

All domains Programming Fundamentals 8 Backend Development 1 Frontend Development 4 Mobile Development 7 Database Management 2 API & Integration 4 Cloud & Infrastructure 5 DevOps & CI/CD 1 Testing & QA 4 Security 3 AI-Assisted Development 4 Architecture & System Design 2 Observability & Monitoring 3 Version Control & Collaboration 2 Performance Engineering 1

Profiles: Awareness Working Advanced Expert -- Click level to expand, click requirement for details and voting

Programming Fundamentals

8 skills · 40 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Algorithms & Data Structures
Algorithms & Complexity	Awareness	Working	Advanced	Advanced	Expert
Data Structures	Awareness	Working	Working	Advanced	Advanced
OOP & Design Patterns
OOP & SOLID Principles	Awareness	Working	Working	Advanced	Advanced
Design Patterns	Awareness	Working	Working	Advanced	Advanced
Concurrency & Parallelism
Multithreading	Awareness	Working	Working	Advanced	Advanced
Async Programming	Awareness	Working	Working	Advanced	Expert
Clean Code & Refactoring
Code Quality & Refactoring	Awareness	Working	Working	Advanced	Expert
Type Systems
Type Safety & Type Systems	Awareness	Working	Advanced	Advanced	Expert

Backend Development

1 skills · 5 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Caching
Redis	Awareness	Working	Working	Advanced	Advanced

Frontend Development

4 skills · 20 requirements

Skill	Junior	Middle	Senior	Lead	Principal
React Ecosystem
React Core	Awareness	Working	Advanced	Advanced	Expert
Web Standards & APIs
Web Accessibility	Awareness	Working	Advanced	Advanced	Expert
State Management
State Management	Awareness	Working	Advanced	Advanced	Expert
Data Fetching	Awareness	Working	Advanced	Advanced	Expert

Mobile Development

7 skills · 35 requirements

Skill	Junior	Middle	Senior	Lead	Principal
iOS Development
Core Data & SwiftData	Awareness	Working	Advanced	Advanced	Expert
Android Development
Navigation & Deep Links	Awareness	Working	Advanced	Advanced	Expert
Cross-Platform Mobile
React Native	Awareness	Working	Advanced	Advanced	Expert
General Mobile Practices
Mobile CI/CD	Awareness	Working	Advanced	Advanced	Expert
Mobile Security	Awareness	Working	Advanced	Advanced	Expert
Mobile Performance	Awareness	Working	Advanced	Advanced	Expert
App Store Optimization (ASO)	Awareness	Working	Advanced	Advanced	Expert

Database Management

2 skills · 10 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Relational Databases
PostgreSQL	Awareness	Working	Working	Advanced	Advanced
Database Optimization
Database Indexing	Awareness	Working	Working	Advanced	Advanced

API & Integration

4 skills · 20 requirements

Skill	Junior	Middle	Senior	Lead	Principal
REST API
REST API Design	Awareness	Working	Working	Advanced	Advanced
GraphQL
GraphQL Design	Awareness	Working	Advanced	Advanced	Expert
API Protocols
WebSocket API Design	Awareness	Working	Advanced	Advanced	Expert
API Management
API Documentation	Awareness	Working	Advanced	Advanced	Expert

Cloud & Infrastructure

5 skills · 25 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Containerization
Docker	Awareness	Working	Working	Advanced	Advanced
Kubernetes & Orchestration
Kubernetes Core	Awareness	Working	Working	Advanced	Advanced
Infrastructure as Code
Terraform	Awareness	Working	Working	Advanced	Advanced
Cloud Providers
AWS	Awareness	Working	Working	Advanced	Advanced
Networking
Network Fundamentals	Awareness	Working	Working	Advanced	Advanced

DevOps & CI/CD

1 skills · 5 requirements

Skill	Junior	Middle	Senior	Lead	Principal
CI/CD
GitHub Actions / GitLab CI	Awareness	Working	Working	Advanced	Advanced

Testing & QA

4 skills · 20 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Unit Testing
Unit Testing	Awareness	Working	Working	Advanced	Advanced
Integration Testing
Integration Testing	Awareness	Working	Working	Advanced	Advanced
E2E Testing
E2E Testing	Awareness	Working	Advanced	Advanced	Expert
Specialized Testing
Mobile Testing	Awareness	Working	Advanced	Advanced	Expert

Security

3 skills · 15 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Application Security
OWASP & Application Security	Awareness	Working	Working	Advanced	Advanced
Secure Coding Practices	Awareness	Working	Advanced	Advanced	Expert
Authentication & Authorization
JWT / OAuth2 / OIDC	Awareness	Working	Advanced	Advanced	Expert

AI-Assisted Development

4 skills · 20 requirements

Skill	Junior	Middle	Senior	Lead	Principal
AI Coding Assistants
GitHub Copilot	Awareness	Working	Working	Advanced	Advanced
Cursor IDE	Awareness	Working	Working	Advanced	Advanced
ChatGPT / Claude	Awareness	Working	Working	Advanced	Advanced
Prompt Engineering
Prompt Engineering for Code	Awareness	Working	Working	Advanced	Advanced

Architecture & System Design

2 skills · 10 requirements

Skill	Junior	Middle	Senior	Lead	Principal
System Design
System Design Fundamentals	Awareness	Working	Working	Advanced	Advanced
Architecture Patterns
Clean Architecture	Awareness	Working	Advanced	Advanced	Expert

Observability & Monitoring

3 skills · 15 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Logging
Structured Logging	Awareness	Working	Working	Advanced	Advanced
Metrics & Monitoring
Prometheus & Grafana	Awareness	Working	Working	Advanced	Advanced
Distributed Tracing
OpenTelemetry	Awareness	Working	Working	Advanced	Advanced

Version Control & Collaboration

2 skills · 10 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Git & Workflows
Git Advanced	Awareness	Working	Working	Advanced	Advanced
Code Review
Code Review	Awareness	Working	Working	Advanced	Advanced

Performance Engineering

1 skills · 5 requirements

Skill	Junior	Middle	Senior	Lead	Principal
Benchmarking
Performance Budgets	Awareness	Working	Advanced	Advanced	Expert

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