Backend Engineering

Backend Developer (C#/.NET)

Developing enterprise applications and microservices on the .NET platform

Learn more about role All roles
72 skills
353 requirements
135 mandatory
13 domains
Awareness 70 Working 114 Advanced 139 Expert 30
Level:
All domains Programming Fundamentals 10 Backend Development 8 Database Management 9 API & Integration 8 Cloud & Infrastructure 6 DevOps & CI/CD 1 Testing & QA 5 Security 4 AI-Assisted Development 4 Architecture & System Design 6 Observability & Monitoring 5 Version Control & Collaboration 3 Performance Engineering 3
Profiles: Awareness Working Advanced Expert -- Click level to expand, click requirement for details and voting

Programming Fundamentals

10 skills · 50 requirements
Skill Junior Middle Senior Lead Principal
Algorithms & Data Structures
Algorithms & Complexity Awareness Working Advanced Advanced Expert
Data Structures Awareness Working Advanced Advanced Expert
OOP & Design Patterns
OOP & SOLID Principles Awareness Working Advanced Advanced Expert
Design Patterns Awareness Working Advanced Advanced Expert
Concurrency & Parallelism
Multithreading Awareness Working Advanced Advanced Expert
Async Programming Awareness Working Advanced Advanced Expert
Clean Code & Refactoring
Code Quality & Refactoring Awareness Working Advanced Advanced Expert
Type Systems
Type Safety & Type Systems Awareness Working Advanced Advanced Expert
Generics & Parametric Polymorphism Awareness Working Advanced Advanced Expert
Memory Management
Memory Management Awareness Working Working Advanced Advanced

Backend Development

8 skills · 40 requirements
Skill Junior Middle Senior Lead Principal
Web Frameworks
Python Web Frameworks Awareness Working Working Advanced Advanced
ASP.NET Core Awareness Working Advanced Advanced Expert
Message Queues & Event Streaming
Apache Kafka Awareness Working Advanced Advanced Expert
RabbitMQ Awareness Working Advanced Advanced Expert
Message Broker Patterns Awareness Working Working Advanced Advanced
Caching
Redis Awareness Working Advanced Advanced Expert
Caching Strategies Awareness Working Advanced Advanced Expert
Search Engines
Elasticsearch / OpenSearch Awareness Working Advanced Advanced Expert

Database Management

9 skills · 45 requirements
Skill Junior Middle Senior Lead Principal
Relational Databases
PostgreSQL Awareness Working Advanced Advanced Expert
MySQL / MariaDB Awareness Working Advanced Advanced Expert
Database Optimization
Database Indexing Awareness Working Advanced Advanced Expert
Query Optimization Awareness Working Advanced Advanced Expert
Transactions & Concurrency Awareness Working Advanced Advanced Expert
Connection Pooling Awareness Working Working Advanced Advanced
Database Sharding Awareness Working Working Advanced Advanced
Data Modeling
Data Modeling & Schema Design Awareness Working Advanced Advanced Expert
Database Migrations Awareness Working Advanced Advanced Expert

API & Integration

8 skills · 40 requirements
Skill Junior Middle Senior Lead Principal
REST API
REST API Design Awareness Working Advanced Advanced Expert
GraphQL
GraphQL Design Awareness Working Advanced Advanced Expert
API Protocols
WebSocket API Design Awareness Working Working Advanced Advanced
gRPC & Protocol Buffers Awareness Working Working Advanced Advanced
gRPC
gRPC & Protocol Buffers Awareness Working Working Advanced Advanced
API Management
API Versioning Strategies Awareness Working Advanced Advanced Expert
API Documentation Awareness Working Advanced Advanced Expert
Rate Limiting & Throttling Awareness Working Working Advanced Advanced

Cloud & Infrastructure

6 skills · 29 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 Advanced Advanced —
Cloud Providers
AWS Awareness Working Working Advanced Advanced
Microsoft Azure Awareness Working Advanced Advanced Expert
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

5 skills · 25 requirements
Skill Junior Middle Senior Lead Principal
Test Strategy
TDD & BDD Awareness Working Working Advanced Expert
Unit Testing
Unit Testing Awareness Working Working Advanced Advanced
Integration Testing
Integration Testing Awareness Working Working Advanced Advanced
E2E Testing
E2E Testing Awareness Working Working Advanced Advanced
Test Infrastructure
TestContainers Awareness Working Advanced Advanced Expert

Security

4 skills · 20 requirements
Skill Junior Middle Senior Lead Principal
Application Security
OWASP & Application Security Awareness Working Working Advanced Advanced
Secure Coding Practices Awareness Working Working Advanced Advanced
Infrastructure Security
Secrets Management Awareness Working Working Advanced Advanced
Authentication & Authorization
JWT / OAuth2 / OIDC Awareness Working Working Advanced Advanced

AI-Assisted Development

4 skills · 18 requirements
Skill Junior Middle Senior Lead Principal
AI Coding Assistants
GitHub Copilot Awareness Working Working Advanced Advanced
Cursor IDE Awareness Working Working Advanced —
ChatGPT / Claude Awareness Working Working Advanced Advanced
Prompt Engineering
Prompt Engineering for Code Awareness Working Working Advanced —

Architecture & System Design

6 skills · 26 requirements
Skill Junior Middle Senior Lead Principal
System Design
System Design Fundamentals Awareness Working Working Advanced Advanced
Microservices Patterns
Microservices Decomposition — Working Advanced Advanced —
Architecture Patterns
Clean Architecture Awareness Working Working Advanced Expert
Event-Driven Architecture
CQRS Awareness Working Working Advanced Advanced
Event-Driven Architecture Awareness Working Working Advanced Advanced
Domain-Driven Design
DDD Tactical Patterns — Working Working Advanced —

Observability & Monitoring

5 skills · 25 requirements
Skill Junior Middle Senior Lead Principal
Logging
Structured Logging Awareness Working Working Advanced Advanced
ELK Stack Awareness Working Working Advanced Advanced
Metrics & Monitoring
Prometheus & Grafana Awareness Working Working Advanced Advanced
Distributed Tracing
OpenTelemetry Awareness Working Working Advanced Advanced
Alerting & On-Call
SLI / SLO / SLA Awareness Working Working Advanced Advanced

Version Control & Collaboration

3 skills · 15 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
Collaboration Tools
Documentation as Code Awareness Working Working Advanced Advanced

Performance Engineering

3 skills · 15 requirements
Skill Junior Middle Senior Lead Principal
Profiling
CPU Profiling Awareness Working Working Advanced Advanced
Optimization
Latency Optimization Awareness Working Working Advanced Advanced
Benchmarking
Performance Budgets Awareness Working Working Advanced Advanced
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