Backend Developer (Java/Kotlin)
Developing enterprise-grade backend services in Java/Kotlin with a focus on reliability and scalability
Backend Developer (Java/Kotlin) ist eine Rolle in der Familie Backend Engineering. Es umfasst 74 Fähigkeiten über 5 Stufen (von Junior bis Principal). 217 Fähigkeiten sind obligatorisch. Schlüsselbereiche: Programming Fundamentals, Backend Development, Database Management.
Technologie-Stack
Fokus nach Stufe
Building REST endpoints with Spring Boot. Writing unit tests (JUnit/Mockito). Working with JPA/Hibernate. Fixing bugs. Learning Spring ecosystem.
Designing and building microservices. Setting up Spring Security. Optimizing JPA queries. Working with message brokers. Code review. Migrating from Java to Kotlin.
Designing distributed systems. JVM tuning (GC, memory). Reactive programming (WebFlux). Building libraries and starters. Event-driven architecture design.
Domain system architecture. Spring Cloud microservices. Standards for Java/Kotlin development. Coordination with DevOps/Platform. Migrating legacy monoliths.
Enterprise architecture. Choosing JVM vs non-JVM for new systems. Modernization strategy. Company standards. Vendor management.
Kompetenzmatrix
74 Fähigkeiten × 5 Stufen. Klicken Sie auf eine Zelle für Details.
AI-Assisted Development
4 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| GitHub Copilot | A | W | A | E | E |
| Cursor IDE | A | W | A | A | — |
| ChatGPT / Claude | A | W | A | E | E |
| Prompt Engineering for Code | A | W | A | E | — |
API & Integration
8 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| REST API Design | A | W | A | E | E |
| GraphQL Design | A | W | A | E | E |
| WebSocket API Design | A | W | A | E | E |
| gRPC & Protocol Buffers | A | W | A | E | E |
| gRPC & Protocol Buffers | A | W | A | E | E |
| API Versioning Strategies | A | W | A | E | E |
| API Documentation | A | W | A | E | E |
| Rate Limiting & Throttling | A | W | A | E | E |
Architecture & System Design
6 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| System Design Fundamentals | A | W | A | E | E |
| Microservices Decomposition | — | A | W | A | — |
| Clean Architecture | A | W | A | E | E |
| CQRS | A | W | A | E | E |
| Event-Driven Architecture | A | W | A | E | E |
| DDD Tactical Patterns | — | A | W | A | — |
Backend Development
8 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Python Web Frameworks | A | W | A | E | E |
| Java Spring Ecosystem | A | W | A | E | E |
| Apache Kafka | A | W | A | E | E |
| RabbitMQ | A | W | A | E | E |
| Message Broker Patterns | A | W | A | E | E |
| Redis | A | W | A | E | E |
| Caching Strategies | A | W | A | E | E |
| Elasticsearch / OpenSearch | A | W | A | E | E |
Cloud & Infrastructure
6 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Docker | A | W | A | E | E |
| Container Security Scanning | A | W | A | E | E |
| Kubernetes Core | A | W | A | E | E |
| Terraform | A | W | A | E | — |
| AWS | A | W | A | E | E |
| Network Fundamentals | A | W | A | — | — |
Database Management
9 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| PostgreSQL | A | W | A | E | E |
| MySQL / MariaDB | A | W | A | E | E |
| Database Indexing | A | W | A | E | E |
| Query Optimization | A | W | A | E | E |
| Transactions & Concurrency | A | W | A | E | E |
| Connection Pooling | A | W | A | E | E |
| Database Sharding | A | W | A | E | E |
| Data Modeling & Schema Design | A | W | A | E | E |
| Database Migrations | A | W | A | E | E |
DevOps & CI/CD
1 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| GitHub Actions / GitLab CI | A | W | A | E | E |
Observability & Monitoring
6 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Structured Logging | A | W | A | E | E |
| ELK Stack | A | W | A | E | E |
| Prometheus & Grafana | A | W | A | E | E |
| OpenTelemetry | A | W | A | E | E |
| SLI / SLO / SLA | A | W | A | — | — |
| On-Call Management | A | W | A | E | E |
Performance Engineering
4 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| CPU Profiling | A | W | A | E | E |
| Memory Profiling | A | W | A | E | E |
| Latency Optimization | A | W | A | E | E |
| Performance Budgets | A | W | A | E | E |
Programming Fundamentals
10 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Algorithms & Complexity | A | W | A | E | E |
| Data Structures | A | W | A | E | E |
| OOP & SOLID Principles | A | W | A | E | E |
| Design Patterns | A | W | A | E | E |
| Multithreading | A | W | A | E | E |
| Async Programming | A | W | A | E | E |
| Code Quality & Refactoring | A | W | A | E | E |
| Type Safety & Type Systems | A | W | A | E | E |
| Generics & Parametric Polymorphism | A | W | A | E | E |
| Memory Management | A | W | A | E | E |
Security
4 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| OWASP & Application Security | A | W | A | E | E |
| Secure Coding Practices | A | W | A | E | E |
| Secrets Management | A | W | A | E | E |
| JWT / OAuth2 / OIDC | A | W | A | E | E |
Testing & QA
5 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| TDD & BDD | A | W | A | E | E |
| Unit Testing | A | W | A | E | E |
| Integration Testing | A | W | A | E | E |
| E2E Testing | A | W | A | E | E |
| TestContainers | A | W | A | E | E |
Version Control & Collaboration
3 Fähigkeiten| Faehigkeiten | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Git Advanced | A | W | A | E | E |
| Code Review | A | W | A | E | E |
| Documentation as Code | A | W | A | E | E |
Häufig gestellte Fragen
Welche Fähigkeiten werden für die Rolle Backend Developer (Java/Kotlin) benötigt?
Die Rolle Backend Developer (Java/Kotlin) erfordert 74 Fähigkeiten, davon 217 obligatorisch. Die Fähigkeiten verteilen sich auf 5 Stufen: von Junior bis Principal. Vollständige Matrix ansehen.
Wie steigt man in der Rolle Backend Developer (Java/Kotlin) auf die nächste Stufe auf?
Nutzen Sie den Grade-Rechner, um Ihre aktuelle Stufe einzuschätzen und personalisierte Empfehlungen zu erhalten.
Welcher Technologie-Stack wird in der Rolle Backend Developer (Java/Kotlin) verwendet?
Der Stack umfasst 5 Technologien auf verschiedenen Stufen. Java 21+/Kotlin 1.9+, Spring Boot 3.2+, PostgreSQL, JPA/Hibernate, Maven/Gradle, JUnit 5, Docker, Java 21+/Kotlin 1.9+, Spring Boot 3.2+, Spring Security, PostgreSQL/Redis, Kafka basics, Flyway, TestContainers, Docker Compose, CI/CD, Java 21+ (Virtual Threads)/Kotlin, Spring WebFlux, PostgreSQL/Redis/MongoDB, Kubernetes, Kafka/RabbitMQ, Micrometer/Prometheus, JFR, GraalVM native image...
Wie definiert die Community die Anforderungen für die Rolle Backend Developer (Java/Kotlin)?
Die Anforderungen werden von der Community durch ein Vorschlagssystem gestaltet. Jedes Mitglied kann Änderungen vorschlagen, die durch Abstimmung und Expertenprüfung gehen.