Backend Developer

Responsibilities

• Programming, implementation, and customization of technical components in applications based on the technologies used (Java, Spring Boot, Event-Sourcing with the Axon Framework, NATS as messaging broker) including interfaces, modules, and databases in compliance with specified standards.
• Development and operation of components in a cloud-native environment (Kubernetes/OpenShift, AWS) as well as provision and maintenance of Infrastructure as Code (IaC with Pulumi).
• Setup and maintenance of CI/CD pipelines (GitLab CI/CD) for automated builds, tests, and deployments.
• Ensuring observability (with Grafana, Prometheus, Tempo) including metrics, logs, and traces.
• Fixing errors from test phases as well as creating and maintaining automated tests (unit, integration, and component tests).
• Creation of technical documentation, system documentation, and delivery packages including release notes.
• Technical support for standards-compliant development according to CENELEC (EN 50126/EN 50716) including creation of required development artifacts and adherence to configuration and change management.

Requirements

We offer you:

• Must-Have: Experience in backend development using Java
• Senior (> 5 years experience)
• Must-Have: Experience in backend development using Spring Boot
• Must-Have: Cenelec Know How in software development
• 2 references
• Must-Have: Experience with Hexagonal Architecture or comparable
• Intermediate (> 3 years experience)
• Must-Have: Experience in Domain-Driven Design (DDD)
• Observability using suitable tools such as Grafana, Prometheus, and Tempo
• Intermediate (> 3 years experience) (Weighting: 20%)
• Experience with AWS
• Experience in Infrastructure as Code using Pulumi
• Senior (> 5 years experience) (Weighting: 15%)
• Experience with Event Driven Design
• Experience with Kubernetes/OpenShift
• Intermediate (> 3 years experience) (Weighting: 10%)
• Experience in backend development using NATs as messaging broker
• Senior (> 5 years experience) (Weighting: 10%)
• Experience with GitLab CI/CD
• Attractive opportunities to shorten your personal payment term
• No more time-consuming invoicing needed
• Fast, reliable fee payment
• Conclude project contracts via electronic signature

Project details

• Project Period: 01.01.2027
• 31.12.2027
• Utilization: Total PT 200
• completely remote
• Project Language German
• Start: 2027-01
• Duration: 12 Monate
• Remote: remote
• Location: Berlin, Deutschland, DE
• Languages: German