Senior Backend Developer

Senior Backend Developer (Java Spring Boot & PHP Symfony)

Location: Germany (Remote)

Employment Type: Full-Time Contract (6–9 Months)

Contract-to-Permanent: Potential to convert to permanent employment

Language Requirements: Fluent English and minimum German B2 level

Experience: 5–7 Years

About the Role

We are seeking an experienced Senior Backend Developer with strong expertise in Java Spring Boot and PHP Symfony to join a fully remote team supporting enterprise-scale applications. This is an initial 6–9 month contract with a strong possibility of extension or permanent conversion for the right candidate.

The ideal candidate will have a solid background in backend development, cloud-native architectures, Docker-based deployments, CI/CD automation, and Google Cloud Platform (GCP).

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java Spring Boot and PHP Symfony.
• Build and enhance RESTful APIs and microservices architectures.
• Develop and deploy cloud-native solutions on Google Cloud Platform (GCP).
• Create and maintain Dockerized application environments.
• Design, implement, and optimize CI/CD pipelines for automated deployments.
• Collaborate with product managers, frontend developers, DevOps engineers, and QA teams.
• Ensure high levels of performance, security, scalability, and reliability.
• Conduct code reviews and promote engineering best practices.
• Troubleshoot and resolve production issues.
• Contribute to architectural decisions and technical roadmap planning.
• Mentor junior developers where required.

Required Skills & Experience

Core Technologies

• 5–7 years of professional backend development experience.
• Strong expertise in Java (8/11/17+) and Spring Boot.
• Strong experience with PHP 7/8 and Symfony Framework.
• Experience designing and consuming RESTful APIs.
• Strong understanding of OOP, SOLID principles, and design patterns.
• Experience building microservices architectures.

Cloud & DevOps

• Hands-on experience with Google Cloud Platform (GCP), including:
• Cloud Run
• GKE (Google Kubernetes Engine)
• Cloud SQL
• Pub/Sub
• Cloud Storage
• Secret Manager
• Strong experience with Docker and containerized deployments.
• Experience building and maintaining CI/CD pipelines using:
• GitHub Actions
• GitLab CI/CD
• Jenkins
• Google Cloud Build
• Familiarity with Kubernetes and container orchestration.

Database & Messaging

• Strong experience with MySQL and/or PostgreSQL.
• Experience with database performance tuning and optimization.
• Experience with Redis caching solutions.
• Experience with Kafka, RabbitMQ, or similar messaging technologies.

Additional Skills

• Strong Git version control experience.
• Linux administration and troubleshooting skills.
• Experience with API documentation tools such as Swagger/OpenAPI.
• Familiarity with monitoring and logging solutions.

Language Requirements

• Fluent English (written and spoken) – mandatory
• German language skills at B2 level or above – mandatory