Back End Developer

Job Description

As a Backend Engineer, you will play a key role in designing, developing, and maintaining scalable backend systems that power our platforms. You will work closely with cross-functional teams—including Product Managers, Frontend Engineers, and DevOps—to deliver high-quality, reliable, and performance-driven solutions.

Key Responsibilities

• Design, develop, and maintain backend systems using Java and Kotlin.
• Collaborate with Product Managers, Frontend Engineers, and stakeholders to analyze requirements and translate them into technical solutions.
• Ensure scalability, reliability, security, and performance of backend services.
• Implement best practices for code quality, testing, and deployment.
• Conduct code reviews and provide technical guidance or mentorship to junior engineers.
• Work closely with DevOps teams to ensure smooth CI/CD, deployment, and monitoring processes.
• Stay up to date with emerging technologies and industry best practices to continuously improve system architecture and performance.

Required Skills and Experience

• Proven experience as a Backend Engineer, with strong hands-on skills in Java and Kotlin.
• Solid understanding of Object-Oriented Programming (OOP) principles and design patterns.
• Experience in RESTful API design and development.
• Hands-on experience with microservices architecture.
• Familiarity with containerization technologies such as Docker and Kubernetes.
• Strong knowledge of relational databases and SQL.
• Experience with version control systems, especially Git.
• Understanding of CI/CD pipelines and tools.
• Strong problem-solving skills and attention to detail.
• Good communication skills in both written and spoken English.

Preferred Qualifications

• Experience in e-commerce platforms, especially B2B environments.
• Experience with cloud platforms such as AWS or Google Cloud Platform (GCP).
• Knowledge of NoSQL databases.
• Experience with message brokers such as Kafka or RabbitMQ.
• Familiarity with Agile/Scrum methodologies and tools like JIRA.

Working Location

• Hybrid model:
• 2–3 days per week onsite in Berlin
• Remaining days remote