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# Principal Engineer * Backend, Java

- **Company:** Engel Gmbh
- **Location:** Hamburg, Germany
- **Experience:** Expert
- **Salary:** €70,000.0 - €90,000.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Java (Programming Language), Databases, Data Structures, Relational Databases, PostgreSQL, Standard Sql, Google Cloud, Spring-boot, Database Performance, Backend
- **Published:** August 16, 2026
- **Apply:** https://www.adzuna.de/details/5843273216

## About the Role

* Several years of proven technical leadership experience, or an experienced Senior Backend Engineer (f/m/d)*.
 * Profound experience in writing clean, maintainable code in Java, ideally using the Spring Boot framework.
 * Good knowledge of data structures, deep understanding of relational database design principles & knowledge of SQL (PostgreSQL preferred).
 * Understanding of modern cloud-based backend architectures and technologies (GCP preferred).
 * Proactive problem solver with a strong ownership mindset and a drive to take cross-team initiatives from concept to production.
 * Excellent written and spoken communication skills in English.

## Description

To support our team at the Hamburg headquarters, we are looking for you as a full-time (40 hours) Principal Engineer (f/m/d)* Backend, Java with immediate effect. As Principal Engineer (f/m/d)* Backend, Java, you will be one of the key technical experts for our E&V Agent Platform. Your primary focus will be the design and implementation of scalable Java backend services, with particular responsibility for database performance, transaction management and data-intensive processing.
Tasks that let you grow

 * Act as a key technical expert for the E&V Agent Platform, focusing on designing and implementing scalable Java backend services for data-intensive workloads.
 * Work hands-on with our engineering teams to identify database bottlenecks, optimize complex search queries and continuously evolve our PostgreSQL ecosystem.
 * Establish robust engineering patterns for high-volume transactional workloads, reducing lock contention and designing reliable batch and asynchronous processing workflows.
 * Build consistent architectural principles, tooling, and observability across teams to detect database risks early and ensure systems are performant by default.
 * Evaluate modern database technologies within the Google Cloud ecosystem to ensure long-term architecture resilience and scalability.
 * Combine deep backend engineering expertise with cross-team technical guidance, actively resolving critical incidents and conducting architecture reviews to upskill engineering teams.


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