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# Senior Backend Engineer

- **Company:** Hornetsecurity GmbH
- **Location:** Hannover, Germany (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Unix, Cyber Security, Linux, DevOps, Distributed Systems, Elasticsearch, Python (Programming Language), Redis, Ansible, SQL Databases, Webmail, Backend, AngularJS, Non-relational Database
- **Published:** November 12, 2026
- **Apply:** https://www.adzuna.de/details/5962108074

## About the Role

* 5+ years of professional experience as a Software Developer, with a strong focus on backend development.
 * Strong Python experience, experience with Java or Go is a plus.
 * Experience designing, operating, and optimizing relational or non-relational databases. Experience with Elasticsearch, SQL databases, or Redis is especially relevant.
 * Comfortable working in UNIX-based environments, especially Linux.
 * Strong experience building and maintaining scalable, high-quality software within complex, distributed systems.
 * Strong analytical skills, structured thinking, and a high sense of ownership.
 * Fluent in spoken and written English.

Nice-to-haves

Experience in any of the following areas would be useful, but you don't need to tick every box.

 * Experience with designing and maintaining systems hosted on-premises.
 * Basic DevOps skills and experience with Ansible.
 * Experience in cybersecurity or email software.
 * Familiarity with AI-assisted or agent-based development workflows.
 * Basic Angular knowledge.

## Description

* Take technical ownership of existing and new applications or services within our cybersecurity product ecosystem.
 * Design, develop, and maintain high-quality, scalable, and maintainable software solutions.
 * Lead and contribute to architectural decisions and help shape long-term technical direction.
 * Collaborate cross-functionally with other developers, product management, system engineers, UX/UI, and QA teams to deliver end-to-end solutions.
 * Mentor and support Junior Developers, fostering best practices and continuous improvement.
 * Work across multiple products, contributing to new features, improvements, and long-term maintenance.