Software Developer Job at Hornetsecurity (Hannover)

Software Developer

Hornetsecurity

Location:
Germany , Hannover

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Not provided

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Job Description:

Join our innovative Security Lab, an international team solving real-world challenges in email security using modern technologies and practical solutions. Email is still the backbone of global communication—and one of the main targets for cyberattacks. Today, we protect over 1.4 billion mailboxes worldwide. As a Software Developer, you will help build and improve services that secure digital communication while continuously learning new technologies and collaborating with colleagues across Germany, Spain, France, and North Macedonia.

Job Responsibility:

Design, develop and continuously improve services related to email security
Apply pragmatic solutions to optimize the platform for performance, security, scalability, and reliability
Collaborate with cross-functional teams to design and implement new email security features
Troubleshoot and resolve platform performance and security issues with a practical, results-oriented approach
Write comprehensive unit and integration tests to ensure software quality
Contribute to platform improvements through code reviews, practical best practices, and continuous refinement
Help create and enhance tools for managing and automating email filtering and security policies, always considering real-world use cases and performance

Requirements:

Bachelor’s degree in Computer Science, Engineering, or a related field
At least 4 years in software development, including one year or more of production-level Go experience
Background in network-based applications, particularly email security or similar messaging services
Proficient with version control systems, particularly Git
Familiar with Linux/Unix environments and command-line tools
Practical problem-solving abilities and attention to detail
Able to communicate and collaborate effectively within a diverse, international team
Proficient in English, both written and spoken

Nice to have:

Familiarity with C, C++, C# or Java
Knowledge of containerization technologies like Docker and Kubernetes is a plus
Experience working with high-volume email processing or message traffic systems
Practical experience using AI-assisted development tools and workflows
Knowledge of cybersecurity practices related to email services
Familiar with automated testing frameworks and CI/CD pipelines

What we offer:

Temporary Employee Exchange Program
Work-from-home option and flexible working hours
Team events
Be-Active Bonus – subsidized gym memberships
Free parking, a GVH JobCard (Hanover), a tax-free commuting allowance (Berlin), or bike leasing
Employer contribution to the company pension plan
Referral Bonus: €1,500 for every successful candidate referral
30 days of vacation, permanent contracts, development opportunities, coffee, tea, soft drinks & fresh fruit, office dogs, no dress code

Additional Information:

Job Posted:
March 19, 2026

Employment Type:

Fulltime

Work Type:

On-site work

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