Systems Developer - Email Security (80-100%)
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- Zürich
- Unbefristet
- Vollzeit
- Developing filtering plugins, internal tools, and management infrastructure
- Integrating third-party products (open source such as Postfix, or OEM components like proprietary malware engines) into our Linux-based and cloud stacks
- Building and maintaining public APIs for email processing and configuration
- Extending monitoring, alerting, and log aggregation capabilities
- Troubleshooting and debugging production systems
- Life-cycle management and optimization of existing deployments, including cloud-native environments
We value both specializations. This role simply requires solid foundations of both areas in one person.Required Qualifications
- Higher education (ETH, university, FH) in Computer Science or a related field
- 2+ years of professional experience in a relevant role
- Proficiency in software development with scripting languages (e.g., Bash, Perl, Python) and a concurrent compiled language (e.g., Go, C++, C#, Rust)
- Experience with Linux or another UNIX-based operating system, including comfort working at the system level
- Knowledge of email protocols and security standards: SMTP, TLS, DNS, DKIM, DMARC
- Familiarity with software and system testing practices
- Understanding of monitoring and observability principles
- Fluent in English
- Clear communication skills and ability to work both in a team and independently
- Familiarity with proprietary email backends such as Microsoft 365
- Experience using LLM-assisted development tools
- Knowledge of container and cloud technologies (Kubernetes)
- Experience with general network protocols (TCP/IP, HTTP)