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Description

Company Overview

Threema GmbH | https://threema.ch/ Leading Swiss app developer specializing in secure chat solutions since 2012. Our open-source messenger serves over 10 million users and has undergone multiple independent audits.

Position Details

• Location: Pfäffikon SZ, Switzerland (Greater Zurich area)
• Type: Full-time (80-100%)
• Start Date: By agreement, earliest February 1, 2025
• Annual Salary: CHF 90,000 – 110,000

Key Responsibilities

• Develop and enhance scalable, high-performance core messaging services using Rust
• Design distributed system architectures for message routing
• Implement cryptographic protocols for network communication
• Conduct code reviews within the development team

Required Qualifications

• Strong focus on security and privacy
• Minimum 2 years of practical experience with Rust
• Experience in asynchronous network services and distributed systems
• Commitment to high code quality (automated tests, linters, etc.)
• Team player with excellent collaboration skills
• High sense of responsibility and precision
• Willingness to work with legacy code in C, Java, or PHP when necessary
• Fluent in German and English (minimum B2 level)

Preferred Skills

• Experience with secure programming techniques, cryptography, Tokio, Async Rust, Sans I/O

Benefits

• Flexible working hours with 2 days/week work-from-home option
• Young, motivated team with flat hierarchies
• Opportunity to work on diverse projects and improve processes
• Free budget for workstation setup (macOS or Linux)
• Public transport discounts or free parking
• On-site fitness room and table tennis
• Regular team events and social gatherings
• Contribute to protecting privacy for millions of users

Additional Information

• Pragmatic application process including a practical programming assessment
• Applications welcome from candidates meeting most, but not all, criteria
• EU/EFTA citizens: Relocation assistance to Switzerland may be available
• Company languages: German and Swiss German

How to Apply

• Via Threema: *JOBS3MA
• Via Email: bewerbung@threema.ch

Note: This position requires good German language skills (spoken and written) as it's our primary company language.

Location:
Zurich

Tags

#Security

# Messages

# Securemessaging

# Distributedsystems