Software Engineer - QKD Systems | zerothird (m/w/d)

Zerothird GmbH lead the field in quantum cryptography, based in Vienna and specializing in polarization-entanglement-based Quantum Key Distribution (eQKD). To accelerate our market growth, we’re seeking a highly skilled Software Engineer to join our innovative team in Vienna, focusing on the development and maintenance of software for our cutting-edge Quantum Key Distribution (QKD) systems. This role is instrumental in crafting secure, efficient, and reliable software solutions that enhance the performance and security of our QKD product. We particularly welcome applications from women to further increase diversity among us.

• Software Development: Design, develop, and maintain robust software for our advanced QKD systems, ensuring high performance and reliability
• Cybersecurity Enhancement: Build secure software and software infrastructure (like image registries, security scanner, PKI, …), harden Linux systems and network configurations. Develop threat models, introduce advanced security capabilities and adopt CIS-benchmark requirements for existing software projects
• System Optimization: Collaborate with colleagues to create software that is not only secure but also highly efficient and capable of operating under stringent conditions
• Process Improvement: Enhance development methodologies by supporting and improving software development processes, testing, and DevOps practices

• Professional Experience: Demonstrated experience in designing, developing, and maintaining complex software systems, with a focus on security and reliability
• Programming Skills: Proficiency in systems programming languages such as C, C++, or Rust, with a strong preference for experience in Rust
• Secure Software Development: Expertise in developing secure software systems and secure software lifecycle is highly regarded. This may include experience with code signing, certificates, authentication, secure communication and other secure software mechanisms
• Specialized Knowledge: Experience in one or more of the following areas will be highly regarded:

  • Security-sensitive systems and cryptography

  • Fail-safe systems and certified software
  • Distributed and high availability systems

• Tool Proficiency: Solid understanding of GIT, GitLab, and CI/CD pipelines, Kubernetes is a plus
• Language Skills: Excellent command of English and/or German, both written and spoken, to ensure effective communication within a diverse team

• Vibrant Quantum Community: Join a young and dynamic team where dialogue is fostered at all levels, featuring a lot of laughing and joking. Drink best Italian espresso while competing in the internal backgammon tournament
• Family-Friendly Workplace: zerothird values the balance between work and family life. We understand and support the needs of working parents within our team, offering flexible working arrangements, part time possibilities and a culture of mutual support where family comes first
• Exceptional Career Opportunities: As a startup at the forefront of rolling out unique quantum cryptography technologies worldwide, we offer unparalleled career growth opportunities. Whether in Austria or internationally, you’ll find a wealth of possibilities to advance and shape your career in an exciting, fast-evolving field
• Inclusive Culture: Thrive in an authentic „Duz-Kultur“ where everyone is on a first-name basis, encouraging short decision-making processes and fostering a friendly, open office environment
• Personalized Onboarding: Receive comprehensive introduction training, supported by a dedicated mentor to ensure a smooth transition and successful integration into our team.
• Daily Energizers: Enjoy complimentary amenities such as soft drinks, coffee, tea, fresh fruit, and ice cream to keep you refreshed throughout the day
• Special Events: Participate in epic company activities including summer parties, and festive Christmas parties

The minimum gross salary for this position is €3.378,48 per month (full-time basis) in accordance with the collective agreement, plus commission.. However, there is a willingness to offer a higher salary depending on experience and qualifications.

📩 Ready to Apply?

Send your CV and a short motivation letter!