Network and System Engineer

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News and Press·Sep 2026Q*Bird becomes Falqon Systems, building the infrastructure for Quantum Secure Networks (QSN)The Dutch quantum communications pioneer becomes Falqon Systems reflecting its long-term vision to enable Quantum Secure…Events·Sep 2026QIA Kickoff and PI+ Meeting 2026Quantum Internet Alliance (QIA) Kickoff and PI+ Meeting 2026 brings together the QIA community working across…

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• Network and System Engineer

Network and System Engineer

TypeFull-time

LocationDelft, NL

Hours40 hours

Help build the infrastructure behind secure, reliable quantum networks by supporting our customer deployments and internal IT environment.

Overview

We are looking for a curious and versatile Network and Systems Engineer to maintain and improve both our customer deployments of quantum networking devices and our internal IT infrastructure. We are seeking someone who is security-minded, enjoys collaborating with others, and is motivated to build stable, scalable, and maintainable environments.

You take a long-term approach to solving problems rather than relying on quick fixes. Monitoring, reliability, and maintainability are integral to the way you work, and you actively look for opportunities to improve processes to make work easier for both you and your colleagues. You are comfortable balancing strategic infrastructure initiatives with day-to-day user support in a small but fast-growing company, and you are confident to challenge existing ways when you see a better approach.

You are interested in the future of securing the internet against quantum computers decrypting sensitive information, as well as the broader development of the quantum internet. You are motivated to learn and contribute to shaping this future.

In short, you are a resourceful and proactive Network and System Engineer with experience managing IT environments, and who is skilled in troubleshooting technical issues, improving system reliability, and securing internal environments.

Responsibilities

As a Network and System Engineer, you will play a central role in both Falqon System' internal infrastructure and the successful operation of our systems in customer networks.

You will help prepare our quantum networking devices for deployment by deploying software, validating device readiness, managing certificates and other security-related configs, and supporting the deployment processes. You will also look for opportunities to improve workflows by contributing to automation and tooling that increase team efficiency. You will help support the deployment and integration of Falqon System' quantum networking devices into customer networks and become a technical expert on our products. This includes assisting customers with network configuration, system integration, software and firmware updates, as well as troubleshooting networking, Linux, and system-level issues. As quantum networking technology is still emerging, you will help onboard and train customers, guide them through the setup and operation of their systems, and serve as a trusted technical point of contact as they gain experience with our technology.

Internally, your team will be responsible for maintaining and improving Falqon System' infrastructure. You will help manage our own LAN, VPN, Linux servers and other infrastructure. In addition, you will provide day-to-day IT support for employees, helping with laptops, user accounts, permissions, software installation, and troubleshooting in a fast-growing company environment.

We are looking for someone who approaches infrastructure with a long-term mindset. You care about reliability, maintainability, monitoring, and security, and prefer solving root causes over applying temporary fixes. You are comfortable balancing strategic infrastructure improvements with hands-on operational work and end-user support. When you see opportunities to improve processes, automate repetitive tasks, or make life easier for colleagues and customers, you take initiative and help drive those improvements forward.

You will thrive in this role if you are a curious and versatile network and systems engineer who enjoys working across networking, customer operations, and infrastructure. Above all, you are excited by the challenge of helping build the future of secure communications and are interested in the role that quantum networking technologies will play in securing the internet against future threats.

In summary,

• Deploy quantum networking devices
• Manage and maintain LAN, WAN, VPN, and firewalls
• Manage and maintain Linux servers, including patching, monitoring, and backups
• Provide internal IT support for employees, including laptops, accounts, permissions, software, and troubleshooting
• Configure and manage firewalls, certificates, endpoint protection, MFA, identity management, and security policies
• Monitor infrastructure health, investigate incidents, and resolve network or system outages
• Work with developers to improve our workflows
• Work with engineers in the field to troubleshoot our devices when it comes to Linux and Networking

Your profile

• 1+ years of experience in network engineering, system administration, customer support engineering, or a similar role
• Experience in troubleshooting complex networking and Linux-related issues
• Experience working directly with customers, including managing production systems and infrastructure
• Comfortable balancing customer-facing and internal operational responsibilities
• Experience with secure communication systems
• Solid understanding of TCP/IP networking, VLANs, VPNs, routing, switching, and VRFs
• Experience administering Linux systems
• Familiarity with firewalls, access controls, and network security principles
• Experience with Azure, Docker, or similar platforms
• Experience with monitoring tools such as SNMP, Syslog, InfluxDB, and Grafana
• Experience in automating tasks using Python, Bash, or similar scripting languages
• Strong problem-solving skills and attention to detail
• Clear communication skills, with the ability to support both technical and non-technical stakeholders with a service-oriented mindset
• Experience communicating with customers or in customer-facing activities would be valuable
• Comfortable working independently, adapting to changing priorities, and collaborating closely with software engineers, hardware engineers, and scientists.

We don't expect that the successful applicant will satisfy all the above points, but will have expertise in key areas and significant knowledge in most areas.

What Falqon Systems offers

• Opportunity to be part of the quantum revolution in a quantum company, and to build the next generation of digital infrastructure. Join us to create the Quantum Future!
• Starting Date: As soon as available
• Full-Time Employment
• Competitive salary package aligned with your skills and experience
• Flexible working hours
• 33 days of annual leave and holiday allowance
• Travel and Work expenses allowance.
• Education & Training budget
• Company-sponsored retirement plan
• Team outings and social activities organized by the company
• A young, energetic, fun team of highly skilled physicists, engineers, and industry experts, with an open working culture
• An international team that places a value on equality and diversity, no matter the race, religion, background, gender, or any of the differences that give each of us that unique perspective to strengthen the team
• Plenty of room for new initiatives and new ideas, and a chance to develop yourself at the cutting edge of technology

Ready to help build the infrastructure for Quantum Secure Networks?

Apply now and be part of building what comes next.

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We believe diverse perspectives strengthen how we think, build and solve problems and we are committed to an inclusive, respectful workplace where everyone can contribute and grow. Read our ED&I Policy Statement.

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