Who we are
CryptoNext Security is a deeptech startup specializing in post-quantum cryptography. We help businesses and institutions get ready for a world where quantum computers will break today’s cryptography.
Our customers include major banks, defense actors, telecom operators, and large enterprises securing their most sensitive infrastructures.
On a daily basis, you will
As Senior Probe Appliance Engineer, you will take full technical ownership of the COMPASS probe appliance, a high-performance hardware + software component responsible for packet capture, telemetry extraction, and encrypted traffic analysis.
You will work across the full lifecycle of the appliance: system installation, kernel-level tuning, security hardening, performance optimization, reliability engineering, and operational excellence.
System, OS & Installation
- Deploy, configure, and maintain the COMPASS probe appliance (hardware + Linux OS).
- Perform OS-level and kernel-level hardening (CIS benchmarks, secure boot, file integrity, access control).
Network Performance & Packet Capture
- Optimize the appliance for high-throughput packet capture using DPDK, AF_XDP, or zero-copy capture frameworks.
- Tune network interfaces, NIC offloading, IRQ distribution, and NUMA alignment.
- Build low-latency, high-performance data paths.
Data Ingestion & Pipeline Integration
- Guarantee secure, reliable ingestion into Kafka pipelines.
- Ensure compatibility and performance with downstream data and platform components.
Engineering Collaboration
- Work closely with R&D teams to integrate parsing modules, firmware updates, and kernel patches.
- Document operating procedures (installation, upgrades, troubleshooting).
Observability, Monitoring & Reliability
- Implement monitoring (metrics, logs, health checks).
- Maintain configuration management and full traceability of system changes.
- Run benchmarks, stress tests, and capacity planning.
Deployment Support
- Provide support to customers and integrators during field deployment (occasional on-site presence).
Security
- Contribute to the appliance’s security model:
- access control,
- secure boot chain,
- encryption (at rest and in transit),
- update pipeline security.
