Senior Cryptography Engineer: FPGA & Post-Quantum

PVH (Tommy Hilfiger/Calvin Klein); Paris; Sur place; EUR 90 000 - 130 000; Plein temps

Résumé du poste

CryptoNext Security, a Paris-based start-up, seeks a senior Cryptography R&D Engineer to port the Quantum Safe Library across platforms and drive FPGA-accelerated cryptography. You will blend cryptography, low-level C, and embedded design to deliver portable, secure implementations.

Join a highly technical team, contribute to certification efforts, and work on cutting-edge PQC across hardware and software domains in a fast-growing environment in Paris.

Qualifications

• Significant, senior-level experience in cryptography engineering, ideally 5+ years in a software company or cybersecurity vendor.
• Engineering degree or Master’s in computer science, mathematics or related field; PhD is a strong plus.
• Strong programming skills in C; comfortable near hardware, optimizing for performance and security.
• Experience with embedded development and hardware debugging tools (GCC, GDB, QEMU, JTAG) and CI with GitLab.

Responsabilités

• Design and implement efficient C code for post-quantum cryptographic algorithms, focusing on performance, portability and security.
• Port and optimize the CryptoNext Quantum Safe Library across platforms and architectures, emphasizing hardware accelerators.
• Contribute to hardware/software co-design: prototype cryptographic accelerators and evaluate trade-offs between software and FPGA implementations.
• Adapt implementations for constrained embedded environments (IoT, Cortex-M, embedded Linux).
• Define and run test/validation strategies across platforms; support security certification processes (CSPN, Common Criteria, FIPS).
• Document work through technical reports and papers; collaborate with R&D and cross-functional teams.

Connaissances

C programming

Cryptography engineering

Embedded development

Hardware debugging

FPGA design

OpenSSL experience

GitLab CI

Bilingual ENG/FR

Formation

Engineering degree

Master's in CS/Math

PhD in cryptography

Outils

GCC

QEMU

GDB

Quartus Prime

Vivado

JTAG

Description du poste

CryptoNext Security, a Paris-based start-up, seeks a senior Cryptography R&D Engineer to port the Quantum Safe Library across platforms and drive FPGA-accelerated cryptography. You will blend cryptography, low-level C, and embedded design to deliver portable, secure implementations.

Join a highly technical team, contribute to certification efforts, and work on cutting-edge PQC across hardware and software domains in a fast-growing environment in Paris.