Freelancer profile translated to English.
Back to original languageAbout Adrien
With over five years of software security development and about twenty projects developed (professional and personal), I have acquired skills that allow me to provide simple solutions in complex environments. I primarily use the Golang development language: simple, performant, and cross-platform, it allows me to be very productive.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- IngenicoCryptographic Development Engineer and GNU/Linux ExpertTECHOctober 2021 - Today (4 years and 8 months)Valence, FranceResearch and development of a gRPC server (RPC framework using Protocol Buffers, a binary serialization language and toolset) written in Golang to generate cryptographic objects (RSA/EC asymmetric keys, AES symmetric keys) and use them via cryptographic primitives (encryption, decryption, signing, verification, HMAC...) using any security module (HSM) that implements PKCS #11.Installation and deployment of physical servers in French datacenters (Interxion and Equinix): performing key ceremonies (session that defines the methods for generating and storing cryptographic objects).Providing Level 3 support to operational teams during maintenance or update interventions on pre-production and production servers.Research and development on the Utimaco CryptoServer Se-Series Gen2 HSM.Development of a tool written in Golang to generate an RSA key pair and a CSR to create an authentication token (SafeNet eToken 5110 FIPS 140-2 Level 3) for connecting via mTLS to the administration interface for injecting cryptographic objects into terminals.Code analysis of a binary signing solution deployed on a range of terminals and writing documentation to implement best development practices related to the Golang programming language.Development of a CLI client to consume the binary signing solution API. Design of a stateless authentication mechanism allowing the storage of an OAuth2 token via Argon2id, AES 256 GCM/XChaCha20-Poly1305.Design of a development environment based on VMWare ESXi 8.Providing expertise related to hardening operating systems based on RHEL 7, 8, and 9.
- Groupe SEBDeputy CISOENTERTAINMENT AND LEISUREOctober 2019 - October 2021 (2 years)Écully, FranceResponsible for the migration of the BI tool and improvement of the information system's key security performance indicators.Responsible for the migration and operation of the data governance tool.Management and monitoring of risk management campaigns (vulnerability scans, penetration tests...).Creation and presentation of support materials for teams regarding domain name security (using subdomains for email sending, SPF, DMARC, DKIM...), definition and measurement of key performance indicators, and creation of technical and functional documentation for security tools.Laying the groundwork for a Computer Security Incident Response Team (CSIRT): design of incident response processes, installation, use, and presentation of forensic analysis tools.Development of a tool based on threat intelligence via VirusTotal and IBM X-Force Exchange.
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Education
- Network and Security Project ManagerPoly-Informatique Institute2021Compétences visées : - Configurer, administrer des systèmes d’exploitation hétérogènes ; - Installer, paramétrer et administrer des serveurs ; - Assurer la sécurité des infrastructures techniques du système d’information ; - Mettre en place la virtualisation des équipements réseaux et matériels, de déployer les solutions d’équipement mobiles ; - Surveiller, analyser et auditer des bases de données ; - Assurer la continuité opérationnelle.
Certifications
- Certified AdministratorVaronis2020
- CCNA 4Cisco2021