Security engineering / Based in Algiers / Open to European relocation
I’m Fethi Boughalia, a senior security software engineer with 14+ years building secure communications, cryptographic software and hardened Linux platforms for mission-critical environments.
Selected case studies / public portfolio work
A mobile-first daily-focus application with five-goal planning, subtasks, calendar history, passwordless email authentication and per-user data ownership.
Evidence: project website · product and security case study
Read the case study →
Visit website ↗A threshold-based credential recovery concept using Shamir’s Secret Sharing and local encryption.
Evidence: project website · security case study · repository not linked
Read the case study →
Visit website ↗A local-first, metadata-minimizing communication prototype with signed, encrypted invitation-only contact establishment.
Evidence: project website · security architecture · product prototype
Read the case study →
An open-source VPN implementation exploring TUN/TAP networking, encrypted UDP transport and modular C++ architecture.
Evidence: public repository · security case study
Read the case study →
A document-integrity workflow based on RSA signatures, SHA fingerprints and REST APIs.
Evidence: public repository · security case study
Read the case study →Services
Security-focused review of C, C++, Python and backend systems.
Trust boundaries, data flows, attack surfaces and security controls.
Design review for signatures, PKI, key lifecycle and HSM integration.
Threat modeling and engineering guidance for security-critical product.
Professional experience
Fourteen years moving between low-level implementation and system-level security.
I have built secure communications in C/C++, implemented cryptographic software, hardened embedded Linux platforms, and worked with HSM-backed key lifecycles, VPN infrastructure, identity systems and security operations.
The thread through it all is practical: understand the trust boundary, make the design reviewable, and carry it safely into production.
C/C++ · Python · Linux · Buildroot · PKI · HSM · VPN/IPsec · Secure memory
About / working style
I work across the trust boundary: code, cryptography, operating systems, infrastructure and the people responsible for them.
Start with assets and threat boundaries. Make assumptions explicit. Prefer designs that can be reviewed, tested and operated safely. Treat cryptography as one control inside a complete system—not a substitute for sound architecture.
C and C++ systems, Python services, applied cryptography, embedded Linux, secure communications, HSM/TPM integration and technical leadership. Currently deepening Azure security architecture expertise.
Credentials / continued learning
Linux system administration foundation.
Advanced networking and security foundation.
End-to-end security controls across Azure, hybrid and AI-enabled environments, protecting identities, data, applications and infrastructure.
Open to senior roles and relocation across Europe
I’m interested in senior security software, product security, embedded security and security architecture roles. Selected technical advisory engagements remain welcome.