Freelancer profile translated to English.
Back to original languageAbout Youcef
Looking for an experienced developer to structure, maintain, or evolve a significant C++ codebase? I can help.
With over 20 years of experience in software development, I specialize in the analysis, design, refactoring, modernization, and optimization of C++ codebases, even when they are complex, legacy, or business-critical.
I offer:
- Quick and reliable understanding of your existing code
- Implementation of robust and maintainable components
- Clear, solution-oriented, and collaborative communication
- Ability to resolve complex bugs and improve software quality
I also regularly work with Python and C#, and I am comfortable in various technical environments.
Types of projects supported:
- Evolving or corrective maintenance of C++ applications
- Modernization/refactoring of legacy code
- Development of custom software modules or tools
- Code review, documentation, technical team support
Available for full remote work, I am autonomous, reliable, and proactive.
For a detailed overview of my background and skills, you can also check my LinkedIn profile:
French
Native or bilingual
English
Fluent
German
Basic
Arabic
Conversational
Remote only
Primarily works remotely
Experience
- My CompanyFreelance consultantSOFTWARE PUBLISHINGAugust 2024 - Today (1 year and 10 months)Paris, FranceShort term contract: Technical study for Windows C++ drivers (2025, 3 days) – Architecture analysis and recommendations for a WIA driver development.Personal projects* SendCipher (2025-present) – End-to-end encrypted file sharing with zeroknowledge architecture (server-blind). Rust back-end (~7,500 lines), HTMX + JSfront-end (~4,000 lines). Client-side encryption, secure key derivation, no plain-text ever exposed to server. Live at sendcipher.com. Command line interface atgithub.com/youcefl/sendcipher.* LFP (2024-2025) – A C++20 constexpr sieve of Eratosthenes able to sieve beyond 2^64. Multi-threading, wheel factorization, bucket sieving, 64-byte aligned memory → github.com/youcefl/lfp
- MathWorksSenior Software Development EngineerSOFTWARE PUBLISHINGJune 2021 - July 2024 (3 years and 1 month)Meudon, FranceWorked on Polyspace for AUTOSAR, application providing AUTOSAR support toPolyspace, a C/C++ source code analysis software suite.Maintenance of the application written in C++ (Debian Linux):▪ Bug fixes.▪ Improvement of the performances and usability.▪ User support.Implemented major features.Key achievements:Greatly improved the performances and usability of the product while acquiringknowledge about AUTOSAR classic.Took ownership of the product and implemented major features.
- Capsule Technologie, a QualcommSenior Software EngineerSOFTWARE PUBLISHINGJuly 2018 - June 2021 (2 years and 11 months)Île-de-France, FranceWorked on the Capsule MDIP client/server medical data processing software suite.Maintenance, evolution of the server application written in C++ (Visual Studio2017/TFS):▪ Bug fixes in multithreaded source code.▪ Improve the trace system for better performances and usability.▪ Help implement and integrate a licensing component, created a C# nugetpackage wrapping the C++ one.Upgrade OpenVPN used for secure communication between server and clientNeurons i.e. tablet used by nurses and doctors (VS2017 Wix projects, MS-DOS●batches).Integrate new component for interaction with audio hardware on a new Neuronplatform (C#, C# interop with C/C++).Key achievements:Vastly improved performances and usability of trace system in a C++ serverapplication.Fixed hard to diagnose/fix bugs in multithreaded C++ source code.
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Education
- CFA-AFTIFrance Télécom R&D2004CFA-AFTI
- Master's degree in MathematicsUniversité Paris Diderot2000Maîtrise