Freelancer profile translated to English.
Back to original languageAbout Arnold
Are you developing a product where performance is critical, but you need the flexibility of Python for your application layers? Maintaining the balance between robust, fast code and agile delivery is a major challenge.
With 8 years of experience at the heart of demanding systems, I act as the technical bridge between your raw power needs (C++) and your scalability imperatives (Python). My role is to ensure your architecture doesn't become a bottleneck, but a growth accelerator.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 10km), Montrouge (up to 15km)
Experience
- CeloxicaSoftware engineerSOFTWARE PUBLISHINGNovember 2023 - Today (2 years and 7 months)Paris, FranceMarket Access (C++/CMake)-Developed and tested 5 FIX plugins/markets:- Pragma Polaris FIX: Implemented a hash map for accelerated validation of large tag combinations.- BofA Instincts X ATS FIX- Instinet Blockross ATS FIX- Virtu MatchIt ATS FIX- Virtu Posit ATS FIX-CMEFIXP: Developed a solution for sharing party details across multiple market plugins.-Trading Logic Enhancements: Developed a solution to resolve routing conflicts in round-robin mode and implement the mechanics of conditional orders.-Quality Assurance: Corrected multiple issues related to tag handling (tags sent, not sent, incorrect values).Monitoring Solutions Improvement (C++/Python):- Low-Latency Order History: Designed and enhanced a low-latency solution using an ID to display and trace order history by searching data within very large files.- Configuration Management: Exposed static routing configuration into shared memory.- Routing Visualization: Enhanced a tool (script using ZMQ) to display routing configuration.Python Script Configuration and Installation Rework (python)- Refactoring: Reworked configuration setup using an object-oriented approach.- Installation Utility: Developed a multi-install, multi-thread installation process.- Port Management: Implemented port mapping to package a complete installation within a specific range of ports.
- NokiaScrum master / C++ Software engineerDecember 2022 - August 2023 (8 months)91300 Massy, FranceFacilitate Scrum: Run all Scrum events, including the Daily Scrum.Remove Impediments: Clear obstacles hindering team progress.Protect Team: Maintain the team's focus, commitment, and pace.Report & Manage Risk: Give the Product Owner a weekly progress and risk report.
- NokiaC++ Software engineerNovember 2017 - May 2023 (5 years and 6 months)91300 Massy, FranceL2 Packet Scheduler (C++ / CMake)- Developed and monitored the Per-Call Data Measurement (PCMD) feature.- Employed Test-Driven Development (TDD) for comprehensive unit testing.System Component Testing (SCT) (C++ / CMake / Python)- Created a complete component to simulate PCMD functionality interactions.- Developed a separate component to model User Equipment (UE) behavior.- Replaced the Bash SCT upload/execution script with an Object-Oriented Python implementation, boosting efficiency.Clients & technical support- Resolved critical client issues with the telecom gNB product through direct and consistent communication.- Analyzed extensive noise and event log data to identify root causes and delivered numerous hotfixes.
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Education
- Engineer's degree, electronics and informatics sciences - comunicant systemsÉcole Supérieure d'Ingénieurs Paris-Est Marne-la-Vallée, ESIPE.2017Engineer's degree, electronics and informatics sciences - comunicant systems