Freelancer profile translated to English.
Back to original languageAbout Hao
RAMS (Reliability, Availability, Maintainability, Safety) Engineer with several years of experience in the railway sector, I also possess strong skills in applied probability, statistics, and data processing. Currently employed full-time, I am looking for occasional freelance assignments (a few hours a day or on weekends) to apply my expertise to various projects.
French
Native or bilingual
English
Fluent
Vietnamese
Native or bilingual
Remote only
Primarily works remotely
Experience
- RATP,Data Scientist / Reliability, Availability & Statistics EngineerTRANSPORTATIONMarch 2023 - Today (3 years and 3 months)Fontenay-sous-Bois, FranceContext: Innovation Project: Data Science1. Data Exploitation:∠ Data Preparation: data set cleaning, incorporation of other external data, data preprocessing∠ Data Processing: programming in Matlab, R, and Python: feature extraction, statistical analyses, machine learning (anomaly detection, diagnostics - classification, etc.)∠ Deployment and Automation of script execution ∠ Data analysis and visual presentation2. Ambitions: Strengthening FDM requirements in tender documents, estimating system reliability/availability via real-time data, analyzing undesirable scenarios, proposing suitable maintenanceProject Context: Monitoring and support throughout the project lifecycle regarding reliability/availability∠ Preliminary Project: Needs expression (calculations, lessons learned, etc.), objective/requirement definition, drafting of Equipment Design Documents (DCE) and analysis of technical proposals∠ Forecast Studies: technical opinion and design validation, conformity check against DCE requirements∠ Operational Phase: statistical analyses, performance calculations, anomaly monitoring from commissioning until the end of the warranty period. Conformity check against DCE requirements∠ Statistical analyses and probabilistic calculations (especially quantification of residual scenarios)∠ Supervision of interns/apprentices
- Siemens,RAMS R&D EngineerTRANSPORTATIONMarch 2022 - March 2023 (1 year)Châtillon, FranceProject Context: Carrying out safety studies necessary to meet RAMS commitments for CBTC projects and products∠ Conducting functional safety studies for CBTC projects and products, including the analysis of undesirable event scenarios and degraded operating modes∠ Ensuring compliance with contractual and regulatory requirements∠ Coordination of subcontracted studies and participation in client support
- Vulcain EngineeringRAMS/ SLI Design and Project EngineerJune 2021 - March 2022 (9 months)Neuilly-sur-Seine, FranceProject Context: Study of all RAMS/SLI activities for the public transport systems of Grand Paris∠ Development of the overall Safety and FDMS/SLI strategy, with detailed studies∠ Drafting of Safety and FDMS/SLI documents∠ Participation in project management meetings and review of technical and documentary deliverablesProject Context: Operational availability of a ship on a mission considering all operating and maintenance conditions and limitations∠ Conducting bibliographic research∠ Proposal of an operational availability model integrating a colored stochastic Petri net and a reliability block diagram∠ Modeling and simulation using Matlab/GRIF, validated by a case study and theoretical/numerical calculations
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Education
- PhD student in RAM/ Optimization and Systems SafetyTroyes University of Technology2020Doctorant en RAM/ Optimisation et Sûreté des Systèmes
- RAMS EngineerTroyes University of Technology2016Ingénieur en RAMS