12/14/2025 updated

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Data Scientist & Expert Recommender Systems

Annaba, Algeria
Worldwide
Ph.D. in Computer Science
Annaba, Algeria
Worldwide
Ph.D. in Computer Science

Profile attachments

Chemseddine_CV__DS_V4.pdf

About me

AI & Data Engineer and University Lecturer specialized in machine learning, recommender systems, graph modeling, and LLMs. Experienced in applied ML, intelligent data extraction, and research-driven AI solutions. Strong Python background, pragmatic and reliable. #recommendation, #ML, #data_science

Java (Programming Language)Agile MethodologyAlgorithmsData AnalysisApache HTTP ServerAssociation Rule LearningAtlassian ConfluenceAtlassian JiraC Sharp (Programming Language)ProfilingComputer ProgrammingContinuous IntegrationData ValidationInformation EngineeringExtract Transform Load (ETL)Data ModelingData VisualizationWeb DevelopmentExperimentationR (Programming Language)Python (Programming Language)PostgreSQLMATLABMachine LearningProject ManagementMySQLNumPyWeb Ontology LanguageScrum MethodologyResource Description Framework (RDF)Recommender SystemsMicrosoft Power BITensorFlowReproducibilitySemantic WebSPARQLSQL DatabasesStatisticsSalesforce TableauWekaWorkflowsData ProcessingTestingDemonstration SkillsData Storage TechnologiesFeature EngineeringData SciencePackaging and Processing DutiesPyTorchReact.jsLarge Language ModelsPrompt EngineeringDeep LearningKaggleVue.jsGitKanbanpandasMatplotlibScikit LearnMachine Learning OperationsProject DeliveryReact ReduxDataikuApache MahoutDatabase AdministrationDocker
Machine Learning & Recommender Systems:
  1. Collaborative Filtering, Session-based systems, Multi-objective Optimization, Feature Engineering, Deep Learning, and Evolutionary Algorithms with expertise in developing novel recommendation approaches
Programming & Development:
  1. Python with Pandas, NumPy, Scikit-learn, PyTorch, SQL, Java, MATLAB, C#, R for data science applications and web development using Vue.js, React, Redux
Large Language Models & NLP:
  1. RAG implementation, Prompt Engineering, Embedding Search, Text Similarity, NLP Preprocessing, and Experimental Evaluation for advanced language processing tasks
Semantic Web & Knowledge Graphs:
  1. OWL, RDFS, SPARQL, Apache Jena, Association Rules for semantic data modeling and knowledge extraction
MLOps & Deployment:
  1. Docker, Lightweight CI/CD, Model Packaging, Performance Profiling, DVC, Git, Experiment Tracking for scalable machine learning operations
Data Engineering:
  1. ETL Pipelines, Data Validation, EDA, Reproducible Workflows, Statistical Testing for robust data processing
Data Science Tools:
  1. Weka, Mahout, RankSys, Kaggle, TensorFlow, Matplotlib for comprehensive data analysis and modeling
Data Visualization:
  1. Power BI, Dataiku, Matplotlib, Tableau for creating insightful data presentations and dashboards
Database Management:
  1. MySQL, PostgreSQL, Microsoft Access for efficient data storage and retrieval systems
Project Management:
  1. Jira, Confluence, Scrum, Kanban, Agile Methodologies for effective team coordination and project delivery

Experience

Professional experience5 - 10 years
Freelancer since2021

Languages

GermanBasic knowledgeEnglishFluentFrenchFluent

Project history

Data Scientst Freelancer

ATER (Attache Temporaire d'Enseignement et de Recherche)

IUT de Paris
Teaching undergraduate students in web development technologies, including HTML/CSS, JavaScript, and NodeJS micro-services. Teaching undergraduate students in application development with GUI using .NET in VB.

Assistant Professor

Higher School of Computer Science and Technologies (ESTIN)
Delivered Foundations of Data Science course to 60+ students annually, covering data acquisition, preprocessing, modeling, visualization, and communication using Python and Matplotlib. Taught Information Systems Security Audit course, training 50+ students in security fundamentals and audit methodologies. Supervised master's projects on LLM-based recommender systems and automated data science tools. Mentored PhD thesis on psychological impacts of recommender system manipulations, developing simulation scenarios and mitigation strategies.

Data Management Engineer

Nechma Technology
Developed an accounting module for the Algerian Accounting System using Python and XML, streamlining financial processes. Designed configurable reporting solutions for tax compliance. Automated data verification with checklists, enhancing data accuracy. Optimized user interfaces.

Part-Time Assistant Professor

Badji Mokhtar University
Mentored 50+ students in MATLAB programming labs, enhancing their skills in data structures, matrix calculations, and visualization. Guided students from basic to advanced programming concepts, improving project completion rates by 30%.

Freelance Developer

Self-Employed
Built dynamic web and desktop applications using Vue.js, React, Redux, and SQL databases. Developed Java-based backend solutions for efficient data storage and retrieval.

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