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Léger AlechouLA

Léger Alechou

Senior PM IT / Tech Lead – C# .NET Java & Data

€700/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Léger

Senior IT Project Manager / Tech Lead with 16 years of experience, including 12 in managing, developing, and architecting critical systems in C#/.NET/Java/J2EE/C/C++ with high regulatory impact (Insurance, Finance, Industry, Energy, Rail).

Proven track record: -50% critical incidents, -62% downtime, budgets up to €2.5M, teams of 25 people.
Expert in data governance, GDPR compliance, IT risks, and mastered Agile/Scrum/V-Cycle methodologies.
Dual Business + Technical role to manage and deliver robust solutions.

TECHNICAL STACK & SKILLS
- Management & Soft Skills
Team Management (up to 25 people)
Change Management
Supervision and Committee Steering
Business Workshops & Design Thinking
Conflict Management & Negotiation

- Project Management & Methodologies
Agile / Scrum (PSM I Certified)
V-Cycle, SAFe
Jira, Confluence, Trello
ServiceNow (ITIL 4 Foundation Certified)
Budget Planning & ROI

- Business Intelligence & Data
QLIK Sense / QlikView, Tableau, Power BI
Apache Spark, Hadoop
Data Warehouse (DWG), DataLake, DataMart
ETL (Informatica, Talend), Orchestration (Opcon, SMA Vision)
Cloud: AWS, Azure

- Languages & Databases
SQL (Oracle, PostgreSQL, MySQL, SQLite)
Python (Pandas, NumPy)
C# / .NET (Framework & Core), Java/J2EE (Servlets, JSP, EJB, Spring, Hibernate), C/C++
Web (PHP, JavaScript, HTML/CSS, Angular, JQuery), SOAP/REST Web Services
DevOps & CI/CD: Jenkins, Sonarqube, Rectify, Git, Rational ClearQuest

- Governance & Security
GDPR & Regulatory Compliance
IT Risk Management
Cybersecurity (Certified 2025)
IT Architecture & Urbanization
SCADA / ICS Security

- Languages
French: Native language
English: Professional IT (B2), comfortable in project context (meetings, emails, documentation)
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Startup (confidentiel) - Freelance
    Project Manager / Data Audit & Architecture Code
    January 2026 - March 2026 (2 months)
    Paris, France
    Context: Technical audit, architecture, and code quality on a critical data platform (ETL pipelines, Data Lake, APIs) for a scaling startup.
    • ▪ C# / .NET code quality audit (debt, security, complexity) of data flows, data architecture evaluation (modularity, scalability, governance), optimization recommendations (SQL optimization and performance, data quality, DevSecOps), risk mapping, coordination of data/dev teams, executive reporting.
    • ▪ Results: 40% of critical technical debt resolved on data pipelines / 30% less architectural complexity, 5x flow scalability / Quality/security gates integrated into data flow CI/CD / Roadmap for refactoring and data architecture evolution validated with management. Tools: Data code audit, Data Lake/ETL Architecture, DevSecOps, CI/CD, Agile
  • GROUPAMA SUPPORT & SERVICES
    Business Intelligence / BIG Data Project Manager
    October 2022 - May 2025 (2 years and 7 months)
    Paris, France
    Context: Managing projects to improve management and DWG refresh processes for Non-Production environments for all GROUPAMA entities.
    • ▪ Design, implementation, and promotion of 5 QLIK Quality of Service applications (Agile + V-Cycle)
    • ▪ IT Risk Management: QoS workshop, 50% reduction in critical incidents, implementation of continuity and proactive monitoring plans
    • ▪ Environment refresh optimization: reduction of downtime from 40 to 15 days (-62%) through automation
    • ▪ Technical alignment of DWG (GROUPAMA Data Warehouse), DTM, and DataLake environments
    • ▪ Operational and compliance risk management: IT risk mapping, mitigation, risk reporting - regulated environment (ACPR, GDPR)
    • ▪ GDPR, Personal Data Security, Technical Project Lead (Oracle Index tooling, DTMC/DWG Views and Grants)
    • ▪ Management KPI reporting: weather/status and data freshness of QLIK applications
    • ▪ Client exchanges / MOA / Companies & Internal G2S exchanges
    • ▪ Team Coordination: 23 people (ETL Devs, Spark Devs, Qlik Devs, Project Managers, Architects / Urban Planners)
    • ▪ Tools: ServiceNow, Visio, Draw.io, Jira, Confluence, Trello, MS Teams, MS SQL Server, Informatica ETL, Opcon, SMA Vision
  • GROUPAMA
    Business Intelligence / BIG Data Project Manager
    BANKING AND INSURANCE
    October 2022 - May 2025 (2 years and 7 months)
    Paris, France
    Context: Managing projects to improve management and DWG refresh processes for Non-Production environments for all GROUPAMA entities.
    • Design, implementation, and promotion of 5 QLIK Quality of Service applications (Agile + V-Cycle)
    • IT Risk Management: QoS workshop, 50% reduction in critical incidents, implementation of continuity and proactive monitoring plans
    • Environment refresh optimization: reduction of downtime from 40 to 15 days (-62%) through automation
    • Technical alignment of DWG (GROUPAMA Data Warehouse), DTM, and DataLake environments
    • Operational and compliance risk management: IT risk mapping, mitigation, risk reporting - regulated environment (ACPR, GDPR)
    • GDPR, Personal Data Security, Technical Project Lead (Oracle Index tooling, DTMC/DWG Views and Grants)
    • Management KPI reporting: weather/status and data freshness of QLIK applications
    • Client exchanges / MOA / Companies & Internal G2S exchanges
    • Team Coordination: 23 people (ETL Devs, Spark Devs, Qlik Devs, Project Managers, Architects / Urban Planners)
    • Tools: ServiceNow, Visio, Draw.io, Jira, Confluence, Trello, MS Teams, MS SQL Server, Informatica ETL, Opcon, SMA Vision
    Team Management Cross-functional Leadership technical management KPI & Weather Agile Project Management

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Education

  • Engineering degree in Electronics and Industrial Computing
    ENSSAT
    2009
    Option Systèmes Embarqués
  • HND in Industrial Computing
    GASA Formation
    2004
    BTS en Informatique Industrielle

Certifications

  • Develop and Implement a Cybersecurity Strategy
    ESIC
    2025
    Management of Secure Information Systems Steering Cybersecurity Governance
  • ITIL® 4 Foundation Certification – IT Service Management
    PeopleCert
    2025
    Service Request and Incident Management Change Management Service Value Chain Management Incident and Problem Management Continual Service Improvement

Skill set

Categories