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Olivier NgossoON

Olivier Ngosso

Senior IT Project Manager | IT Project Director

€600/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Olivier

Senior IT Project Manager with over 11 years of experience in managing high-value application and technical projects in critical environments (aerospace, rail, retirement, GDS) and international contexts. Specialized in fixed-price delivery, technical assistance, TMA, complex migrations, and application redesigns. Proficient in Agile methodologies (Scrum, Kanban). Strong skills in budget management, risk and quality management (GDPR, KPI, SLA, PCI-DSS). Coordination of multidisciplinary teams (France, India, Portugal) and client relationship management. Professional English – Expertise in management: PRINCE2, Lean Management Green Belt, Scrum PO, Project Management.

They trusted me:

1) AMADEUS IT GROUP: Service Center Director for the travel booking Front Office application, Amadeus Selling Platform, generating 85% of the group's revenue. Responsible for a strategic contract, with commitment, service level agreement, critical KPIs, 24/7 maintenance for 600,000 users. Contractual commitment, with systematic achievement of quality, deadline, and cost objectives. Supervision of 12 engineers in France, Portugal, and India. Management of a budget of €1.4 million/year.

2) SNCF VOYAGEURS: Project Director on assignment for the 2024 Olympic Games: Redesign and security of the application portfolio, reduction of technical debt. Management of 4 Product Owners, budget management of €2.4 million.

3) SAFRAN ENGINEERING SERVICES: Management of software development projects for detecting defects on reactor blades using X-rays, ultrasound, AI, and robotics.

4) LGM GROUP (Management of aeronautical, defense, and space projects): Manager of an internal application portfolio for 1300 users (CRM, procurement, absence, and expense management). Supervision of 4 resources, redesign of the IT department's project management processes.

Let's discuss your projects.
Sincerely,
Olivier NGOSSO
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Vélizy-Villacoublay (up to 50km), Issy-les-Moulineaux (up to 50km), Boulogne-Billancourt (up to 50km), Nanterre (up to 50km)

Experience

  • SAFRAN ENGINEERING SERVICES
    SENIOR IT PROJECT MANAGER
    AVIATION AND AEROSPACE
    November 2024 - June 2025 (7 months)
    High-tech engineering services in the aerospace and defense sector.

    Operational Scope:
    • Non-Destructive Testing (NDT)of civil and military aircraft engine blades.
    • Management of software development projects for detecting defects on reactor blades using X-rays, ultrasound, AI, and robotics.
    70% project management:
    • Develop technical and commercial proposals.
    • Work breakdown, planning, and financial management of the project.
    • Assignment of resources and skills matrix.
    • Monitoring of progress and validation of advancement.

    30% technical domain:
    • Requirements gathering and specification with the client.
    • Analysis of solutions at functional and architectural levels.
    • Technical expertise in support of development teams.
    • Technical environment: MS 365, MS Project, Java EE, SQL, JavaScript, MongoDB, GitLab.

    Managed Budget:€100k/Project
  • LGM GROUP
    SENIOR APPLICATION PROJECT MANAGER IT DEPARTMENT
    AVIATION AND AEROSPACE
    January 2024 - October 2024 (9 months)
    78140 Vélizy-Villacoublay, France
    Management of major high-tech projects: aerospace, defense, space.

    Operational Scope:
    • Application portfolio (~1300 PCs):Expense reports, absence management, purchasing database.
    • Supervision of applications handling third-party data (suppliers, HR, commerce…).
    • Management of evolving and corrective maintenance and ticket management.
    • Redesign of the project management process.
    • Implementation of a risk register and a skills matrix.
    • Steering of phases: scoping, planning, design, testing, and commissioning.
    • Team of 4 resources.
    Technical Environment:MS 365, SQL, SSMS, Jenkins, GitLab
  • SNCF Voyageurs
    IT DEPARTMENT PROJECT DIRECTOR CONSULTANT
    TRANSPORTATION
    July 2023 - December 2023 (5 months)
    Paris, France
    Transilien IT Department:**6200 trains per day**,200 applicationsin very high **availability 24x7**.
    One-off mission carried out as a management reinforcement for the Paris 2024 Olympic Gamesand integrated into a modernization project for theDATA ISand passenger services (**IV Station: visual, audio, and video information, ticketing**).

    Operational Scope:
    • Data Domain Managerand support for In-Station Passenger Information.
    • Business Referentfor managing project requests, ensuring the interface between IT teams and business stakeholders.
    • Planning, coordination, and monitoring of feasibility studies on data and passenger information topics, monitoring system risks and remediation plans.
    • Development and management of testing strategies: functional, performance, and security testing (penetration testing).
    • Data quality improvement for critical applications.
    • Structuring and centralization of passenger data.
    • Implementation of data governance to improve inter-application consistency.
    • Optimization of critical application resilience and reduction of technical debt to ensure service availability and robustness.
    • Product backlog management and user story writing using Agile methods (**Scrum/Kanban**).
    • Management of system migration projects aimed at strengthening application security and correcting identified vulnerabilities.
    • Management and steering of a team of 4 Product Owners, with monitoring of roadmaps and deliverables.

    Technical Environment:MS Project, JIRA, Confluence, Databricks, Kubernetes, Spring Boot, AngularJS/LTS, Apache Spark, Apache Airflow, PostgreSql, JAVA.

    Managed Budget:€2.4 million

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Education

  • PRINCE2 Foundation & Practitioner, Management de projet
    CERTyou
    2023
    Gestion de projet · Gestion des risques · Contrôle des coûts · Système de gestion de la qualité (SGQ), Gestion du Changement
  • Posture pour Directeurs de Projets, Management de projet
    M2i Formation
    2021
    – Affirmer son Leadership – Bonnes pratiques managériales – Manager une équipe à distance (en télétravail) – Améliorer les compétences de ses collaborateurs – Savoir déléguer et responsabiliser

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