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N'ZI YAO

Certified ServiceNow Architect (CTA)

Jean-Emmanuel N'ZI YAO

ServiceNow Architect · France

I support companies through their digital transformation on ServiceNow — from target architecture to technical leadership, from pre-sales to production.

years of experience
8+
certifications
22
client engagements
10
employers
4

About

Architecture, consulting and technical leadership

Certified ServiceNow Technical Architect (CTA), I leverage over 8 years of experience in IT, employee and customer service management to support companies in their digital transformation projects.

My expertise covers consulting, architecture, pre-sales, development, as well as technical leadership on strategic projects.

I work on target architecture definition and return-to-standard approaches as much as on complex implementations: CSDM modeling, critical integrations, platform governance and Artificial Intelligence capabilities.

Track record

Professional experience

Ten engagements with major French and international accounts, from architecture audits to application maintenance leadership.

  1. Devoteam

    20242026

    · Consulting & integration

    6 engagements

    Ciril Group

    ServiceNow Architect

    Context

    Support for a French software publisher and cloud host in implementing AI capabilities on ServiceNow to generate a competitive advantage in the market.

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    Responsibilities

    • Evaluation of the existing technical debt.
    • Definition of the target architecture for CSM modules and CMDB with a return-to-standard approach.
    • Design and structuring of a project roadmap focused on Artificial Intelligence.
    • Presentation and defense of the implementation strategy to Executive Management.
    • Proof of Concept (POC) execution on AI Search, Now Assist and Agentic AI technologies.

    Deliverables

    • AI project roadmap, technical audit report, POC deliverables and ServiceNow surveys.

    Technical environment

    • ServiceNow CSM
    • ERP integration (product and client repository)
    • AI Search
    • Now Assist
    • Agentic AI

    CNP Assurances

    Architect / Technical Lead

    Context

    Deployment of ServiceNow CSM at the French leader in life insurance to support its end customers and partner network. The project centralizes the migration of three legacy business solutions to the ServiceNow platform.

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    Responsibilities

    • Modeling of the organization's complex architecture in the CSM module leveraging ServiceNow's “Service Model Foundation”.
    • Design of the insurance products' data structure.
    • Advanced modeling of case types.
    • Implementation and governance setup for integrations with the group's repositories.

    Deliverables

    • Detailed technical documentation.

    Technical environment

    • ServiceNow CSM coupled with existing ITSM modules
    • API integrations with retry management
    • Monitoring
    • Batch processing

    France Télévision

    Architect

    Context

    Deployment of ServiceNow to plan and track end-to-end on-site services of France TV agents and service providers.

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    Responsibilities

    • POC execution on the FSM module covering preventive and corrective maintenance, as well as quality management.
    • Design of a WSD POC involving campus modeling and implementation of relocation use cases.
    • Drafting of the architecture and technical section for the commercial proposal.
    • Technical defense and presentation of the solution to the client's selection committee.

    Deliverables

    • Commercial proposal.

    Technical environment

    • ServiceNow FSM
    • ServiceNow WSD

    Télévision de France

    Technical Lead

    Context

    Implementation of the automated dispatching feature (Schedule Optimization) to reduce the operational load of dispatchers.

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    Responsibilities

    • Configuration of “Schedule Optimization” within the FSM module to allow mass dispatching of work orders.
    • In-depth modeling of the Foundation and FSM data models.
    • Advanced developments on the dispatchers' workspace.
    • Knowledge transfer management.

    Deliverables

    • Technical documentation.

    Technical environment

    • ServiceNow FSM
    • Schedule Optimization
    • Dispatcher workspace

    INWI

    Technical Lead

    Context

    Support for a major telecom player in Morocco in using CSM and FSM modules for intervention and customer service management.

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    Responsibilities

    • Audits on the CSM/FSM scope and development of strategic recommendations.
    • Facilitation of project scoping workshops in English.
    • Technical design and cost estimation for drafting commercial proposals.
    • Technical leadership on project phases and Third-Party Application Maintenance (TMA).
    • Ensuring platform governance covering scans, monitoring, upgrades and releases.
    • Advanced developments including ServiceNow Mobile and complex API integrations.

    Deliverables

    • Audit reports and technical documentation.

    Technical environment

    • ServiceNow CSM and FSM
    • ServiceNow Mobile
    • SOAP and REST integrations
    • Salesforce
    • PeopleSoft
    • SAP
    • Telecom service orchestration

    LVMH

    Technical Lead

    Context

    IT services and projects management via the ServiceNow platform.

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    Responsibilities

    • Technical leadership within Third-Party Application Maintenance (TMA).
    • Maintaining platform governance including upgrades, releases, scans and monitoring.
    • Leadership of continuous improvement initiatives for the CSDM data model and Service Portfolio Management.
    • Customization and optimization of the financial tracking of IT projects and programs.

    Deliverables

    • Technical documentation.

    Technical environment

    • ServiceNow CSM and SPM
  2. EXPERIENCIT

    20232024

    · ServiceNow consulting

    2 engagements

    COLAS

    Technical Lead

    Context

    IT processes integration and harmonization following the group's acquisition of subsidiaries.

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    Responsibilities

    • Integration (onboarding) of ITSM and SAM practices of new subsidiaries into the group's global instance.
    • Release management including leadership, deployment tracking and communications.
    • Design and implementation of an API-dedicated monitoring solution.
    • Audit, recovery of operations and establishment of governance for MID Servers.

    Deliverables

    • Technical documentation.

    Technical environment

    • ServiceNow ITSM and SAM
    • MID Servers

    GRANT THORNTON

    ITSM Functional Expert

    Context

    Support for a client in aligning and tracking ITIL best practices.

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    Responsibilities

    • Conducting an in-depth audit of the incident management process.
    • Audit of service level management processes.
    • Development of strategic and tactical recommendations.

    Deliverables

    • Audit reports and Standard Operating Procedures (SOPs).

    Technical environment

    • EasyVista
  3. Bolloré Transport & Logistics

    20212023

    · Transport and logistics

    1 engagement

    Bolloré Transport & Logistics

    Lead Developer

    Context

    Migration of the ITSM management system from Serena to ServiceNow. Intervention as a senior developer integrated into the internal team following this migration.

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    Responsibilities

    • Facilitation of training sessions in French and English.
    • Audit of the legacy CSDM data model.
    • Complete redesign of the CSDM data model to align with platform standards.
    • Migration of the Service Portal to the Employee Center.
    • Implementation of group performance management via ServiceNow Performance Analytics.

    Deliverables

    • Audit report and technical documentation.

    Technical environment

    • ServiceNow ITSM
    • Performance Analytics
    • Employee Center
  4. Inova Services Consulting

    20182021

    · IT services and infrastructure

    2 engagements

    Foxtrot International (Bouygues)

    Head of IT Service Desk

    Context

    Management of the IT service desk and lifecycle management of the IT Service Management (ITSM) platform.

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    Responsibilities

    • Integration, configuration and day-to-day administration of ITSM tools (GLPI).
    • Study for the implementation of ServiceNow.
    • Design of technical solutions and definition of functional scopes (scoping).
    • Planning and management of version upgrades and deployments (Go-Live).
    • Creation of materials and facilitation of training sessions to support end-users.

    Technical environment

    • GLPI
    • Microsoft infrastructure

    Inova

    IT Consultant

    Context

    Technical support on the deployment, administration and maintenance of system infrastructures and the collaborative workspace.

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    Responsibilities

    • Administration and operational maintenance of the Microsoft 365 environment.
    • Advanced administration and management of Windows Server infrastructures.
    • Installation, configuration and optimization of Microsoft Exchange, SQL Server and Hyper-V virtual environments.

    Technical environment

    • Microsoft 365
    • Windows Server
    • Microsoft Exchange
    • SQL Server
    • Hyper-V

Open Source

Contributions to the ServiceNow ecosystem

Tools built in the field, to fill gaps encountered on real engagements and released to the community.

  • Duplicate Detector

    Detects duplicate records across a ServiceNow instance, with per-table matching rules and a review step before merging.

    • ServiceNow
    • Fluent
    • JavaScript
    • CMDB
  • Contains One Of

    A query operator that adds “contains one of” matching against a list of values, where the platform otherwise requires one condition per value.

    • ServiceNow
    • JavaScript
    • Query operators
  • ServiceNow Health Mobile

    Mobile instance health monitoring: platform indicators, alerts and integration status, available from ServiceNow Mobile.

    • ServiceNow Mobile
    • Performance Analytics
    • REST

Community

Sharing and passing it on

The ServiceNow community is a collective accelerator: I contribute to it as much as I learn from it.

  • Speaker at ServiceNow events

    Talks at several events across the ServiceNow ecosystem, covering architecture and data modeling.

  • Technical knowledge sharing

    Regular publication of field notes and best practices drawn from real engagements with major accounts.

  • Active community contribution

    Ongoing participation in ServiceNow community discussions, alongside the open source tools published.

Skills

Areas of expertise

Expertise rooted in the ServiceNow platform, extended to architecture, integrations and Artificial Intelligence.

  • ServiceNow

    • ITSM
    • CSM
    • FSM
    • CSDM / CMDB
    • SPM
    • SAM
    • HAM
    • SOM
    • WSD
    • Employee Center
    • Performance Analytics
  • Architecture

    • Target architecture
    • Return to standard
    • Service Model Foundation
    • Data modeling
    • Technical debt audit
    • Technical roadmap
    • Pre-sales
  • Development

    • JavaScript
    • ServiceNow scripting
    • Workspaces
    • ServiceNow Mobile
    • Flow Designer
    • Schedule Optimization
    • Virtual Agent
  • Cloud & Infrastructure

    • ServiceNow SaaS platform
    • MID Servers
    • Microsoft 365
    • Windows Server
    • Microsoft Exchange
    • SQL Server
    • Hyper-V
  • Artificial Intelligence

    • Now Assist
    • AI Search
    • Agentic AI
    • Predictive Intelligence
    • AI POCs and scoping
    • AI roadmap
  • Integrations

    • REST
    • SOAP
    • IntegrationHub
    • Salesforce
    • SAP
    • PeopleSoft
    • Retry management
    • Batch processing
    • API monitoring
  • Leadership

    • Technical leadership
    • Application maintenance leadership
    • Knowledge transfer
    • Training in French and English
    • Executive-level defense
    • Workshop facilitation
    • Diplomacy
    • Autonomy
    • Rigor
  • Methodologies

    • ITIL 4
    • Agile
    • CSDM
    • Release management
    • Platform governance
    • Audit and recommendations
    • Standard Operating Procedures

Certifications

22 ServiceNow and ITIL certifications

Every certification below can be inspected: the official certificate is attached and verifiable.

Flagship credential

ServiceNow Certified Technical Architect

CTA · Issued November 2025 · No. EPS0008135

View certificate

Education

Degrees and languages

  1. Master's in Cybersecurity and Web Technology

    ESATIC

    2018

  2. Bachelor's in Computer Networks and Telecoms

    ESATIC

    2016

Languages

  • French

    Native

  • English

    Fluent

Contact

Let's talk about your ServiceNow project

Target architecture, platform audit, complex implementation or AI scoping: I'm open to conversations about your transformation challenges.