Paolo GrillyCyber & Engineering
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PG / 2026Rouen · France · Remote & on siteFreelance Thu & Fri · full time from January 2027

Security that holds up in production.

I help you deploy endpoint protection, build an actionable SIEM and secure your infrastructure. From the initial assessment to handing it over to your team.

Paolo Grilly
Fig. 01 — Paolo Grilly, Rouen

§ 01EXPERTISE

Protect. Observe. Make it reliable.

Practical engagements grounded in your team’s needs and production constraints.

Protect

EDR · Identity

Stop an attack from getting in and spreading: advanced protection on every computer and server (EDR), and locked-down accounts and access.

01

EDR & endpoint protection

Windows/Linux rollout, CrowdStrike Falcon policies, Firewall Management and Device Control. GPO/Ansible automation, coverage validation and team handover.

What you get
  • Tuned EDR, firewall and Device Control policies
  • Repeatable GPO / Ansible rollout
  • Fleet coverage verification
  • Documentation and operations workshops
02

Identity & secure infrastructure

Active Directory Tier 0, Entra ID, Conditional Access and PIM. Linux/Windows hardening, network segmentation, audit remediation and vulnerability management.

What you get
  • Prioritised audit remediation plan
  • Conditional Access tested, then enforced
  • PIM and privileged accounts under control
  • Documented Tier 0 hardening

Observe

SIEM · Logs

See what is happening and be alerted in time: every trace gathered in one place (SIEM), with alerts that make sense.

03

SIEM & actionable detection

Architecture, collection, correlation, detection rules and dashboards. ELK-to-Wazuh migration, log retention and integration with your existing alerting pipeline.

What you get
  • Architecture and collection pipelines
  • Detection rules and dashboards
  • Defined log retention
  • Backup and recovery procedures

Make it reliable

Automation · IaC

Keep everything running in production: infrastructure described and versioned, repeatable deployments and tested backups.

04

Automation & reliability

Infrastructure as Code, migrations, CI/CD and observability. Repeatable deployments, tested backups and production-ready runbooks.

What you get
  • Infrastructure described and versioned as code
  • CI/CD with deployment evidence
  • Tested backups
  • Operations runbooks
Integrations & toolsMore than 50 tools, from EDR to code.See integrations & tools

§ 02PROJECTS

Systems built, not just sketched.

Professional engagements (end clients anonymised), research and personal engineering. Every project makes its context clear.

P–01Cybersecurity

Extia

Professional engagement · insurance

Windows & Linux endpoint protection

Industrialising EDR coverage across approximately 1,000 endpoints.

  • HDS-certified environment (health data)
  • About 1,000 Windows and Linux endpoints covered
  • Tuned EDR, firewall and Device Control policies
  • Repeatable rollout through GPO and Ansible
CrowdStrike FalconGPOAnsibleWindowsLinux
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P–02Cybersecurity

Extia

Professional engagements & personal infrastructure

From logs to actionable alerts

Building a SIEM pipeline from collection to operations.

  • Highly available Wazuh architecture
  • Actionable detection rules and dashboards
  • Retention, encrypted backups and tested recovery
WazuhVictoriaLogsGrafanaAlertmanager
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P–03Cybersecurity

Codbip

Personal project · production lab

EDR CODBIP · policy control

Connecting SIEM visibility with versioned network policies.

  • Inventory, signals and alerts in one cockpit
  • Real preview before every policy change
  • Guarded rollback and an action log
Next.jsAnsiblePulumiDokployNetBird
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P–04Cybersecurity

ExtiaCapgemini

Professional engagements · telecoms & luxury

Identity, privileges & governance

Hardening Entra ID and Active Directory identity services.

  • Audit remediation within an ISO 27001 approach
  • Conditional Access tested report-only, then enforced
  • Active Directory Tier 0, GPO, DNS and PKI
Entra IDPIMISO 27001Active DirectoryTier 0
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P–05Infrastructure

Aimaira

Final-year project & apprenticeship · software publisher

Modernisation with operational control

Architecture, cloud migration and HAProxy load balancing.

  • About 67% lower costs with HAProxy
  • SQL Server Always On and a dedicated preproduction
  • Jenkins CI/CD and a validated migration strategy
AzureHAProxySQL Always OnJenkinsLinux
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P–06Infrastructure

CESI

Engineering project · education

A segmented network infrastructure

VPN, firewall, domain services and a DMZ.

  • pfSense firewall and VPN tunnels
  • Domain, proxy and controlled access
  • Web services isolated in a DMZ
pfSenseVPNActive DirectoryIISDMZ
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P–07Blockchain

ÉTS Montréal

Research · ÉTS Montréal · 2024

Verifiable voting on Ethereum

A DApp exploring integrity, transparency and auditability.

  • Research internship at the FUSEE lab
  • Complete application: interface, API and blockchain
  • Report and scientific presentation in English
EthereumSoliditySepoliaFastAPIReact
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P–08Blockchain

PAOLOMININGCodbip

Entrepreneurship · since 2021

Blockchain infrastructure & monitoring

Operating nodes, wallets and specialised hardware.

  • Independent activity since 2021
  • Hardware monitoring and energy optimisation
  • Wallets isolated in virtual machines
PoW / PoSLinuxHyper-VMonitoring
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P–09Development

CESI

Software project · education

Back up, replay, verify

A multithreaded, multi-job backup application.

  • Several backups running concurrently
  • Job replay and daily logs
  • Continuous integration with Azure DevOps
MVVMMultithreadingAzure DevOpsBackup
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P–10Development

CESI

Big Data project · education

From data to a dashboard

An ETL pipeline, Hive warehouse and Power BI analysis.

  • PostgreSQL and CSV sources consolidated
  • Hive data warehouse
  • Power BI dashboards
TalendPostgreSQLHivePower BI
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P–11Development

CESI

Programming project · education

Experimenting with sustainable mobility

A demonstrator for mobility solutions across different territories.

  • Team response to an ADEME call
  • Passenger and freight mobility
  • Demonstrators tailored to each territory
PrototypingTeamworkSustainable mobility
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P–12Development

Codbip

Entrepreneurship · personal work

Codbip · products & infrastructure

Web applications and versioned delivery infrastructure.

  • Web applications in production
  • Immutable images and deployment proof
  • Centralised secrets and a private network
Next.jsDirectusCI/CDInfisicalPulumi
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§ 03EXPERIENCE

Practical experience before promises.

An engineering degree, critical environments and a drive to build things that last.

  1. June → October 2026

    Capgemini

    Luxury-sector client · professional engagement

    Infrastructure & security engineer

    Critical identity infrastructure: Active Directory, Tier 0, Windows Server, GPO, DNS, PKI and PowerShell. Risk analysis, remediation, build work and coordination with security and operations teams.

  2. April → June 2026

    Extia

    Telecoms-sector client · professional engagement

    M365 / Entra ID security consultant

    Audit remediation within an ISO 27001 approach: Conditional Access, Identity Protection, PIM, sign-in analysis and controlled external sharing. Microsoft Graph PowerShell automation, verification and documentation.

  3. Sept. 2025 → April 2026

    Extia

    Insurance-sector client · professional engagement

    Systems & security consultant

    HDS-certified environment (French health-data hosting). CrowdStrike across nearly 1,000 endpoints, firewalling and Device Control, Wazuh SIEM, Linux/Windows hardening, Debian/Oracle Linux migrations, segmentation, Nagios monitoring and operations-team handover.

  4. 2022 → 2025

    Aimaira

    Software for higher education

    Systems & networks engineer · apprenticeship

    Operating ERP infrastructure, Wi-Fi redesign, Azure cloud, HAProxy, SQL Server Always On, Jenkins CI/CD and architecture modernisation as a final-year project. Incident management, targeted API security work against the OWASP Top 10, and documentation.

  5. Summer 2024

    ÉTS Montréal

    ÉTS Montréal · FUSEE · Mitacs Globalink

    Blockchain & distributed-systems research

    International research internship: a secure blockchain-based voting application. Data integrity, traceability, testing and a scientific presentation in English.

    FUSEE Lab
  6. Since 2021

    Codbip

    PAOLOMINING · later Codbip products

    Independent entrepreneur · blockchain

    Specialised hardware, systems and blockchain protocol operations. Web-product development, infrastructure automation, monitoring and operations.

  7. June → July 2021

    Collins Aerospace

    Industrial experience

    Worker internship · aerospace industry

    Learning aerospace-parts manufacturing processes, industrial practices and how production teams work.

  8. March → April 2016

    Hardware & IT support

    Work-experience placement · IT

    Component assembly, diagnosis, vulnerability awareness and security advice for users.

Education & certifications

  1. 2025

    CESI Rouen

    CESI Rouen

    Computer engineering degree, cybersecurity specialisation

    Work-study programme using problem-based learning: software development, cybersecurity, AI and information systems, in teams and project mode.

  2. 2025

    ETS

    ETS

    TOEIC · 910/990

    Advanced professional English (B2+).

  3. 2024

    Mitacs · ÉTS Montréal

    Mitacs · ÉTS Montréal

    Mitacs Globalink Research Internship

    Four-month international research programme at the FUSEE lab, ÉTS Montréal.

  4. 2020–2022

    INSA Hauts-de-France

    INSA Hauts-de-France

    Scientific preparatory programme

    Mathematics, algebra, wave physics, optics and electromagnetism, with a first hands-on practice of computing and software development.

  5. 2020

    Lycée Delamare Deboutteville

    Lycée Delamare Deboutteville

    French scientific baccalauréat, engineering sciences · Highest honours

    Physics, mathematics, mechanics, electronics and computing.

Native French · Professional English, TOEIC 910/990 · Spanish B1

Download my CV
A street in Rouen with Notre-Dame cathedral in the background
Fig. 02 — Based in Rouen, France · remote and on-site engagements

§ 04ABOUT

Engineer and builder.

I’m Paolo, a computer engineering graduate from CESI Rouen. My experience connects systems, networks, cybersecurity and software development. I enjoy understanding infrastructure end to end, automating repeatable work and leaving teams with a solution they can operate.

Through Codbip, I also build web products and production infrastructure. Blockchain research in Montréal gave me another perspective on trust, traceability and distributed systems.

  • CrowdStrikeEDR · SIEM
  • WazuhSIEM
  • SentinelOneEDR · SIEM
  • SplunkSIEM
  • HarfangLabEDR
  • DefenderEDR
  • ElasticSIEM
  • GraylogSIEM
  • SekoiaSIEM
  • WithSecureEDR
  • Cortex XDREDR
EDR and SIEM tools deployed, operated or evaluated on engagements

§ 05LET’S TALK ABOUT YOUR PROJECT

Your security tools should work together.

Endpoint protection, SIEM, identity or infrastructure: let’s start with your environment and what you need.

An initial conversation to scope your needs, with no obligation.

Availability

Until 31 December 2026

  1. MonOn assignment
  2. TueOn assignment
  3. WedOn assignment

From January 2027

Full-time freelance, 5 days a week.

Click a free day to suggest a call.

Every contact request gets a reply within 24 hours.