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Jonathan N.JN

Jonathan N.

Expert Data Quality | OSINT & Due Diligence | AI

€300/day
Liège, BE
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jonathan

🚀 Expert Lead-Flow: Automation & HubSpot Synchronization

Delegate complexity and transform your lead flows into sales machines.

Do you manage large volumes (CSV, raw feeds)? Is manual import hindering your growth? I install a proprietary synchronization engine acting as an intelligent interface to your HubSpot CRM.

💎 Masterclass of my Private System:

• Universal Mapping: Auto-recognition of your columns (Emails, Phones, Budgets, Cities) regardless of language or format. The system adapts to your data.
• Surgical Cleaning: Auto-normalization of phone numbers and algorithmic correction of formats before injection. Your CRM stays 100% clean.
• Business Generation (Pipeline Ready): Creation of contacts without duplicates and automatic generation of an associated Deal for immediate sales action.
• Security & Protection: Strict filtering (Top 20 essential fields) to prevent pollution of your infrastructure.

🛡️ Flexibility & Processing Rigor

I adapt to your infrastructure for complete simplicity:

• Dedicated API Endpoint: For complete automation, send your documents to my secure API URL. My engine processes and synchronizes your feeds in real-time.
• Google Drive "Serenity" Option: Deposit your raw files on a secure Drive, my automation takes care of the rest.
• Verification (SLA 24h-48h): Each feed benefits from expert monitoring. Within 24h to 48h, I validate the integrity of the processing to ensure flawless injection.

📈 Your concrete benefits:

• Time Savings: No more hours lost on Excel.
• High-Quality Data: Normalized and usable CRM database.
• Scalability: Instant absorption of thousands of leads.

Don't let technicalities slow down your sales any longer. Contact me to activate your custom automation engine.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Freelance
    Expert Data Automation – Multilingual Intelligence & CRM Cleaning
    CONSULTING AND AUDITS
    February 2026 - Today (6 months)
    Liège, Belgium
    Evolution of the middleware into a "Zero-Touch" import solution for HubSpot, capable of handling complex international data flows.
    Key achievements:
    Advanced Data Cleaning Engine: Complete automation of incoming data cleaning (normalization of proper nouns, correction of international phone formats, intelligent duplicate removal).
    Multilingual Intelligence (Auto-Mapping): Development of a column recognition system supporting 6 languages (FR, EN, ES, DE, PT, NL), allowing file imports without manual header renaming.
    High Availability API Interface: Optimization of the FastAPI API to ensure minimal latency and proactive error handling through detailed logs.
    Strategic Support: Advising marketing teams on structuring their CRM data and maximizing the quality of their contact database.
    Results: Full autonomy for non-technical teams during data imports and guarantee of a 100% clean and usable CRM database.
    Data Quality Annotation de données OSINT & Due Diligence Architecture RAG Automation Python

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Education

  • Due Diligence Numérique, OSINT & Investigations
    Expertise Technique
    2026
    Développement et déploiement de méthodologies d'investigation OSINT. Conception d'un système automatisé de Trust Scoring pour évaluer l'autorité des sources. Focus sur l'intégrité des données et le recoupement multi-sources pour garantir des audits numériques à haute fiabilité.
  • Spécialisation Annotation & Intelligence Artificielle
    Expertise Technique
    2026
    Expertise avancée en fiabilité des données pour l'IA. Architecture de workflows complexes utilisant LlamaIndex et Groq. Spécialisation en RLHF (Apprentissage par renforcement à partir du feedback humain) et annotation technique pour réduire les hallucinations et optimiser la précision des modèles en environnement de production.

Skill set

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