n
nauvalzulfikar

Nauval Z

@nauvalzulfikar
4,9(6)

RAG chatbots and AI agents for teams where a wrong answer is expensive

Japan
Duits, Indonesisch, Engels, Japans
Sommige informatie wordt in het Engels weergegeven.
Over mij
I build RAG chatbots and AI agents for companies where a wrong answer is expensive: banks, government, regulated industry. 5+ years in data science. Lead Data Scientist at an OJK-regulated bank (credit-risk NLP, +5.3% portfolio return). Data automation for a government agency (45% faster, 80% less manual work). MSc Business Analytics, Aston University UK, First Class, full scholarship. Two peer-reviewed papers. Python, LangChain, AWS, Docker, PySpark. Every build ships with an eval set, citations and handover docs, not a demo. Send 3 sample docs and I'll tell you if RAG is the right answer.... Lees meer

Skills

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nauvalzulfikar
Nauval Z
offline • 

Bekijk mijn diensten

AI chatbot development
I will build ai chatbot, rag chatbot, langchain chatbot over your documents
AI-integraties
I will build ai agent, ai automation, n8n workflow automation for your reports

Werkervaring

Bandung

Data Scientist & Project Manager — Dinas PUTR Kab. Bandung

Bandung • Fulltime

Sep 2022 - Present • 4 yrs 1 mo

Automated ETL pipelines and Power BI dashboards that replaced manual data entry across multiple bureaus. Embedded model governance and audit trails into government data workflows, so every number in a report can be traced back to its source. Delivered 45% faster project delivery and a 20% gain in data efficiency. Led cross-functional Agile teams in Jira. Stack: Python, PySpark, AWS, Power BI.

SyncWell_- Know Yourself

Marketing Data Scientist (Internship)

SyncWell - Know Yourself

Jul 2024 - Sep 2024 • 2 mos

Built predictive ML models for customer engagement and campaign targeting, so marketing spend went to the segments most likely to convert. Designed and ran A/B tests and implemented automated campaign trigger logic. Achieved +40% CTR and +22% follower growth on owned channels. Stack: Python, SQL, Tableau, Salesforce.

PCOS_Challenge

Strategic Data Scientist Specialist (Internship)

PCOS Challenge

Jun 2024 - Aug 2024 • 2 mos

Developed a customer attribution model linking donor touchpoints to conversions, so the team could see which channels actually drove giving. Automated the report-extraction pipeline and cut manual workload by 80%. Stack: Python, Streamlit, Power BI, PySpark, Hadoop.

6 Reviews
4,9

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Specificering van de beoordeling
  • Communicatieniveau van de freelancer
    5
  • Aanbevelingswaardig
    4,8
  • Dienst zoals beschreven
    4,8
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    joseantoniog602

    ES

    Spanje

    5

    Perfect, good work and communication

    US$ 50

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    rtraeger

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    5

    Great work very fast.

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    keneseu

    SG

    Singapore

    5

    exactly what i wanted. fast.

    US$ 50

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    hozonkai

    US

    Verenigde Staten

    4,3

    Very good and on time

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    5

    Outstanding work, exceed my expectations. I will continue to use seller on this and other projects.

    US$ 50

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