William Quoc Phong N. - Freelancer – Data & AI

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Berlin, Germany

Experience

Apr 2025 - Aug 2025

5 months

Germany

Remote

Freelancer – Lead Business Analyst + Frontend PO

European Bank – NDA signed - Cashback Function

Lead frontend business analyst for implementing the cashback feature in the banking app
Designing and modeling processes (chargeback, return, payout, system communication, etc.)
API alignment and coordination
Stakeholder management with IT, business units, and backend
Roadmapping, backlog management, release planning
Testing and documentation
Requirements management & requirements analysis
Coordination and functional/technical alignment with domain, system, and data teams
(Tools: Confluence, JIRA, Figma, Miro, draw.io)

Dec 2024 - Feb 2025

3 months

Germany

Freelancer – Business Consultant & Market Analyst

Ocoten Engineering

Project management & stakeholder management
Market entry analysis for Southeast Asia e-scooters (sourcing + sales)
Development of a KPI dashboard for corporate management (KPIs: HR + financial data)
Creation of a modular tool to quantify a market entry ranking
Price & scenario analysis
(Tools: MS Office, Power BI)

Jul 2024 - Feb 2025

8 months

Germany

Freelancer – BI Consultant (Data & Business Analyst & BI Developer)

Otto Klumpp GmbH

Project management & stakeholder management
Data modeling
Dashboard creation and visualization
Data analysis (HR, sales, finance, and production data)
Data administration and management for Qlik Sense
Coaching end users
Writing requirements
(Tools: Oracle SQL Developer, Qlik Sense, ABAS, Microsoft SQL, BAPTECH, PROSES)

Dec 2023 - Mar 2025

1 year 4 months

Germany

Freelancer – Instructor

Datasmart Point

AI & machine learning
Power BI
Business analytics & data analytics
Statistics
Data interfaces/data collection
Databases (SQL/NoSQL)
Data analysis and visualization with Python/Excel
(Tools: Power BI, Excel, Python, Postgres, SQLite)

Jun 2023 - Jun 2024

1 year 1 month

Germany

Freelancer – Data Coach/Data Analyst

Hanseatic Statistics

Coaching and supporting students and professors in statistical data analyses
Scripting data analyses
Code review
Designing statistical studies
Interpreting statistical results
Clients from the fields of medicine, business, psychology, and social sciences
(Tools: R, SPSS Statistics, Jamovi, JASP, Python)

Nov 2022 - Apr 2023

6 months

Germany

Freelancer – Management Consultant

Growth Levers Consulting GmbH / Growth Levers VN

Market research and market analysis
Rolling out an e-contract system (Viettel)
Managing and recruiting partners and freelancers
Setting up an accounting structure and guidelines
Competitive analysis
Business case analysis
Translation and cross-cultural consulting
Networking in Vietnam's tech and medical hubs
Planning, organizing, and administrating the launch of a Vietnamese entity
(Tools: MS Office, Google Workspace/Analytics, FB Ads, Power BI)

Feb 2021 - Apr 2025

4 years 3 months

Germany

Freelancer - Senior/Lead Business & Data Analyst

Deutsche Kreditbank AG

Lead Business Analyst for deposit guarantee reporting
Data migration and enrichment of the data access layer for deposit guarantee reports
Stakeholder management
Testing and documentation
Data analysis of the deposit guarantee
Coordination and technical/business alignment with business, system, and data teams
(Tools: Oracle, AB Initio BRE, JIRA, Confluence, SAP Power Designer)
Lead Business Analyst for integrating securities data from WP-Dynamic into ABACUS
Creating HGB and IFRS reports from WP-Dynamic for securities
Stakeholder management
Testing and documentation
Data analysis of securities data
Coordination and technical/business alignment with business, system, and data teams
(Tools: Oracle, AB Initio BRE, JIRA, Confluence, SAP Power Designer, WP Dynamics, WP-Bilanz)
Lead Business Analyst for restructuring processing (VDS)
Developing SQL reports based on own funds exposure
Stakeholder management
Testing and documentation
Coordination and technical/business alignment with the project manager, business, and data teams
(Tools: Oracle, JIRA, Confluence, SAP Power Designer)
Implementation and support during the ABACUS reporting transformation
Data mapping and analysis of various source systems into the DWH
Financial and functional analysis of requirements for implementation
Debugging, business and technical testing of implementations
Advising the finance-tech team on solutions in finance and regulatory reporting
Coordination and alignment with technical developers (ETL), business requirements, and data modeling
Data migration of accounting into the SAP accounting system of BayernLB (Lead Business Analyst)
Lead for digital process solutions in finance
(Tools: Oracle, AB Initio BRE, OSPlus, Access, JIRA, Confluence, SAP Power Designer, Micro Strategy, RStudio)
Developing a Python script for detecting and reporting incorrect postings
Automated data evaluation and reporting of new account notifications
Testing & documentation
Project organization, user story, case analysis, stakeholder analysis
(Tools: Oracle SQL Developer, MS Power BI, OSPlus, JIRA, Confluence, SAP Power Designer, Microsoft Visual Studio Code, Python)

Oct 2019 - Jan 2021

1 year 4 months

Frankfurt, Germany

Associate - Financial Services - Risk Banking/Trading & Treasury

KPMG

Mapping and data analysis of input data from various source systems for simulating NII and delta NII
Setting up an SQL-based DQ framework for the IRRBB database
Business testing of technical implementation projects and data migrations
Developing SQL reporting macros/dashboards and training the end users
(Tools: MS-Office, Oracle SQL-Developer, Squirrel, Notepad ++, JIRA, Tableau, MUREX)
Supporting the design and implementation of an economic risk capital model for modeling mortgage loans (bootstrapping and Monte Carlo simulation)
Creating an automated document overview structure
(Tools: MS Office, VBA, MS Power BI)
Data analysis, validation, and evaluation of LCR effects from the ABACUS system
(Tools: MS Office, MS Power BI)

Oct 2018 - Dec 2018

3 months

Dresden, Germany

Freelancer – International Strategy Consultant

Dreberis GmbH

Market entry projects for infrastructure, water/wastewater management, education, Industry 4.0, and smart cities in Eastern Europe
Market research and market analyses
Project documentation
Management consulting on regulations of individual target countries
Coordinating foreign trips and meetings with potential partner companies