William Nguyen - Senior/Lead Business Analyst & AI Workflow Consultant | Requirements Engineering | BI | Workflow Automation

Q: Where is William based?

William is based in Berlin, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does William speak?

William speaks the following languages: German (Native), English (Advanced), Spanish (Advanced), French (Advanced), Italian (Advanced), Vietnamese (Advanced) .

Q: How many years of experience does William have?

William has at least 7 years of experience. During this time, William has worked in at least 11 different roles and for 11 different companies . The average length of individual experience is 1 year and 7 months . Note that William may not have shared all experience and actually has more experience.

Q: What is William's latest experience?

William's most recent position is Senior Business Analyst/Requirements Engineer at Finanzen.Net/Finanzen.Zero .

Q: What companies has William worked for in recent years?

In recent years, William has worked for Finanzen.Net/Finanzen.Zero , Horvath & Partner GmbH , German Bank , OCOTEN Engineering , and Otto Klumpp GmbH .

Q: Which industries is William most experienced in?

William is most experienced in industries like Banking and Finance , Professional Services , and Education . William also has some experience in Information Technology , Manufacturing , and Retail .

Q: Which business areas is William most experienced in?

William is most experienced in business areas like Information Technology , Business Intelligence , and Finance . William also has some experience in Product Development , Research and Development , and Project Management .

Q: Which industries has William worked in recently?

William has recently worked in industries like Banking and Finance , Professional Services , and Education .

Q: Which business areas has William worked in recently?

William has recently worked in business areas like Information Technology , Business Intelligence , and Finance .

Recommended expert

Berlin, Germany

Check rate

Experience

Jan 2026 - Present

5 months

Karlsruhe, Germany

Remote

Senior Business Analyst/Requirements Engineer

Finanzen.Net/Finanzen.Zero

Analyse complex business processes and end-to-end user journeys in digital product and platform environments
Gather, structure and prioritize business and technical requirements (functional/non-functional requirements)
Translate business objectives into actionable requirements, user stories and acceptance criteria
Conduct stakeholder interviews, workshops and reviews with business units, IT, UX and management
Create and maintain requirement artifacts (BRD, FRD, user stories, process models, decision papers)
Ensure consistency between business needs, technical implementation and product vision
Work closely with development teams to clarify business questions during implementation
Support impact analyses (A/B tests), change requests and scope management
Quality-assure implemented requirements including acceptance criteria and functional tests
Advise on further development of product strategy and roadmap structure
Prioritize backlog items based on business value
Define and refine product goals, KPIs, MVP definitions and other success metrics
Evaluate new features, tools and initiatives from user and business perspectives
Facilitate decision-making between business, product and technology
Support go-to-market planning and product positioning
Act as a sparring partner for product and stakeholder decisions at management level
Create dashboards, data models, BI report administration and data analysis using Power BI

Jan 2026 - Mar 2026

3 months

Berlin, Germany

Remote

AI-Automation Consultant

Horvath & Partner GmbH

Analyse ongoing customer projects (objectives, scope, pain points, maturity level)
Derive suitable follow-up solutions based on defined solution clusters
Provide a structured justification of business value for each cross-selling recommendation
Develop a rule-based decision and prioritization model
Create clear, sales-driven arguments (trusted advisor logic)
Build reusable templates, meta-prompts and decision logic
Ensure quality in terms of consistency, relevance and feasibility
Closely coordinate with project management, sales and management
Set up Dynamics CRM triggers and email automation via follow-up solutions

Apr 2025 - Dec 2025

9 months

Germany

Remote

Product Owner Frontend

German Bank

Frontend lead business analyst for implementing the Payback feature in the banking app
Design and model 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
Requirement management and requirements analysis
Coordinate and align with business, system and data teams on business and technical matters
Tools: Confluence, JIRA, Figma, Miro, draw.io

Dec 2024 - Feb 2025

3 months

Germany

Business Consultant & Market Analyst

OCOTEN Engineering

Project management and stakeholder management
Market entry analysis for SEA for electric scooters (sourcing and sales)
Develop a KPI dashboard for company management (HR and financial data)
Create a modular tool to quantify market entry ranking
Price and scenario analysis
Tools: MS Office, Power BI

Jul 2024 - Feb 2025

8 months

Germany

BI Consultant (Data & Business Analyst & BI Developer)

Otto Klumpp GmbH

Project management and stakeholder management for QlikSense in cooperation with Studicon
Data modeling
Dashboard creation and visualization
Data analysis (HR, sales, finance and production data)
Data administration and management for QlikSense
End-user coaching
Create requirements
Tools: Oracle SQL Developer, QlikSense, ABAS, Microsoft SQL, BAPTECH, PROSES

Dec 2023 - Mar 2025

1 year 4 months

Germany

Lecturer

DATASMART POINT

Teaching and training in AI and machine learning
Training in Power BI
Training in business analytics and data analytics
Training in statistics
Training in data interfaces and data collection
Training in databases (SQL and NoSQL)
Data analysis and visualization with Python and Excel
Tools: Power BI, Excel, Python, Postgres, SQLite

Jun 2023 - Jun 2024

1 year 1 month

Germany

Data Coach / Data Analyst

Hanseatic Statistics

Coaching and support for students and professors in statistical data analyses
Scripting data analyses
Code review
Designing statistical studies
Interpreting statistical results
Advising clients in medicine, business, psychology, and social sciences
Tools: R, SPSS Statistics, Jamovi, JASP, Python

Nov 2022 - Apr 2023

6 months

Germany

Management Consultant

Growth Levers Consulting GmbH / Growth Levers VN

Market research and market analysis for Babynation/MATIDA
Rolling out an e-contract system (Viettel)
Managing and recruiting partners and freelancers
Establishing an accounting structure and guideline
Competitive analysis
Business case analysis
Providing translation and intercultural consulting
Networking in Vietnam’s tech hub and medical hubs
Planning, organizing, and administering the setup of a Vietnamese entity
Tools: MS Office, Google Office/Analytics, Facebook Ads, Power BI

Feb 2021 - Apr 2025

4 years 3 months

Germany

Senior/Lead Business & Data Analyst

Deutsche Kreditbank AG

Lead business analyst for deposit protection reporting and data migration
Data enrichment of the access layer for deposit protection reports
Lead business analyst for integrating securities data from WP-Dynamic into Abacus
Creating HGB and IFRS reports from WP-Dynamic for securities
Lead business analyst for restructuring processing (Valuation Data Set)
Developing SQL reports based on own funds exposure
Implementing and supporting the transformation of Abacus reporting
Data mapping and analysis of various source systems into the data warehouse
Financial and business analysis of requirements for implementation
Debugging, functional and technical testing of implementations
Advising the finance-tech team on finance, regulatory, and reporting solutions
Data migration of accounting into BayernLB's SAP accounting system
Developing a Python script to detect and report incorrect postings
Automated data analysis and reporting of new account notifications
Project organization, user stories, case analysis, stakeholder analysis
Stakeholder management and functional and technical coordination with business, system, and data teams
Testing and documentation
Tools: Oracle, AB Initio BRE, OSPlus, Access, Oracle SQL Developer, MS Power BI, SAP Power Designer, MicroStrategy, RStudio, WP-Dynamics, WP-Bilanz, JIRA, Confluence, 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 analyzing input data from various source systems for NII and delta NII simulation (DZ Bank)
Building an SQL-based data quality framework for the IRRBB database
Functional testing of technical implementation projects and data migrations
Developing SQL reporting macros and dashboards and training end users
Supporting the design and implementation of an economic risk capital model for mortgage loans (bootstrapping and Monte Carlo simulation) (Commerzbank AG)
Creating an automated document overview structure
Analyzing, validating, and evaluating LCR effects from the Abacus system (Commerzbank AG)
Tools: MS Office, Oracle SQL Developer, Squirrel, Notepad++, JIRA, Tableau, Murex, VBA, MS Power BI

Oct 2018 - Dec 2018

3 months

Dresden, Germany

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 analysis
Project documentation
Management consulting on regulations in each target country
Coordination of overseas travel and meetings with potential partner companies

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Banking and Finance, Professional Services, Education, Information Technology, Manufacturing, and Retail.

Banking and Finance

Professional Services

Education

Information Technology

Manufacturing

Retail

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Business Intelligence, Finance, Product Development, Project Management, and Research and Development.

Information Technology

Business Intelligence

Finance

Product Development

Project Management

Research and Development

Skills

Oracle Sql Developer
Eikon Reuters
Squirrel Sql
Osplus
Morning Star Direct
Sap Powerdesigner
Msci Esg-Manager
Jira/Confluence
Ab Initio (Bre+Mhub)
Qliksense
Sap Dw Cloud
Gitbash/Github
Sapbw4/Hana
Anaconda
Spyder Ide
Jupyter Notebook
Microsoft Power Bi
Pyspark
Tableau
Rstudio
Pycharm
Microsoft Vs Code
Wp-Dynamic
Mongodb
Microsoft Sql Server
Redshift (Amazon)
Openai
Chatgpt
Microsoft Copilot
Big Query (Google)
Dbt
Miro
Figma
Sql
Python
Excel
R
Power Query
Dax
Power Pivot
Nosql
Qlik-Scripting

Languages

German

Native

English

Advanced

Spanish

Advanced

French

Advanced

Italian

Advanced

...and 1 more

Education

Feb 2018 - Aug 2018

Vilnius Universitetas

Master – Erasmus Program, Erasmus Program – "Strategic Business Management & Finance" · Strategic Business Management & Finance · Lithuania

Oct 2016 - Sep 2019

Brandenburgische Universität Cottbus-Senftenberg

Master of Science, M.Sc. in Business Administration – specialisation: "Investment & Finance" and "Market-Oriented" · Business Administration · Cottbus, Germany

Feb 2014 - Jun 2014

Universita Politecnica delle Marche

Bachelor – Erasmus Program, Erasmus Program – "International Business & Communication" · International Business & Communication · Ancona, Italy

...and 1 more

Certifications & licenses

Stock Exchange License (BHV)

Real Estate Agent (IHK)

Power BI – Microsoft Certification – PL300

Certificate for Intercultural Competence

Statistics

Experience

Total positions 11

Experience in Banking and Finance 5.5 y

Avg length 11 m

Longest experience 4 y 2 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Senior Business Analyst/Requirements Engineer, AI-Automation Consultant, Product Owner Frontend

Main industries Banking and Finance, Professional Services, Education

Main business areas Information Technology, Business Intelligence, Finance

Qualifications

Highest degree Master

Certifications earned 4

Profile

Created

August 2025

Last Update

May 2026

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Frequently asked questions

Have questions? Find more information here.

Where is William based?

William is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.

What languages does William speak?

William speaks the following languages: German (Native), English (Advanced), Spanish (Advanced), French (Advanced), Italian (Advanced), Vietnamese (Advanced).

How many years of experience does William have?

William has at least 7 years of experience. During this time, William has worked in at least 11 different roles and for 11 different companies. The average length of individual experience is 1 year and 7 months. Note that William may not have shared all experience and actually has more experience.

What roles would William be best suited for?

Based on recent experience, William would be well-suited for roles such as: Senior Business Analyst/Requirements Engineer, AI-Automation Consultant, Product Owner Frontend.

What is William's latest experience?

William's most recent position is Senior Business Analyst/Requirements Engineer at Finanzen.Net/Finanzen.Zero.

What companies has William worked for in recent years?

In recent years, William has worked for Finanzen.Net/Finanzen.Zero, Horvath & Partner GmbH, German Bank, OCOTEN Engineering, and Otto Klumpp GmbH.

Which industries is William most experienced in?

William is most experienced in industries like Banking and Finance, Professional Services, and Education. William also has some experience in Information Technology, Manufacturing, and Retail.

Which business areas is William most experienced in?

William is most experienced in business areas like Information Technology, Business Intelligence, and Finance. William also has some experience in Product Development, Research and Development, and Project Management.

Which industries has William worked in recently?

William has recently worked in industries like Banking and Finance, Professional Services, and Education.

Which business areas has William worked in recently?

William has recently worked in business areas like Information Technology, Business Intelligence, and Finance.

What is William's education?

William holds a Master in Strategic Business Management & Finance from Vilnius Universitetas, a Master in Business Administration from Brandenburgische Universität Cottbus-Senftenberg, a Bachelor in International Business & Communication from Universita Politecnica delle Marche and a Bachelor in Business Administration from Universität Bremen.

Does William have any certificates?

William has 4 certificates. Among them, these include: Stock Exchange License (BHV), Real Estate Agent (IHK), and Power BI – Microsoft Certification – PL300.

What is the availability of William?

William will be available full-time from June 2026.

What is the rate of William?

William's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.