William Nguyen - Product Owner Frontend

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 , German Bank , Horvath & Partner GmbH , 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 (IT) , Manufacturing , and Retail .

Q: Which business areas is William most experienced in?

William is most experienced in business areas like Information Technology (IT) , Business Intelligence , and Finance . William also has some experience in Quality Assurance (QA) , Sales , and Research and Development (R&D) .

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 (IT) , Business Intelligence , and Finance .

Recommended expert

Berlin, Germany

Experience

Jan 2026 - Feb 2026

2 months

Karlsruhe, Germany

Remote

Senior Business Analyst/Requirements Engineer

Finanzen.Net/Finanzen.Zero

Analyze complex business processes and end-to-end user journeys in digital product and platform environments
Gather, structure, and prioritize functional and technical requirements (Functional / Non-Functional Requirements)
Translate business goals 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
Collaborate closely with development teams to clarify functional questions during implementation
Support impact analyses (A/B tests), change requests, and scope management
Perform quality assurance of implemented requirements, including acceptance criteria and user testing
Advise on product strategy development and roadmap structure
Prioritize backlog items based on business value
Define and refine product goals, KPIs, MVP definition, and other success metrics
Evaluate new features, tools, and initiatives from user and business perspectives
Mediate between business, product, and technology for decision-making
Assist with go-to-market considerations and product positioning
Serve as a sparring partner for product and stakeholder decisions at management level
Create dashboards, model data, administer BI reports, and analyze data using Power BI

Apr 2025 - Aug 2025

5 months

Germany

Product Owner Frontend

German Bank

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

Jan 2025 - Jan 2026

1 year 1 month

Berlin, Germany

Remote

AI-Automation Consultant

Horvath & Partner GmbH

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

Dec 2024 - Feb 2025

3 months

Germany

Business Consultant & Market Analyst

OCOTEN Engineering

Project and stakeholder management
Market entry analysis for SEA for electric scooters (sourcing and sales)
Created a KPI dashboard for corporate management (HR and financial data)
Developed a modular tool to quantify a 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 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
Coaching end users
Creating 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 supporting students and professors in statistical data analysis
Scripting data analyses
Code reviews
Designing statistical studies
Interpreting statistical results
Supporting clients in medical, business, psychology, and social science fields
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 analysis for Babynation/MATIDA
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 intercultural consulting
Networking in Vietnam’s tech hubs and medical hubs
Planning, organizing, and administering a Vietnamese entity
Tools: MS Office, Google Workspace/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 insurance reporting and data migration
Enriching the access layer data for deposit insurance reports
Lead Business Analyst for integrating securities data from WP-Dynamic into Abacus
Creating HGB and IFRS reports for securities from WP-Dynamic
Lead Business Analyst for the restructuring process (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 DWH
Financial and professional analysis of business requirements for implementation
Debugging and conducting business 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 bookings
Automated data analysis and reporting of new account notifications
Project organization, user stories, case analysis, stakeholder analysis
Stakeholder management and business 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
Business 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
Data analysis, validation, and evaluation of 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 city in Eastern Europe
Market research and market analysis
Project documentation
Management consulting on regulations in each target country
Coordination of international travel and meetings with potential partner companies

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Banking and Finance (4.5 years), Professional Services (4 years), Education (1.5 years), Information Technology (1.5 years), Manufacturing (0.5 years), and Retail (0.5 years).

Banking and Finance

Professional Services

Education

Information Technology

Manufacturing

Retail

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (6.5 years), Business Intelligence (6 years), Finance (5.5 years), Quality Assurance (1 year), Sales (1 year), and Project Management (1 year).

Information Technology

Business Intelligence

Finance

Quality Assurance

Sales

Project Management

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 – Specialization: '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 Market License (BHV)

Real Estate Agent (IHK)

Power BI – Microsoft Certification – PL300

Certificate in Intercultural Competence

Profile

Created

August 2025

Last Update

February 2026

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Frequently asked questions

Do you have questions? Here you can find further information.

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, Product Owner Frontend, AI-Automation Consultant.

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, German Bank, Horvath & Partner GmbH, 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 (IT), Manufacturing, and Retail.

Which business areas is William most experienced in?

William is most experienced in business areas like Information Technology (IT), Business Intelligence, and Finance. William also has some experience in Quality Assurance (QA), Sales, and Research and Development (R&D).

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 (IT), 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 Market 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 March 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.