Marleen Bornat

As a freelance data scientist, I help clients with:

• Identifying and shaping data science use cases
• Writing machine learning pipelines
• Evaluating, implementing and deploying machine learning models
• Supporting business and stakeholder collaboration

Freelance Data Scientist

Titans 

As a freelance Data Scientist @ Titans, I support clients within legal to:

• Get meaningful and actionable insights from their data
• Use NLP to extract critical data from documents 
• Automate manual workflows
• Build custom bots

On-demand Data Scientist

DataWrk

DataWrk is a network of senior freelance data scientists.

DataWrk Member - Senior Data Scientist

Positive Thinking Company

As a Data Science consultant at PTC, I built multiple PoCs and products, spanning areas such as natural language AI assistants, predictive maintenance and data-driven financial planning. I worked across many industries: telecoms, transportation, gaming and banking.

I helped my German and international clients to gain insights and generate value from their data by:

• Understanding the business problem end-to-end and turning it into a data science problem
• Guiding the conceptualisation of data science projects, identifying and shaping use cases
• Designing, developing and delivering digital products in an agile and cross-functional manner

👩‍💻 Selected projects

PREDICTIVE MAINTENANCE (June 2022 - December 2022)
• Consolidated data sources to improve data quality.
• Wrote ML pipelines to prepare model input and streamlined development with MLflow.
• Developed, trained and evaluated ML models.

MEDICAL VOICE BOT (April 2021 - June 2022)
• Developed a multi-turn voice-based conversational AI (Natural Language Understanding, Speech-to-Text (STT), Text-to-Speech (TTS)) with Rasa and Azure.
• Built, evaluated and deployed Transformer-based NLP pipelines
• Trained, fine-tuned, evaluated and deployed STT and TTS models
• Supported project management with resource allocation and requirements engineering
• Mentored and onboarded other data scientists and developers
• Ran regular product demonstrations for senior client stakeholders

🌱 Next to my projects, I co-lead the ESG group and was responsible for:

• Organising strategy sessions and monthly catch-up calls
• Leading international learning sessions
• Writing blog posts and creating content for the company-wide newsletter

https://positivethinking.tech/de/news-de/csr-de/brown-bag-lunches-fuer-mehr-nachhaltigkeit/
https://positivethinking.tech/news/csr-webinar-understanding-climate-changes-and-finding-avenues-for-action

✨ I also initiated international remote work at Positive Thinking Company.

Data Science Consultant

DEMOS Gesellschaft für E-Partizipation mbH - Agile Tools for Open Societies

I contributed to data-based, participatory and AI-supported urban and spatial planning by:

•Scraped 13,000 spatial planning documents and implemented an SQLite storage database.
•Experimented with embedding models and evaluated a semantic search algorithm.

Intern & Working Student for Data Science

Ace & Tate

• Communicated directly with customers via e-mail, on-website chat, social media and via phone

German Customer Experience Associate (PT)

The ONE Campaign

• Conducted technical research on policy issues and created policy content for the website
• Monitored and attended parliamentary sessions on transparency and education
• Contributed to briefings, updated statistics and provided administrative support

October - December 2017 - Freelance media assistant

• Assisted the German media team by producing daily news summaries on ONE's policy issues

Policy and Advocacy Intern

TERRE DES FEMMES

• Coordinated and supervised projects and organised events (e.g. foundation's anniversary with 140 guests) 
• Drafted lobbying letters and articles and assisted with the daily operations
• Substituted the assistant of the executive director for three months and acted as an intern representative

Intern at the Managing Director's Office

Leiden University College The Hague

• Assisted with the launch of the Research Centre
• Co-organised and created promotional material for academic events
• Managed part of the budget and contributed to the writing of the annual report

Student Assistant of the Research Centre

I’m a Data Scientist with over 4 years of experience executing machine learning (ML) & NLP projects, including AI bots and predictive modelling. I’ve worked for leading German and international clients across sectors like telecoms, banking, gaming, transportation and legal.

As a pro-active and product-oriented professional, I thrive in environments that require strategic thinking and collaboration across business units.👩‍💻 

I am currently working as a freelancer. If you think I could be a match for your project, I would be happy to connect!

Next to my daytime client work, I love researching and writing about how to make the world more just and sustainable.🌱 I share my reflections in my monthly newsletter 'Consciously Curious' - https://marleenbornat.substack.com 💌

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