Jennifer Haliewicz

Portland, Oregon · jennifer.haliewicz@gmail.com

Professional Summary

Data Scientist with 3+ years of experience in machine learning, NLP, and AI-driven solutions. Expertise in optimizing conversational AI systems and improving model performance, with a focus on enhancing accuracy and streamlining data workflows.

Pursuing an M.S. in Human Language Technology, combining technical skills with practical applications for scalable impact.

Education

M.S. in Human Language Technology
University of Arizona | Expected Spring 2026
Relevant Coursework: Machine Learning, Advanced Statistical NLP, Data Mining, Deep Learning, Speech Processing, Information Retrieval

B.A. in Applied Linguistics
Portland State University, 2022

B.A. in French Language and Literature
Portland State University, 2012

Technical Skills

Programming & Data Science: Python (pandas, NumPy, scikit-learn, TensorFlow, PyTorch), SQL, R, Azure ML

Machine Learning & NLP: Supervised/Unsupervised Learning, Deep Learning, Speech Processing, NLP, Model Deployment

Big Data & Databases: PostgreSQL, BigQuery, NoSQL

Cloud & Platforms: AWS, Azure, Git, Jupyter, Power BI

Tools: Tableau, Looker, Sigma, MLFlow, Visual Studio Code

Work Experience

Meta (contract with Tundra Technical Solutions) | Data Labeling Analyst II

Feb 2026 - present

  • Evaluated AI chatbot responses across utility, linguistic naturalness, coherence, and safety dimensions to contribute to ongoing improvements.
  • Performed in-depth quality audits and workflow optimizations, delivering targeted feedback that streamlined processes and refined annotation guidelines.
  • Spearheaded linguistics projects using HLT expertise, created targeted error sets, enhanced rating protocols, and developed naturalness guidelines grounded in linguistic theory.
  • Partnered with product and engineering teams to iterate on evaluation metrics and guidelines, driving scalable gains in chatbot alignment and performance.
  • Uncovered insights from complex edge cases, fueling large-scale AI initiatives with measurable product impact.

NAVEX Global | Customer Service Technician

Nov 2024 – February 2026

XRI Global | Human Language Technology Intern

Oct 2024 – May 2025

Technologies: PostgreSQL, Tableau, Replit, Python, GitHub

  • Contributed to the Bridging the Digital Divide project, expanding language technology for low-resource languages.
  • Designed and implemented PostgreSQL database schemas to support NLP research and dataset management.
  • Structured and annotated linguistic datasets to improve accessibility for underrepresented languages.
  • Developed UI prototypes in Replit, enhancing usability and front-end development.

Verint | Data Analyst

Nov 2022 – Feb 2024

Technologies: Power BI, SQL, JavaScript, Jira, Asana, Confluence, Excel

  • Enhanced chatbot performance through NLP techniques, reducing customer escalations and improving resolution times by over 25%.
  • Led analytics for major clients, improving key performance metrics like interaction time and customer satisfaction.
  • Developed and implemented data governance strategies, improving data accuracy and information retrieval.

Grin, Inc | Associate Data Analyst

Jun 2022 – Oct 2022

Technologies: SQL, BigQuery, Sigma Computing, Salesforce, Google Analytics

  • Analyzed customer and marketing data to optimize ad spend and improve engagement.
  • Designed SQL-based reporting dashboards, saving 10+ hours of manual reporting weekly.
  • Built scalable data pipelines to improve workflow efficiency.

Service and Leadership

Project LEDO | Social Media Volunteer

Feb 2024 – May 2024

Assisted in social media planning, content scheduling, and online engagement.

PDX Dream Team | Co-Manager, Co-Owner, Co-Founder

Sept 2022 – Dec 2025

Founded and manage a development cycling team, focusing on inclusive athlete development, sponsorship management, and season planning.

Portland Bike Polo | Board Member

2019 – 2020 (Board Member) | 2023–2024 (Treasurer)

Provided leadership, fundraising, and event planning for a local sports organization.