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Hi, I am Denis

Denis Nguyen

Data Enthusiast

I’m a passionate data and analytics leader with over 5 years of experience who’s not shy about coding. I have a growth mindset and believe that success lies in execution, not credentials.

I enjoy challenging myself and blog about my endeavors outside of work. *Opinions expressed are solely my own and do not express the views or opinions of my employer.





Dec 2017 - Present, New York, NY

Healthfirst is New York’s largest not-for-profit health insurer, offering high-quality, affordable plans to fit every life stage, including Medicaid plans, Medicare Advantage plans, long-term care plans, qualified health plans, and individual and small group plans.

Analytics Manager, Enterprise Analytics

Apr 2019 - Present

  • Consult with business leaders to build strategies that align the power of analytics to quantifiable value and assess the work required to meet the needs of multiple business areas, resulting in over $8 million in revenue
  • Construct annual roadmaps and quarterly plans aligned to company priorities to guide analytics deliverables
  • Manage a team (with 4 direct reports) and provide feedback and performance management to team members, including coaching and mentoring for career growth
  • Act as an analytics product owner in agile and PI Planning sessions
  • Investigate the level of effort and evaluate success of analytics projects
  • Partner with IT to build a data warehouse and migrate data and data products
  • Orchestrate creation of analytical controls for system upgrade deployments
Sr. Business Intelligence Analyst/Data Science

Dec 2017 - Apr 2019

  • Technical lead of the Enrollment & Billing department’s controls and metrics program to monitor the health of operational processes, resulting in over $9.5 million in revenue
  • Developed Tableau dashboards to share analyses and promote self-service analytics in the organization
  • Presented results to the VP and directors of the lines of businesses in sprint demos
  • Automated and streamlined business processes to reduce execution time, minimize risks, and increase auditability
  • Mapped business processes to pinpoint system inefficiencies and errors
  • Investigated system data discrepancies, evaluated impact and risks, and created action plans to correct errors

Data Science Mentor
NYC Data Science Academy

March 2017 - Present, New York, NY

NYC Data Science Academy is a proprietary school designed to provide advanced professional training programs and courses in the field of data science.

  • Lead remote tutoring sessions to support students’ understanding of programming, statistics, and machine learning
  • Topics include SQL, data analytics and visualization with R and Python, supervised and unsupervised machine learning with R and Python, data engineering, deep learning, Linux, and Git/GitHub

Data Scientist, Marketing Analytics
Ameritas Life Insurance Corp.

Aug 2016 - Dec 2017, Cincinnati, OH

Ameritas offers insurance, financial services and employee benefits and develops financial strategies and products for more than 4 million customers.

  • Consulted with business partners, including directors and VPs, in cross-functional meetings to discuss and align business marketing goals with data analysis objectives and projects
  • Data steward of marketing data working with the business to establish a business glossary
  • Diagrammed lead generation and customer journey maps and identified cross-sell and upsell opportunities
  • Pioneered supplementing internal data with public data to deliver business insights on various insurance product lines
  • Analyzed customers through profiling, segmentation, and mapping to identify current customers and potential markets
  • Researched to identify the optimal audience for focused marketing with social media

Math and Science Tutor

Jan 2015 - Present, Westchester, NY / Remote

I offer math and science tutoring services to students ranging from middle school to college. If you’re interested in learning more and seeing how we can help your student succeed, feel free to contact me on LinkedIn.

  • Organize and teach SAT/ACT math classes in prep programs
  • Offer private and group math and sciences tutoring sessions for high school and college courses
  • Math topics range from algebra I to Calculus II and science topics include chemistry and physics


M.B.S. in Analytics: Discovery Informatics & Data Sciences
GPA: 3.93 out of 4
Taken Courses
  • Mini-MBA: Data-Driven Management
  • Mini-MBA: Digital Marketing
  • Applied Regression Analysis
  • Introduction to Cloud & Big Data Systems
  • Database Design & Management
  • Business Intelligence for Visual Analytics
  • Python Methodologies
Certificate in Data Science
B.E. in Biomedical Engineering
Extracurricular Activities
  • Resident Assistant, 2010-2013
  • President of Vietnamese Student Association, 2012-2013
  • Student Researcher, 2011-2013
  • Volunteer at Stony Brook Hospital, 2011-2013


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