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John Lenz Email & Phone Number

Digital Category Analyst at MilliporeSigma
Location: Chelmsford, Massachusetts, United States 10 work roles 4 schools
1 work email found @finefettle.com 2 phones found area 727 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email j****@finefettle.com
Direct phone (727) ***-****
LinkedIn Profile matched
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Current company
MilliporeSigma
Role
Digital Category Analyst
Location
Chelmsford, Massachusetts, United States
Company size
10417 employees

Who is John Lenz? Overview

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Quick answer

John Lenz is listed as Digital Category Analyst at MilliporeSigma, a company with 10417 employees, based in Chelmsford, Massachusetts, United States. AeroLeads shows a work email signal at finefettle.com, phone signal with area code 727, and a matched LinkedIn profile for John Lenz.

John Lenz previously worked as Product Data Scientist at Milliporesigma and Retail Business Intelligence Analyst (Position Eliminated) at Fine Fettle. John Lenz holds Postgraduate Degree, Artificial Intelligence And Machine Learning from Texas Mccombs School Of Business.

Company email context

Email format at MilliporeSigma

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{first_initial}{last}@finefettle.com
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AeroLeads found 1 current-domain work email signal for John Lenz. Compare company email patterns before reaching out.

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Profile bio

About John Lenz

It may surprise many of you reading this but my initial entry into data and technology was marked with failure not success. As a finance student, I struggled so much with my first programming exposure that I had to drop the class. Despite many others encouraging me to solely focus on finance, something told me that technical and programming skills would be important for my future. The next semester, I returned to the same Python course with renewed determination, investing 10x as much effort to grasp the fundamentals and successfully pass. I didn't know it at the time, but that decision paved the way for the rest of my journey and proved to be transformative.While working in finance, I continued to build up my technical skills further and take on increasing challenging technical projects- starting with basic automation script and eventually working my way up to increasingly complex data analysis and pipeline development. Each success bolstered my resolve to keep learning and exploring the fascinating world of data science and Machine Learning.In 2022, I make a decisive decision to leave my finance roots behind and jump head first into a technical roles, its a decisive that again proved transformative. Within 18 months, and a few setbacks along the way, I progressed from writing SQL queries to implementing AI and ML models from scratch processing millions of records. Meanwhile, my Python skills which were still developing when I made the initial transition have improved drastically, and I have become both proficient and efficient in implementation. Today, I work at the intersection of data science and ML, building AI-enable solutions that drive substantial business impact and value for one of the largest companies in the world.This year I made yet another big leap and I enrolled in the University of Texas Austin post-graduate program in Artificial Intelligence and Machine Learning and will be completing the program in February 2025. My experience has shown and proven to me that no matter the starting point, its possible to self-learn technical skills and complex ML concepts as long as you have the persistence to keep pushing forward when its hardest. I'm passionate about pushing the boundaries of Artificial Intelligence and Machine Learning while maintaining a focus on high impact and interpretability.

Listed skills include Bloomberg Terminal, Equity Research Analysis, Microsoft Office, Time Management, and 10 others.

Current workplace

John Lenz's current company

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MilliporeSigma
Milliporesigma
Digital Category Analyst
Chelmsford, MA, US
Website
sigmaaldrich.com
Employees
10417
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Company profile
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10 roles

John Lenz work experience

A career timeline built from the work history available for this profile.

Product Data Scientist

Current
Milliporesigma

Burlington, MA, US

  • Data Processing and Analytics:
  • Worked with large scale datasets with ~1m+ rows minimum regularly
  • Devised controlled experiments to answer ambiguous and vague business questions regarding product/category analytics, and website traffic behaviors. Ensured results are unbiased, accurate, and actionable.
  • Leveraged a vast array of different statistical analysis techniques including sampling, hypothesis testing, A/B testing, and regression analysis to solve business challenges.
  • Built scalable data processing pipelines handling 1M+ daily records using cloud infrastructure (GCP Vertex AI)Machine Learning Implementations/Product Recommendation Engines:
  • Developed and implemented data-driven algorithms to increase co-purchase product recommendations in the complicated medical diagnostics segment. Implemented ML models using Google Cloud Vertex AI.
Mar 2024 - Present

Retail Business Intelligence Analyst (Position Eliminated)

Fine Fettle

Newington, Connecticut, US

  • Developed ETL pipelines in Python bringing together data from multiple source systems using database connection libraries, Pandas, and NumPy for efficient large-scale data processing
  • Built automated reporting system leveraging MySQL, Python, and Tableau. Processed daily transactions across multiple business units and divisions.
Apr 2023 - Sep 2023

Business Data Analyst

Golden Hearts Games

Boston, MA, US

-Saved company ~$30k/month by presenting data showing new customer retention strategy was not effective and was leading to lower-quality payer cohort without an improvement in conversion rates-Led data validation efforts in business model pivot, pinpointing and resolving multiple data quality issues between production, testing, and legacy systems-Mastered.

Aug 2022 - Feb 2023

Financial Analyst (Fp&A)

Columbia Care

New York, US

-Produced monthly P&Ls and other relevant KPIs for market directors. Supported development of improved reporting infrastructure that reduced reporting time in half and resulted in more actionable information for leadership-Participated in monthly meetings between Operations, FP&A, and Senior management to better understand key drivers of current results.

Nov 2020 - Aug 2022

Performance Analyst/Investment Associate

Nepc, Llc

Boston, Massachusetts, US

  • Built automated python ETL pipeline for investment holdings data integration with TIBCO Spotfire
  • Utilized Python to develop custom transformation logic and data cleaning strategies to handle missing values, poor formatting, and other common issues found in legacy systems.
  • Saved one hour per client per month of data processing/labor time scaling across 50+ clients.
Sep 2019 - Jul 2020

Investment Professional

Self-Employed

-Actively wrote and developed research reports on individual companies, and managed my own portfolio for many years (2015-2020)-Investment Research Consultant (2016 and 2017)- Raymond James-Finalist in Boston CFA Society Institute Research Challenge (2018)-Passed CFA Level I Exam(~40% pass rate amongst industry professionals)- June 2018

Jan 2015 - May 2020

Credit Analyst Intern

Santander Bank, N.A.

Boston, MA, US

-Analyzed financial statements, credit metrics, and operating profits to develop internal ratings which determined the size of credit extended-Assisted in the annual renewal process of 3 different corporate loans worth an estimated $100M dollars-Constructed cash flow projections of prospective borrowers, including stress testing of loan performance and.

Jun 2018 - Aug 2018

Investment Research Consultant

Raymond James Financial, Inc.

St. Petersburg, Florida, US

  • Participated in weekly investment projects which were presented to the Senior Vice President of Investments
  • Gained a deeper understanding of the relationships between the three financial statements (Income statement, Balance Sheet, and Statement of Cash Flows); this knowledge was important to giving context to financial.
Jul 2016 - May 2017

Investment Research Intern

Raymond James Financial, Inc.

St. Petersburg, Florida, US

  • Actively participated in weekly investment projects, and received increasing responsibilities and positive weekly feedback
  • Researched and assessed the relative strengths/weaknesses of various equity investment styles and strategies across market cycles
  • Analyzed multiple firms within the healthcare, technology, and financial sectors and delivered short 1-2 page investment summaries for each investment
Feb 2016 - May 2016
Team & coworkers

Colleagues at MilliporeSigma

Other employees you can reach at sigmaaldrich.com. View company contacts for 10417 employees →

CR Cheryl Robarge Cheryl Robarge Colleague at MilliporesigmaNorth Chelmsford, Massachusetts, United States, United States View → AN Amanda N. Peterson Amanda N. Peterson Colleague at MilliporesigmaKansas City Metropolitan Area, United States View → RA Rana Abbouchi Rana Abbouchi Colleague at MilliporesigmaGermantown, Maryland, United States, United States View → WC Wayne Cagno Wayne Cagno Colleague at MilliporesigmaNew York City Metropolitan Area, United States View → AP Aditya Pattnaik Aditya Pattnaik Colleague at MilliporesigmaPune, Maharashtra, India, India View → DL Diane Lidgett Diane Lidgett Colleague at MilliporesigmaBellefonte, Pennsylvania, United States, United States View → JB Jacob Blanchard Jacob Blanchard Colleague at MilliporesigmaLaurel, Maryland, United States, United States View → AD Amanda Dube Amanda Dube Colleague at MilliporesigmaNashua, New Hampshire, United States, United States View → SM Sarah Mcginnis Sarah Mcginnis Colleague at MilliporesigmaFredonia, Wisconsin, United States, United States View → RM Rishav Maini Rishav Maini Colleague at MilliporesigmaEverett, Massachusetts, United States, United States View →
4 education records

John Lenz education

Postgraduate Degree, Artificial Intelligence And Machine Learning

Texas Mccombs School Of Business

Computer Science Programming Certificate, Computer Software Engineering

Southern New Hampshire University

Bachelor’S Degree, Finance

Bentley University

Bachelor Of Science In Business Administration(Bsba), Finance Major, Economics Minor

Western New England University
FAQ

Frequently asked questions about John Lenz

Quick answers generated from the profile data available on this page.

What company does John Lenz work for?

John Lenz works for MilliporeSigma.

What is John Lenz's role at MilliporeSigma?

John Lenz is listed as Digital Category Analyst at MilliporeSigma.

What is John Lenz's email address?

AeroLeads has found 1 work email signal at @finefettle.com for John Lenz at MilliporeSigma.

What is John Lenz's phone number?

AeroLeads has found 2 phone signal(s) with area code 727 for John Lenz at MilliporeSigma.

Where is John Lenz based?

John Lenz is based in Chelmsford, Massachusetts, United States while working with MilliporeSigma.

What companies has John Lenz worked for?

John Lenz has worked for Milliporesigma, Fine Fettle, Golden Hearts Games, Columbia Care, and Nepc, Llc.

Who are John Lenz's colleagues at MilliporeSigma?

John Lenz's colleagues at MilliporeSigma include Cheryl Robarge, Amanda N. Peterson, Rana Abbouchi, Wayne Cagno, and Aditya Pattnaik.

How can I contact John Lenz?

You can use AeroLeads to view verified contact signals for John Lenz at MilliporeSigma, including work email, phone, and LinkedIn data when available.

What schools did John Lenz attend?

John Lenz holds Postgraduate Degree, Artificial Intelligence And Machine Learning from Texas Mccombs School Of Business.

What skills is John Lenz known for?

John Lenz is listed with skills including Bloomberg Terminal, Equity Research Analysis, Microsoft Office, Time Management, Critical Thinking, Teamwork, Research, and Microsoft Excel.

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