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Zachary O'Donnell

Business Analyst & Data Engineer

Analyst and builder who turns messy operational data into automated systems, dashboards, and measurable business outcomes. Experienced across Amazon advertising, pricing, ETL pipelines, and full-stack internal tools.

PythonTypeScriptNext.jsSQLPostgreSQLdbtSupabaseAmazon AdsETL / API integrationsData analysis
Portrait of Zachary O'Donnell

01 — Experience

Where I've built impact

Analytics, automation, and full-stack tools across e-commerce and enterprise ops.

01

Business Analyst II

Rug Pad USA

Oct. 2022 – Jan. 2026

Suffield, CT

  • Managed $5M+ annual Amazon Ads spend supporting $50M+ in revenue, increasing efficiency and driving incremental net sales growth through custom performance metrics, profitability-based bidding, and automated optimization systems.
  • Led pricing and profitability initiatives that increased net sales while reducing unit volume, improving margins and driving more efficient operations.
  • Developed automated bidding and campaign management tools in Python, reducing manual optimization time by 60–80%.
  • Designed and implemented a COGS calculation engine supporting ~3,000 standard SKUs and 800,000+ dynamically generated custom SKUs, enabling SKU-level profitability tracking.
  • Built a centralized data infrastructure (PostgreSQL, Supabase, dbt), reducing reporting time from hours to minutes.
  • Developed interactive dashboards and internal tools (Next.js, TypeScript, Python) to monitor revenue, profitability, and advertising performance.
  • Engineered ETL pipelines and API integrations (Amazon Ads, ChannelAdvisor, Shopify), automating data ingestion and eliminating manual reporting workflows.
  • Improved database performance through schema design and indexing, reducing query times by 30–70%.

02

Business Analyst

Connecticut APA

Nov. 2020 – Oct. 2022

Chicopee, MA

  • Handled HR and bookkeeping tasks including hiring, payroll, and 1099 generation.
  • Developed software to fill efficiency gaps in business operations.
  • Piloted automatic payments for players to reduce staff workload.
  • Enhanced operational performance and reduced labor expenses by developing and optimizing standard practices.

03

Business Analyst

CheckWriters

Nov. 2019 – Sep. 2020

Northampton, MA

  • Collaborated with stakeholder groups across the organization to ensure business and technology alignment.
  • Used brainstorming sessions and wireframes to build requirements for improved accruals and payroll input.
  • Translated stakeholder requirements into user cases, user stories, and workflow diagrams.
  • Worked with leadership to problem-solve and identify workflow improvements.
  • Created and updated detailed documentation of current and future software implementations.

04

Operational Support Specialist

MassMutual

Oct. 2017 – Nov. 2019

Springfield, MA

  • Developed reports pairing associates' monthly work completed with error rates using Alteryx.
  • Presented consolidated error analysis to management and developed measurable action plans.
  • Built a web application to automatically generate tickets for the Employee Engagement Committee recognition program.
  • Developed an automatically generated rotating work schedule built on an optimized skills-based algorithm.
  • Member of the SharePoint/Metrics committee tasked with standardizing and improving productivity tracking.
  • Processed over 6,000 requests per month at a 99%+ accuracy rate.

02 — Skills

Stack & strengths

Technical

  • Python
  • TypeScript
  • Next.js
  • SQL
  • PostgreSQL
  • dbt
  • Supabase
  • Alteryx
  • PHP
  • HTML/CSS
  • JavaScript

Business & analytics

  • Data collection & analysis
  • Amazon Ads
  • ETL / API integrations
  • Agile
  • Jira
  • User stories
  • Wireframes
  • Stakeholder relations
  • Business process mapping

Tools

  • Microsoft Office
  • Adobe Suite
  • WordPress
  • ChannelAdvisor
  • Shopify

Recognition

  • *MassMutual Leadership Award
  • *MassMutual Be Bold Award
  • *MM Leadership Explorers Club
  • *MM Young Professionals / Passages BRGs
  • *MM Truth to Power

interests: Running an eSports league / Piano / guitar / Cooking

03 — Education

Academic foundation

University of Massachusetts

Bachelor of Science: Resource Economics

Amherst, MA · May 2017