Ethan CruzDATA ENGINEER & PYTHON DEVELOPERDownload résumé

WATERTOWN, MA · REMOTE / HYBRID

Ethan Cruz

Data Engineer &
Python Developer

I build reliable data pipelines and APIs, connect enterprise systems, and solve production problems at their source.

With 3+ years of experience, I bring hands-on engineering and clear communication to the space between business needs and technical solutions.

Get in touch View GitHub
75

Sites served by an enterprise
supply chain analytics module

95%

Reduction in query latency
during production investigation

7

Enterprise application modules
covered by automated QA checks

01 / EXPERIENCE

Professional experience

Building and supporting the systems people rely on.

Dover Corp

Data Engineer

Jun 2025–Present

  • Built and maintained a supply chain analytics module for an enterprise application serving 75 sites.
  • Supported development and revision of shortage analysis algorithms and integrated multiple ERP systems into the analytics platform.
  • Automated QA checks across 7 modules, along with recurring data patching and transformation workflows to reduce manual support effort.
  • Triaged inbound data issues, reproduced failures, and delivered root-cause fixes with clear documentation.

Dover Corp

Software Engineer /
Business Systems Analyst

Jun 2024–Jun 2025

  • Served as the technical bridge between business users and engineering, diagnosing data and application issues.
  • Developed Python APIs with FastAPI and Flask to ingest, clean, and expose portfolio and reporting data.
  • Investigated production issues across APIs, databases, and pipelines; reduced query latency by 95%.
  • Built internal tools and scripts to reduce recurring support requests and improve response times.

Sentry Insurance

Data Analyst Intern

Sep 2023–Dec 2023

  • Analyzed 400k+ records with Python and SQL to identify anomalies and validate data quality.
  • Communicated findings and limitations to non-technical stakeholders.

Dover Corp

DevOps Intern

Jun 2023–Aug 2023

Developed a proof of concept for migrating a monolithic cloud application to a microservices architecture on AWS.

Wildcard Corp

Data Operations Intern

Dec 2021–May 2023

  • Supported ingestion and processing of 10M+ daily records from distributed sources.
  • Troubleshot pipeline failures and data integrity issues alongside engineering teams.

02 / EXPERTISE

Technical toolkit

From incoming data to dependable production systems.

Languages & data

Python, Pandas, SQL, CSV / JSON, data validation, ETL

Applications & engineering

FastAPI, Flask, REST APIs, Git, Linux, MCP

Infrastructure & cloud

Docker, Kubernetes, AWS, Azure, Terraform

Databases

PostgreSQL, SQL Server, Oracle, MongoDB

Troubleshooting & support

Root-cause analysis, incident response, client communication

Workflow & delivery

Jira, Confluence, Agile, documentation

03 / SELECTED WORK

Projects & open source

Practical work beyond the day-to-day.

INFRASTRUCTURE · AUTOMATION

Self-hosted home lab

Designed and operated a Kubernetes cluster for personal services with production-like workloads.

  • Provisioned Cloudflare, DNS, and tunnels with Terraform.
  • Deployed CI/CD pipelines with Woodpecker CI.
  • Managed S3-compatible object storage using MinIO.
  • Implemented ingress, TLS, and service exposure.

04 / EDUCATION & COMMUNITY

Learning & mentorship

University of Wisconsin–Stevens Point

B.S. Data Analytics & App Development

Minor in Mathematics

DeepLearning.AI

Specialization certificates

Data Engineering Specialization
Deep Learning Specialization

FIRST Robotics

Programming Mentor

Mar 2023–2025

Guided high school students in designing and implementing robot control systems using Java, working with team leaders and fellow mentors to help students succeed.

CONTACT

Let’s build something dependable.

Interested in a hybrid, client-facing role with room to grow in software engineering.

LinkedIn ↗GitHub ↗(920) 268-9088Download résumé (.odt) ↓