Joana Machado Miguéns

Volunteer Data Validator

Power San Diego Political Action Campaign•  March 2024 - May 2024•  San Diego, CA

Led data management for 40-person team processing 24,000 signatures, personally validating 25%. Enabled data quality monitoring with Tableau dashboards, improving error detection by 20%.

Data Consultant

Argusa•  February 2020 - December 2023•  Lausanne, Switzerland

Engineered data architecture for Product Lifecycle Management of luxury watchmaker, leveraging Jira and agile methodology to write complex queries in MS SQL Server and model data for 30+ self-service BI datasets. Designed 50+ Tableau dashboards accessed 100+ times daily for C-suite of luxury watchmaker, visualizing multimillion-dollar projects. Streamlined Project Portfolio Management, replacing 20-page static monthly report with real-time impactful visualizations, reducing 3-4 weeks of monthly prep to hours. Developed complex SQL queries and Tableau dashboards to track KPIs and Segregation of Duties violations across 10,000+ user authorizations, enabling compliance oversight for luxury watchmaker. Automated annual review of SAP roles with repeatable ETL processes, slashing months of manual work to hours. Championed data literacy by organizing quarterly meetups for data professionals, authoring technical blog posts, orchestrating a 50-participant analytics competition, and developing a data visualization course.

Post-doctoral researcher for the ATLAS Experiment at the CERN lab

University of Pennsylvania•  December 2014 - November 2019•  Philadelphia, PA and Geneva, Switzerland

Led 100+ international analysts across 10 research projects, mentoring team members, leveraging Jira for project management, and reporting to stakeholders. Yielded 10 peer-reviewed publications, 3 co-authored. Designed Grafana dashboards for data quality monitoring of 30k-computer farm processing 1000 events/ second. Coordinated cross-functional teams in fast-paced environment, boosting data acquisition efficiency to 95+%. Recognized by 5000-person international collaboration with ATLAS Outstanding Achievement Award.

Research assistant for the ATLAS Experiment at the CERN lab

Laboratory of Instrumentation and Experimental Particle Physics•  October 2008 - September 2014•  Lisbon, Portugal and Geneva, Switzerland

Analyzed petabyte-scale datasets with Python and C++ in world-wide distributed computing grid within international team of 100+ physicists, pioneering data-driven techniques used in Higgs boson discovery (2013 Nobel Prize in Physics). Recognized by 5000-person international collaboration with ATLAS Thesis Award.