Deborah Jara

Data Analyst with a Business Intelligence focus, combining Python, SQL, ETL, and statistical testing (hypothesis testing, A/B testing) with Power BI to turn ambiguous business questions into structured, data-backed frameworks. Designed and led the Level Mapping Framework, a standardized English-proficiency assessment methodology adopted across 4 countries, cutting level-mismatch group reassignments from ~5/month to 1–2 every two months, and built the Power BI and self-service Excel reporting that gave leadership real-time visibility into program health. Now bringing that same analytical mindset to Data Analyst and Business Intelligence roles.

Independent Data Analyst at Self-Directed Projects (2025-12 – Present)

• Built a profitability model in Python and SQL on $9.62M in revenue, running a two-proportion z-test that showed a proposed checkout redesign wouldn't lift conversion (p=0.416) — avoiding an unnecessary product investment
• Built a financial performance model in SQL across 6 countries, tracing $8.6M in underperforming marketing spend against a 75.75% ROI benchmark achieved elsewhere
• Combined traffic and economic datasets across 15 LATAM cities in Python to analyze the relationship between urban congestion and economic productivity, informing infrastructure investment priorities

Corporate Training & Data Analytics | English Teacher Semi Sr. at Valtech (2022-06 – 2025-12)

• Designed and led end-to-end development of the Level Mapping Framework, a standardized English-proficiency assessment methodology replacing instructor-dependent evaluations, cutting level-mismatch group reassignments from ~5/month to 1–2 every two months, translating requirements from HRBPs, regional leaders, and instructors into reporting specifications
• Applied the Level Mapping Framework to assess English proficiency across employees migrating from Kin+Carta following its 2024 merger with Valtech, producing country-level breakdowns of evaluation results
• Automated the interview evaluation and level-assignment workflow using Vercel, reducing per-interview documentation time ~33% (30→20 min) while standardizing data capture across 4 countries (MX, CO, AR, BR)
• Built Power BI dashboards tracking enrollment, dropout and proficiency KPIs for 600+ students across 4 countries, with multiple filters including country and service line, giving leadership real-time program visibility
• Designed a self-service Excel reporting dashboard that cut recurring stakeholder data requests from ~10 every 5 days to ~2 every 2 weeks, reducing typical turnaround from half a day to near-instant
• Sustained a 96% average class satisfaction score (vs. an 80% target) across 7–9 weekly groups throughout my tenure at Valtech

English Language Teacher at Secretaría de Educación Pública (2018-02 – 2022-05)

• Delivered English instruction to 300+ elementary students (2018–2022), planning lessons and adapting instructional strategies to individual learning needs
• From 2020, began incorporating attendance and performance data into lesson planning, adapting instruction to address identified learning gaps, early groundwork for my shift into data-driven decision-making

Certificate in Google Data Analytics Certificate – Coursera (2026-09)

Bootcamp in Data Analytics Bootcamp – TripleTen (2026 – 2026)

M.A. in English Language Teaching – Universidad IEXPRO (2022)

B.A. in Graphic Design – Universidad Tecnológica de México (2014)