Sebastian Oropeza Ramírez

Data Analyst with hands-on training from TripleTen and applied experience in marketing analytics, machine learning, and A/B testing. Built a churn prediction model with 90% accuracy across 4,000 clients, identified a $141,321 inefficiency in a marketing channel, and audited an A/B test across 3,481 users, detecting four execution flaws that invalidated its conclusions. Detail-oriented and an effective communicator, with experience translating complex datasets into clear insights for non-technical stakeholders.

English C1 (EFSET).

Client Analyst at ER Inmuebles (2018-01 – Present)

• Qualified up to 70 prospect profiles monthly through conversation analysis and documentation review, achieving a 43% prospect-to-appointment conversion rate (30 out of 70)
• Verified the accuracy and validity of 8 to 10 client files per month advancing to the closing stage, reducing the risk of transactions with inconsistent information
• Assessed client's financial capacity by analyzing verifiable income and pre-qualified them for mortgage credit, managing their enrollment in the program

Bilingual Operations Analyst at Teleperformance (2022-01 – 2023-12)

• Managed reservations, cancellations, and operational incidents for Avis & Budget in English, handling multiple simultaneous cases in a high-volume environment
• Recorded and categorized client information and vehicle status for efficient case resolution, escalating complex incidents per established protocol
• Maintained professional communication in English with international clients in a 100% remote environment

English Instructor at PEB (2019-01 – 2022-12)

• Designed individualized student progress tracking to adjust teaching strategies according to level and learning pace
• Communicated complex concepts clearly and in a structured way to groups of varying levels and ages

Certificate in Data Analysis – TripleTen (2026-12)

Law Degree in Law – Facultad de Jurisprudencia (2018-01 – 2021-12)