J
John Mantilla
About
Detail
Bogota D.C., Colombia
Contact John regarding:
Flexible work
Starting at
USD40/hour
Résumé
Jobs
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BI and QA EngineerAtScaleJan 2024 - Current (2 years 7 months)As a BI and QA Engineer, I validated and tested advanced query planning and optimization mechanisms to ensure that analytical models deliver accurate, efficient, and business-relevant insights. I collaborated with the Product department on test plans, quality validation, and delivery assurance of new features aligned with SSAS behaviors. Additionally, I contributed to the design and implementation of standard data models in AtScale and Semantic Modeling Language (SML), which improved governance and scalability. I conducted both manual and automated testing for analytical components to maintain the reliability and performance of enterprise-grade BI solutions. My role also involved supporting the integration of major BI tools, including Power- Tools and Analytics SupervisorNubankFeb 2022 - Dec 2023 (1 year 11 months)As a Tools and Analytics Supervisor, I implemented governance frameworks for analytics tools, significantly improving data-driven decision-making across operations. I designed and launched analytics platforms to unify operational metrics and standardize performance tracking, ensuring that all teams had access to consistent data. Additionally, I supported the launch and monitoring of an Auto Reply solution, achieving 50% coverage and a 16% deflection rate, which enhanced customer engagement. I led the implementation of a routing model that reached over 70% accuracy, optimizing customer service allocation. Furthermore, I introduced a unified KPI system to improve the effectiveness and consistency of operations measurement. My experience with
- QA and BI ManagerTeleperformanceNov 2018 - Dec 2021 (3 years 2 months)• Designed and implemented real-time dashboards for key business metrics, improving visibility and decision-making. • Created analytics tools to identify customer behavior patterns and operational trends. • Developed solutions to validate content moderation systems, enhancing automation accuracy. • Utilized PostgreSQL to manage a database where audit scores and feedback were stored, ensuring data integrity and facilitating comprehensive analysis of performance metrics. This integration of database management further supported the development of robust analytics tools, enhancing our overall data-driven decision-making capabilities.
Education
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- FMathematicsFundaci´ on Universitaria Konrad LorenzFeb 2022 - Current (4 years 6 months)