Jonathan – Python, React, Django

This is a data quality platform designed to help data teams monitor, detect, and resolve data issues across various sources. The product is built for companies that rely on data-driven insights and must ensure data accuracy and reliability. Key features include automated anomaly detection, root cause analysis, and integration with popular data tools.

• Served as a core maintainer of the UI, ensuring code quality and contributing to architectural improvements;
• Migrated endpoints from classic Django models to Django with Pydantic based models;
• Developed custom querying with a Boolean expression parser, enhancing data filtering;
• Enhanced Jira integration, allowing user-specific ticket assignments in the UI;
• Implemented integrations with Dremio and AWS S3, expanding data sources.

This is an online learning platform offering a vast library of courses across various subjects, from programming and business to personal development. Designed for learners worldwide, it connects students with expert instructors, enabling flexible, on-demand education to gain new skills or advance their careers.

• Enhanced assessment platform by integrating support for images, mathematical expressions, and more, enabling new assessment types;
• Led the development of internal tools, reducing assessment maintenance workload by 50% and improving feedback resolution time by 60%;
• Optimized personalized assessment generation by 98% using Redis and Django ORM, vastly improving efficiency;
• Built interactive assessment results charts with React and Highcharts, enriching the user experience;
• Designed and implemented a custom parser, enabling seamless import of assessment questions with multimedia support.

This is a financial institution in Peru focused on providing accessible banking services, including loans, savings accounts, and financial solutions tailored to individuals and businesses. Known for supporting local communities, it emphasizes digital and mobile banking options to enhance financial inclusion and streamline customer access to financial products.

• Developed a mobile app to promote pre-approved loans;
• Achieved $20 million in loan approvals within 8 months;
• Offered special rates for top-tier clients, enhancing access to financial products.

This is a financial institution in Peru focused on providing accessible banking services, including loans, savings accounts, and financial solutions tailored to individuals and businesses. Known for supporting local communities, it emphasizes digital and mobile banking options to enhance financial inclusion and streamline customer access to financial products.

• Developed a mobile app with the Android SDK and C# to conduct georeferenced client verification, enabling field officers to capture photos and verify client locations, which reduced financial risk and improved loan recovery management;
• Enabled loan approvals through the app, with 15% of all loans processed solely via the mobile platform, demonstrating the app’s reliability and impact on loan operations;
• Built a georeferenced web dashboard using Angular to visually track client visits and validate collected evidence, enhancing oversight and accountability in loan approvals;
• Implemented a REST API with Python and Flask for SMS messaging through legacy VoIP equipment, lowering messaging costs and achieving a monthly volume of over 200k messages;
• Designed a web application using Angular, Django, and MySQL to survey clients, providing valuable insights into financial product needs and improving customer satisfaction;
• Created a client request management system for handling requests such as early debt repayment and credit limit adjustments, increasing response efficiency;
• Analyzed client distribution using Python and PostgreSQL/PostGIS to identify low-risk zones, supporting better strategic decision-making in loan decentralization;
• Automated report generation with scheduled events and email notifications using Python, streamlining the production of weekly and monthly reports.