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Ismael Resendiz

Sr. Software Engineer
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Dedicated software engineer with 12+ years of experience in enterprise software development, specializing in distributed systems, integration and enterprise systems. Proficient in Oracle package solutions, Relational and NoSQL databases, with a proven track record of building scalable, high-performance applications. Skilled in managing production systems, developing automation tools, and leveraging technologies like ETL, REST, BATCH for system integrations. Adept at working in fast-paced, ambiguous environments and leading cross-functional teams. Passionate about delivering innovative software solutions that address modern data challenges.

Work Experiences

Staff Systems Engineer

Visa | 2016 - Present
  • Led the design and development of billing, pricing, and revenue management applications to process large-scale transactional data, focusing on scalability and performance.
  • Responsible for data operational activities and managing system reliability, accessibility and scalability.
  • Creating automation tools to foresee transactional data issues.
  • Applied data analytics and machine learning to model downstream data, detecting anomalies and defects in production environments.
  • Upgrading and mantaining system integrations such as AMQ, Rest APIs, Batch processing, etc.
  • Mentored junior developers and interns, providing guidance on distributed systems and the tech stack.
  • Managing production releases and enabling deployment pipelines

Lead Software Developer

Oncor Electric | 2016

  • Transformed CIS mainframe reports into the Oracle billing platform data model.
  • Designed reports that accomplish the requirements, performance efficiency and meet quality controls.
  • Gathered system requirements, analyzing data sources and driving client meetings to demo reports.

Lead Consultant

Infosys | 2015

Led the development of data interfaces for Western Union’s Settlement Transformation project, ensuring high availability and reliability for production data pipelines.

Focused on distributed data processing and ensuring the smooth flow of large-scale financial transactions across systems.

Senior Software Developer

Flock IT | 2010 - 2015
  • Developed enterprise applications for utility companies, implementing Oracle utilities software (CC&B, ORMB) for large-scale billing and financial systems.
  • Analyzed complex legacy system requirements and transform them into Oracle package application language.
  • Designed and developed calculation algorithms and rate modules to optimize billing processes using distributed systems.
  • Collaborated with global teams in the U.S., Mexico, and South America on large-scale software projects.

QA and Systems Developer

Deloitte | 2008 - 2010

Developed business process management (BPM) software for energy regulatory commissions in Mexico. Automated all processes from manual paperwork to digital.

Projects

Data Science

Computer Vision/Deep Learning

Facemask Detection
Adaboost algorithm for face recognition and leverage RESNet deep learning model for face classification. Accuracy greater than 90%. Go to source code
Heart Disease Prediction
This is small Deep Learning model using a feed forward nueral network; trained with the UCI Heart Disease Dataset. Accuracy greater than 92%. Go to source code

Oracle Utilities and Financial Projects

Experienced in full cycle implementation with Oracle Utilities framework. Functional experienced in Payments, Billing, Financial and GL, Field Activities, Meter/Reads, Policy Insurance, Rates, etc.