My Resume
Katherine Toro Villanueva • Computer Science, UNF
Katherine Toro Villanueva

Katherine Toro Villanueva

Digital Portfolio

Computer Science • UNF • Spring 2026

Graduating May 2026 from the University of North Florida. I build enterprise systems in Java, C, and COBOL while serving as UNF Student Body Treasurer, managing a $6.1M budget, allocating next year's budget, and serving as strategic planner.

01

About Me

I'm a Computer Science student at the University of North Florida graduating Spring 2026, with a minor in Leadership. This fall, I'll be pursuing my Master's in Analytics at Georgia Tech - Online, Computational Tools pathway.

I work in enterprise environments and backend development, currently serving as UNF Student Body Treasurer and strategic planner, managing a $6.1M budget. I'm bilingual in English and Spanish.

University of North Florida
B.S. Computer Science • Minor in Leadership
Jacksonville, FL • Expected May 2026
GPA: Dean's List (Summer 2024 – Fall 2025)
Hicks Honors College UPE Honors Society Dean's List
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Projects

Feb 2025
IPS Gate Demo

Developed and delivered a full feature demo for the IPS Gate system at KLS Martin Group, highlighting enhanced UX improvements and streamlined workflows designed to boost operational efficiency for medical device teams.

Java KLS Martin Group UX
Aug – Sep 2025
WHOAMI Program Using 3270

Modified and ran an introductory COBOL program on an IBM mainframe through a 3270 terminal session. Updated the WHOAMI program to replace the default output with labeled personal information, then compiled it with JCL and executed it through TSO and SDSF, building hands-on experience with ISPF editing, interactive mainframe workflows, and batch output review.

COBOL 3270 JCL TSO/ISPF
Sep 2025
3270, ISPF, COBOL and JCL

Duplicated existing WHOAMI COBOL and JCL members into a new PROJ2 workflow on an IBM mainframe, then modified the COBOL program and JCL to produce labeled personal output, update job parameters, compile in batch, and run both batch and interactive executions through TSO. Strengthened hands-on experience with 3270 navigation, ISPF member management, COBOL data and procedure divisions, and JCL job configuration.

COBOL 3270 ISPF JCL
Sep – Oct 2025
Annuity Valuation Program

Built an enterprise-grade program in COBOL that evaluates annuity value from user-supplied parameters. Demonstrates proficiency in legacy financial systems and mainframe programming with JCL job control.

Enterprise COBOL JCL Mainframe
Oct – Dec 2025
Amortization Calculator

Developed a program to amortize from an input record and have the output controlled by JCL, demonstrating practical mainframe programming with Enterprise COBOL and job control language.

Enterprise COBOL JCL Mainframe
Sep – Oct 2025
JCLLAB2

Created JCL to merge two public partitioned datasets into a new dynamically named PDS on an IBM mainframe. Used JCL utilities to build a fresh destination dataset on each run based on the current date and time, then verified the JES output, resulting PDS, and merged members through mainframe tools and screenshots.

JCL PDS Mainframe IBM Z
Aug – Dec 2024
SIC Assembler Pass 1

Implemented pass 1 of a SIC assembler in C to analyze SIC assembly source code and generate a symbol table. Designed the program to process an input assembly file, calculate symbol addresses, detect pass-one errors such as invalid source conditions, and stop with clear assembly error reporting when needed, building the foundation for object code generation in a later second pass.

C Assembler Systems Programming SIC
Oct – Nov 2025
SIC Assembler Pass 2

Built pass 2 of a SIC assembler in C to read the intermediate file and symbol table from pass 1, resolve addresses, generate object code, and write a valid object program. Added pass-two error checking and prevented object file output when assembly errors were found.

C Assembler Systems Programming SIC
03

Experience

z/OSpreys, University of North Florida
Public Relations Chair
Jacksonville, FL • February 2026 – Present
  • Manages the club's social media presence and external communications.
  • Increased club member engagement through targeted outreach and content strategy.
UNF Student Government
Student Body Treasurer
Jacksonville, FL • October 2025 – Present
  • Advise the Student Body President, Senate, and budget officers on financial policy, funding priorities, and compliance — ensuring transparent stewardship of student fees.
  • Serve as strategic planner for the Student Body Treasurer role, contributing to long-term financial planning and policy direction for the student government.
  • Serve as student representative on university fee policy committees.
UNF Student Government
Budget & Allocations Chair
Jacksonville, FL • April 2025 – October 2025
  • Reviewed and approved 150+ funding requests for student clubs and organizations, ensuring compliance with SG finance code and university policy.
  • Chaired the Budget and Allocations Committee and assisted the Treasurer in preparing the annual budget.
KLS Martin Group
IPS Data Coordination Assistant / Intern
Jacksonville, FL • May 2024 – August 2025
  • Collaborated cross-functionally with production, sales, marketing, and product management to manage patient-specific case files for medical devices.
  • Ensured adherence to regulatory and internal guidelines across all case documentation workflows, including HIPAA compliance.
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Skills

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Programming
Java C / C++ Python SQL Enterprise COBOL JCL Assembler R
Tools & Platforms
Git GitHub VS Code IntelliJ IDEA Zowe Gradle Make ISPF TSO IBM Z
Languages
English — Fluent Spanish — Native/Bilingual
Leadership
Budget Management Financial Analysis Strategic Planning Team Collaboration
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Certifications

IBM Z Xplore - All Star badge
IBM Z Xplore - All Star
IBM Systems • Advanced • Dec 2025
Highest achievement level in IBM's Z mainframe learning platform, demonstrating mastery across all Z Xplore badge levels.
IBM Z Xplore - Advanced badge
IBM Z Xplore - Advanced
IBM Systems • Advanced • Oct 2025
Advanced-level certification covering z/OS, JCL, and enterprise system operations on IBM Z.
IBM Z Xplore - Concepts badge
IBM Z Xplore - Concepts
IBM Systems • Intermediate • Sep 2025
Core concepts of IBM Z infrastructure, mainframe architecture, and enterprise workloads.
COBOL Programming with VSCode badge
COBOL Programming with VSCode
IBM Systems • Foundational • Nov 2025
Writing, debugging, and modernizing COBOL applications using Visual Studio Code with IBM Z Open Editor.
Introduction to IBM z/OS badge
Introduction to IBM z/OS
IBM Systems • Foundational • Dec 2025
Foundational knowledge of the z/OS operating system, its components, and how it supports enterprise workloads on IBM Z.
Introducing z/OS UNIX System Services badge
Introducing z/OS UNIX System Services
IBM Systems • Intermediate • Dec 2025
UNIX System Services environment within z/OS, including shell commands, file systems, and application integration.
Introduction to System Programming on IBM Z badge
Introduction to System Programming on IBM Z
IBM Systems • Intermediate • Dec 2025
System programming fundamentals on IBM Z, covering assembler, linkage, and low-level mainframe system interactions.
Explore Emerging Tech badge
Explore Emerging Tech
IBM SkillsBuild • Dec 2025
Exploration of emerging technologies including AI, cloud computing, and their applications in modern enterprise environments.
IBM z/OS Mainframe Practitioner badge
IBM z/OS Mainframe Practitioner
IBM • Professional Certificate • Dec 2025
Professional certificate covering end-to-end mainframe skills: z/OS, JCL, COBOL, UNIX System Services, and system programming.
IBM Z101 badge
IBM Z101
IBM • Professional Certificate • Dec 2025
Introductory professional certificate covering the IBM Z platform, its history, architecture, and role in modern enterprise computing.
Linux on IBM LinuxONE - Intermediate badge
Linux on IBM LinuxONE - Intermediate
IBM Systems • Intermediate • Feb 2026
Demonstrates intermediate proficiency in transaction processing with Linux on IBM's LinuxONE platform.
TCP/IP on z/OS Essentials Level 1 badge
TCP/IP on z/OS Essentials - Level 1
IBM Systems • Foundational • Feb 2026
Foundational knowledge of TCP/IP networking concepts and configuration within the z/OS mainframe environment.
IBM z/OS Security Essentials badge
IBM z/OS Security Essentials
IBM Systems • Foundational • Feb 2026
Foundational understanding of security principles, access controls, and best practices on the IBM z/OS platform.
AI Literacy badge
AI Literacy
IBM SkillsBuild • Feb 2026
Foundational understanding of artificial intelligence concepts, terminology, and real-world applications in modern business contexts.
Artificial Intelligence Fundamentals badge
Artificial Intelligence Fundamentals
IBM SkillsBuild • Feb 2026
Core principles of artificial intelligence including machine learning, neural networks, and AI ethics.
Generative AI Essentials: Using LLMs to Work with Data badge
Generative AI Essentials: Using LLMs to Work with Data
IBM SkillsBuild • Feb 2026
Practical application of large language models for data analysis, transformation, and insight generation using generative AI tools.
Getting Started with Generative AI badge
Getting Started with Generative AI
IBM SkillsBuild • Feb 2026
Introduction to generative AI technologies, their capabilities, use cases, and how to effectively prompt and interact with AI models.
IBM Developer for z/OS Basics badge
IBM Developer for z/OS Basics
IBM Systems • Foundational • Feb 2026
Foundational skills for developing applications on z/OS using IBM Developer tools, including editing, compiling, and debugging.
IBM Garage Essentials badge
IBM Garage Essentials
IBM • Foundational • Feb 2026
Core methodologies of the IBM Garage approach including design thinking, agile practices, and cloud-native development principles.
Modernize Applications with IBM CICS badge
Modernize Applications with IBM CICS
IBM Systems • Intermediate • Feb 2026
Strategies and techniques for modernizing legacy applications using IBM CICS, including API enablement and cloud integration.
Retrieval-Augmented Generation for Enhanced AI Outputs badge
Retrieval-Augmented Generation for Enhanced AI Outputs
IBM SkillsBuild • Feb 2026
Understanding and applying RAG techniques to improve AI output quality by grounding language model responses in retrieved external knowledge.
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Let's Connect

Want to build something amazing?... So do I. Let's talk.

I'm actively seeking full-time opportunities in data analytics.