Jose Carlos Rojas Albornoz, Developer in Mérida, Mexico
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Jose Carlos Rojas Albornoz

Bio

Carlos is an IT professional with 25 years of experience in Oracle environments, Java, Python, and various integrations. He has a strong data science background and has worked in several roles analyzing data and providing support to customers. Carlos is seeking new, challenging experiences with Oracle products and services.

Portfolio

Freelance.com
MDM, ETL, EDIFACT, B2B, Data Warehouse Design, Business Intelligence (BI)...
e-Solutions
Oracle, Java, Integration, REST, Agile, ServiceNow
Freelance.com
Oracle Integration Cloud (OIC), Oracle Data Integrator (ODI)...

Experience

  • PL/SQL - 20 years
  • Linux - 20 years
  • Oracle - 20 years
  • Integration - 8 years
  • Java - 8 years
  • Agile Software Development - 6 years
  • Python 3 - 4 years
  • Data Science - 4 years

Preferred Environment

Oracle, Linux, Unix, Python 3, Java, PL/SQL

The most amazing...

...accomplishment I've achieved is being able to work with technology and learn new things in the field every day.

Work Experience

MDM Data Governance

2024 - 2025
Freelance.com
  • Applied experience in ETL processes for the customer.
  • Worked with different teams around different time zones.
  • Analyzed information and organized the customer dashboards.
Technologies: MDM, ETL, EDIFACT, B2B, Data Warehouse Design, Business Intelligence (BI), Data Warehousing

Senior Software Developer

2024 - 2025
e-Solutions
  • Conducted development and support for customers' daily activities.
  • Tracked all customer incidents and requests on ServiceNow.
  • Solved most of the main client issues, reducing the existing backlog.
Technologies: Oracle, Java, Integration, REST, Agile, ServiceNow

HCM & Integration Architect

2024 - 2024
Freelance.com
  • Worked with a hospital customer based in the US to integrate HR and payroll information.
  • Applied experience to build OIC and ODI integrations between the bakery customer and 3rd-party apps.
  • Developed KPIs and dashboards for executive data visibility and continuous improvement.
Technologies: Oracle Integration Cloud (OIC), Oracle Data Integrator (ODI), Oracle File-based Data Import (FBDI), Oracle Cloud, Oracle HCM Cloud

Data Warehouse & Data Architecture Lead

2022 - 2024
Citi
  • Directed Oracle HR Data Warehouse architecture supporting analytics and workforce planning.
  • Designed ETL/ELT pipelines integrating Snowflake, Salesforce, and Oracle Fusion.
  • Implemented ODI/SOA integrations, ensuring secure, high‑availability data flows.
Technologies: Oracle Database, Python 3, Informatica ETL, ETL, Business Intelligence (BI), Data Warehouse Design, Data Warehousing

MDM & Data Architect

2020 - 2022
Qualtop
  • Implemented enterprise MDM using Stibo STEP for customer, supplier, and employee domains.
  • Designed ETL/ELT processes and data governance controls for unified master data repositories.
  • Built custom data applications using VBCS and APEX to extend MDM and HCM capabilities.
Technologies: Oracle E-Business Suite (EBS) R12, Oracle Database, Oracle Integration Cloud (OIC), Oracle Data Integrator (ODI), MDM, ETL, Business Intelligence (BI), Data Warehousing

Oracle SOA Developer

2020 - 2020
Valtre
  • Developed Oracle SOA integrations for retail customers, connecting Oracle EBS with third-party payment and order management systems.
  • Implemented B2B/EDI integration flows supporting ANSI X12, EDIFACT standards for supply chain data exchange.
  • Created PL/SQL and Java J2EE web services for Oracle EBS 12.2.6 Payment Engine integration.
Technologies: Oracle SOA Suite, Oracle BPEL Process Manager, Oracle Data Integrator (ODI), EDIFACT

Experience

Trintech Demo

This was a demonstration of my professional work and experience, featuring customer presentations. It was an exercise that took three days to prepare for the customer. All the information used in the project was dummy data, intended solely for demo purposes.

Mckesson Migration Project

The project is a migration of Oracle and PostgreSQL databases and application servers from an on-premises environment to the AWS platform, including data migration from third-party applications. A CI/CD strategy, Git, and agile methodology were applied.

Education

1994 - 2000

Bachelor's Degree in Computer Science

Autonomous University of Yucatan - Merida, Mexico

Certifications

MARCH 2026 - PRESENT

Data Science

Desafio Latam

AUGUST 2025 - PRESENT

Formación Estadisticas y Machine Learning G8 - ONE

Alura

MAY 2025 - PRESENT

Oracle Fusion Cloud Applications HCM Certified Foundations Associate

Oracle University

JUNE 2024 - PRESENT

Oracle Cloud Infrastructure 2024

Oracle University

OCTOBER 2010 - PRESENT

ITIL V3 OSA Level

EXIN

Skills

Tools

Informatica ETL, Oracle E-Business Suite (EBS) R12, Oracle SOA Suite, Tableau

Languages

Python 3, Java, C, C++, Fortran, COBOL, Lisp, Jython, SQL

Platforms

Oracle, Linux, Unix, Oracle Integration Cloud (OIC), Oracle Data Integrator (ODI), Oracle Database, Oracle BPEL Process Manager, Oracle Cloud Infrastructure (OCI)

Storage

PL/SQL, MySQL, PostgreSQL, Data Pipelines, Oracle Cloud, PostgreSQL 10

Paradigms

Agile Software Development, REST, Agile, Business Intelligence (BI), ETL, B2B

Other

Data Modeling, ITIL V3 Foundation Certified, Integration, Data Science, Statistical Learning, Data Warehouse Design, Data Warehousing, Computer Science, ServiceNow, Large Language Models (LLMs), MDM, EDIFACT, Oracle File-based Data Import (FBDI), Oracle HCM Cloud

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