Marco Tulio
IT Developer
Summary
Software Architect designing AI-enabled web platforms with Django, Node.js, SQL/NoSQL, and RAG architecture. Builds local LLM setups with Ollama and GPT OSS, connects applications to AI APIs, and shapes Linux-based environments for deployment and integration. Combines architecture planning with implementation across chat, hosting, and WebSocket-driven features.
Overview
2
2
Languages
21
21
years of professional experience
Work History
Analyst/Developer/Architect
YakHub Project
05.2025 - Current
- VPS Host Configuration.
- Django Framework installation for connectivity with AI APIs (in progress).
- Landing page And AI Chat (In progress).
- AI model creation.
- Linux setup for LLM model installation.
- LLM local Implementation (Ollama).
- GPT OSS Setup.
- Node JS Implementation WebSocket (in Progress).
- SQL, NoSQL and RAG Architecture (in progress).
Digital Transformation Consultant
DTC
02.2024 - 03.2025
- Analysis of the current company situation, definition of business operation and IT objectives to reach in digital transformation plan.
- Creation and administration of Web platform for studing support.
- Administration of Hosting for content creation.
- Implementation of JS HelpDesk ticket system.
- Technical support structure.
ORACLE PL/SQL Developer
MetLife
05.2022 - 10.2023
- Support DATA incidents related to the Business' process Issues by Analyzing Workflows and executing PL/SQL Scripts to correct DATA and apply the correction in PRD environment using SNOW tool to execute the DATAFIX correction to remediate a specific Issue.
- Analyze of issues in the DB through tickets.
- Get in contact with technical team (Actuaries).
- Validate policies' information to make sure of the correct calculations.
- Apply changes into the data base through Service Now Tool running SQL scripts.
- Analysis of PRB incidents to find the root cause of problems in database code or any other data source that impacts business' outcomes due to prevent the same issue arises over and over again, resulting in less generation of tickets caused by the same Issue.
- Analyze problems
- Create PRB documentation
- Version code changes (StarTeam)
- Apply changes into PRD database
Compliance Oracle Consultant
Amazon Mexico
07.2021 - 04.2022
- Creation, modification and review of queries SQL (Oracle DB).
- ETL programming and monitoring of Jobs executions.
- BI analysis for Tableau tool implementation for generating metrics and analytics.
Systems Consultant
Das Welt del Valle
01.2021 - 07.2021
- Data Base back up and migration of Autosoft, system used to follow all de customers' service orders.
- Analysis of system Zendesk, it is used for service desk administration and attend customers' tickets.
- Web Page Creation.
- Business Analysis.
ORACLE Database Developer
Banco Azteca
11.2018 - 04.2020
- Development and support of packages, functions and procedures in ORACLE data base, SQL, Python and Java for the Regional Credit System and Customer Database.
- Development tests and PRD-1 clone of database components.
- Set work order flow of OT's (IBM Rational Clear Case).
- Development interfaces in Python for export and import data from Data Base Documentation scripts (functions, store procedures, packages, triggers, tables).
Corporative Applications Consultant
Kellogg de Mexico
04.2011 - 09.2018
- Development and support of HR applications, security and access (SAP, SQL, Oracle, Java, Windows Server & UNIX).
- Support and taking care of payroll system requirements: (Meta4, ADAM) and time and attendance systems: (Kronos & ProWatch) and SQL Data Bases.
- ERP's: SAP (GEP & PRD), Success Factors (Employee Central).
- Hardware: Devices and panels for access control (ProWatch), proximity readers.
- Development: Java, SQL, PL / SQL interfaces, WEB solutions, UNIX, Windows Server 2013.
- ITSM: Ticket Management for business requirements.
EBS Jr. Financial Modules Consultant
STO Consulting
06.2009 - 12.2010
- Analysis and implementation of administrative modules (AP, GL, AR, FA, CA) Oracle E-Business Suite Applications.
- Implementations: TOSHIBA (Printing Assets), TOKS (Restaurant). Hypercare support after implementation.
- Corporate CRM support.
Service engineer
Grupo Caliente
03.2008 - 04.2009
- Project Lead of Installations / support and maintenance of network terminals used for gaming machines at “Grupo Caliente”.
- Windows Server Administration, Network Maintenance and terminals (touch screen, mother board, interfaces and network connectivity).
Computer Equipment Technician
CompuCity
08.2005 - 11.2007
- Repairing and maintaining new and secondhand computer equipment, SW and HW guarantees, Installation of points of sale, customer service, as well as PYMES consulting.
Education
Bachelor of Science - Administrative Informatics And Computer Systems
Technological University of Mexico (UNITEC)
10-2005
Master of Science - Mastering Project Management
UNITEC
Skills
Corporate Applications, (ERP's): SAP, Oracle EBS & Success Factors
Payroll: Meta4 & ADAM (Time and Attendance): Kronos & ProWatch
Project Management Tools: GitHub, Jira, IBM Clear Case, HP Service Desk, Microsoft Project
Office Applications: Microsoft Office365 & ASPEL(COI/SAE/NOI)
Data Bases: MySQL, ORACLE, MongoDB PostgreSQL
Programming languages: PL/SQL, Python, JavaScript
Operating Systems: Windows/Server, macOS, Linux, Unix
AI: GPT, Prompt Engineering, RAG, Cursor, Replit & Copilot
LENGUAGES
5
Timeline
Analyst/Developer/Architect
YakHub Project
05.2025 - Current
Digital Transformation Consultant
DTC
02.2024 - 03.2025
ORACLE PL/SQL Developer
MetLife
05.2022 - 10.2023
Compliance Oracle Consultant
Amazon Mexico
07.2021 - 04.2022
Systems Consultant
Das Welt del Valle
01.2021 - 07.2021
ORACLE Database Developer
Banco Azteca
11.2018 - 04.2020
Corporative Applications Consultant
Kellogg de Mexico
04.2011 - 09.2018
EBS Jr. Financial Modules Consultant
STO Consulting
06.2009 - 12.2010
Service engineer
Grupo Caliente
03.2008 - 04.2009
Computer Equipment Technician
CompuCity
08.2005 - 11.2007
Master of Science - Mastering Project Management
UNITEC
Bachelor of Science - Administrative Informatics And Computer Systems
Technological University of Mexico (UNITEC)