Looking for a job

Cesar Ramirez Sandoval

@cesarramirezsandoval

Message

I integrate secure fintech APIs and support critical production systems.

Mexico

Message

What I'm looking for

I'm looking to contribute to secure integrations, production support, and critical infrastructure environments where I can apply API testing, fintech systems knowledge, and continuous learning.

At STP, I integrate and validate SPEI interbank services, test financial APIs, and support production systems in a fintech environment.

I use REST/SOAP APIs, Postman, SOAP UI, curl, Kibana, JMeter, Jenkins, and SonarQube to validate endpoints, analyze logs, and run flow, stress, and performance tests. I also support secure API consumption through public/private key encryption.

Across IT support, infrastructure, and regional coordination roles, I've supported industrial, SCADA, distribution, and healthcare operations. I bring experience in Linux, SQL, Java, .NET, networking, virtualization, cybersecurity practices, and operational process improvement.

Experience

Work history, roles, and key accomplishments

Current

Integration Engineer & Production Support Specialist

Current

Sistema de Transferencias y Pagos Electrónicos (STP)

Jan 2021 - Present (5 years 8 months)

Responsible for API testing, SPEI interbank services integration, and production support. Conducted flow, stress, and performance testing using JMeter and analyzed logs with Kibana.

API Testing REST SOAP APIs Postman SoapUI CURL Java .NET Linux SQL Jira Kibana JMeter Jenkins SonarQube CI CD Secure APIs Asymmetric Encryption

Information Technology Liaison (Regional IT Coordinator)

IMSS Bienestar

Jan 2024 - Feb 2025 (1 year 1 month)

Coordinated IT operations across four zones, managed assets and inventory, and developed internal applications to optimize processes. Analyzed data using Excel pivot tables and dashboards.

IT coordination Asset Management Inventory Management Application Development Data Analysis Excel Pivot Tables Dashboarding Corporate Trainer Software Licensing

Technical Support Engineer

Perfiletto

Sep 2020 - Dec 2021 (1 year 3 months)

Installed and configured servers and microservers, and virtualized environments using VMware vSphere 6.5 for POS systems. Monitored networks, applied security patches, and managed database recovery and CCTV systems.

Server Installation And Maintenance Microserver Configuration Virtualization VSphere Network Monitoring Security Patching Database Recovery CCTV systems

IT Support Agent

Survalent

Dec 2020 - May 2021 (5 months)

Provided international technical support for SCADA systems in electricity, gas, and water networks. Managed incidents and tracked tickets using Jira, coordinating with customers and internal teams.

Technical Support SCADA Systems Incident Management Jira Ticket Monitoring Customer Coordination

Technical Support Specialist

Penske (General Motors Plant)

Aug 2019 - Sep 2020 (1 year 1 month)

Provided technical support for over 1,500 users in an industrial environment. Configured Cisco routers and switches, implemented disk encryption using McAfee ePO, and managed IT assets.

Technical Support Cisco Routers Cisco Switches Configuration Encryption McAfee EPO IT Asset Management

Support Engineer

Gotablanca Lactomark

Aug 2016 - Aug 2019 (3 years)

Provided IT support for 13 distribution centers, including Microsoft Dynamics AX client installation and user management. Managed Active Directory, DHCP, printers, DVRs, cameras, and asset control, and generated sales and operational reports using Crystal Reports and Tableau.