Summary
Overview
Work History
Education
Skills
Websites
Certification
Languages
Timeline
Generic

Oliver Espinoza

Aguascalientes

Summary

Computer Systems Engineering graduate with backend development experience in C#, ASP.NET, JavaScript. Expertise in designing and implementing solutions using SAP PI/PO and SAP Cloud Integration (CPI), alongside a solid foundation in ABAP development. Proven track record in managing integration projects, developing scalable APIs, and optimizing database performance. Recognized for strong collaboration skills, translating business needs into technical solutions, and maintaining high code quality standards.

Overview

3
3
years of professional experience
1
1
Certification

Work History

SAP PI/PO & CPI Consultant

Capgemini
Aguascalientes
05.2025 - Current
  • Design and implement integration scenarios between SAP and non-SAP systems using SAP PI/PO and SAP Cloud Integration (CPI).
  • Configure adapters (SOAP, REST, IDoc, SFTP, JDBC, etc.) to enable communication across heterogeneous systems.
  • Develop and maintain message mappings (Message Mappings, Operation Mappings, XSLT, Groovy, JavaScript) for data transformation.
  • Manage the full lifecycle of iFlows and interfaces across development, QA, and production environments.
  • Perform interface monitoring, troubleshooting, and issue resolution using tools like Message Monitor, Trace, and Payload Logging.
  • Participate in technical reviews and integration testing (UAT, QA) to ensure solution quality and business process compliance.
  • Collaborate with functional and technical teams to gather integration requirements and translate them into efficient technical solutions.
  • Document technical developments, flow diagrams, and integration procedures for audit and maintenance purposes.
  • Configure certificates, secure connections (SSL/TLS), and manage authentication mechanisms (OAuth2, Basic Auth) in CPI scenarios.
  • Apply SAP Integration Suite best practices and align with enterprise architecture and security standards.

SAP ABAP & Integration Consultant

Softtek
Aguascalientes
04.2024 - 05.2025
  • Designed, developed, and debugged ABAP programs to meet client specifications, ensuring high performance within SAP ERP environment.
  • Migrated PI/PO artifacts to SAP CPI, creating new artifacts and implementing encryption for secure message handling.
  • Configured SFTP and SOAP services in CPI artifacts, integrating with SAP Logon transactions for proxy creation and testing.
  • Conducted comprehensive testing of artifacts using Insomnia, validating integrations with IDocs to enhance system reliability.
  • Provided technical solutions for business processes through collaboration with clients to optimize workflows.
  • Improved existing codebases to enhance execution times and increase system stability.
  • Analyzed and resolved technical issues, reducing system downtime, and streamlining operations.
  • Documented development processes and solutions to support knowledge sharing and facilitate onboarding for new team members.

Full-Stack Developer

Marelli
Aguascalientes
01.2023 - 04.2024
  • Developed and maintained RESTful APIs with ASP.NET 8, ensuring high performance and seamless integration.
  • Designed and migrated SharePoint application to modern technologies, utilizing .NET 8 for backend and Vue.js for frontend.
  • Built normalized database from scratch, integrating it for user validation and access control with robust stored procedures.
  • Deployed complete solutions across test and production environments, ensuring smooth transitions and system stability.
  • Enhanced user interfaces using Vue.js and Angular, aligning designs with user needs to improve functionality.
  • Managed SQL Server databases by optimizing T-SQL queries and maintaining data integrity across applications.
  • Conducted ongoing maintenance for applications across all layers to adapt to evolving business requirements.
  • Generated data-driven reports using Crystal Reports, providing actionable insights to stakeholders.

IT Support Specialist

Sensata Technologies
Aguascalientes
03.2022 - 11.2022
  • Configured and maintained computer equipment devices, ensuring optimal performance across organization.
  • Managed Active Directory user profiles through creation, modification, and permissions management to secure user access.
  • Implemented LAN/WAN network configurations to enhance reliability and minimize disruptions.
  • Monitored data flow across systems, optimizing efficiency for uninterrupted information exchange.
  • Troubleshot network protocol issues, including HTTP/s, TCP/IP, and DNS, reducing downtime significantly.
  • Provided technical support to internal teams by promptly resolving system and network issues.

Education

Bachelor’s Degree - Computer Systems Engineering

Universidad Politécnica De Aguascalientes
Aguascalientes
04-2024

Skills

  • SAP PI/PO and cloud integration
  • API development and integration
  • SQL Server management
  • Full-stack development
  • ABAP programming
  • Technical documentation

Certification

SAP Certified Associate - Integration Developer

Languages

Spanish
First Language
English
Advanced (C1)
C1

Timeline

SAP PI/PO & CPI Consultant

Capgemini
05.2025 - Current

SAP ABAP & Integration Consultant

Softtek
04.2024 - 05.2025

Full-Stack Developer

Marelli
01.2023 - 04.2024

IT Support Specialist

Sensata Technologies
03.2022 - 11.2022

Bachelor’s Degree - Computer Systems Engineering

Universidad Politécnica De Aguascalientes

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