Leonardo Roberto Lopez
$23/hr
Senior Technical Support Engineer | IAM (WSO2) | Incident Analysis & Troubleshooting | Java & SQL
Leonardo Roberto LOPEZ
IT Support Specialist | Python/Django Instructor | Identity & Access Management (IAM) |
Java & SQL
Date of birth: 23/03/1980
Argentinian – Spanish (Spanish Citizenship and Passport)
Marital status: Single, 1 daughter
DNI:-
Solis 530, 1° A – Montserrat – Buenos Aires, Argentina
Mobile: --
EDUCATION
2016 – Java Standard Programming J2SE 6.0 (Educación IT)
2012 – 2014– UTN (National Technological University)
Advanced Technician in Programming.
2007 – 2008 – SAP Argentina SA – FI Certification (ERP 2005), Score: 87/100
Certified Consultant by SAP ID: S-
1999 – 2005 – University Studies – Graduated
University of Buenos Aires – School of Economic Sciences
Degree: Licentiate in Business Administration. Focus: Informatics
1993 – 1998 – High School
Colegio Nuestra Señora de Fátima – Degree: Mercantile Expert
OTHER STUDIES
English:
● First Certificate Level
● Advanced Conversation Course (AACI)
IT Skills:
● Operating Systems: DOS, Windows 2016, Unix, Sun, AIX, Linux.
● Programming Languages:
○ Java: advanced (7/10)
○ HTML, CSS, javascript (intermediate) Python and Django (intermediate)
○ SQL Programming
○ ABAP: Logic level (7/10)
● SAP (Functional Knowledge): MM and FI modules (Certified)
● Backup and Storage:
○ TSM (Tivoli), Data Protector, Brightstor, Legato, Veritas
○ Systems: Unix, Sun, AIX, Linux, Windows
● Databases: Oracle, SQL, Mysql, Postgre (intermediate level)
Teaching:
- SAP FI/CO Instructor
- IT Instructor in Education IT (java, SQL Server, Mysql, Java Web, HTML, CSS, Python,
Django)
PROFESSIONAL EXPERIENCE
WSO2 Inc. – Senior Software Engineer
January 2022 – May 2025 (3 years 5 months) – Remote
● Provided technical support for enterprise clients using WSO2 Identity Server (5.6–7.1
[1]), focusing on post-implementation issues and implementation-related cases.
● Resolved incidents in Asgardeo and handled migration issues and version upgrades.
● Solved tickets of varying severity for different clients.
● Troubleshot product code, extensions, logs, and configurations; conducted live
troubleshooting calls.
● Participated in daily support calls with team members and clients, providing guidance
on technical issues.
● Performed log patching to identify root causes in complex incidents.
● Created product patches and submitted them to GitHub queues for the product team
to review and resolve bugs.
● Supported cases across infrastructure layers: databases, operating systems,
networking, Kubernetes, and AWS.
● Assisted with cross-product cases (e.g., APIM Key Manager).
● Achieved WSO2 Practitioner and Developer certifications.
● Authored technical articles and guides on WSO2 Identity Server [2].
● Strong experience in Java-based product analysis and debugging.
[1] - https://is.docs.wso2.com/en/latest/
[2] - https://medium.com/@leonardor_2734
TGV – Application Support Consultant
2018 – 2020 (3 years)
Provided technical and functional support for enterprise environments across manufacturing
and finance.
Main responsibilities:
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SAP (Logistics module) and Flexnet first-level support
Software deployments in QA and production environments
SQL Server queries and data manipulation
System backups and restorations
Incident resolution and documentation for custom financial applications
Task automation via scripting
ICBC – eBack-Office Analyst
May 2015 – 2018 (3 years)
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Level 2 incident resolution for users and final clients in eBanking
Coordination between HelpDesk, Monitoring, and technical teams
Functional analysis, change management, and production deployments
Internal certificate management
Application flow analysis
HP (Hewlett-Packard) – Backup & Storage Analyst (Level 1 Advanced)
January 2010 – February 2015 (5 years)
● Management and monitoring of backups for LATAM and Europe clients
● Tools: TSM, Data Protector, Brightstor, etc.
ADP Consultores SRL – SAP FI-CO Junior Consultant
2007 – 2010 (3 years)
Provided SAP FI/CO support and training as part of a consulting team. Responsibilities
included ongoing support, system maintenance, SAP implementations, user training, and
documentation.
Key contributions:
● Participated in maintenance and support tasks for financial modules in large-scale
SAP implementations.
● Provided remote SAP FI/CO support and helped optimize financial processes.
● Collaborated on a data migration project involving master data in SAP FI/SD/CO
modules.
● Customized SAP functionalities and supported ABAP logic validation.
● Delivered SAP FI training sessions for end users and junior consultants.
● Assisted with functional issue resolution and SAP configuration adjustments based
on business requirements.
Global Refund Argentina – Back-office / Technical Support
2002 – 2006 (3 years)
Performed administrative, technical, and customer support tasks in a bilingual environment.
● Data entry and general back-office operations
● Server backup tasks and basic technical support
● Bilingual customer service (English/Spanish) for international clients
