Liu Arevalo

* Designed, developed, and maintained RPG ILE / SQLRPGLE applications supporting high-volume core banking systems (e-IBS). * Built and exposed REST/SOAP services for integration with digital channels and distributed systems. * Optimized DB2 for i queries and improved performance and data reliability. * Integrated IBM i applications using JSON, XML, and MQ messaging. * Performed production support, root cause analysis, and performance tuning. * Contributed to modernization initiatives, transitioning legacy modules to free-format RPG and service-oriented architecture. Stack: IBM i, RPGLE, SQLRPGLE, DB2 for i, APIs, JSON, XML, MQ

* Modernized legacy IBM i applications using RPGLE and SQLRPGLE. * Designed service programs and reusable components for modular architecture. * Optimized DB2 for i queries, improving application performance. * Exposed IBM i data through RESTful APIs for integration with external platforms. * Collaborated in hybrid environments integrating IBM i with distributed and cloud systems. Stack: IBM i, RPGLE, SQLRPGLE, DB2, REST APIs, JSON, AWS

* Led integration initiatives between IBM i Core Banking (e-IBS) and mobile/digital platforms. * Designed and developed transactional services using RPGLE / SQLRPGLE. * Built CL programs for batch processing, job automation, and operational control. * Integrated IBM i with enterprise systems using REST APIs, MQ messaging, JSON/XML. * Provided production support, incident resolution, and system stabilization in high-availability environments. * Conducted code reviews and enforced development standards across the team. Stack: IBM i, RPGLE, SQLRPGLE, CL, DB2, APIs, MQ

* Maintained and enhanced IBM i applications supporting credit, accounts, and financial operations. * Developed and optimized RPGLE / SQLRPGLE programs and batch processes in CL. * Resolved production issues and implemented corrective and preventive solutions. * Improved transaction processing and accounting routines in core banking systems. Stack: IBM i, RPGLE, SQLRPGLE, CL, DB2

* Designed, developed, and supported high-volume transactional applications for Banks Core systems (BankVision, Finacle, ITS(Integrated Transactional System), WOLF Branch, Delfin Leasing). * Implemented solutions for collections, payments, credit products, savings/current accounts, and mortgage systems, supporting both online and batch processing. * Integrated IBM i applications with enterprise platforms including Finacle, SAP, BankVision, and SIF, ensuring reliable data exchange across systems. * Participated in system reengineering initiatives, improving performance and maintainability of legacy applications. * Developed and maintained programs using RPGLE / SQLRPGLE, CL, and DB2 for IBM i. * Provided production support, incident resolution, and continuous enhancements in a high-availability banking environment. Stack: IBM i (AS/400), RPGLE, SQLRPGLE, CL, DB2/400, Agile/Scrum, Azure DevOps (VSTS), RDi, Aldon

* Designed, developed, and maintained applications for the e-IBS Core Banking system, supporting key banking operations. * Implemented solutions for remote deposits, loan portfolio management (agricultural and mortgage), guarantees processing, and automatic debit (domiciliation) systems. * Developed regulatory and financial reports, including government reporting (AT04, AT07, AT21) and credit reporting modules. * Built and maintained transactional programs using RPG ILE, CL, and SQL on DB2 for IBM i. * Provided production support and system enhancements, ensuring availability, data accuracy, and performance optimization in a regulated banking environment. Stack: IBM i (AS/400), RPG ILE, CL, SQL/400, DB2/400, Core Banking e-IBS

* Analyzed, designed, and developed applications for the e-IBS Core Banking system, supporting critical banking operations. * Implemented solutions for trust systems, foreign currency management, loan recovery (charged-off portfolio), and credit card processing. * Developed and maintained transactional programs using RPG ILE, CL, and SQL on DB2 for IBM i. * Supported business processes including commission collection, overdraft processing, and product maintenance. * Provided production support and enhancements in a high-volume financial environment, ensuring system stability and accuracy. Stack: IBM i (AS/400), RPG ILE, CL, SQL/400, DB2/400, Core Banking e-IBS

* Analyzed, designed, and developed complementary applications for the e-IBS Core Banking System supporting critical banking operations. * Implemented solutions for clearing & settlement, tax collection, teller payments, and internet banking channels. * Developed backend logic and batch processes using RPG ILE, CL, and SQL on DB2 for IBM i. * Integrated new modules with the core banking platform ensuring transactional integrity and regulatory compliance. * Provided maintenance and enhancements for high-volume financial transaction processing. Stack: IBM i (AS/400), RPG ILE, CL, SQL/400, DB2/400, Core Banking e-IBS.

* Analyzed, designed, and developed enterprise applications on IBM i (AS/400) supporting retail operations and inventory management. * Maintained and enhanced systems integrated with SAP ERP (SD / MM modules) for sales distribution and material management processes. * Developed and maintained applications for the Island Pacific Merchandising System (IPMS) used in large-scale retail operations. * Implemented database access and batch processes using RPG ILE, CL, and SQL on DB2/400. * Supported system migration and modernization initiatives improving operational efficiency. Stack: IBM i (AS/400), RPG ILE, CL, SQL/400, DB2/400, SAP (SD/MM), IPMS.

Developed and maintained core banking applications for the Credit Portfolio and Risk Management modules within the SIAF (Integrated Financial Automation System). Key Responsibilities * Analyzed, designed, and developed financial applications on IBM i (AS/400). * Built and maintained RPG and RPG ILE programs supporting credit operations. * Developed database access logic using SQL/400 and DB2 for i. * Designed display files and reports using SDA and RLU. * Implemented CL programs for job control and batch processing. Stack IBM i (AS/400), OS/400, RPG, RPG ILE, SQL/400, DB2 for i, CL, SDA, RLU

A.- Ability to apply knowledge of mathematics and information technologies. B.- Ability to analyze a problem and define the appropriate computer requirements for its solution. C.- Ability to design, develop, implement and evaluate information systems based on technology and processes that meet specific needs. D.- Ability to work as part of a multidisciplinary team. E.- Understanding of ethical and professional responsibility. F.- Ability to communicate effectively orally and in writing in Spanish. G.- Ability to communicate in English. H.- Criteria to understand the impact of the solutions of your professional career in the global, economic, environmental and social context. I .- Recognize the need to continue learning throughout life and have the ability and attitude to do so. J .- Know contemporary issues. K .- Have the ability to lead and undertake.

Systematic study of the English language by levels A1, A2, B1, B2 according to the European framework

Entrepreneurial, analytical professionals, with solid knowledge of information technology, capable of leading IT areas and developing applications that allow automation and optimization of processes, taking proper advantage of an organization's resources to support decision-making and the achievement of its objectives.