Andrés Cabrejas Email & Phone Number

Buenos Aires Province, Argentina

Argentina

Customer: Medife Design and development of electronic invoice applicationsDeveloped Java spring boot backend application to facilitate efficient invoice management.Use SOAP-based integration with AFIP (Argentine Federal Tax Administration)Served as the backend foundation for a React frontend application.Leveraged Hibernate to efficiently persist invoice data within an Oracle database.Implemented robust email functionalities to support key business processes.Adhered to rigorous standards through comprehensive unit and integration testing.

Argentina

Client: Omint Group. Led and architected the design and development of web applications for healthcare management systems in clinics and prepaid services.Managed a development team responsible for resolving help desk Level 2 and 3 incidents.Collaborated with stakeholders to gather requirements and define system specifications.Oversaw knowledge transfer among team members, enhancing both functional and technical skills.Designed and developed new features based on customer requirements, ensuring quality, scalability, and security of software systems

Argentina

Led and collaborated with stakeholders to gather requirements and define system specifications for web applications at Omint Group, Telefónica Argentina, Macro bank, goverment agencies.Designed, developed, and implemented high-quality web applications using C#, VB .NET, HTML5 and css, JavaScript, typescript, AngularJSUtilized SQL Server databases to effectively store and manage data, ensuring the quality, scalability, and security of software systems.Developed Birt reports and ensured the compatibility and responsiveness of web applicationsMentored team members and facilitated knowledge transfer to enhance both technical and functional skills.

Argentina

Client: First DataResponsibilities:Designed and developed an onboarding system for retail establishments to register their data for receiving POS (Point of Sale) terminals.Utilized Java and Spring Boot for backend development, implementing SOAP for communication with the backend services.Developed the frontend using AngularJS, ensuring a user-friendly interface.Managed data storage and retrieval with a DB2 database.Technologies: Java, Spring Boot, SOAP, AngularJS, DB2.

Argentina

Responsibilities:Design, develop, and implement enhancements to the seamless pipe production planning system Collaborate with stakeholders to gather requirements, analyze processes, and define system specifications.Utilize Visual Studio C++ and C# programming languages to create and maintain software components.Employ SQLite and Access databases to store and manage production data.Technologies:Visual Studio C++, C#, SQLite, Access

Argentina

Developed of strategic reports for decision-making in security matters for the Argentine Public AdministrationResponsibilities:Design, develop, and implement high-quality web applications Ensure the compatibility and responsiveness of web applications on Windows operating systems.Technologies: Utilize Java Wicket, Javascript, HTML5, CSS3, Birt reports. SQL Server

Maintenance and Reengineering of Distributed Applications for Handling Large Volumes of Information from the Service Invoicing and Long-Distance Calls SystemResponsibilities:Maintained and reengineered distributed applications to handle large volumes of information from the service invoicing and long-distance calls system.Optimized performance, migrated, and redesigned the data warehouse.Scheduled and automated the execution of distributed processes.Provided maintenance for the invoicing management system.Interacted remotely with various development teams in the US and India, providing programming support and design guidelines.Employment: Contracted through Sistemas Globales SA in 2013.Technologies:Programming Languages: C++, Java, ASP .NET, Perl, Pro*C, Oracle PL-SQLDatabases: Oracle, SybaseOperating Systems: Unix, SunOS, Aix, Linux, Tandem Hp

Experience in designing, developing, and implementing distributed systems at different financial entities.Most of them worked on AIX, Linux and Windows operation systems in C++ environment with Oracle databases.Network Interface for Bank Transactions at Red Banelco SA / Banco Itaú Buen Ayre S.A.Developed a communication interface for bank transactions between the networks of Banco Itaú Buen Ayre S.A. and Banelco S.A.Automated testing of applications running on Mainframe, Internet Banking and Tandem Base24 systems.Transactional SwitchDesigned and developed at Banco de la Provincia de Córdoba, a transactional switch for routing and authorizing bank transactions between branches, self-service systems, and the central system.Communication Interface for Bank TransactionsDeveloped al Banco de la Provincia de Córdoba / Link SA, a communication interface for bank transactions between Banco de la Provincia de Córdoba and Link S.A.

At Telefónica Unifon and the previous firm Miniphone I develope and maintaine logistics, inventory management, and supply chain systems. Worked in MVS, Windows, and UNIX environments with Ingres and Oracle databases.Some of teh projects were:Implementation of an automated warehouse management and cellphone distribution system, including serialized card logistics.Coordinated the conversion and implementacion of prepaid card stock system at Telefónica Unifón/Miniphone SA Managed projects related to the spin-off of Miniphone S.A. into Telefónica Unifón S.A. and Telecom Personal S.A.Led the functional unification and data conversion of management systems for Buenos Aires and the interior at Miniphone SA

Barcode Voting System for the Y.P.F. S.A. Board of DirectorsGraphic Document Format Conversion SystemRS232 comunicationEnvironment: OS/2Database: DB2Programming Language: VisualAge C++

Argentina

Development of a real-time data tracking system for the an assembly line worked on OS/2 environment with DB2 database and programming Language VisualAge C++.

Customer Support and Software InstallationEnvironments: OS/2 and WindowsDatabase: DB2Programming Language: VisualAge C++Teaching Experience: Instructor for Object-Oriented Programming course using VisualAge C++Introduction to Visual Application Builder at U.B.M.

Installation of access control terminals. Extract and generate reports in C langage.

IGCSE Mathematics Teacher: Prepared students for the IGCSE Mathematics exam.Computer Workshop Instructor: Taught students basic computer skills.