Mário Heleno Nazareth Santos

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Senior Software Developer - Software Architect / Team Leader responsible for the study, agreement, design, and implementation of user requirements following up the teams in the development sprints, being responsible for demonstrating the final result to stakeholders and product owner. - Developer: Java developer of use cases owned by other software architects, developing REST interface end-points, reusable components using OSGi, Java or Camunda Flows, writing unit/integration (JUnit), regression (Jive), and end-to-end tests (Postman). Technologies - Backend: Java SE 8, Java EE, OSGi, BNDTools, Camunda BPMN - Test: Postman, JUnit, Jive - Database: Cassandra - VCS: Git, Gerrit, Mingle, Open Project Projects: - Ericsson Revenue Manager (RM) - Customer and Partner Interaction (CPI) layer: CPI is a component of Ericsson Revenue Manager. Revenue Manager is the evolution of Ericsson charging and billing software. Real-time, fully convergent and cloud-ready. Ericsson Revenue Manager is designed to help operators meet both the challenges and opportunities presented by the Networked Society. It is a huge, complex system with hundreds of people working worldwide. - Ericsson Charging (OCS) - Customer and Partner Interaction (CPI) layer: Ericsson Charging is a modular, scalable, open, single convergent Online Charging System (OCS) using industry standards and protocols

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Mobile Software Architect / Developer - Mobile Architect responsible for design Mobile-based solution for energy utilities. - Full-stack developer working on Mobile applications, Windows Mobile 6x and Android 14+, and also in the integration layers and web-views. - Responsible for review the system requirements analysis, interview users to get agreements of conflicting requirements, propose new features based on user feedback and usage statistics. - Team leader, responsible for code-reviews, coaching and controlling of deliverable scopes. - Responsible for Software Configuration Management (SCM), Acquisition Validation (AVAL) and Acquisition Verification (AVER) of 3rd party components used by the products. Technologies - Mobile: Android Native SDK (API 14+ support) | AsynkTask, Services and IntentServices | Retrofit and Volley | Constraint Layout (multi screen) and Material Design driven UI | Google Maps, Geocoding and Location Services | Dagger2, Butterknife | EventBus, LocalBroadcast, Broadcast, Interfaces Listeners | AIDL | Espresso and JUnit. - Mobile: Windows Mobile 6x C# NET Compact Framework | C++ Interop (PInvoke) | Telogis Geobase Maps | IBM DB2 Everyplace (synchronization) - Integration Layer: Java SE 8 and Java EE (Apache Camel) - Database: IBM DB2 and Informix - SVC: Git, Stash, JIRA, SVN, Mantis Projects: - GDIS SC: Enterprise mobile application (250+ screens, 150+ tables) used by emergency and commercial field services of energy utility companies to receive tasks and send real-time updates. Partially offline, the application uses satellite communication when 3G is not available. Design to Android and Windows Mobile rugged handhelds. - SAFEWORK Work Safety Inspection Management: system to support the management of workplace safety inspections, allowing the company to check standards protocols and accident prevention. - Other apps were built under the same framework (Windows Mobile and Android).

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Senior consultant: - Responsible to help the company in the process of transferring the development centers from different places to Shanghai and Singapore providing support for the development teams. - Code review and approval. - Provide guidance for hotfixes and new features. Front-end Software Developer - C#.NET Windows Forms developer responsible for the design and create rich and responsive client-side desktop applications for Windows Server systems (Hotfixes only). - Responsible to give guidance to evolve and fix UI/Model Framework shared with different applications of the software suite. Technologies - Front-end: C# Windows Forms, Infragistics and other open-source components used in UI composition. - Integration layer: C++ Interop (PInvoke) - VCS: Perforce Projects - Xgig 10GbE Delay Emulator (Dev Lead): simplifies test setup and configuration and provides developers with a suite of powerful yet flexible capabilities to accurately emulate a variety of real world operating conditions. - Xgig 6G SAS/SATA Traffic Generator (Developer): create network traffic at line rate to stress test equipment during development and in-network - Xgig Fiber Channel/FCoE Load Tester (Dev Lead): quickly and easily verifies data integrity, monitors network performance, and identifies a wide range of sophisticated problems across complex network topologies that would be too difficult to troubleshoot with an analyzer alone. - Xgig Jammer (Developer): manipulates live network traffic to simulate errors in real time, enabling users to verify the responsiveness and robustness of error recovery processes.

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Front-end Software Developer (Outsourcing) - C#.NET Windows Forms developer responsible for the design and create rich and responsive client-side desktop applications for Windows Server systems. - Responsible to keep the UI/Model Framework shared with different applications of the software suite. Technologies - Front-end: C# Windows Forms, Infragistics and other open-source components used in UI composition. - Integration layer: C++ Interop (PInvoke) - VCS: Perforce Projects - Xgig 10GbE Delay Emulator (Dev Lead): simplifies test setup and configuration and provides developers with a suite of powerful yet flexible capabilities to accurately emulate a variety of real world operating conditions. - Xgig 6G SAS/SATA Traffic Generator (Developer): create network traffic at line rate to stress test equipment during development and in-network - Xgig Fiber Channel/FCoE Load Tester (Dev Lead): quickly and easily verifies data integrity, monitors network performance, and identifies a wide range of sophisticated problems across complex network topologies that would be too difficult to troubleshoot with an analyzer alone. - Xgig Jammer (Developer): manipulates live network traffic to simulate errors in real time, enabling users to verify the responsiveness and robustness of error recovery processes..

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Mobile Software Developer - Full-stack developer responsible to design and build a Mobile-based solution for sales field users. - Responsible for the system requirements analysis, interview users to get agreements of conflicting requirements, propose new features based on user feedback and usage statistics. Technologies - Mobile: C#.NET Windows Forms, Windows Mobile 2003 and 5.0, NUnit - Integration Layer: Java SE, WebServices and MQ. - Database: SQLServer Projects Visiontech Mobile application for the ophthalmologic product sales force. - The solution won the prize of the best mobile solution in Brazil by Dell computers and PEGN business specialized magazine. - Allows collecting information about customers, competition products, and customers' patients. - Provides information about the company's product stock level and deals made by call center team with the customers. - Collects the location of the sales force to provide idle time information for the managers. - Works partially offline, storing data in a local database and when the connection (Wi-Fi or 3G shared by paired Bluetooth devices) is available, it synchronizes the data using web services, MQ and SQLServer.

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Responsible for maintaining Microsoft Windows based servers and user stations, the design of policies and resource management to keep services up time.