Independent developer of Android applications, websites, and custom software. This website brings together my apps, own projects, certificates, and professional badges.
SAP professional with more than 10 years of experience in critical projects on R/3 and S/4HANA environments, specialized in SAP IS-U processes and focused on designing, building, and executing complex technical solutions that deliver tangible, sustainable, and maintainable results.
I combine full-stack experience in frontend and backend with solid knowledge of infrastructure, networks, performance, and system operations. This allows me to approach projects end to end: from functional and technical design to development, integration, deployment, optimization, and ongoing support.
I also design and maintain my own production systems based on high-performance hardware, such as DELL PowerEdge R630 and MikroTik CCR2116-12G-4S+, controlling every technology layer: code, servers, network, security, performance, monitoring, and availability. In web projects I look for measurable results, including advanced optimization and maximum PageSpeed Insights scores when the technical context allows it.
As an independent developer, I also create and publish Android applications for international marketplaces such as Google Play, Huawei AppGallery, Samsung Galaxy Store, and other mobile ecosystems. I work with a worldwide vision: I prepare apps for users from different countries, manufacturers, and devices, taking care of compatibility, store listings, icons, screenshots, promotional images, texts, translations, documentation, privacy policies, legal terms, consent, analytics, stability, and publication review.
I develop my own projects in Android, web, PHP, .NET, SAP, automations, and integrations. The main images, texts, designs, code, and materials in my projects are created and maintained by me, except for third-party libraries, SDKs, APIs, services, or components used where appropriate.
I have experience in technical leadership, management, and team coordination, bringing strategic vision, technical rigor, and a constant commitment to quality, scalability, and innovation. I focus on challenges that require advanced technical skills and a global vision capable of connecting business, software, infrastructure, and real operations.
Own web projects and developer/support pages.
Professional background in SAP development, technical leadership, ABAP programming, technology training, and technical support.
✘ Clients - Acciona - Berge Infraestructuras y Servicios Logisticos, S.L. - Nortegas - TotalEnergies - UFD - Electricity distributor of the Naturgy Group ✘ SAP modules SAP IS-U, SAP PM, SAP FICA, SAP MM, SAP SD and SAP BASIS.
✘ Clients - Bidafarma
✘ Clients - ServiHabitat - SVH • R3 and FI enhancements (area lead). • R3 projects; technical design writing, management and coding. • GO-FI; support and incident resolution. - Barcelona City Council - IMH • Programmer in the development team. ✘ SAP modules TRM, PSCD, FI, PM, MM, SD, IS-U Migration and Basis. ✘ SAP knowledge, object types and programs - ALV Grid Control, OOP and structured. - Authority-check object and roles. - BRFplus (Business Rule Framework plus). - Job control from transactions, through launcher reports and child reports. - Creation and management of logs; adding messages, deletion, saving. - External and internal emails in SAP. - Emigall (SAP IS-U Migration Workbench). - F4 helps and exits for search helps. - Change request management (ChaRM). - Batch Input recordings (SHDB). - RFC function groups/modules. - SAP InfoSets and Queries. - Area menus. - Module Pool. - Process monitoring by trace and runtime. - Process parallelization. - Subroutine pool. - Psobwork (PSCD: Contract Object). - Enhancement points • Explicit and implicit enhancements. • Customer Exits • BAdIs • BTE (Business Transaction Events) • User exits - Recursion. - Reports. - SAPScripts (control program and form). - SmartForms and SmartStyles. - Transport Management System (STMS), workbench and customizing transport requests. - Validations, substitutions and rules for FI: MIRO, MIR7, FB01, etc. (condition, check, message). - Online and background variants; static and dynamic. - Read/write files (CSV/TXT/Excel). + Web Dynpro. • Search helps - OVS (Object Value Selector) - Dictionary - Freely Programmed Input Help • ALV (ABAP List Viewer) • Common controls. - Other: data elements, domains, views (display, maintenance, validation/self-information events), tables, structures, types, etc.
✘ Categories - Block-based programming - Augmented reality - Electronics and robotics ✘ Courses - App Inventor (14-18 years old) - BQ Kids (10-12 years old) - Scratch (7-14 years old) - 3D modeling (10-18 years old) - Kodu (12-14 years old) - Coloring with Chromville (4-7 years old) - Learning with Lightbot (4-7 years old) - Augmented reality (5-7 years old) - Scratch Junior (5-7 years old) - BQ Teens (12-14 years old).
✘ Skills and knowledge acquired at SAS - Auditing and tidying communication cabinets in health centers and the health district. - Assembly and repair of computers, peripherals and printers. User workstation management. - Management and installation of Citrix, Diraya, Symantec Management Console/Agent, UltraVNC, Look LAN and Mozilla Thunderbird, among other software. - Management of healthcare professional agendas. - Support for migration of the RCJA network from version 2 to version 3 (v2 -> v3). IP telephony.
Licenses and certifications published on my professional profile.
Badges and professional recognitions.