Programming: Python, Java, JavaScript, C/C++, Perl, UML, PHP, (X)HTML, CSS, XML, XSL, XSLT, SQL/MySQL, Ruby, Kotlin, Go, Matlab, R, LISP, Julia, Haskell, Prolog, Scala, Rust, Kubernetes.

Mathematic Analysis: Matlab, R.

Forensic Analysis: Computers, Storage (HD, USB memories, etc.), Tablets, Smartphones, Smartwatches, Security Cameras, IoT Devices, Email, WhatsApp, Social Networks, Cloud, Online Platforms, Online Shopping (Amazon, AliExpress, Shein, etc.), Documents, SMS, WiFi, Bluetooth, Bluejacking, Bluenarfing, NFC, Phishing, Smishing, Malware (Viruses, Trojans, Spyware, AdWare, etc.), Ransomware, DoS, Spoofing, Overlay,  Typosquatting, Qrishing, Clickjacking, Double-clickjacking, GenAI Deep Fakes, SIM Swapping, GPS tracking, Google Maps (geo-location, tracking), etc. 

Artificial Intelligence: Machine Learning  [ML], Deep Learning [DL], Large Language Models [LLM], AI Algorithms, Business-applied AI, AI Tools, AI Productivity, Development of AI Applications, Chatbots, AI-Marketing, AI Cybersecurity, AI Legality and Compliance, AI Ethics, Training.

Cybersecurity: Network Security Monitoring, Encryption, Web Vulnerability Scanning, Network Defence Wireless, Packet Sniffers, Antivirus Software, Firewall, PKI Services, Managed Detection Services, Penetration Testing, Training. 

Cloud: AWS, Google Cloud, Microsoft Azure, Oracle Cloud.

Web Positioning: SEO, SEM, AEO, Google Analytics, Google Search Console, Google Ads, Keyword Tool, UberSuggest, WooRank, PageSpeed Insights, Moz, SE Ranking, SemRush, Similar Web, etc.

CMS: Drupal, Joomla, Wordpress, Prestashop.

Google Workspace: Gmail, Meet, Chat, Calendar, Drive, Docs, Sheets, Slides, Forms, Sites, Keep, Apps Script, Cloud Search, Jamboard, Security & Management, Admin, Endpoint, Vault, Work Insights, Complements, Voice, AppSheet, Analytics, Search Console, etc. 

Operating Systems: Linux, Windows 10/11, Android, iOS.

Networks: SOA, COMNET-III, NS2, Wireshark, WinPcap, DITG, etc.

Wireless: GSM, UMTS, WiFi, WiMAX, LTE, 5G, Bluetooth, ZigBee, etc.

IoT/WSANs: TinyOS, Contiky, Arduino, Oasis, TinyDB, TinyDDS, Esoa, Cartago, Mica-Z, Mica-2, SunSPOT, Intel Mote-2, Crossbow, etc.

Semantic Web: RDF, OWL, Protege, etc.

Software Verification: SPIN, Maude, JavaPathFinder, etc.

Simulation: Arena, Simulink, Simscript.

Electronics: Or-CAD, P-Spice, Promax, VHDL, Tango.

Systems Maintenance: Sys Tools, Benchmarking, etc.

Suites: Microsoft Office, Star Office, Open Office.

Photography: Adobe PhotoShop, Corel Draw/PhotoPaint, etc.

Virtual Environments/Collaborative Tools: Google Workspace, Moodle, Skype, Group Scribbles, Crocodoc, Foodle, Nuxeo, Doodle, EtherPad, LifeRay, MeetingSphere, SurveyMonkey, Question Pro, Zoomerang, Mantis BT, JIRA, etc.

Social Networks: Linked-In, Facebook, YouTube, Instagram, WhatsApp, Twitter, Tik Tok, Threads, Bluesky, etc.

Marketing.