Programming Languages 3 IT 4 Marketing 5 Certifications True 6 Certified 1 100 Beginner 1 15 Elementary 25 Intermediate 50 Advanced 80 Expert 100 L1 1 25 L2 50 L3 75 L4 100 Beginner 1 15 Elementary 25 Intermediate 50 Advanced 80 Expert 100 Javascript 38 Python 39 C/C++ 40 Android 41 Hadoop 42 Spark 43 React 44 Django 45 RDMS 46 NoSQL 47 Go 48 Java 49 Kotlin 50 PHP 51 C# 52 Swift 53 R 54 Ruby 55 Matlab 56 TypeScript 57 Scala 58 HTML 59 CSS 60 NoSQL 61 Rust 62 Perl 63 Communication 64 Analytics 65 Digital advertising 66 Public Speaking 67 CMS 68 Email Marketing 69 Web Development 70 Database Management 71 Cloud computing 72 Network administration 73 Cybersecurity 74 DevOps 75 Machine Learning (AI) 76 Data analysis/visualization 77 Agile and Scrum methodologies 78 Mobile app development 79 Project Management 80 System Administration (Linux, Windows) 81 Virtualization and Containerization 82 IT support 83 IT infrastructure and architecture 84 IT service management (ITSM) 85 Big data technologies (Hadoop,Spark) 86 IoT and embedded systems 87 IT governance and compliance (GDPR,HIPAA,...) 88 Odoo 89 Scrum Master 90