Languages

Java
Python
C
C#
HTML
CSS
Java Script
React JS
CSHTML/Razor

UML Diagrams

Activity Diagrams
Class Diagrams
Interaction Diagrams
Sequence Diagrams
State Machine Diagrams
Use Case Diagrams

Testing Strategies

Specification Testing
Control Flow Testing
Class Testing
Unit Testing
Integration Testing
System Testing
User Acceptance Testing
Black Box Testing
White Box Testing

Other Skills

Software V Model Design
Gantt Charts
Command Line Interfaces
Tech Support Knowledge
Logical Skills
SSH