Software Engineer for 20+ years. I consider myself to be proficient with:

• Coding in C, C++, Rust, Python, Go, Bash
• Full stack web development
• Compiler construction with LLVM, designing languages
• Linux command line interface and system stuff
• Database schema design and management with MySQL, PostgreSQL
• Building and consuming RESTful APIs
• Generative graphics and other graphics concepts
• Game theoretic algorithms
• Market design, matching engines
• Basic cryptography & related security considerations (not foot aiming)
• Cloud computing infrastructure using AWS
• Options Collateralization (in derivatives markets)