My field is Software Development with focus on Information Security: secure application development, design and analysis; cryptography protocols like S/MIME or SSL/TLS (implemented from scratch, used in a commercial application for over 20 years).

Please also see the FastMM4-AVX memory manager for Delphi/FreePascal (Windows, Linux) with efficient handling of multi-thread locking, at https://github.com/maximmasiutin/FastMM4-AVX