Systems Programmer | x86_64 Assembly & Low-Level C Specialist

Location: The South

I'm a low-level developer focused on x86_64 assembly and performance-critical C for Linux systems. My projects are useful for embedded, firmware, kernel, or optimization work.

• x86_64 Assembly Language (NASM): Deep knowledge of the System V AMD64 ABI, registers, calling conventions, stack management, and optimization techniques.
• Low-Level C: Building shared libraries, custom data structures, recursive algorithms, and memory-safe code (Valgrind-clean).
• Data Structures & Algorithms: Pure assembly implementations of balanced trees, dynamic structures, and utilities.
• Systems Programming: Dependency-free designs ideal for constrained environments—no external libs (with exception of libc).
• Proven memory safety and correctness in complex, recursive code.

Lightweight Client-Server RDBMS in C++14 SQL engine with persistent B+Tree storage, persistent JSON schema, recursive-descent parser, bytecode VM, multi-threaded TCP server, encryption (libgcrypt), authentication, privileges, and ncurses client. Supports CREATE/ALTER/DROP, JOINs, subqueries, indexes, foreign keys, LOAD/SOURCE, and more. Valgrind-clean, secure systemd deployment. 🔧

Single-Threaded B-Tree in x86_64 Assembly Fully functional B-Tree with insertion, deletion, search, and rebalancing—all in assembly. C interface as a shared library. Benchmarks: ~350k–590k ops/sec depending on order. Valgrind-clean. 🚀

Single-Threaded B-Tree in x86_64 Assembly Fully functional B-Tree with insertion, deletion, search, and rebalancing—all in assembly. C interface as a shared library. Benchmarks:🔥 4.11M deletes/sec🔥 2.19M inserts/sec 🔥 2.78M mixed insert/delete ops/sec 🔥 8.4M keys bulk load: 0.008s. Valgrind-clean. 🚀

High-performance B-Tree in x86_64 Assembly + Python wrapper for Linux Fully balanced B-Tree with custom callbacks, insert/search/delete, in-order traversal. Bundled native .so libraries for Linux x86_64. Valgrind-clean core. Installable via pip. Benchmarks coming soon. 🚀

Red-Black Tree in x86_64 Assembly Classic RB-Tree with rotations, coloring, and full operations implemented from scratch in assembly. Clean C API. 🚀

ByteBuffer in x86_64 Assembly Bounds-checked byte buffer (84% assembly) with get/put for primitives (int16–64, float/double, varchar, bytes). Little-endian serialization, mark/reset/flip, shared library, and configurable C demo. 🚀

High-Performance JSON Parser/Builder Lightweight, dependency-free JSON library with assembly optimizations for tokenization and parsing. Supports nested objects/arrays. 100% Valgrind-clean. 🚀

Dynamic Array/List in x86_64 Assembly High-performance growable list with insert/search/delete/sort, bidirectional iteration, and direct indexing—all hand-written in assembly. Clean C interface as a shared library. Valgrind-clean. 🚀

Practical x86_64 Assembly Tutorial Step-by-step guide building a real shared library (libutil.so) from assembly sources. Covers ABI, linking, and integration with C. 🚀

Queue in x86_64 Assembly This is an Assembly Language implementation of a Queue (FIFO). The Queue is implemented as a shared-library with a C interface. 🚀

File operations written in x86_64 Assembly with a C interface as a Shared-Library. Designed for performance-critical applications that need direct I/O (O_DIRECT), synchronized writes (O_DSYNC). 🚀

Stack in x86_64 Assembly Stack (LIFO) Implementation in x86_64 Assembly Language with C Interface as a Shared Library. 🚀

Open to opportunities in kernel development, high-performance computing, or any role valuing assembly and systems expertise.

Feel free to star ⭐ or fork—thanks for visiting!

— JD