Software Engineer & Systems Developer with an engineering background spanning back to the early 2000s.

Combining decades of foundational systems programming — from low-level architectures (x86/x64 Assembly, Win32 API, C) to modern high-performance Python engineering, asynchronous services, desktop applications, and algorithmic data pipelines.

• Decades of Craft: Writing code since the early 2000s, built on a deep understanding of memory management, operating system internals, and native Win32/POSIX runtime behavior.
• Hardware-Aware Performance: Bridging high-level Python productivity with bare-metal speed — leveraging custom SIMD SSE2 vectorized math kernels, FASM assembly, and zero-copy C extensions.
• Architectural Discipline: Strong emphasis on clean code separation, strict typing (mypy), modern tooling (uv, ruff), reproducible builds, and native assembly compilation (FASM x64).

• Languages: Python (3.10–3.15), x86/x64 Assembly (FASM), C / Win32 API
• Concurrency & Internals: Asyncio, Threading, SIMD Vectorization (SSE2/AVX), ctypes & C FFI, Inter-Process Communication (IPC)
• Desktop & UI Engineering: CustomTkinter, Flet, Tkinter, ttkbootstrap, High-DPI scaling, Native Win32/FASM x64 engineering
• Data, Math & Trading: OpenPyXL, Pandas, TA-Lib (technical analysis & pattern recognition), NumPy, SQLite
• Web, Scraping & Automation: Playwright, Requests, cURL-cffi, Pydantic, REST APIs, Session & Auth management
• Quality & DevTools: uv, ruff, mypy, pytest, Git, GitHub Actions CI/CD

• nanogemm — Minimalist, bare-metal AVX2+FMA SIMD matrix multiplication engine in ~100KB for Python, outperforming NumPy by up to 2.8x on CPU for edge neural network inference. Published on PyPI with Python 3.15 support and featured on Dev.to.
• screenvideo — High-performance desktop screen recorder and screenshot suite featuring WASAPI loopback audio, real-time H.264 streaming, and a standalone pure x64 Flat Assembler (FASM) native edition (Release v2.0.0).
• xlsx_vievers — High-performance spreadsheet library and desktop processor with a headless 129-function formula engine, hardware-accelerated SIMD SSE2 math, Chart Wizard, AutoFilter, and Goal Seek. Published on PyPI as xlsx-viewer-pro with Python 3.10–3.15 support.
• yfinance-ta-patterns — Algorithmic candlestick pattern scanner, backtesting and AI ranking suite powered by TA-Lib and yfinance. Published on PyPI with Python 3.12–3.15 support and precompiled native wheels.
• StackOverflowAPI — Modern bilingual desktop client for Stack Overflow built with CustomTkinter, Catppuccin palettes, syntax highlighting, offline bookmarking, and native FASM x64 search client.

• xtekky/gpt4free (65k+ ⭐) — PR #3514 (Merged) / Issue #3511: Fixed unhandled AttributeError on access_token in Copilot provider.
• sqlfluff/sqlfluff (8.5k+ ⭐) — PR #8449 / Issue #8171: Added support for MySQL-family CONVERT(expr, type) argument ordering across the SQL parser and rule engines.
• flet-dev/flet (11k+ ⭐) — PR #6817 / Issue #6808: Fixed Windows build crash PermissionError on read-only files during directory cleanup.
• Textualize/rich (49k+ ⭐) — Root-cause diagnosis & verified fix for Issue #4214: Resolved ZeroDivisionError in Columns when available terminal width is smaller than item width plus padding.
• Textualize/textual (26k+ ⭐) — Fix & Tests for Issue #6708: Resolved unhandled IndexError in Selection.extract when mouse selecting on/across trailing empty lines of widgets.
• Duff89/parser_avito — PR #327: Fixed critical crashes in address filter, Excel export edge cases, and GUI thread freeze.

• Telegram: @charter2029
• Email: M_N_Nik@yahoo.com
• GitHub: github.com/eminsk