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Alexei Brown

ALEXEI BROWN

Software Engineer — Developer Tools & AI Coding

Sydney, Australia · contact via email · download PDF for full contact

qalarc.com/projects · linkedin.com/in/alexei-brown · github.com/fivelidz

Software engineer building developer tools at the AI / coding-agent frontier. Maintainer of QalCode (OpenCode fork with Anthropic OAuth + non-AVX support), gmux (gesture-aware terminal multiplexer) and the Qalarc Hub messaging bridge. Daily user of Claude Code, OpenCode and the broader AI coding ecosystem across Linux / Termux / Android.

Technical Skills

Languages
Python (primary) · JavaScript / TypeScript · SQL · Kotlin / Java (Android) · Familiarity with C / C++ and Go
AI / ML
PyTorch, TensorFlow, scikit-learn · pandas, NumPy, signal-processing pipelines · Deep learning, attention / transformer architectures · Computer vision (OpenCV, MediaPipe, ArcFace) · NLP, text classification, embeddings, LLM integration · Model evaluation, benchmarking, ablation studies · Behavioural intelligence over time-series sensor streams
Sensor & Signal
Software-Defined Radio — HackRF / Airspy / RTL-SDR panoramic scanning, RF spectrum analysis · Real-time DSP: decimation, phase-continuous VFO mixing, anti-alias filtering (rfai-dsp library, 18 tests) · Live waterfall/spectrum visualisation, demod pipelines (WFM/NFM/AM/SSB), RMS-based VAD · Bluetooth Low Energy (BLE) — scanning, fingerprinting, GATT exploration, protocol analysis · Wearable / phone sensor fusion (sleep, HR, HRV, accelerometer, rPPG) · Real-time inference on noisy, incomplete, adversarial data · Speech: Whisper STT (GPU-accelerated via faster-whisper/ROCm), voice activity detection
Infra & MLOps
Linux (Arch / CachyOS / NixOS) day-to-day · Docker / containerisation · Git, GitHub, automated CI/CD · OAuth 2.0 implementation · Cloud: Azure (Data Factory, Databricks), GCP (BigQuery), Cloudflare (Pages/Workers) · Edge / on-device inference: Ollama, ONNX Runtime Web, ROCm, quantised models
Robotics & HW
MediaPipe-based gesture / hand / face tracking pipelines · Servo control (FEETECH ST-3215-C047) on InMoov i2 robotic hand · SO-ARM101 robot arm with MuJoCo simulation + imitation learning · 3D printing for drones, cinewhoops, payload grabbers, perching legs

Experience

Developer Experience Engineer — Sahha · Remote (NZ-based company) · Current

Health Data Intelligence Platform — sensor data → behavioural intelligence

AI Engineer — Hypadrive · Auckland, NZ (remote) · Jun 2022 – 2024

Machine Learning & NLP

Legal Researcher (AI Ethics) — University of Newcastle Law School · Jun – Dec 2021

AI Regulation & Ethics

Selected Projects

Live demos and full write-ups on qalarc.com/projects

QalCode qalarc.com/projects/qalcode

OpenCode fork with working Anthropic OAuth and non-AVX CPU support

Maintained fork of OpenCode (Claude Code's TUI) that runs on non-AVX CPUs — Celerons and older accessibility hardware. Fixes Anthropic OAuth, improves the terminal UI and adds mobile optimisations.

Stack: TypeScript · Bun · OAuth 2.0 · CLI development

gmux — Gesture Terminal Multiplexer qalarc.com/projects/gmux · live demo

Gesture and voice layer on top of tmux for running multiple AI agents

Reimagining terminal multiplexing for AI-agent workflows: gesture-controlled agent dashboard, voice commands, tab cycling between tasks/chat/hardware, pinch-to-click overlay, 10 themes, live mock agent state.

Stack: TypeScript · MediaPipe · Terminal UI · WebGL

Qalarc Hub — Messaging Bridge github.com/fivelidz/signal-whatsapp-hub

Single Signal + WhatsApp session exposed as a localhost HTTP API for AI agents

Tauri desktop app that consolidates signal-cli (Java) and whatsmeow (Go) into one local REST API on port 8769, so AI agents route all messaging through a single owned session instead of fighting over companion states. Health checks, send/read endpoints, append-only JSONL inbound log, sandboxed public-user vs authorised-user routing.

Stack: Tauri (Rust + TypeScript) · signal-cli · whatsmeow (Go) · REST API

Voice Terminal qalarc.com/projects/voice-terminal

Voice-controlled terminal interface for AI coding workflows

Speech-to-action layer for terminal-driven AI coding: spoken commands routed through Whisper into shell + agent invocations, including speaker-recognition for multi-user environments.

Stack: Python · Whisper · Speaker recognition · Linux

GLM-4.7-Flash — Edge LLM Deployment qalarc.com/projects/glm-edge

30B-param MoE LLM running 100% on an AMD iGPU — 38 tok/s, zero cloud

Deployed Z.ai's GLM-4.7-Flash (30B-A3B Mixture-of-Experts, Q4_K_M, ~19 GB) entirely on an AMD Radeon 8060S iGPU via ROCm 7.2. The default 198K-context model OOM'd (KV cache alone needed ~53 GiB vs 32 GiB VRAM); solved by engineering a custom 32K-context variant that brings total memory to ~28 GiB for 100% GPU execution with zero CPU offload. Integrated as the offline fallback for local coding agents.

Stack: Ollama · ROCm 7.2 · PyTorch · GLM-4.7-Flash (MoE) · Model quantisation

RFAI — RF Intelligence Platform qalarc.com/projects/rfai-monitor

SDR (HackRF / Airspy / RTL-SDR) → real-time demod → GPU Whisper STT → searchable archive — fully local

Multi-layer software-defined-radio intelligence stack: captures RF across UHF/VHF/HF/marine/aviation bands, demodulates in real time (WFM/NFM/AM/SSB), transcribes voice traffic with faster-whisper on AMD ROCm, extracts entities (callsigns, locations) and archives everything into a searchable SQLite/FTS5 database. The DSP core was extracted into a standalone library (rfai-dsp) with anti-alias decimation, phase-continuous VFO mixing and an abstract SDR backend.

Stack: Python · PyQt5 · HackRF / Airspy / RTL-SDR (SoapySDR) · DSP (rfai-dsp) · faster-whisper + ROCm · SQLite/FTS5

Smart Glasses Face Tracker qalarc.com/projects/smart-glasses-face-tracker · live demo

Wearable ISR: glasses → home computer (face recognition) → phone — custom ONNX demographic models

Real-time computer-vision pipeline for smart-glasses use cases: MediaPipe Face Mesh (468 landmarks), ArcFace recognition, multi-face tracking at 30fps with a persistent identity library — all in-browser. Ships custom-trained 'Folkus' demographic models (2.3 MB INT8 ONNX, running via ONNX Runtime Web) that beat commercial APIs: gender 92.1%, age 5.37y MAE, ethnicity 72.2% across 7 groups. Camera glasses stream to a host computer that recognises faces and feeds AI context back via phone.

Stack: JavaScript · MediaPipe · ArcFace · ONNX Runtime Web · Custom ONNX models · WebGL

Education

University of Technology Sydney

Master of Intellectual Property and Patent Law · In Progress

University of New South Wales

Bachelor of Science (Honours), Neuroscience & Pharmacology · First Class Honours

Generation Australia

Data Analytics Graduate Program

Key Competencies

CLI Development Bun, Node, Deno, Python — terminal-first developer tooling and agent dashboards
AI Coding Maintainer of QalCode (OpenCode fork with Anthropic OAuth + non-AVX CPU support)
Terminal UX gmux — gesture-aware multiplexer, pinch-to-click overlay, themable agent dashboard
Cross-Platform Linux / Termux / Android, accessibility-focused CPU support, mobile-first developer tools
Reverse Engineering Binary inspection, protocol analysis, OAuth flow reconstruction
Communication Developer advocacy, technical writing, cross-functional collaboration