Senior Software Engineer | Digital Health | AI & Scalable Systems

I design and build production-grade software systems across healthcare, AI, and enterprise platforms. My work focuses on scalable architectures, data-intensive applications, and secure system design, particularly in digital health and EMR systems.

📫 Open to senior engineering roles, technical consulting, and collaboration — reach me on LinkedIn or open an issue on any repo.

• 🔭 Building AI-powered health systems including diagnostic and risk assessment tools
• 🧠 Applying Machine Learning & Computer Vision to disease detection (mpox, imaging workflows)
• 🏥 Developing EMR / HMS platforms with offline-first architecture and NDPR-compliant data security
• ⚙️ Designing distributed systems, APIs, and cloud-native infrastructure

• Fullstack Engineering: Frontend, backend, and system design
• Cloud & DevOps: CI/CD, containerisation, infrastructure automation
• Digital Health Expertise: EMR systems, interoperability, health data pipelines
• AI Systems: Model training, inference pipelines, and real-world deployment
• Performance & Scalability: Optimised systems for high-load environments

Languages TypeScript JavaScript Python Go PHP SQL Bash

Frontend React Svelte SvelteKit Vue Angular Redux TailwindCSS Bootstrap Sass HTML5 CSS3 HTMX Alpine.js

Backend & APIs Node.js Express NestJS Django Flask FastAPI Laravel CodeIgniter REST GraphQL

Databases & Caching PostgreSQL MySQL MariaDB MongoDB Redis SQLite

Cloud, DevOps & Infra Docker AWS GCP Nginx Linux Jenkins

Messaging & Systems Kafka RabbitMQ

Mobile & Cross-Platform Cordova NativeScript Electron

AI / Data ONNX Runtime InsightFace OpenCV CLIP Machine Learning, Computer Vision, Inference Pipelines

Tools & Platforms Git Postman Figma Firebase Heroku Appwrite Bun PM2 Netlify

Fully offline, self-hosted media gallery with state-of-the-art face recognition and clustering — Google Photos–style people organization with no cloud, no telemetry, and no data leaving your machine.

• Local inference via ONNX Runtime: InsightFace buffalo_l (SCRFD detector + ArcFace ResNet-50, 512-d embeddings) with CPU/GPU auto-selection
• Multi-algorithm face clustering — agglomerative, DBSCAN, Chinese Whispers, HDBSCAN — plus multi-exemplar identity matching and intra-video face merge
• CLIP visual embeddings for similarity search and automatic tag suggestions
• FastAPI + HTMX/Alpine.js gallery over SQLite, with a WebP thumbnail cache and FFmpeg video keyframe sampling
• github.com/RussellJapheth/kimera · AGPL-3.0 · 87 tests passing

A modern, offline-first spaced repetition flashcards app for learning languages, built with Svelte 5.

• SM-2-inspired scheduler with per-deck review queues and due-date spread (src/lib/utils/srs.ts)
• Offline-first: study data persists in the browser (IndexedDB) with a service worker and debounced background sync to a small JSON API
• Chinese learning focus: HSK-aligned decks, pinyin, tones, tone-sandhi detection, and cloze (sentence-fill) practice with multiple accepted answers
• Speech practice via the Web Speech API with accuracy evaluation, plus arcade games (Match Blitz, Number Rush) with combo scoring
• Progress system: XP, levels, streaks (with streak freezes), milestones, and weekly/monthly leaderboards
• SvelteKit + TypeScript + Tailwind CSS v4, deployed on Netlify · AGPL-3.0

A self-hosted, cross-device text and file sharing app inspired by Microsoft Edge Drop — single-user, minimal, and secure.

• Real-time sync over native WebSockets with a chat-style timeline, sticky day grouping, and lazy loading
• Text/link sharing, drag-and-drop multi-file uploads, clipboard paste, and EXIF-aware thumbnails via sharp
• Password auth with Argon2id + HTTP-only cookies; SQLite through Drizzle ORM (local or Turso) and local/S3-compatible storage
• SvelteKit + Tailwind CSS, PWA-installable · MIT

A simple, elegant Pomodoro-style work timer and todo list.

• Customizable interval timer paired with a persistent task list
• Fully client-side — tasks and settings stay in localStorage, no account required
• SvelteKit + Tailwind CSS + Bun, deployable to Netlify or any SvelteKit adapter · GLWTPL

AI-powered web platform for mpox risk assessment using image classification.

• Computer vision model for symptom detection
• Real-time inference pipeline
• Healthcare-focused risk scoring system
• Designed for scalability and field usability

A few other public repos:

• Rcopy — curl-based remote file copy with a CLI, real-time progress, and resumable downloads
• CheckIN — a streak calendar built with SvelteKit
• my-minimal-finance — privacy-focused personal finance tracker, fully in-browser (IndexedDB)
• codeigniter4-db-explorer — interactive terminal database explorer/editor for CodeIgniter 4

• Software Engineering
• Full Stack Development
• System Architecture
• Cloud Computing
• DevOps Engineering
• Machine Learning
• Computer Vision
• Digital Health
• Electronic Medical Records (EMR)
• Health Information Systems (HIS)
• API Design & Integration
• Distributed Systems
• Data Engineering
• Secure Systems (NDPR Compliance)

• 💬 Open to discussions on software engineering, AI, and system design
• 🧩 Strong focus on real-world problem solving and production systems
• 🛠️ Building open-source, offline-first AI tools (see Kimera)
• ⚙️ Preference: spaces over tabs