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AI Systems Engineer · Product Builder

Mako IT Lab

YouhanaSheriff.

01 — 06AI Systems Engineer · Edge AI · Voice & Vision · Agentic Systems

I build software that works beyond the demo. AI on small devices, memory for agents, and the mobile and web products that bring it all together.

Building software since 2020.WEB / MOBILE / APPLIED AI

01 / Projects

A few things I’ve built.

AI Systems05
01

pocket_ai · Mako R&D

Assistive navigation needs real-time obstacle understanding without a network connection.

YOLO11 / ONNX / Python / Computer Vision
pocket_ai · Mako R&D

Architecture

Offline camera-to-detector-to-spatial-reasoning-to-TTS pipeline with desktop and INT8 edge profiles.

Key achievement

Ongoing Mako R&D for safety devices, including YOLO-family model training; FPS figures are documented targets rather than published benchmarks.

02

models-edge-devices · Mako R&D

Safety devices need modular AI pipelines that fit constrained compute, memory and power budgets.

YOLO / LoRA / MLX / llama.cpp

Architecture

Split vision, safety validation and event-triggered small-model reasoning with LoRA, MLX, llama.cpp and quantized deployment targets.

Key achievement

Active Mako R&D across YOLO-family model training and constrained-device deployment planning.

03

SimpleMem

LLM agents forget useful context or overfill prompts with noisy history.

TypeScript / Embeddings / Vector search / Agents
SimpleMem

Architecture

Semantic memory layer with compression, embeddings and retrieval for long-running agents.

Key achievement

Independently implemented the SimpleMem paper in TypeScript and published it as @sheriax/simplemem; benchmark figures belong to the cited paper.

04

llm-rag

Documents need searchable, grounded answers instead of generic chatbot responses.

TypeScript / Bun / SQLite / MiniLM
llm-rag

Architecture

PDF ingestion, chunking, MiniLM embeddings, SQLite vector store and OpenRouter/DeepSeek answer generation.

Key achievement

Built a CLI RAG system with separate ingest and query commands.

05

Video Composer

Short-form video production has repetitive transcription, analysis and assembly steps.

OpenAI / Whisper / GPT-4 Vision / Python

Architecture

Whisper transcription, vision analysis and scripted media generation pipeline.

Key achievement

Automated core pieces of a TikTok/Reels/Shorts production workflow.

AI Products03
01

Kizu

Financial recovery requires spending context, receipt understanding and practical guidance.

Flutter / Firebase / OpenAI GPT / ML Kit OCR
Kizu

Architecture

Flutter app with Firebase, ML Kit OCR, rule-based tracking and OpenAI GPT for receipt scanning, advice, budgets, savings targets and alerts.

Key achievement

Built a production AI finance wellness app for spending tracking and financial recovery.

02

Chatiko

Users want a companion-like AI product that is simple enough for everyday use.

Flutter / OpenAI / Google AI / Firebase
Chatiko

Architecture

Mobile AI companion with OpenAI/Google AI integrations and Firebase-backed user flows.

Key achievement

Built and shipped as a personal Android product, later folded into Sheriax and now discontinued.

03

Talky

Language-learning communities need safer content and lightweight AI assistance.

Flutter / AI moderation / Firebase
Talky

Architecture

Mobile learning app with moderation workflows and Firebase product infrastructure.

Key achievement

In-development Sheriax product with Youhana as sole developer.

Platforms03
01

Drawink

Teams need local-first whiteboarding with reliable collaboration and sync.

React / TypeScript / WebSocket / Firebase
Drawink

Architecture

React canvas workspace with realtime collaboration, cloud sync and offline-first state.

Key achievement

Built a multi-board collaborative whiteboard platform.

02

Cubanin → Echify

A social-commerce platform evolved from Cubanin into Echify, adding a video-first marketplace and AI-assisted seller onboarding.

Flutter / TypeScript / LLM workflows / AWS Lambda
Cubanin → Echify

Architecture

Originally built with React Native and Next.js as Cubanin, then rewritten in Flutter for the Echify rebrand with Stripe Connect, S3 and Firebase. Echify’s AI onboarding coordinates seller drafts, structured profile layouts, image workflows and account data through TypeScript services on AWS Lambda, SNS/SQS and DynamoDB, with WebSocket updates to the app.

Key achievement

Served as Tech Lead and Lead Mobile Developer, leading the React Native-to-Flutter rewrite. Implemented AI-assisted profile generation, onboarding for existing sellers, layout history and restoration, and real-time profile updates across the backend and mobile app.

03

RouteX

Construction logistics needs offline support, GPS tracking and dispatch visibility.

React Native / Next.js / Google Maps / WebSockets
RouteX

Architecture

Offline-first mobile and web stack with maps, realtime tracking and route optimization.

Key achievement

Built logistics workflows around field reliability and realtime coordination.

02 / Current R&D

Fire Safety AI Systems

Mako R&D combining trained vision models, deterministic safety checks, compact language-model reasoning and edge-oriented deployment.

Current R&D
01

Vision Detection

Camera input · YOLO-family models · Dataset tooling · Edge inference

02

Safety Logic

Detection validation · Geometry checks · Event thresholds · Structured outputs

03

Reasoning

Compact LLM · MLX + LoRA · GGUF export · Event-triggered use

04

Safety Actions

Warnings · Guidance · Multilingual speech · System integration

Training, export and integration artifacts are verified. Published throughput figures remain engineering targets until backed by reproducible device benchmarks.

03 / Experience

Building software since 2020.

2024 - Present

Senior Software Engineer @ Mako IT Lab

  • Architect cross-platform products across React Native, Flutter, Next.js, AWS and Firebase.
  • Integrate AI features into large-scale products without losing reliability, mobile performance or product clarity.
  • Lead implementation work across data models, realtime flows, API contracts, release pipelines and frontend systems.

2023 - Present

Founder @ Sheriax Solutions

  • Own AI products from problem definition through architecture, interface design, cloud infrastructure and launch.
  • Build systems around memory, RAG, voice, vision, on-device inference and product-grade AI workflows.
  • Make product and engineering tradeoffs directly: latency, cost, privacy, hardware constraints and user experience.
Systems Toolkit & Uses

Applied AI

Agentic systems · RAG · Vector search · Prompt engineering · Tool calling

Edge AI

ONNX · YOLO · LoRA · MLX · llama.cpp

Backend

Node.js · Hono · PostgreSQL · Firebase · Docker

Frontend

React · Next.js · React Native · Flutter

Cloud

AWS · Cloudflare · CI/CD

Hardware

MacBook M4 · RDK X5 · Qualcomm QCS6490

Software

Cursor · Codex · Claude · OpenAI · VSCode · Docker

Working Style

Terminal-heavy · Local prototypes · Small-device testing · Fast iteration loops

04 / Open Source

Small tools. Shared freely.

npm

SimpleMem

Lifelong memory for LLM agents with semantic compression and vector retrieval.

Package
npm

aws-nuke-all

CLI for wiping AWS account resources across regions in disposable dev/test accounts.

Package

05 / Writing

Notes from the work.

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