// hello, world

Joseph Cohen

I build analytics infrastructure and data systems professionally, and networks, servers, and integrated smart homes because I can't help myself.

Get in touch What I do →
scroll

// 01. about

Building things that work.

I'm a computer science graduate turned analytics engineer based in New York City. I've spent over a decade building data infrastructure, measurement systems, and analytics pipelines for ecommerce brands. Connecting APIs, architecting cloud warehouses, deploying server-side tracking, and making sure the numbers people make decisions on are actually right. I've built analytics infrastructure for brands like BioIonic, WetBrush, and Ouidad and managed data systems spanning multiple platforms and channels.

But the work I get paid for is only part of the picture. I've been taking apart and rebuilding computers since I was three. Today that means designing segmented networks with enterprise-grade routing and managed switching, running containerized services on local servers, and deploying integrated residential systems, where lighting control, environmental automation, surveillance architecture, and access management all run through a unified logic layer. I currently manage over 400 connected devices across multiple properties, all designed and maintained by me.

M.S. in Finance from Baruch College (Zicklin School of Business) · B.A. in Computer Science from Hunter College.

// 02. what i do

Two worlds. Same mindset.

My career and my instincts run on parallel tracks. Both are about building reliable systems from the ground up.

📊
Analytics Engineering
I design the measurement layer: the infrastructure that captures user behavior and translates it into data teams can trust. Server-side and client-side tag management, event schemas, data validation, and attribution pipelines from click to conversion. I've deployed this end-to-end for BioIonic, WetBrush, and Ouidad.
🏗️
Data Architecture & Pipelines
I build the systems that move, transform, and surface data: async ETL pipelines, cloud warehouse design, AI-powered data categorization, automated reporting, and dashboards that drive real decisions. From raw API ingestion to executive-ready insights.
🏠
Residential Integration & Automation
Fully integrated residential systems: lighting control, environmental automation, AV distribution, surveillance, and access management. All unified through a single logic layer. Every system I build runs locally: no cloud dependency, no subscription lock-in, no single point of failure. Currently managing 400+ devices across multiple properties.
🖧
Network & Systems Architecture
Segmented networks built for security and uptime: enterprise-grade routing, managed switching, wireless coverage design, VLAN isolation, NVR-based surveillance, and containerized services on local hardware. I design for zero-trust segmentation and graceful failure, not just connectivity.

// 03. skills & tools

What I work with.

Analytics & Data Engineering
Analytics Infrastructure
Google Tag Manager Elevar (Server-Side) Google Analytics Northbeam MS Clarity Shopify Liquid
Data Platforms
BigQuery Looker / LookML Power BI Tableau Fivetran Daasity Shopify
Languages & Scripting
Python SQL JavaScript R VBA LookML
AI & Cloud
Vertex AI OpenAI API Anthropic API AWS (Lambda, S3, CloudFront)
Methodologies
Attribution Modeling A/B Testing LTV / CLV RFM Segmentation MMM Churn Prediction
Systems & Infrastructure
Network Architecture
Enterprise Routing & Switching VLAN Segmentation Firewall Policy Wireless Coverage Design DNS Infrastructure TCP/IP
Server & Compute
Linux Administration Docker / Containers Virtualization NAS & Storage Architecture Backup & Redundancy Git
Residential Integration
Lighting Control Systems Environmental Automation AV Distribution Zigbee / Z-Wave / MQTT MQTT Broker Management Local-First Architecture
Surveillance & Security
NVR System Design IP Camera Deployment Motion Detection & Alerting Access Control & Credential Mgmt
Hardware & Physical Layer
PC Building & Diagnostics Structured Cabling & Termination Rack & Patch Panel UPS & Power Management

// 04. projects

Things I've built.

Analytics & Data
Analytics Infrastructure
Multi-Brand Ecommerce Analytics Stack

Designed and deployed end-to-end analytics infrastructure for BioIonic, WetBrush, and Ouidad. Server-side tracking with Elevar, GTM containers, event schemas, and a unified Looker reporting layer connected to BigQuery.

GTMElevarBigQueryLookerShopify
Data Engineering + AI
Financial Data Pipeline & Categorization Engine

An async data pipeline that ingests transactions from multiple financial APIs, normalizes across account types (banking, credit, brokerage), and runs AI-powered categorization with confidence scoring and human review queues. Designed as a modular system that integrates with existing dashboards for real-time spend tracking and financial visibility. All data lands in BigQuery.

Banking APIs Credit APIs Brokerage APIs Async ingestion Python / AsyncIO AI categorization Confidence scoring BigQuery Warehouse Review queue Human review high low approved
PythonBigQueryOpenAI APIAsyncIOETL
E-Commerce
WovenTrends

Designed and built a full e-commerce website for a home decor manufacturer: branding, product pages, and checkout flow.

JavaScriptHTML/CSS
Systems & Infrastructure
Residential Integration
Whole-Home Automation Systems
Custom 3D floorplan dashboard with per-room control

Designing and deploying fully integrated residential systems across multiple properties: lighting control, environmental automation, surveillance, access management, and custom logic. All running locally through unified control layers with multi-protocol sensor networks. Custom 3D floorplan dashboards for per-room control and monitoring. No cloud dependency.

Local-First ArchitectureZigbee / Z-WaveContainersCustom Automations
Network Architecture
Multi-Site Network Infrastructure

Architecting and deploying segmented networks across residential and small-business environments: managed switching, VLAN isolation for IoT and surveillance subnets, granular firewall policy, and wireless coverage planning. Rack-mounted deployments with structured cabling, patch panels, and UPS-backed power management.

VLAN DesignManaged SwitchingNVR ArchitectureFirewall Policy

// 05. contact

Let's connect.

I'm always open to interesting conversations. Whether you need analytics infrastructure built right, a home that runs itself, or just want to talk about technology. No pitch required.

reachme@yocohen.com LinkedIn GitHub