Jeff Hall — Engineering Executive & Platform Builder

01 — About

I build platforms that give humans leverage.

Over 25 years building software teams and data-driven products, I've focused on one thing: turning emerging technology into operational leverage. From co-founding Air2Data — a Wi-Fi hospitality platform deployed across 250+ hotels — to leading 100+ engineers in Beijing, I've scaled teams and products across every phase of company growth.

At WeLink, I replaced HubSpot with a custom Campaign Manager that saved $144K per year, built with a team of two. Today, as founder of jeffe.ai, I'm building a multi-tenant AI workforce platform that provisions autonomous AI agents with real AWS tool access — giving organizations the ability to delegate complex data and infrastructure work to AI.

I believe the best engineering leaders know when to build and when to buy, always measure success by business impact — not lines of code — and build cultures where teams can move fast without breaking things that matter.

Outcomes over output

Engineering exists to create business value. Velocity without direction is just noise.

Systems that scale humans

The best technology doesn't replace people — it multiplies what they can accomplish.

Move fast with guardrails

Speed is a competitive advantage. So is trust. Great architecture delivers both.

02 — Selected Work

Platforms built, problems solved.

01 / 03

jeffe.ai

AI Workforce Platform · 2023–Present

Multi-tenant SaaS platform that provisions autonomous AI agents with real AWS tool access. Organizations deploy supervisor and specialist agents that can run scripts, query databases, manage infrastructure, and orchestrate multi-step workflows — all within a tenant-isolated security boundary. Built solo as founder and principal engineer.

Next.js 15AWS AmplifyAmazon BedrockDynamoDBLambdaCloudFormationTypeScript

Multi

Tenant SaaS

AWS

Native architecture

Solo

Founder + engineer

02 / 03

WeLink — Enterprise Data Platform

Sr. Director of Data Engineering · 2022–Present

Architected and led the build of WeLink's enterprise data platform — a unified, AI-augmented data foundation that powers the company's strategy of replacing four major SaaS vendors with internally built platforms: Salesforce, HubSpot, Twilio, and NICE xOne.

The platform ingests and unifies customer data across every touchpoint, driving AI-powered segmentation, predictive modeling, and automated workflows that would otherwise require expensive third-party tooling. By owning the data layer — built on Apache Spark, Databricks, and AWS — WeLink gained the architectural leverage to build CRM, campaign automation, communications orchestration, and contact center intelligence in-house, tailored precisely to the business rather than constrained by vendor roadmaps or seat-based pricing.

The HubSpot replacement alone — a full campaign automation suite built with a team of two — saves $144K per year and reached 100% internal adoption within 90 days. AWS infrastructure optimization delivered an additional 25% reduction in cloud spend.

Apache SparkDatabricksPythonAWSAI/MLCDP ArchitectureCRMCampaign AutomationTwilio ReplacementContact CenterFinOps

Enterprise vendors replaced

$144K

Annual savings (HubSpot alone)

25%

AWS cost reduction

03 / 03

Air2Data

Co-founder · Wi-Fi Hospitality Platform

Co-founded and built a Wi-Fi hospitality platform from 0 to 250+ hotel deployments. Architected the core product, managed customer acquisition, and led the engineering team through scale. Filed a patent for mobile wireless network access technology that underpinned the platform's unique capabilities.

Co-founderPlatform Architecture0→1 BuildPatent FiledHospitality Tech

250+

Hotel deployments

Patent filed

03 — Career

25 years of building.

2023–Now

Founder & Principal Engineer

jeffe.ai

Building a multi-tenant AI workforce platform on AWS. Sole engineer and founder. Responsible for architecture, backend, frontend, infrastructure, and go-to-market.

2022–Now

Sr. Director, Data Engineering, DS/ML & AI

WeLink · Lehi, UT

Architecting WeLink's enterprise data platform strategy — designing the unified, AI-augmented data layer that powers internal replacements for Salesforce, HubSpot, Twilio, and NICE xOne. Built on Apache Spark, Databricks, and AWS, the platform enables AI-driven customer segmentation, predictive modeling, campaign automation, communications orchestration, and contact center intelligence — all owned and operated in-house. Delivered $144K/yr in savings on the HubSpot replacement alone, achieved 25% reduction in AWS infrastructure spend, and eliminated dependency on four major enterprise SaaS vendors.

Prior

VP / Director, Data Science & ML

Snap One

Built and led Data Science and Machine Learning programs for smart home technology company.

Prior

Data Science Program Leadership

Symantec / Convirza

Built and scaled data science programs across enterprise security and marketing analytics verticals.

~11 yrs

Engineering Director, R&D (China) + Senior IC Roles

LANDesk Software

11-year tenure culminating in leading 100+ engineers in Beijing R&D center. Filed an OS driver deployment patent. Grew from individual contributor to executive engineering leadership.

Founded

Co-Founder

Air2Data

Co-founded Wi-Fi hospitality platform. 250+ hotel deployments. Filed mobile wireless network access patent. Led product, engineering, and growth from 0→1.

04 — Expertise

Where I create the most value.

⚡

AI & ML Platform Architecture

LLM orchestration (Bedrock, Claude)

Autonomous agent design

Multi-agent workflows

RAG & memory architecture

AI product from 0→1

🏗️

Data Engineering & Infrastructure

AWS data architecture

Apache Spark / Databricks

Data pipeline design

Cost optimization (-25% at WeLink)

Real-time + batch processing

🎯

Engineering Leadership

100+ engineers led (Beijing R&D)

Team building from 0→scale

VP / C-suite experience

Cross-cultural leadership

Hiring & org design

☁️

AWS Cloud Architecture

Multi-tenant SaaS on AWS

IAM & security design

CloudFormation / Amplify

Lambda, DynamoDB, Bedrock

Cost governance & FinOps

🚀

Product & Platform Strategy

SaaS product development

Build vs. buy decisions

GTM & pricing strategy

AWS Marketplace experience

Founding-to-scale arc

📊

Data Science & Analytics

ML program leadership

Python · SQL · Spark

Predictive modeling

Marketing analytics

Enterprise security analytics

Jeff
Hall.

I build platforms that give humans leverage.

Platforms built, problems solved.

25 years of building.

Where I create the most value.

Let's talk.

JeffHall.

I build platforms that give humans leverage.

Platforms built, problems solved.

25 years of building.

Where I create the most value.

Let's talk.

Jeff
Hall.