Zachary Proser

Building AI Systems That Ship Fast and Scale Safely

Proven traction: 50,000+ readers • 4,000+ engineers trained • 13+ years shipping production systems • Founder of Gabbee (AI sales calling platform with live users)

I design applied AI with reliability, safety, and user trust in mind—balancing fast iteration with responsible deployment.
4,000+
Newsletter Subscribers
13+
Years Experience
6
Tech Companies
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Yearly Blog Readers
0
Newsletter Subscribers
0
AI Infrastructure Experience
0
Total Engineering Experience
Premier Project

Gabbee.io — AI BDR & Lead Qualifier

Founded and built an AI calling platform that initially served multiple use cases. By analyzing 40+ user call transcripts with LLM assistance, I discovered most customers were using Gabbee for BDR lead qualification. Pivoted positioning, landing pages, and CRM integration accordingly. The system now successfully completes ~85% of qualification calls and syncs results automatically to Zoho CRM.

  • Market research, ICP definition, and messaging
  • Product design, UX flows, and iteration for conversion
  • Full-stack implementation with telephony and voice AI
  • Deployment, analytics, monitoring, and on-call maintenance
Gabbee.io Hero

Gabbee connects to Zoho CRM via OAuth, auto-syncs your leads, helps you configure world-class sales qualification campaigns in minutes, and then programmatically qualifies your leads for you.

Featured AI Projects

Real-world implementations showcasing advanced AI techniques, from neural networks and fine-tuning to production RAG systems and enterprise infrastructure.

Gabbee.io – AI BDR & Lead Qualifier
Premier Project

Gabbee.io – AI BDR & Lead Qualifier

A fully self-built product: market research, UX, full-stack app, telephony/voice AI integration, deployment, analytics, and ongoing maintenance. Connects to Zoho CRM via OAuth, auto-syncs leads, configures qualification campaigns in minutes, and programmatically qualifies leads.

Technologies Used

Next.jsTypeScriptTailwind CSSBland AIVercelWorkOS Auth
Impact: Completed ~85% of qualification calls • Dozens of active demo users • Clear PMF pivot based on transcript analysis
Llama 3.1 Fine-tuning with Torchtune

Llama 3.1 Fine-tuning with Torchtune

Complete production workflow for fine-tuning Llama 3.1-8B-Instruct using Lightning.ai, LoRA, and Weights & Biases integration.

Technologies Used

PythonTorchtuneLightning.aiLoRAQLoRAW&B
RAG Pipeline with LangChain & Pinecone

RAG Pipeline with LangChain & Pinecone

Production-ready Retrieval Augmented Generation system with custom embeddings, vector search, and conversational memory.

Technologies Used

TypeScriptLangChainPineconeOpenAINext.jsRAG
Impact: 4,000+ developers trained • Dozens of paid tutorial purchases

Showing 1-3 of 19 projects

Professional Experience

A track record of delivering scalable AI infrastructure and developer tools at top-tier companies

WorkOS logo

Developer Experience Engineer

WorkOS

2025–Present

Remote

Building developer experience across SDKs, templates, and AI integrations. Focused on AuthKit-secured MCP servers, high-quality examples, docs, and pragmatic developer tooling that accelerates adoption and success.

WorkOS logo

Developer Education

WorkOS

2024–2025

Remote

Built internal RAG pipelines and chatbots, shipped public-facing MCP servers secured with AuthKit, created starter kits, led developer tooling research, and taught internal AI workshops on neural networks, embeddings, semantic search, RAG, hallucinations, and how to learn and create content with AI.

Pinecone logo

Senior Software Engineer

Pinecone

2023–2024

Shipped production vector database features, drove AI/ML developer adoption, and authored content reaching tens of thousands.

Gruntwork logo

Senior Software Engineer

Gruntwork

2021–2023

Delivered cloud infrastructure automation, open-sourced tooling, and deep technical guides used across industry.

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Software Engineer

Cloudflare

2019–2021

San Francisco Bay Area

Developed distributed systems at scale, improved developer platform usability, and contributed to widely used docs.

Cloudmark logo

Software Engineer

Cloudmark

2015–2017

San Francisco Bay Area

Built cross-team systems across a mixed stack; shipped Golang services, Salesforce‑integrated auth, data visualizations, and Dockerized build pipelines.

BrightContext Corporation logo

Software Engineer

BrightContext Corporation

2012–2014

Falls Church, VA

Employee #9 at real‑time stream‑processing startup; delivered Node.js SDK demos, automated testing, release QA, and developer documentation.

Mind on Fire logo

Independent

Mind on Fire

Ongoing

Remote

Advised startups on AI integration, growth engineering, and developer content.

Technical Expertise

I’m a rare combination of AI theory, practical experimentation, and production implementation — truly full‑stack across research, engineering, and developer education.

I approach applied AI with a safety and reliability mindset: clear evaluation, human-in-the-loop design, and responsible deployment practices.

Software Engineering

Developer Education & Growth

Technical writing (50,000+ readers) and newsletter (4,000+ subscribers)
Public speaking and workshops (AI Engineer World’s Fair, MCP Night)
Growth engineering: landing page optimization, analytics, conversion funnels

What Clients Say

Testimonials from engineering leaders and teams I've worked with at top-tier companies.

"When I ran your software, I felt joy"
Jim Brikman
Jim Brikman
Co-founder of Gruntwork, OpenTofu and author of Terraform Up and Running
4
AI-Forward Companies
10+
Team Testimonials
100%
Client Satisfaction

Let's build applied AI that matters

If you're exploring roles in Growth Engineering, Developer Relations, or Applied AI product work, I'm ready to contribute.