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PZPedro Zimmermann
CasesHow I workAboutContact
Pedro Vitor ZimmermannAI Tech Lead · former telecom CTO · co-creator of TalkToMe

AI agents that absorb your repetitive customer support.

On WhatsApp and connected to your CRM and ERP, they triage, handle billing and work orders, and hand off to a human with the full history. For internet providers and service companies with heavy support volume.

70→5
people in support
−90%
operating cost
Explorernet, a telecom with nearly 100k subscribers · as CTO, 2019–2025
Talk on WhatsApp
  • Led 70+ people and 12 engineers
  • Salesforce: 3 years in production
  • Brasília, Brazil · remote
Pedro Vitor ZimmermannFIG.01Pedro V. Zimmermann
01 — Cases

What I built and what changed

At Explorernet, a telecom with nearly 100k subscribers, where I was CTO and managing partner from 2019 to 2025.

TalkToMe · co-creation, architecture and delivery

Customer support run by AI agents

Problem

Expensive, reactive support that depended on 70 people.

What I built

I co-created TalkToMe and put AI agents on the official WhatsApp channel, connected to the CRM. They triage, resolve and escalate to a human with the full history. Billing, work orders and omnichannel were wired to the agents.

Measured result

Support team from 70 people to 5Operating cost cut by more than 90%
WhatsApp APILLMsRAGSalesforcePythonKubernetes
Technical leadership

Salesforce as the backbone of operations

Problem

An ERP that needed manual work and parallel spreadsheets.

What I built

I rolled out Salesforce from scratch, replaced spreadsheets with a direct ERP integration and connected billing, work orders and WhatsApp to the AI pipeline.

Measured result

Rolled out from scratch and run in production for 3 years
SalesforceApexMakeN8NSQL
Strategy and technology

Network diagnostics by geolocation

Problem

Failures were only found after customers complained.

What I built

Real-time monitoring that cross-references network events with their location.

Measured result

Fault diagnosis from 3 days to 10 minutes
SQLPowerBILookerPythonDocker
02 — How I work

Agents in production,
not prototypes.

Short scope, in writing

We agree on what the agent will solve and how you will approve it. The first version runs on mock data, and dependencies (Meta approval, ERP access) are explicit from day one.

Tests on the real channel before go-live

An end-to-end test suite checks handoffs between agents, tool order and leaks of internal content. Latest recorded run: 6 of 6 critical scenarios at two providers (Jun 2026).

Cost of every conversation, measured

Measured example: R$ 0.018 (Brazilian reais) for a conversation with an agent handoff (Jun 2026). I compare models side by side: in an Apr 2026 case, the smaller model was 4× cheaper per session with no loss in quality (15 scenarios × 4 models).

Human in the loop

Queue, supervision and history in one panel. The agent hands off to your team when it needs to.

You only pay after you approve: I build the agreed scope, you test it working, then you decide.

03 — About

From network cables to CTO

I joined Explorernet in 2009 as a maintenance technician, swapping hardware and pulling network cable. I came back in 2019 as CTO and managing partner and stayed until 2025, leading more than 70 people, including a team of 12 engineers.

Today I deploy customer-support agents on TalkToMe for other companies, including internet providers.

Stack: Python · TypeScript · OpenAI · Anthropic/Claude · Gemini · Supabase (pgvector) · Docker · Kubernetes · Salesforce

2019–2025
CTO & Managing PartnerExplorernet70+ people, 12 engineers · TalkToMe · Salesforce
2014–2019
IT TechnicianHospital Sarah KubitschekCritical departments · automation with PowerShell and Go · −30% IT tickets
2009–2012
Maintenance TechnicianExplorernetHardware, software and networks

Let's look at your customer support

Send me one WhatsApp message with: what your company does, what you want AI to solve, how many conversations you get per month and which systems it would need to access.

Talk on WhatsApp(62) 99459-7808

Hiring an AI Tech Lead or Tech Lead? Reach me by email or LinkedIn. I work 100% remote or in Brasília, Brazil.

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All rights reserved. Created by Pedro Vitor Zimmermann - 2026