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Lucas Mazei

Engineering Manager · V4 Company · Indaiatuba, SP

Engineering Manager at V4 Company. Came up through the stack — data analyst, software engineer, head of tech, EM — so the teams I lead actually ship.

Portrait of Lucas Mateus Mazei Sobrinho

Who is Lucas Mazei?

I lead engineering at V4 Company, Brazil's largest digital-marketing advisory. My teams build the RevOps, finance, and post-sales tooling that hundreds of agencies across the V4 network depend on.

I started writing PowerBI reports as a data analyst, then shipped computer-vision and machine-learning systems in Python at Smart Agri, then came back to V4 to lead the tech org — Head of Tech, Director, Tech Lead, Group PM, EM. Five years, five roles. Each one taught me something the last one missed.

My toolkit leans on Theory of Constraints, the Lean Thinking Process, and the Reforge engineering-leadership playbook. I still review code, pair with devs, and ship when the team needs backup.

What does Lucas Mazei do?

  1. Jan 2026 — present

    Engineering Manager

    V4 Company · Campinas, SP

    • Lead engineering across RevOps, Finance, and Post-Sales domains.
    • Rebuilt tech rituals — biweekly System Demo + weekly executive tech review — replacing the stale WBR format.
    • Hire, coach, and mentor tech leads across the org.
  2. Aug 2025 — Jan 2026

    Group Product Manager

    V4 Company · Campinas, SP

    • Led product direction across Finance, RevOps, and Post-Sales squads.
    • Recruited and handed off domain PM responsibilities to a dedicated RevOps PM after training.
  3. Jan 2025 — Aug 2025

    Tech Lead

    V4 Company · Campinas, SP

    • Technical leadership across multiple squads during the transition from unit-scope to network-scope engineering.
  4. Mar 2023 — Jan 2025

    Diretor de Tecnologia

    V4 Company — Colli&Co. · Sinop, MT

    • Oversaw Data and Product teams across the unit.
    • Led creation and launch of Mindforge, V4's education platform.
    • Led creation and launch of FWO, V4's management and operations system.
    • Implemented Scrum in the product team; built Marketing and Sales reporting in PowerBI across multiple data sources.
  5. Apr 2021 — Mar 2023

    Head of Technology

    V4 Company — Colli&Co. · Sinop, MT

    • Managed the Data Team delivering PowerBI reports to agency clients.
    • Maintained and evolved management analytics: Churn Analysis, ICP, Forecasting, New Customers, Customer Experience.
  6. Nov 2020 — Apr 2021

    Data Analyst

    V4 Company — Colli&Co. · Sinop, MT

    • Developed PowerBI reports and ETL pipelines in PowerQuery M.
    • Presented analyses directly to clients.
  7. Jul 2018 — Nov 2020

    Software Engineer

    Smart Agri · Sinop, MT

    • Shipped Computer Vision and Machine Learning systems for agribusiness.
    • Stack: OpenCV, Flask / FastAPI, PyTorch, AWS (Lambda, EC2, ECS, ECR, S3, RDS), Pandas, NumPy.
  8. Apr 2020 — Nov 2020

    Centro-Norte Brazil Section Lead Ambassador

    IEEE Xtreme · Brazil (remote)

    • Coordinated IEEE Xtreme programming competition across the Centro-Norte Brazil section.

What does Lucas Mazei know?

Engineering leadership

  • Team design, hiring, and coaching
  • Technical strategy
  • Engineering rituals and operating cadence
  • Incident and escalation management
  • Performance conversations

Frameworks

  • Theory of Constraints (TOC)
  • Lean Thinking Process (LTP)
  • Reforge Engineering Leadership
  • Team Topologies
  • Scrum

Stack

  • TypeScript / Node / React
  • Python (FastAPI, Flask, PyTorch, OpenCV)
  • PostgreSQL
  • AWS (Lambda, EC2, ECS, ECR, S3, RDS)
  • PowerBI + PowerQuery M
  • Terraform

Education

  • Engineering Leadership — Reforge (2026)
  • CTO Mentorship — IFTL (2024)
  • B.Eng. Electrical Engineering — Universidade do Estado de Mato Grosso (UNEMAT) (2016 — 2021)

Certifications

  • Foundations of Project Management
  • Cientista do Marketing

Languages

  • Portuguese · Native
  • English · Full Professional
  • Spanish · Elementary
  • German · Elementary

Notable projects

Tech Rituals Redesign

Replaced inherited WBR cadence with biweekly System Demo + weekly executive tech review. Cut reporting overhead, improved decision speed.

Mindforge

Led creation and launch of V4's education platform for agencies and their customers.

FWO

Led creation and launch of V4's internal management and operations system.

Where does Lucas Mazei live online?