Systems Manager · Technical leadership · 20+ years in IT

I lead the teams and systems that keep large-scale operations running.

I'm William Cleisson de Carvalho, Systems Manager at Ânima Educação, one of Brazil's largest higher-education groups. I started as a developer and moved through systems analysis, data science and tech lead roles into management. Today I bring together business vision, architecture and delivery to modernize critical systems without stopping operations.

Available for development projects as an independent contractor

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William Cleisson de CarvalhoTech Lead · Pouso Alegre, Brazil

20⁺years in IT, from code to management

5postgraduate degrees and an MBA in management, data and business

Instructorof technical trainings, workshops and talks

// what I deliver as a leader

Technical leadership, grounded in code.

Over more than 20 years, I have built systems for nearly every area of a company: finance, accounting, HR, procurement, marketing and administration. I know the business from the inside because I have automated each of those routines. I turn strategy into code and code into results, speaking the language of both the engineering team and every business area.

Squad leadership

I lead development squads: technical decisions, backlog prioritization, team coordination and talent development.

Full product lifecycle

I build new products, maintain and evolve modern applications and, when needed, lead the modernization of legacy systems without stopping operations.

Architecture and integrations

Designing microservice and API-based architectures and integrating internal systems, ERPs and third-party platforms.

Quality and technical debt

Reducing technical debt, continuous integration and delivery, test automation and practices that lower long-term risk.

Data-driven decisions

Hands-on experience as a data scientist: pipelines, analytical models and dashboards that turn system data into decisions.

AI in the development cycle

I use generative AI daily in development and management, with coding agents such as Claude Code and Codex, to speed up delivery, review code and write documentation.

// journey

A professional built on purpose.

Every step of my education came from a real need at work. Together, they form a rare profile: a solid technical foundation combined with business, data and product thinking.

01
The technical foundation
IT Technician diplomaBachelor's in Information Systems
I started working in IT before I turned 16. The technical course turned a calling into a profession, and my degree built the foundation for a career in the field.
02
Engineering and technical management
Postgrad in Agile Web and Mobile DevelopmentPostgrad in Strategic IT Management
I deepened my software engineering skills and began preparing to lead teams and technical decisions, seeing IT as part of the company's strategy.
03
Business, market and conversion
MBA in Digital Marketing15 marketing certifications
I wanted to speak the language of business teams and see the product's end result: buying experience, lead generation, SEO, paid traffic and conversion. I started building systems with both sellers and buyers in mind.
04
Data-driven decisions
Postgrad in Data Science and Big DataData Scientist at IFSULDEMINAS
The more results I delivered, the more I wanted them to be predictable. I moved into data science and applied it in practice to turn data into decisions instead of guesses.
05
Product and strategy
Postgrad in Startups and Future ManagementHSM University
By then I was no longer just "the IT guy": I was a technologist who understands business. I closed the loop with management, innovation and digital products, the areas that drive me.

The result: I think about a digital product end to end.

Not to do everything myself, but to speak as an equal with every area, build the right team and know whether each part is truly delivering.

Buildthe product, from back end to app.

Runthe infrastructure that keeps it all online.

Sellwith marketing, funnels and conversion.

Measureby connecting data and systems to decide.

Leadengineering teams and engage the business.

// experience

Professional experience.

More than 20 years of career, often with several fronts running in parallel.

200420062008201020122014201620182020202220242026today

Freelance projectsOn-demand developer, as a freelancer and independent contractor2006 — present

Ânima EducaçãoSenior Analyst → Systems Manager2022 — present

Fundação de Ensino Superior do Vale do SapucaíTechnology Consultant · Full Stack (contractor)2022 — 2025

W2C Tecnologia e MarketingOwner2022 — 2025

IFSULDEMINASData Scientist2020 — 2021

Faculdade de Direito do Sul de MinasIntern → Technician → Systems Analyst2006 — 2022

TeraByte TecnologiaCo-owner2012 — 2014

Pouso Alegre City HallPHP Developer2011 — 2012

MicrolinsComputer Lab Instructor2004 — 2005

Freelance projects

Need someone to build it?

Alongside my leadership career, I take on development projects as an independent contractor, with scope, timeline and price agreed before we start. You work directly with me, from quote to delivery.