Guilherme
From Brazil (UTC-3)
15 years of commercial experience
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Guilherme – Python, Typescript, AWS
Guilherme is a strategic tech leader with 15 years of experience, excelling in cross-functional leadership and team-building. As a CTO, he’s led teams ranging from 6 to 60, including building a team from scratch. While he values hands-on coding, his true strength lies in providing strong technical judgment and guiding teams through thoughtful scaling decisions.
Recently, Guilherme has been focused on studying AI, viewing it as a key opportunity to connect with the industry's future. He bridges tech and business goals, fostering transparency and ownership through clear communication and KPIs.
Main technologies
Additional skills
Ready to start
2025-05-05Direct hire
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Let’s get started today!Experience Highlights
CTO
It's a flexible car rental company in Brazil and Chile that provides free-floating access to over 1,500 vehicles across four cities.
- Pioneered the reorganization of the tech team and cultural transformation focused on quality and performance;
- Managed 30+ engineers across software, mobile, data, DevOps, and QA;
- Unified back-end architecture across countries, improving maintainability and reducing costs;
- Oversaw modernization of mobile app (Flutter) and platform back-end (Nest.js), being hands-on with the development;
- Implemented DevOps culture using Infras as Code (IaC) using Pulumi;
- Executed infrastructure migration across GCP accounts with under 5 minutes of downtime.
Builder & Full-stack Developer
It was an online market offering cost-price groceries with next-day delivery.
- Developed back-end and front-end solutions across financial, CX, logistics, and warehouse domains;
- Implemented caching and rendering strategies to improve Google Lighthouse score from 32 to 94;
- Built systems using Directus for the back end and Vue.js and Astro for the front end;
- Took end-to-end ownership of data pipelines, leveraging Airflow and Python;
- Implemented anti-fraud platform ClearSale and credit card 3DS.
CTO
It's a pioneering platform offering flexible electric vehicle subscriptions and sustainable mobility solutions in Latin America.
- Oversaw budget management, team growth, and strategic product roadmap planning;
- Led product discovery through the first year of the company until landing the vehicle subscription product;
- Remained hands-on in development while managing strategic vision;
- Implemented seamless, tech-driven electric vehicle subscription service;
- Delivered different platforms for selling used vehicles and the Electrified Vehicles Catalogue.
Head of Technology
It's a spinoff of Brazil’s largest retail pharmacy chain that offers integrated digital health services.
- Built tech team from scratch to 60+ employees;
- Launched platform used by over 30,000 RD employees within 6 months;
- Implemented a data-driven development approach and managed DevOps, QA, and Data teams;
- Led Airflow adoption for orchestrating data pipelines.
CTO & Product Officer
It's a financial collection platform specialized in prom party services and B2B support for legacy systems.
- Restructured tech team and expanded support for Java-based B2 systems and PHP legacy;
- Led transition to microservices using Python and Flask;
- Delivered features closely aligned with customer needs via an integrated product team;
- Spearheaded a comprehensive transformation of the platform, system architecture, and organizational culture;
- Directed the strategic renaming and rebranding of the company.
Education
Chief Technology Officer Program
Certificate of Excellence in Technology StrategyBusiness Administration with major in Marketing
Bachelor's degreeLanguages
Portuguese
AdvancedSpanish
AdvancedEnglish
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