Renan Duarte

Hello, I'm Renan Duarte

CTO & Technology Enthusiast

Building products and teams since 2002

01. About Me

A technical CTO passionate about Software, Hardware, and Technology, with a focus on building companies and teams. Based in Berlin, Germany 🇩🇪

I've had a deep and long-standing passion for technology, whether it's assembling computers 🪛, writing scripts, developing automation, from basic to advanced, or architecting large, complex cloud systems.

Around the age of 10, I took my first computer assembly course, which quickly led me to explore and pursue programming courses (HTML, CSS, VB, ASP, Macromedia Flash, etc). My professional journey began at the age of 15 when I developed my first e-commerce platform. That early exposure ignited a lifelong passion for technology. 🤓

After nearly 6 years at a major investment bank working on trading robots and low-latency platforms, I relocated to Germany in 2018 to co-found AiSight GmbH. As CTO, I helped scale AiSight into a mid-sized company (100+ employees), acquired by Sensirion AG 🇨🇭 in 2021 and fully integrated by 2024. 🚀

20+ Years Experience
40+ Countries Visited
2 Successful Exits
100+ Team Size Built

During the last 20 years I've lived in São Paulo 🇧🇷, Mexico City 🇲🇽, Jaipur-Delhi 🇮🇳, Zürich 🇨🇭, London 🇬🇧, Shenzhen 🇨🇳, Santiago-Pucón 🇨🇱, Hamburg 🇩🇪, and Berlin 🇩🇪. I spent weeks traveling with my family in a motorhome through Denmark 🇩🇰, Sweden 🇸🇪, Norway 🇳🇴, Belgium 🇧🇪, and Germany 🇩🇪.

02. Experience

Director of Engineering

— Present

Building a unified flight REST API from scratch (search, booking, ancillaries, payments, ticketing and post-booking) that abstracts NDC/EDIFACT/LCC/aggregator complexity behind a single, simple interface. It integrates top global providers (Sabre, Travelport, Travelfusion, Amadeus, Etraveli Group (ETG), Atlas/Atriptech, etc.) and handles hundreds of thousands of provider requests a day.

Angel Investor

— Present

Berlin-based early-stage investor for hard-tech and deep-tech startups working on sustainability across climate, IoT and human health.

  • Angel Investing
  • Deep Tech
  • Sustainability

—

Co-founded AiSight and grew the team to 100+ employees. Built plug-and-play hardware and software solutions using vibration, magnetic field, and temperature sensors combined with AI to predict and prevent machine failures.

  • ISO 27001 & ISO 9001 Certified
  • Led R&D team across hardware, cloud, software, and data science
  • IoT
  • Machine Learning
  • Predictive Maintenance
  • Hardware

—

Supported Let's Code as it evolved from a B2C EdTech startup into ADA, a B2B platform focused on closing Brazil's technology skills gap. Helped the team mature its engineering practices, moving from manual operations to automated infrastructure, continuous delivery, and comprehensive testing.

  • EdTech
  • B2B
  • DevOps
  • Cloud Architecture

—

Advisor during the initial founding discussions (2014/2015). Later joined as Data Engineer Architect (2018–2019), designing and architecting the multi-bank data integration and processing landscape for this AI-powered financial assistant application. Olivia was later acquired by Nubank in 2021.

  • FinTech
  • Data Engineering
  • AI

—

Joined Latin America's largest investment bank in 2012 as a systems analyst (IT/DevOps) and moved to the Treasury Desk, in the FX and Fixed Income teams, as Associate Director in 2014. Developed highly critical low-latency trading robots and algorithms. Researched genetic algorithms for dynamic yield curve generation and forecasting.

  • Top 50 “Excellent Employees” (out of 3,000) — awarded in 2013 and 2014
  • Trading Systems
  • Low Latency
  • Algorithmic Trading
  • FX/Fixed Income

03. Publications

05. Get In Touch

I'm curious and always open to new ideas, cultures, and experiences. Whether you want to discuss technology, startups, investments, or just say hello — feel free to reach out!

Say Hello