Mariana Laura Oliveira

Overview

18 years in software engineering, the last 2 at Ripple Learning, where I lead the public API team. Wrote the rate limiting service that now handles 37 million requests a day. Trail runner and occasional climber.

Best reached early in the week

Experience

1. CTO

   Jan 2025 - Present
   Ripple Learning · 1 yr 9 mo · Full-time · Lisbon, Portugal
   • Led the migration of 19 services to Django.
   • Built the experimentation framework 40 product teams use to ship changes safely.
   • Wrote the Django service that now handles 23 million requests a day.
2. Principal Engineer

   Nov 2021 - Jan 2025
   ASML · 3 yr 2 mo · Full-time · Lisbon, Portugal
   • Sit on 3 boards.
   • Led or co-led 29 investments, 8 of them now at Series B or later.
3. Staff Backend Engineer

   Jan 2020 - Nov 2021
   Trade Republic · 1 yr 10 mo · Full-time · Lisbon, Portugal
   • Reduced cloud spend on public API by 32% in two quarters.
   • Built the experimentation framework 6 product teams use to ship changes safely.
4. Engineering Manager

   Mar 2018 - Jan 2020
   McKinsey & Company · 1 yr 10 mo · Full-time · Lisbon, Portugal
   • Shipped a rewrite that took build times from 29 minutes to under 2.
5. Backend Engineer

   Jun 2015 - Mar 2018
   BMW Group · 2 yr 9 mo · Full-time · Lisbon, Portugal
   • Moved 62% of public API traffic off a legacy monolith without a customer-facing incident.

No references yet.

Education

1. École Polytechnique

   Ingénieur, Computer Engineering
   2004 - 2008