Pedro Contreras

Overview

I've spent 9 years on payments infrastructure - first at Deloitte, now at Valemont Group. Took payment success rates from 94.5% to 98.5%. Shipped a rewrite that took build times from 23 minutes to under 3. Before that: Cencosud and Google. Volunteer coding coach for school students.

Slower in the last week of each quarter

Experience

1. Senior Backend Engineer

   Jan 2024 - Present
   Valemont Group · 2 yr 9 mo · Full-time · Mexico City, Mexico
   • Reduced cloud spend on payments platform by 27% in two quarters.
   • Designed the reconciliation system that matches 2 million transactions a day.
2. Backend Engineer

   Nov 2021 - Jan 2024
   Cencosud · 2 yr 2 mo · Full-time · Mexico City, Mexico
   • Reduced cloud spend on payments platform by 43% in two quarters.
   • Moved 77% of payments platform traffic off a legacy monolith without a customer-facing incident.
3. Backend Engineer

   May 2019 - Jul 2021
   Google · 2 yr 2 mo · Full-time · Mexico City, Mexico
   • Cut p99 latency on the payments platform services from 332ms to 104ms.
4. Backend Engineer

   Oct 2017 - May 2019
   Deloitte · 1 yr 7 mo · Full-time · Mexico City, Mexico
   • Cut p99 latency on the payments platform services from 484ms to 90ms.

Projects

No references yet.

Education

1. Universidad de Chile

   Ingeniería, Information Technology
   2013 - 2017