Pieter DuPlessis

Overview

Based in Johannesburg. I lead real-time systems at Interswitch. Grew the real-time team from 6 to 13 engineers. Reduced cloud spend on real-time by 31% in two quarters. Chess on lunch breaks.

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Experience

1. Senior Engineering Manager

   Oct 2024 - Present
   Interswitch · 2 yr · Full-time · Johannesburg, South Africa
   • Brought on-call pages for real-time down from 27 a week to 2.
   • Reduced cloud spend on real-time by 38% in two quarters.
   • Led the migration of 45 services to Go.
2. Senior Software Engineer

   Jul 2021 - Oct 2024
   FirstRand · 3 yr 3 mo · Contract · Johannesburg, South Africa
   • Built the experimentation framework 9 product teams use to ship changes safely.
3. Senior Software Engineer

   Feb 2019 - Jul 2021
   McKinsey & Company · 2 yr 5 mo · Full-time · Johannesburg, South Africa
   • Moved 75% of real-time traffic off a legacy monolith without a customer-facing incident.
4. Senior Software Engineer

   Dec 2017 - Feb 2019
   GTBank · 1 yr 2 mo · Full-time · Johannesburg, South Africa
   • Cut p99 latency on the real-time services from 522ms to 156ms.
5. Software Engineer

   Mar 2014 - Sep 2017
   Flutterwave · 3 yr 6 mo · Full-time · Johannesburg, South Africa
   • Brought on-call pages for real-time down from 19 a week to 1.

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Education

1. Lagos Business School

   MBA, Business Administration
   2008 - 2010
2. University of Nairobi

   BSc, Mathematics
   2004 - 2008