Amber Norris

Overview

I've spent 18 years on payments infrastructure - first at Fidelity Investments, now at Tidal Care. Took payment success rates from 91.2% to 97.2%. Most at home with idempotency and distributed systems. Coffee nerd.

Usually replies within a day

Experience

1. Senior Engineering Manager

   Sep 2022 - Present
   Tidal Care · 4 yr 1 mo · Full-time · Pittsburgh, PA
   • Took payment success rates from 94.5% to 96.4%.
   • Brought on-call pages for payments platform down from 22 a week to 1.
   • Cut p99 latency on the payments platform services from 785ms to 77ms.
2. Backend Engineer

   Apr 2019 - Sep 2022
   Shopify · 3 yr 5 mo · Full-time · Pittsburgh, PA
   • Brought on-call pages for payments platform down from 21 a week to 1.
   • Cut p99 latency on the payments platform services from 484ms to 136ms.
3. Staff Backend Engineer

   Sep 2015 - Apr 2019
   Wayfair · 3 yr 7 mo · Full-time · Pittsburgh, PA
   • Wrote the PostgreSQL service that now handles 55 million requests a day.
4. Backend Engineer

   Nov 2012 - Sep 2015
   Deloitte · 2 yr 10 mo · Full-time · Pittsburgh, PA
   • Reduced cloud spend on payments platform by 43% in two quarters.
   • Designed the reconciliation system that matches 6 million transactions a day.
5. Backend Engineer

   Jul 2009 - Jul 2012
   Fidelity Investments · 3 yr · Full-time · Pittsburgh, PA
   • Designed the reconciliation system that matches 1 million transactions a day.
   • Shipped a rewrite that took build times from 25 minutes to under 4.

No references yet.

Education

1. UC San Diego

   BS, Computer Science
   2003 - 2007