Grace Matthews

S

Chief of Staff at Tandem Security · vendor management, procurement

Tandem Security
San Francisco, CA · PT (UTC-8)
5+ years experience
Columbia University
English
Co-founder
Messaging unavailable

Overview

I've spent 5 years on supply chain - first at General Motors, now at Tandem Security. Cut cost per order by 19% with routing and staffing changes. Brought support first-response time from 22 hours to under 1.

Good reasons to reach out
  • People who want to build this with me
  • Questions about supply chain
Please don't message about
  • Agency or outsourcing pitches
  • Courses and coaching offers

Replies on weekends

Skills
inventoryprocurementvendor managementS&OPsupply chain
Co-founderLooking for a co-founder
closes in 3 months

Looking for a commercial co-founder for field-service scheduling for solar installers

The idea
Field-service scheduling for solar installers
Stage
Idea
I bring
9 years in supply chain
Looking for
Product-minded engineer
Commitment
Full-time now
Location
San Francisco or remote

I bring 5 years of supply chain (currently Tandem Security). Ideally you've run operations in MENA. Incorporated, self-funded so far.

San Francisco, CA · remote OKinventorysupply chainprocurement
Open

Experience

  1. Chief of Staff
    Mar 2026 - Present
    Tandem Security · 7 mo · Contract · San Francisco, CA
    • Rebuilt the planning process the company still runs every quarter.
    • Brought support first-response time from 27 hours to under 2.
    • Launched operations in 14 cities.
  2. Operations Associate
    Jul 2022 - Mar 2026
    Pfizer · 3 yr 8 mo · Full-time · San Francisco, CA
    • Secured 4 payments licences.
  3. Operations Associate
    Oct 2021 - Jul 2022
    General Motors · 9 mo · Full-time · San Francisco, CA
    • Secured 5 payments licences.

References

No references yet.

Education

  1. Columbia University
    BA, Operations Research
    2017 - 2021

Details

Compensation expectations
What they are targeting for their next role.
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Direct contact details
Direct email and a scheduling link.
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