Elena Mitchell

S

Co-founder & COO at Radix Energy | ex-Citi

Radix Energy
Denver, CO · MT (UTC-7)
14+ years experience
MIT
English, German
Messaging unavailable

Overview

I started Radix Energy to fix HR software for teams who were tired of the workarounds. Grew the team to 73 people across 5 countries. Raised $16 million across 2 rounds. Before that: Citi and Chewy. I play football every Sunday.

Good reasons to reach out
  • Speaking or podcast invitations
  • Questions about HR software
Please don't message about
  • Offshore staffing offers
  • Crypto token projects
  • Fundraising consultants
Skills
B2B salesSaaSHR techpayrollsales

Experience

  1. Co-founder & COO
    Dec 2024 - Present
    Radix Energy · 1 yr 10 mo · Full-time · Denver, CO
    • Grew the team to 45 people across 4 countries.
    • Previously built and sold a small HR software company.
    • Took Radix Energy from zero to $3 million ARR.
  2. Controller
    Jun 2022 - Dec 2024
    Citi · 2 yr 6 mo · Full-time · Denver, CO
    • Ran diligence on 12 acquisitions.
    • Closed the books in 6 days, down from 16.
  3. FP&A Manager
    Mar 2019 - May 2022
    Chewy · 3 yr 2 mo · Full-time · Denver, CO
    • Saved $2 million a year renegotiating vendor contracts.
    • Built the operating model the board used for a $249 million raise.
  4. Financial Analyst
    May 2016 - Mar 2019
    Goldman Sachs · 2 yr 10 mo · Full-time · Denver, CO
    • Closed the books in 4 days, down from 14.
    • Ran diligence on 5 acquisitions.
  5. FP&A Manager
    Dec 2012 - May 2016
    Visa · 3 yr 5 mo · Full-time · Denver, CO
    • Saved $3 million a year renegotiating vendor contracts.

Projects

Open-source SaaS toolkit
2026

A small library for HR software that 271 developers star on GitHub.

Conference talk: lessons from company
2026

What went wrong and what worked while scaling HR software.

References

No references yet.

Education

  1. MIT
    SB, Computer Science
    2000 - 2004

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