Climate & Environment internship

Sales Development Representative Intern

Lumen Energy

Posted

Jun 06, 2026

Location

Remote (US)

Type

internship

Mission

What you will drive

  • Prospect and research target accounts and contacts; help refine Ideal Customer Profile (ICP).
  • Execute daily multi-channel outbound: cold calls, email, and LinkedIn outreach.
  • Manage and execute AiSDR campaigns; lead creative outreach experiments.
  • Qualify inbound and outbound responses; schedule meetings and maintain records in HubSpot.

Impact

The difference you'll make

This role helps commercial real estate owners turn underutilized rooftops into reliable, long-term income through clean energy, advancing sustainability goals and scaling clean energy across portfolios.

Profile

What makes you a great fit

  • Strong written and verbal communication; ability to write concise, personalized outreach.
  • Comfort with cold calling and resilience with rejection.
  • High ownership, reliability, and follow-through; able to operate with minimal supervision.
  • Highly organized and detail-oriented; disciplined about tracking work and results.

Benefits

What's in it for you

Remote-first company with office in San Francisco. Internship (part-time or full-time). Start ASAP (flexible).

About

Inside Lumen Energy

Lumen Energy builds the transaction platform for the electric era, partnering with commercial real estate owners to turn rooftops into income via solar and battery development. Backed by Lowercarbon Capital, Designer Fund, and Moxxie VC.