Sales Development Representative Intern
Lumen Energy
Company Overview
Lumen Energy
San Francisco, United States
2019
Approximately 50-200 employees (source: seamless.ai). Revenue estimates range from under $5 million to $20 million annually (source: zoominfo.com).
What They Do
Lumen Energy is a San Francisco-based renewable energy startup that specializes in providing a software platform designed to assist commercial real estate owners in evaluating, financing, and deploying solar and battery projects across their property portfolios at scale. The company's core technology, the Lux Engine, automates feasibility studies, financial modeling, and developer matchmaking, making it easier for clients to adopt clean energy solutions. This platform screens properties for solar viability, generates investment-grade financial reports, and activates a competitive marketplace of vetted developers for bidding (source: getlumen.com). Lumen's services are particularly targeted at large commercial real estate owners managing diverse portfolios, enabling them to implement portfolio-wide clean energy strategies without the need for per-property consultants (source: cbinsights.com). Key customers include major players like Nuveen Real Estate, Hines, and Greystar, showcasing the company's strong foothold in the commercial real estate sector.
Projects & Track Record
While specific project names and capacities are not publicly detailed, Lumen Energy primarily acts as a software broker facilitating third-party developer deployments rather than owning assets itself. The company is currently engaged in solar feasibility studies across Nuveen Real Estate’s extensive U.S. portfolio, which includes over 1,500 properties. This initiative aims to deliver actionable financing offers for viable assets, thereby enhancing the economic viability of solar installations (source: getlumen.com). Lumen is also collaborating with Hines to advance clean energy strategies and is supporting Greystar in equipping multifamily properties with solar solutions that provide cost savings and tenant benefits. These efforts highlight the company's commitment to making solar energy more accessible and economically beneficial for its clients (source: getlumen.com). The partnerships with major firms like Nuveen, Hines, and Greystar reflect Lumen's strategic alignment with industry leaders in the real estate sector.
Recent Developments
In July 2024, Lumen Energy announced a significant milestone with $11 million in Series A funding led by Lowercarbon Capital, alongside participation from other notable investors such as Ajax and Nuveen. This funding is intended to support the scaling of their platform amid rising electricity costs and the increasing demand for net-zero solutions among building owners (source: cbinsights.com). Additionally, the company launched its Auto PPA software, which automates the complexities associated with power purchase agreements, further enhancing its service offerings. Lumen also joined the Urban Land Institute’s Greenprint program, which provides access to sustainability data and networks, reinforcing its commitment to sustainability in the built environment (source: cbinsights.com). These developments indicate Lumen's proactive approach to expanding its capabilities and influence in the renewable energy sector.
Working There
Lumen Energy, as a venture-backed startup, offers a dynamic work environment with roles spanning engineering, product development, design, business development, and project finance. The company is led by experienced executives, including COO Dave Coen, who oversees engineering and product design, and other leaders with extensive backgrounds in energy finance and technology (source: zoominfo.com). Hiring is likely concentrated at their San Francisco headquarters, with potential remote opportunities available in states where they have client projects. The company culture emphasizes cross-functional collaboration, equitable clean energy transitions, and the importance of diverse and inclusive teams (source: getlumen.com). While specific benefits are not detailed in public sources, prospective employees are encouraged to inquire directly for more information regarding career opportunities and company perks.
Last updated on Feb 23, 2026 | Report an issue
Job Description
Lumen Energy is building the transaction platform for the electric era. We partner with commercial real estate owners to turn underutilized rooftops into reliable, long-term income. We do this by delivering investment-grade analysis powered by our proprietary Lux Engine, securing transparent competition among top solar and battery developers, and providing white-glove service throughout. Owners unlock predictable ancillary revenue, advance sustainability goals, and scale clean energy across their portfolios without distraction from their core business.
We work with the largest names in institutional commercial real estate, including Nuveen, KKR, JP Morgan Asset Management, Apollo, and Hines. Backed by Lowercarbon Capital, Designer Fund, and Moxxie VC, our team comes from Google X, Arcadia, Stripe, and leading CRE and finance firms, united by a mission to power the built world with profitable clean energy.
We are a remote-first company, but we do have an office in San Francisco if you're local.
Responsibilities
- Prospect and research target accounts and contacts; help refine our Ideal Customer Profile (ICP).
- Execute daily multi-channel outbound: cold calls, email, and LinkedIn outreach.
- Manage and execute AiSDR campaigns (set up targets, messaging variants, launches, monitoring, and iteration).
- Lead creative outreach experiments (A/B tests on subject lines, openers, CTAs, sequences, and personas); document results and recommend next tests.
- Qualify inbound and outbound responses; schedule meetings and provide clean handoffs with context.
- Maintain accurate records of activities, outcomes, and notes in HubSpot; keep data clean and organized.
- Collaborate with Sales and Marketing to improve messaging, objection handling, and outbound templates.
What you bring
- 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.
Nice to have
- Experience with HubSpot (or other CRM), sequencing tools, and list-building/research workflows.
- Familiarity with LinkedIn Sales Navigator.
- Familiarity with latest AI technologies (Claude / co-work, AISDR, notion AI)
- Interest in clean energy, commercial real estate, or B2B sales.
Role details
- Internship (part-time or full-time). Preference will be given to upperclassmen in undergrad. Successful candidates will be given the opportunity to convert to full-time or stay on part-time during school year and beyond.
- Location: Remote (US) or NYC preferred
- Start: ASAP (flexible)
Lumen Energy is an equal opportunity employer. We celebrate diverse perspectives and are committed to building an inclusive workplace. US work authorization required. We are unable to sponsor H1B visas at this time.
Apply now
Job expired?Please let Lumen Energy know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
Apply now
Job expired?Please let Lumen Energy know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
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About the role
June 12, 2026
Internship
Company
- United States of America
Internship level, preferably upperclassmen in undergrad
UTC-05:00 — UTC-04:00
