Management Team

The Spruce management team has decades of experience in the consumer finance, renewable energy and software industries.

Chief Executive Officer

Prior to becoming Chief Executive Officer, Steve held the position of Chief Operations Officer overseeing all operational aspects of delivering Spruce’s consumer finance products, services and technology to its customers. Before joining Spruce, Steve served as a Senior Vice President at Discover Financial Services, where he led the student loans business through the integration of The Student Loan Corporation and later oversaw the largest portfolio acquisition in Discover’s history. He also managed the six-fold growth in the deposits business, which became the company’s largest funding source. Prior to Discover, Steve led underwriting and servicing operations for GMAC’s auto insurance business and held operations strategy roles at Capital One. He is an alumnus of McKinsey & Company and Andersen Consulting (now Accenture), where he served a variety of clients in the energy and financial services sectors. Steve graduated from Wesleyan University with a BA in economics and government and holds an MBA from Northwestern’s Kellogg Graduate School of Management.

steve olzewski spruce


As President, Darren oversees all of Spruce’s capital markets, accounting and control, and corporate finance activities. Darren has spent more than 25 years in the financial services industry. He was formerly the CFO and EVP of strategy at B2R Finance and, both innovative technology-enabled lending platforms. Previously, Darren was the CFO at RevolutionMoney, a financial technology and payments company that was sold to American Express in 2010. Darren also served as the SVP and head of Fannie Mae’s Credit Finance Business until 2005. Prior to Fannie, he was a managing director at Goldman Sachs and a principal at Morgan Stanley, where he raised over $30 billion in high yield and loan capital for more than 200 companies. Darren has served the White House Fellows Program as a regional judge, is a sought-after speaker on global capital markets and entrepreneurial management, and has guest lectured at The Johnson School of Business at Cornell University, and George Washington University’s graduate economics program. He serves on the board for three public mutual funds for Avenue Capital and as a Trustee for the Sidwell Friends School in Washington, DC. Darren holds a BS with honors in biochemistry from Harvard and an MBA from Harvard Business School.

darren thompson spruce

Chief Financial Officer

Adam oversees all of Spruce’s capital markets, accounting and control, and corporate finance activities. Previously, he served as the VP of Finance for Spruce and was part of the Finance team at Clean Power Finance prior to its merger with Kilowatt Financial. Before his senior finance and operations roles at Clean Power Finance, Buckfelder was an investment banker at Barclays Capital, where he focused on the power and utilities sector.

Senior Vice President, General Counsel & Corporate Strategy

Nick oversees all of Spruce’s legal, corporate and contract activities, including: project finance and tax equity deals; lending facilities; consumer finance agreements; regulatory compliance for new products and geographies; privacy and data protection; project development law; intellectual property development and protection; vendor, channel and distribution agreements; dispute resolution; and general business, corporate, equity and HR matters. Nick was previously general counsel and corporate secretary for Clean Power Finance. Prior to that, he served as general counsel and corporate secretary for Sungevity. Before that, Nick was the general counsel for Mainstream Energy, the parent of REC Solar and AEE Solar. Before entering the solar industry, Nick was the deputy general counsel at Yodlee, an assistant general counsel in the Products Law Group at Sun Microsystems, and an associate attorney at Heller, Ehrman, White, & McAuliffe LLP. Nick is a founding member of the board of directors of the Solar Energy Finance Association, and co-chairs the Solar Energy Industries Association’s Consumer Protection Committee. He holds a JD from the University of California, Hastings College of Law and a BA from Georgetown University.

nick mack spruce

Senior Vice President, Talent Management & Human Resources

Leslie is responsible for Spruce’s human resources, as well as all things related to recruiting, compensation, talent management and corporate environment, including education, training and culture. Leslie has spent more than 20 years developing human resource and talent strategies for both publicly and privately held companies. Prior to joining Spruce, Leslie served as the vice president of talent management for Clean Power Finance, where she was responsible for talent development and human resources. Previously, Leslie founded and managed two successful executive search firms, GreenAtom and HNC Search, and spent several years as a senior partner at Heidrick & Struggles. Leslie holds a B.A. in history from the University of California, Los Angeles.

leslie cariani spruce

Chief Technology Officer

Arash has over 20 years of experience as a software and technology professional. He joined the company in 2009 and has been chiefly responsible for designing and building the SpruceFlow software platform. Prior to joining Spruce, Arash was the technical lead for the Wikipedia Usability Initiative, which was a project aimed at increasing the usability of Wikipedia for new contributors and reducing barriers to public participation. Arash spent the first 14 years of his career at the biotech company Genentech, where he held a variety of positions in the Corporate Information Technology group, including Software Engineer, Project Manager, and Enterprise Architect, supporting the Manufacturing, R&D, Engineering, and Quality Assurance business units. Prior to that, he studied Physics at the University of California at Davis.