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Conlan O'Leary

Co-founder, CEO

Conlan O'Leary is Co-Founder and CEO of Sighten. Prior to Sighten, Conlan helped manage the structuring and pricing desk at Clean Power Finance, a leading residential solar financing platform. Conlan has a deep knowledge of the US solar marketplace with 6+ years working exclusively in residential solar financing and quoting software. Conlan has prior experience in technology and cleantech investment banking as well as environmental commodities trading. He is a graduate of Dartmouth College in New Hampshire and holds degrees in economics and philosophy.

Graham Hommel

Co-founder, VP Engineering Operations

Graham partnered with Conlan to create Sighten after the two worked together for a number of years at Clean Power Finance. Graham developed a number of Sighten's core, back-end libraries and is responsible for developer operations and financial coding. At CPF, Graham developed and maintained the asset pricing models for funds deploying capital across the CPF platform. Prior to his work at CPF, Graham spent five years in investment banking and private equity at Goldman Sachs and KKR. Graham attended the University of Notre Dame where he received degrees in finance and German.

David Villagra

Co-founder, CTO

David leads software architecture and implementation at Sighten. He joined Conlan and Graham at the outset to help build the Sighten platform from the ground-up. He now spends most of his time leading the growing engineering team. Prior to Sighten, David spent his career developing SaaS products for the biotechnology industry, including a web application for DNA sequencing and a platform used to help clinicians personalize treatment decisions. David was on the pre-medicine track at Dartmouth College, but picked up software engineering in earnest after graduating and never looked back.

Mariya Nomanbhoy


Mariya oversees product management and design at Sighten. She has significant experience with solar quoting and finance tools, joining Sighten after running product for four years at Clean Power Finance. Mariya also has extensive experience building financial technology systems from her three years working at Goldman Sachs, where she focused on risk analytics systems for alternative investment teams. She has a degree in computer science from Columbia and an MBA from Haas. Mariya started her career as a developer at age 12 when she wrote her first Arkanoid application and she's loved working on technology ever since.

Working at Sighten is challenging, fun, and rewarding! Sighten is driving the clean energy revolution through its industry-leading solar software platform and financing marketplace.  Every day, Sighten supports hundreds of solar companies across the US, ensuring they have the tools to be successful and accelerate consumer adoption of clean energy. If you want to work somewhere where you can have a big impact and collaborate with creative and driven people then Sighten is the place for you.


Open Positions


Customer Support:

Customer Support Manager

Full time in San Francisco, CA 

Product Management:

Senior Product Manager

Full time in San Francisco, CA or Austin, TX

Software Designer

Full time in San Francisco, CA or Austin, TX

Software Development:

DevOps Engineer

Full time in San Francisco, CA or Austin, TX

Principal Software Engineer

Full time in San Francisco, CA or Austin, TX

Senior Software Engineer

Full time in San Francisco, CA or Austin, TX

Software Engineer

Full time in San Francisco, CA or Austin, TX


World Positive
World Positive
Health & Wellness Coverage
Health & Wellness Coverage
Tahoe Retreats
Tahoe Retreats


  • Competitive compensation package
  • Medical, dental and vision coverage options
  • FSA/HSA and other pretax spending benefits
  • Retirement benefits, with partial match
  • Frequent company events (now virtual retreats, happy hours, and lunch-and-learns)
  • Volunteer  opportunities and charitable giving program
  • Choose your own hardware/software setup
  • Fun, open environment with a growing team!


San Francisco

1 California St.

San Francisco, CA, 94111