A team of product people powered by a genuine passion to help startups build great, scalable, successful products.


Founder Profile

Founded by a product veteran in the industry.

Digital Product Labs™ was founded by Daniel Harman, a 12+ year veteran of product leadership and management, with a extensive background in web / mobile apps and recurring revenue business models across both B2C and B2B sectors.

Find Daniel on LinkedIn & Medium

I have been lucky to have been involved in successful  growth businesses in Melbourne, London, San Francisco and now Los Angeles over the last decade. My passion for product management has always been driven by the simple desire to solve problems and make things better; whether it is a consumer focused product, B2B or a not-for-profit. As I have got older (and dare I say a little wiser) my focus has been targeted towards helping other businesses achieve their product aspirations, and hence the creation of Digital Product Labs™.


A digital agency with product management at its core.


Katie Guernsey, Partner

Katie joins Digital Product Labs™ with over a decade of product experience deploying apps and product features within eCommerce, SaaS and media startup businesses.

Whilst not thinking product, Katie enjoys ballet and exploring Los Angeles.

Find Katie on LinkedIn.


Christiane Langenberg, Lead Product Manager

Christine brings to Digital Product Labs™ 15+ years of product management experience of digital products across Financial Services, eComm, and Telecom industries.

Traveling with her family and exploring other countries / cultures keeps Chris busy outside of work.

Find Christiane on LinkedIn.


Luciano Greiner, Lead Full Stack Architect / Engineer

With 15+ years of experience working  with IBM, Bank of America, British Airways and Disney, Luciano is our lead engineer at Digital Product Labs™. 

Outside of work Luciano is a father of two amazing girls and a self confessed frustrated tennis player!

Find Luciano on LinkedIn.


Tiago Castro, Full Stack Engineer

Tiago joins Digital Product Labs™ with 15+ years of software experience across a broad range of industries including B2C Financial Services and Telecommunications.

Keeping Tiago busy outside of work activities includes playing the  guitar, working out, photography and cooking.

Find Tiago on LinkedIn.


Vivian Gon, Senior Interaction and Visual Designer

With 8+ years design / UX / UI experience, Vivian leads digital design at Digital Product Labs™.

Vivian is a self-confessed dog lover and surrounded by design outside of work, with her twin sister and her husband both being visual designers. 

Find Vivian on LinkedIn


Motivated, passionate yet relaxed in our approach. We value work-life balance.


We practice what we preach. Long hours, intensive project-focused work is balanced by time away from the office. Whether it’s in the ocean, the mountains or further afield, we let our creative minds exercise and take a break whenever we get the opportunity to.

The science behind attaining work-life balance is compelling. Teams simply perform better for a longer period of time when there is work-life balance. We have wholeheartedly adopted this approach and tend to work with similar minded clients and teams.