He is most known for his collections, Bronze Age, Future Nostalgia, Clockwork Love, and his interior design projects.

[1] In 1996 Tjepkema graduated cum laude and subsequently started a MA at the Sandberg Institute in Amsterdam.

[2] Tjepkema's graduation project was selected for the Droog Design collection which eventually resulted in several collaborations between the two.

In 2000, he worked with Droog on Do Break,[3] the British Airways Executive Lounge at London Heathrow in 2004 and the Chair of Textures, which was introduced at Art Basel Miami in collaboration with Friedman Benda in 2006.

The collection was presented at Ventura Lambrate during the Salone Del Mobile in Milano under the title “Future Nostalgia."

He reached out to Tjepkema with the idea, and after realising the potential genetic data had to augment design, they expanded to furniture.

[10] Wired Magazine wrote about the idea that, "Tjepkema and Wolthuis seem to have tapped into a new way of humanizing data...and used it to create something beautiful and practical.

The house had tree-like spindles of photovoltaic panels that sprout from its roof, supplying enough energy to recharge the batteries in the home’s LED lights.

Two sides of the building envelope were clad in hinged slats of wood, which could be opened or closed depending on the weather.

[16][17] Trend Hunter wrote about the collection that "made to look mechanical, they are stunning pendants that represent the complexity of the heart and the feeling of love.

"[18] Tjepkema unveiled Bronze Age in October 2014 at the Colloredo Mansfeld Palace during Designblok Prague.

Prague Post wrote that "even though the collection is based on the classic furniture terminology, it focuses on cultural, environmental and conceptual themes.