Alexander was born in Rotterdam in 1973. After graduating from Delft University of Technology, he began his career in Berlin. In 2000, Alexander established an architectural practice together with Berlin-based architect Hans Kollhoff, focusing on projects in the Netherlands and Belgium.
1992–1997: Architecture – Delft University of Technology
1995–1996: Erasmus Scholarship – South Bank University, London
1996: Intern – Höing Architekten, Berlin
1997–1998: Architect – Prof. von Alvensleben, Keller & Partner, Berlin
1998–2000: Project Architect – Kollhoff und Timmermann Architekten, Berlin
2000: Established architectural practice with Hans Kollhoff in Rotterdam
2015–2025: Partner and Co-owner – Kollhoff & Pols architecten
2026–present: Owner & Architect – POLS_architects, The Hague
2008–2016: Guest Tutor – Rotterdam Academy of Architecture and Urban Design
2012–2019: Guest Tutor – Delft University of Technology
2008–present: Guest Tutor & Lecturer at various academies and universities
2008–2015: Architect Member – Design Review Committee, Amstelveen
2015–2018: Chair and Architect Member – Committee II for Spatial Quality, Amsterdam
2023–present: Advisory Committee for Environmental Quality & Cultural Heritage, The Hague
2026–present: Gestaltungsrat Potsdam, Germany
2018–2026: Committee Member, Architecture – Professional Experience Programme, Architects Register
2026–present: Chair – Architecture Examination Committee, Architects Register