Team members

The professional team of r+k Consulting Engineers works at Master level and is graduated mainly from the Technical University at Delft (TUD). It is composed from various disciplines (civil engineering, architecture, aerospace and electrical engineering). Many colleagues stay with r+k for over twenty years and the founder is still available as background director.


  • Marco Lammers (MSc Civil Engineering TUD)


Engineering Staff

  • Billy Bharatadjaya (MSc Aerospace Engineering TUD)
  • Jens Foerster (Dr. Electrical Engineering TUD)
  • Lester Houtenbos (MSc Offshore Engineering TUD)
  • Henk Olie (BSc Architecture HTS Rotterdam)
  • Piet Steffens (BSc Civil Engineering HTS Amsterdam)
  • Aster Tesfaye (Civil Engineering)


Expert Support Members

  • Gerard Kruisman (MSc Civil Engineering TUD)
  • Rien Radder (MSc Civil Engineering TUD)


General Support Staff

  • Indri Haryono (SMA, Jakarta)