Mathias Rossfjord works in one of Norway’s largest and most highly ranked construction law departments.
| 2026– | Senior Lawyer, Advokatfirmaet Haavind |
| 2026 | Senior Lawyer, Arntzen Grette |
| 2023–2026 | Associate, Arntzen Grette |
| 2018–2023 | Master of Law, University of Oslo |