He is on the books of FC Rapperswil-Jona and wears shirt number 28. His main role on the pitch is Defender. His estimated market valuation currently stands at 200K €.

His latest transfer saw him join FC Rapperswil-Jona from Lausanne Sports U21 via on 2024-07-12.

Across the Switzerland Challenge League 2025-2026, joseph ambassa appeared in 17 matches and averaged 0.2 tackles, 0 interceptions, 0.2 clearances, and 0 blocked shots per game.