Nyanje is a Doctoral research and teaching fellow for the Africa Multiple Cluster of Excellence at the University of Bayreuth in Germany and the Leibniz University in Hannover Germany. His research work at the Cluster involves a multidisciplinary research on the dispute resolution mechanisms of African Courts and Tribunals in relation to boosting trade in the the different economic blcoks in Africa. Additionally, he teaches and researches International Law and Dispute Settlement, Climate Change and the Politics of International law and Comparative law at the Leibniz University in hannover.

He holds an LLM in International Law and Dispute Settlement from the MIDS, a joint program of the Graduate Institute of Geneva and the University of Geneva. He is also admitted to the bar in Kenya as an advocate of the High Court of Kenya.

He has previously worked as a dispute sttlement lawyer for notable law firms in Switzerland and Kenya where has advised clients and worked on cases in international commercial arbitration, investment arbitration and Sports arbitration in institutions such as ICC, LCIA, SCAI, SIAC, PCA, ICSID, CAS, NCIA, KIAC and also ad-hoc tribunals. He has also advised clients on cross border in various African countries.

He has also previously taught international investment law, public international law and international law to undergraduate students at a law school in Kenya