Olena has significant work experience as a legal adviser in a number of Ukrainian companies operating in agricultural sector and real estate. Specializes in comprehensive legal support of economic and intra-corporate activities, disputes resolution, interaction with state structures and supervisory authorities, including judicial bodies and law enforcement agencies, the State Executive Service.

Olena's professional interests also cover insolvency procedures realization and recognition of transactions (economic contracts) as invalid and null and void, lease and real estate. Advises on selection of jurisdictions for implementation of FinTech activities.

Graduated from the Law Faculty of Vadim Hetman Kyiv National Economic University. As a post-graduate student of the Law Faculty of Taras Shevchenko National University of Kyiv, is working on a thesis on the content and limits of the consideration by the administrative court of administrative discretion of the subjects of public administration.
In 2017, Ms. Semenii was admitted to practice as attorney-at-law.