From childhood, Soika was fascinated by drawing and the nature of the Yavoriv region. From 1955 to 1958, he studied in the department of monumental-decorative painting at the Lviv State Institute of Decorative and Applied Arts (now Lviv National Academy of Arts). In 1964–1998, he worked as an artist in the monumental workshop of the Lviv Art and Production Combine of the USSR Art Fund, creating panels, mosaics, and carved decorative works.

In his work, Soika combined academic drawing with folk motifs, depicting nature, human figures, and symbolic images with sincere emotion and delicate color. His artistic breakthrough came in 1968, when he participated in a republican exhibition and the centenary exposition honoring Lesya Ukrainka, titled On the Field of Blood.

In 1998, Soika began his pedagogical career at the Art and Vocational School as a drawing and painting instructor.

Soika left behind more than a hundred portraits, landscapes, mosaics, and monumental paintings, as well as numerous students whom he taught to draw with their hearts. His legacy reflects a genuine sense of harmony between humans and nature, brought to life in every canvas and monument.

Among his notable works are: the carved panel Forest Song for the Meliorator Cultural Center in Dubliany (1975); the monumental-decorative painting (encaustic) of the assembly hall at the Lviv Chemical-Pharmaceutical Plant Work and Rest (1983); the sgraffito Rest (five panels) for the dormitory Electron in Lviv (1987); the series of mosaic panels Spring for the Prolisok Sanatorium in Morshyn (1987–1988); mosaics Information Space for the Soyuzdruk agency in Lviv.

Soika participated in both solo and group exhibitions in Ukraine, including “Karlo Zvirynskyi and His Spiritual School” and “Lviv Portrait” at the Palace of Arts in Lviv, “Art of the 60s” at the Museum of Ethnography and Artistic Crafts in Lviv, and a solo exhibition for his birthday in Ivano-Frankivsk, among others.

During his lifetime, Bohdan-Borys Soika did not receive high state honors. He never sought fame. Yet his art and warm humanity earned him enduring respect among his students and colleagues.