He practiced medicine in Vienna, and published numerous almanachs, planetary tables and calendars.

His Astrolabium planum was published by Erhard Ratdolt of Augsburg in 1488; a second edition was printed by Johann Emerich for Lucantonio Giunti in Venice in 1494.

His Astrolabium planum, with many tables of astrological calculation and 360 examples of horoscopes, was published by Erhard Ratdolt in Augsburg in 1488.

[1]: 339 Engel's edition of the De magnis coniunctionibus, Latin translations by Jean de Séville (Johannes Hispalensis) of works by the ninth-century astronomer and astrologer Abu Ma'shar al-Balkhi of Baghdad, was published by Ratdolt in 1489, and was influential in the development of the astrological theory of planetary conjunctions.

[3] In 1491 Ratdolt printed Engel's edition of the Decem tractatus astronomiae of the thirteenth-century mathematician and astrologer Guido Bonatti of Forlì.