De Bray was born in Amsterdam, but established himself in Haarlem before 1617, where he is registered as being a member of the schutterij that year in the St. Adrian's cloveniers. He probably followed draftsmanship and painting lessons in the small academy started by Karel van Mander, Hendrick Goltzius and Cornelis van Haarlem, and where he married in 1625. He is registered as a pupil of Goltzius and Cornelis van Haarlem, but he probably started his training in Amsterdam with Jan Pynas, Nicolaes Moeyaert and Pieter Lastman. He painted history paintings, portraits and landscapes. As a Catholic he probably also made altar pieces for the Haarlem underground Catholic churches known as mission stations, or staties. He was a poet and member of the Chamber of rhetoric called "De Wijngaertranken". One of his poems was set to music by his friend the composer Cornelis Padbrué. This is probably how he met his wife Anna, the sister of the painter Jan and the poet Jacob Westerbaen, who were also members of De Wijngaertrancken. They married in 1625.
In 1630 he became a member of the Haarlem Guild of St. Luke. He cooperated with fellow guild member and Catholic architect-artist Jacob van Campen in the decoration of Huis ten Bosch in The Hague. His works draw on the spirit of the Dutch classicism beginning at that time, and are comparable with those of his Catholic colleaguePieter de Grebber. De Bray became active as an architect and designer of silverwork, and became headman of the Guild of St. Luke. He prepared a new charter for the guild in 1631, that was signed by Pieter de Molijn, Outgert Ariss Akersloot, Willem Claesz Heda, Cornelis Cornelisz, Cornelis Claesz van Wieringen, Floris van Dyck, and Isaak Halinck, respected members of the guild. This charter met with a lot of opposition from the Haarlem council, and was probably rejected for its efforts to promote painting above other guild pursuits such as engraving, woodcarving, tapestry-making, smithwork and pottery. In 1632 he made efforts to retrieve the St. Lucas guild relic that had been stored in the guild altar of the St. Bavochurch. It had been given to a representative of the Catholic church for safekeeping and De Bray felt it should be brought back to Haarlem, but the relic was never found.
Work as an architect
As an architect, he was involved in the construction or expansion of Haarlem's City Hall in 1630, the new consistory of the Bavokerk, the Zijlpoort, and St. Annakerk. Outside of Haarlem, he designed a new entrance in 1629 for the Huis te Warmond that featured pilasters and a broad pediment. In Nijmegen he made a design for the city orphanage. He was also a town planner for the city council of Haarlem. He designed an ambitious plan to expand the city on the North side with three canals that was partially implemented in the decades after his death with the Nieuwe Gracht and what is today the Parklaan. In 1631 Salomon de Bray wrote "Architectura Moderna" which provided a biography and descriptions of buildings built by Hendrick de Keyser and Cornelis Danckerts de Ry, two of the key Dutch architects of the period.
Family of painters
Salomon de Bray was the father of ten children, of whom three became notable artists. He probably died of the plague that hit Haarlem in 1664, as he and his children Jacob, Josef, Juliana and Margaretha all died in April and May of that year. His wife had already died the previous year. He was buried in the Sint-Bavokerk in Haarlem.