After graduating from the University of Pittsburgh, Jablonski embarked on a career in law. With Ronald A. Brand, he co-authored Forum Non Conveniens: Past, Present and Future which was published by Oxford University Press in 2008. His legal writings have also appeared in other publications like the Journal of International Law and Politics and the University of MiamiInter-American Law Review, among others. In 2009, his friends and family heard a demo of a song he had made and urged him to pursue music as a career. He adopted the stage name, "SJ," for that endeavor. In 2010, he founded the Acoustic Soul Group, of which his Acoustic Soul Records is apart. He began releasing songs that year, including "I Like You" which was nominated for a Hollywood Music & Media Award. He was also named a grand finalist in the UK's Festival4TheStars for writing the song. A Spanish version of the song, "Lo Mejor De Mi," won first place in the International Songwriting Competition in the Latin category. In March 2011, "I Like You" reached the top 10 of FMQBs adult contemporary chart alongside acts like Katy Perry, Bruno Mars, and Train. In May 2011, he released his first commercial studio-recorded EP, Coffee, featuring the songs "I Like You," "Let Me Be," "Coffee," and others. Later in 2011, Sirius XM's The Coffee House station nominated SJ for the "Discovery of the Year" award, and his song, "Coffee," won a Hollywood Music & Media Award. In July 2012, it was announced that Taylor Guitars, Sennheiser, Future Sonics, Gator Cases, Hercules Stands, and Elixir strings had officially endorsed SJ. In August 2012, he released his first full-length studio album entitled Coffee: Strong Brew Edition. The album featured all the songs from the 2011 EP, Coffee, with 7 new tracks. Other South Florida artists like Randy Singer, Erica Sommer, and Joshua Stedman were featured on some songs. The album was recorded at Outer Reach Music Studios in Miami. SJ also released an accompanying live album and DVD entitled Coffee: Unfiltered. The song, "Let Me Be," spent over 13 weeks on Mediabase's adult contemporary charts, peaking at number 32. In September 2012, he was one of 25 finalists nominated for the American Songwriter Coffeehouse Tour competition. In October and November, SJ opened for Pentatonix on 6 dates, concluding his nationwide "Coffee Tour." Later in November, he went on a short Midwest tour. Throughout 2011 and 2012, SJ's songs were played on over 50 adult album alternative and americana radio stations across the country. In May 2013, SJ opened for Ed Sheeran at SunFest in West Palm Beach, Florida. In September of that year, he opened for Robin Zander of Cheap Trick. In 2014, SJ was named one of 8 semi-finalists in 3 categories for the International Songwriting Competition. Later in 2014, he launched the Covers & Others video series in collaboration with Day's Edge Productions. The goal of the series was to bring awareness to organizations with social, scientific, or environmental initiatives by playing covers of songs over videos related to their work.
