Russel M. Neiss is Senior Product Engineer at Sefaria, which is based in New York. At Sefaria, Russel M. Neiss has worked to develop a groundbreaking educational resource—a free living library of Jewish texts and their interconnections, in Hebrew and in translation. In his role there, he also creates interactive platforms that enable learners to engage with Jewish textual tradition from anywhere. As Senior Product Engineer, he spearheaded the development of Sefaria’s Source Sheet Builder tool, which has enabled tens of thousands of educators to create their own source sheets and share them with students, colleagues, and the wider community. Together with his colleagues, Neiss also envisioned, developed, and built Sefaria’s first mobile app.