Kelley Drye names Stroock & Stroock’s Ralph Allen chief operating officer ... Advertising platform VideoAmp hires Nickelodeon’s Jenny Wall, also ex-HBO, Netflix and Hulu, as chief marketing officer, newly created role ... Cynthia Gaylor to leave as DocuSign chief financial officer, staying on through filing of financial results for its fiscal Q1 ending May 31; company launches search for successor ... SoundCloud promotes President Eliah Seton to CEO, succeeding Michael Weissman, who leaves to join media and consumer tech holding company ForgeLight as partner; SoundCloud also names Fred Wilson, a board member since 2011, its new chairman, succeeding founder Alexander Ljung, who moves to chairman emeritus ... Discover Financial Services names Senior Vice President-Network Operations Jason Hanson to succeed Diane Offereins as executive vice president and president-payment services, and a member of the executive committee, effective when Offereins retires June 30 ... Asian e-commerce retailer Coupang adds Airtable Chief Financial Officer Ambereen Toubassy to its board ... Venture capital firm G2 Venture Partners names former Vertiv CEO Rob Johnson an operating partner ... Fictiv, operating system for custom manufacturing, adds former Twilio Chief Marketing Officer Lynda Smith to its board ... FirstNet announces Joseph Wassel, from DOD’s Defense Information Systems Agency Cyberspace Operations Directorate, as executive director … National Space Society names Isaac Arthur of Science and Futurism with Isaac Arthur as president, succeeding Michelle Hanlon, now president emerita … Security tech company DCS promotes Raul Sagun to chief growth officer.