Seattle, Wash.-based PC Bennett Solutions has acquired ROC Solutions of Dallas, Texas. Terms were not disclosed. Tim O'Sullivan, formerly managing partner of ROC Solutions, has been named COO at PC Bennett. O'Sullivan will manage day-to-day operations while overseeing the firm's consulting division.

Julie Lubetkin has joined sales vendor Avalara as VP of marketing, channels and partnership. Lubetkin, who was hired in August, held a position with the same title at Bill.com from 2013 through 2016. Lubetkin originally came into the tax and accounting space as marketing director for the former PayCycle, an early entry into on-line payroll applications. After that company was purchased by Intuit,  she was a marketing director from 2009 through 2013. At Bill.com, she led the accounting professional program.

Joshua Thigpen, who worked at SWK Technologies since August 2013, has returned to Nextec where he worked from May 2005 through August 2013. Thigpen is the latest in a series of personnel changes at Livingston, N.J.-based SWK since former CEO Jeff Roth left in February. He was SVP at SWK from August 2013 through October 2015 and EVP of SWK from October 2015 through last month.

Unit4 has hired Yann Leca as CFO, the latest in  executive restocking by the software company this year. The Netherlands-based company named Stephen Sieber as CEO in April. Leca previously held senior-level positions private equity-owned companies.