Behind every successful placement is a team that cares. Our leaders bring expertise, dedication, and a shared mission, to connect professionals with meaningful opportunities while supporting our clients with seamless staffing solutions.
Behind every successful placement is a team that cares. Our leaders bring expertise, dedication, and a shared mission, to connect professionals with meaningful opportunities while supporting our clients with seamless staffing solutions.
When I started Pioneer Healthcare in 2012, it was because I saw something missing in staffing: genuine connection. Too often, it felt like people were being treated like numbers instead of the individuals with real goals, passions, and lives. I wanted to change that.
At Pioneer, we lead with people first, taking time to truly understand our clients and professionals. That’s why we’re committed to placements and partnerships that support both personal well-being and professional growth, whether it’s the professional stepping into the role or the client making it possible. That same care is reflected in how we treat each other internally. Our team culture is rooted in trust, support, and shared purpose. We show up for one another, and that energy flows into everything we do. We are honored to be your Trusted Staffing Partner.
Dan Rietti, CEO
Dan Rietti
Founder and CEO
Clark Phillips
Chief Operating Officer
Solena Barrara
Director of Learning & Development
Patrick Tworoger
Vice President of Account Management & Client Success
Dani Brawner
Associate Vice President, Recruitment
Eitan Margolis
Director of Technology
Sasha Rietti
General Counsel VP of HR and Operations
Dan Rietti
Founder and CEO
Dan founded Pioneer Healthcare Services in 2012 with a vision to humanize healthcare staffing. With over 25 years of experience scaling therapy services for schools nationwide, he brings deep industry insight and leadership. His focus on a People First Approach continues to guide Pioneer’s growth and mission-driven culture.
Education: BBA, International Business – James Madison University
Clark Phillips
Chief Operating Officer
Clark leads Pioneer’s internal operations with expertise in contingent labor and MSP/VMS ecosystems. With a track record of building high-performing teams at top national firms, he ensures operational excellence and client satisfaction at every level.
Education: BS, Management – University of La Verne; Post-grad studies – Cornell
Solena Barrara
Director of Learning & Development
Solena drives Pioneer’s growth strategy and long-term success through data-driven planning and strong client relationships. With over a decade of healthcare staffing experience, she’s passionate about expanding Pioneer’s impact through new service lines and smart innovation.
Education: BS, Family Studies – University of Arizona
Patrick Tworoger
Vice President of Account Management & Client Success
Patrick leads with a rare combination of strategic vision and hands-on execution, bringing over 12 years of leadership experience to Pioneer's team. Known for connecting big-picture thinking to day-to-day action, he fosters environments built on integrity, accountability, and high performance. His commitment to clear communication and continuous growth empowers the people around him to do their best work.
Education: BA, Anthropology – University of San Diego
Dani Brawner
Associate Vice President, Recruitment
Dani leads Pioneer’s recruitment team, aligning strategy with excellence in service. With leadership experience from major staffing firms, she is committed to building strong talent pipelines and delivering client results.
Education: BA, Communications – CSU San Marcos; Certificate – Harvard Business School Online
Eitan Margolis
Director of Technology
Eitan leads Pioneer's technology team, overseeing the company's tech stack and driving innovation through automation and AI-powered solutions. With a strong background in designing scalable systems and streamlined workflows, he translates complex challenges into clear, high-impact solutions that support long-term growth and operational efficiency. His work makes the entire Pioneer team run smarter and faster.
Education: BS, Economics – San Diego State University
Sasha Rietti
General Counsel VP of HR and Operations
Sasha oversees Pioneer’s legal, human resources, and operational functions, ensuring compliance, culture, and growth stay at the center of everything we do. Licensed in both California and Texas, she brings over 15 years of legal expertise to her role. Sasha is passionate about creating a supportive, inclusive workplace that empowers every member of the Pioneer community.
Education: BA, University of Texas at Austin; JD, Whittier Law School
