Hart District Names Jason d'Autremont Assistant Superintendent

The William S. Hart Union High School District Governing Board unanimously appointed d'Autremont to fill the opening left by Deputy Superintendent Collyn Nielsen's retirement.

Updated on Nov. 6, 2026 in People

Hart District Names Jason d'Autremont Assistant Superintendent

The William S. Hart Union High School District Governing Board unanimously appointed Jason d'Autremont as Assistant Superintendent of Human Resources. The appointment fills the position created by the upcoming retirement of Deputy Superintendent Collyn Nielsen.

Why it matters

The appointment fills a senior leadership role in a Santa Clarita-area school district as a key administrator prepares to step down. It shows the district promoting from within, with d'Autremont's long tenure in the Hart District carried into a district-wide human resources role.

The Governing Board approved the appointment unanimously, with no dissenting votes recorded. The source does not provide salary, contract length, or budget figures for the position.

The players

Jason d'Autremont

Jason d'Autremont is a longtime William S. Hart Union High School District administrator who previously served as Director of Human Resources.

Collyn Nielsen

Collyn Nielsen is the Deputy Superintendent of the William S. Hart Union High School District whose upcoming retirement created the opening.

William S. Hart Union High School District

The William S. Hart Union High School District is a public school district serving the Santa Clarita Valley area of Los Angeles County.

The details

d'Autremont began his career in the Hart District as a special education math teacher and coach before serving as an assistant principal and principal at Canyon and Hart high schools. He most recently served as Director of Human Resources, and the new role takes effect February 1, 2027.

February 1, 2027: d'Autremont's appointment as Assistant Superintendent of Human Resources takes effect.

Market Landscape

Public school districts in California fill senior administrative vacancies such as assistant superintendent roles through governing board action rather than open market competition. The Hart District's choice to promote a longtime internal administrator follows this pattern of succession within the district.

For families and staff in the Hart District, the appointment changes who leads human resources decisions district-wide beginning February 1, 2027. Staff hiring, employee relations, and personnel policy will fall under d'Autremont's direction once the transition takes effect.

The takeaway

Internal promotions like this one keep institutional knowledge in place during leadership transitions. Readers following Santa Clarita Valley schools can watch for how the district handles the Director of Human Resources vacancy that d'Autremont leaves behind.