Итоговый код, который я тестировал:

[Serializable][StructLayout(LayoutKind.Sequential)]
public struct DataContainer
{
    public bool isActive;
    public int someNumber;
    public override string ToString()
    {       
              return "Is DataContainer";
    }
}

public unsafe class TestJob : VulpesMonoBehaviour
{
    [SerializeField] private DataContainer dataContainer;
    private UnsafeTestJob job;
    private JobHandle jobHandle;
    public DataContainer* dataPtr;

    void Start()
    {
        unsafe
        {
            fixed (DataContainer* ptr = &dataContainer)
            {
                dataPtr = ptr;
                job = new UnsafeTestJob
                {
                    dataPtr = ptr
                };
            }
        }

        StartCoroutine(RunJobRoutine());
    }
    [Button("Stop Job")]
    public void StopJob()
    {
        dataContainer.isActive = false;
    }

    public void OnDestroy()
    {
        jobHandle.Complete();
    }
    IEnumerator RunJobRoutine()
    {
        jobHandle = job.Schedule();

        Debug.Log("Job started!");

        yield return new WaitUntil(() => jobHandle.IsCompleted);

        jobHandle.Complete();
        Debug.Log("Job completed!");
    }

}