Are you looking for a query that will list all of the scheduled jobs that contain an SSIS step?
SELECT
Job.Name AS Job_Name,
Step.Step_ID AS Step_Number,
Step.Step_Name,
Step.Command AS Step_Command
FROM
MSDB.dbo.SysJobs Job
JOIN
MSDB.dbo.SysJobSteps Step
ON
Job.Job_ID = Step.Job_ID
WHERE
Step.SubSystem = 'SSIS'