diff --git a/jenkins/jenkins_create_run_job.sh b/jenkins/jenkins_create_run_job.sh
index cc4bdf19..26fe7475 100755
--- a/jenkins/jenkins_create_run_job.sh
+++ b/jenkins/jenkins_create_run_job.sh
@@ -25,6 +25,9 @@ srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 usage_description="
 Creates a Jenkins job from a given xml file and triggers it to run immediately
 
+If the job already exists, skips creation
+If the job already exists and the enviroment variable JENKINS_OVERWRITE_JOB is set to any value it updates the job definition
+
 Uses the adjacent script jenkins_cli.sh
 
 Jenkins authentication token and environment variables must be set - see jenkins_cli.sh for more details
@@ -43,9 +46,18 @@ job_xml="$2"
 shift || :
 shift || :
 
+if ! [ -f "$job_xml" ]; then
+    die "Job config file not found: $job_xml"
+fi
+
 timestamp "Checking if job '$job_name' already exists'"
 if jenkins_cli.sh list-jobs | grep -q "^$job_name$"; then
-    timestamp "Job '$job_name' already exists, skipping creation"
+    if [ -n "${JENKINS_OVERWRITE_JOB:-}" ]; then
+        timestamp "Job '$job_name' already exists, updating to ensure latest version"
+        "$srcdir/jenkins_cli.sh" update-job "$job_name" < "$job_xml"
+    else
+        timestamp "Job '$job_name' already exists, skipping creation"
+    fi
 else
     timestamp "Job '$job_name' does not exist yet, creating..."
     "$srcdir/jenkins_cli.sh" create-job "$job_name" < "$job_xml"