diff --git a/internal/daemon/daemon.go b/internal/daemon/daemon.go
index 95d1f54..16e3ecd 100644
--- a/internal/daemon/daemon.go
+++ b/internal/daemon/daemon.go
@@ -69,7 +69,7 @@ func Run(ctx context.Context, conf *config.Config) error {
 		}
 	}
 
-	jobs := newJobs()
+	jobs := newJobs(prometheus.DefaultRegisterer)
 
 	// start control socket
 	controlJob, err := newControlJob(conf.Global.Control.SockPath, jobs)
@@ -123,6 +123,8 @@ func Run(ctx context.Context, conf *config.Config) error {
 type jobs struct {
 	wg sync.WaitGroup
 
+	metrics metrics
+
 	// m protects all fields below it
 	m       sync.RWMutex
 	wakeups map[string]wakeup.Func // by Job.Name
@@ -130,12 +132,32 @@ type jobs struct {
 	jobs    map[string]job.Job
 }
 
-func newJobs() *jobs {
-	return &jobs{
+type metrics struct {
+	running *prometheus.GaugeVec
+}
+
+func newJobs(registry prometheus.Registerer) *jobs {
+	jobs := &jobs{
+		metrics: metrics{
+			running: prometheus.NewGaugeVec(prometheus.GaugeOpts{
+				Namespace: "zrepl",
+				Subsystem: "daemon",
+				Name:      "job_up",
+				Help: `Each zrepl-level job starts its life with this metric =1.
+It reamins =1 until the job leaves its Run() function.
+The purpose of this metric is primarily for Prometheus to be aware of all job names.
+The value will only transition to 0 during zrepl daemon shutdown or panics.
+`,
+			}, []string{"zrepl_job", "internal"}),
+		},
 		wakeups: make(map[string]wakeup.Func),
 		resets:  make(map[string]reset.Func),
 		jobs:    make(map[string]job.Job),
 	}
+
+	registry.MustRegister(jobs.metrics.running)
+
+	return jobs
 }
 
 func (s *jobs) wait() <-chan struct{} {
@@ -242,7 +264,10 @@ func (s *jobs) start(ctx context.Context, j job.Job, internal bool) {
 	s.resets[jobName] = resetFunc
 
 	s.wg.Add(1)
+	runningJobsGauge := s.metrics.running.WithLabelValues(jobName, fmt.Sprintf("%v", internal))
+	runningJobsGauge.Inc()
 	go func() {
+		defer runningJobsGauge.Dec()
 		defer s.wg.Done()
 		job.GetLogger(ctx).Info("starting job")
 		defer job.GetLogger(ctx).Info("job exited")