diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 6a9db99..d721fb3 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -29,11 +29,21 @@ pub fn run() {
 
             let http_client = reqwest::Client::new();
 
+            let db_arc = Arc::new(Mutex::new(conn));
             app.manage(AppState {
-                db: Arc::new(Mutex::new(conn)),
+                db: db_arc.clone(),
+                encryption_key,
+                http_client: http_client.clone(),
+            });
+
+            // Start background poller
+            services::poller::start(
+                db_arc,
                 encryption_key,
                 http_client,
-            });
+                app.handle().clone(),
+            );
+
             Ok(())
         })
         .invoke_handler(tauri::generate_handler![
diff --git a/src-tauri/src/services/mod.rs b/src-tauri/src/services/mod.rs
index 3470561..c335479 100644
--- a/src-tauri/src/services/mod.rs
+++ b/src-tauri/src/services/mod.rs
@@ -1,3 +1,4 @@
 pub mod crypto;
 pub mod filter_engine;
+pub mod poller;
 pub mod tuleap_client;
diff --git a/src-tauri/src/services/poller.rs b/src-tauri/src/services/poller.rs
new file mode 100644
index 0000000..66c0c55
--- /dev/null
+++ b/src-tauri/src/services/poller.rs
@@ -0,0 +1,180 @@
+use crate::models::credential::TuleapCredentials;
+use crate::models::ticket::ProcessedTicket;
+use crate::models::tracker::WatchedTracker;
+use crate::services::{crypto, filter_engine};
+use crate::services::tuleap_client::TuleapClient;
+use rusqlite::Connection;
+use std::sync::{Arc, Mutex};
+use tauri::{AppHandle, Emitter};
+use tokio::time::{interval, Duration};
+
+pub fn start(
+    db: Arc<Mutex<Connection>>,
+    encryption_key: [u8; 32],
+    http_client: reqwest::Client,
+    app_handle: AppHandle,
+) {
+    tokio::spawn(async move {
+        let mut tick = interval(Duration::from_secs(60));
+        loop {
+            tick.tick().await;
+            poll_all_trackers(&db, &encryption_key, &http_client, &app_handle).await;
+        }
+    });
+}
+
+async fn poll_all_trackers(
+    db: &Arc<Mutex<Connection>>,
+    encryption_key: &[u8; 32],
+    http_client: &reqwest::Client,
+    app_handle: &AppHandle,
+) {
+    // 1. Read all enabled trackers and credentials from DB
+    let (trackers, client) = {
+        let conn = match db.lock() {
+            Ok(c) => c,
+            Err(e) => {
+                eprintln!("poller: failed to lock db: {}", e);
+                return;
+            }
+        };
+
+        let trackers = match WatchedTracker::list_all_enabled(&conn) {
+            Ok(t) => t,
+            Err(e) => {
+                eprintln!("poller: failed to list trackers: {}", e);
+                return;
+            }
+        };
+
+        // 2. Read credentials; bail silently if none
+        let creds = match TuleapCredentials::get(&conn) {
+            Ok(Some(c)) => c,
+            Ok(None) => return,
+            Err(e) => {
+                eprintln!("poller: failed to read credentials: {}", e);
+                return;
+            }
+        };
+
+        let password = match crypto::decrypt(encryption_key, &creds.password_encrypted) {
+            Ok(p) => p,
+            Err(e) => {
+                eprintln!("poller: failed to decrypt password: {}", e);
+                return;
+            }
+        };
+
+        let client = TuleapClient::new(http_client, &creds.tuleap_url, &creds.username, &password);
+
+        (trackers, client)
+    }; // lock released
+
+    // 3. For each tracker that should_poll, poll it
+    for tracker in &trackers {
+        if should_poll(tracker) {
+            poll_single_tracker(db, &client, tracker, app_handle).await;
+        }
+    }
+}
+
+fn should_poll(tracker: &WatchedTracker) -> bool {
+    let last_polled_at = match &tracker.last_polled_at {
+        None => return true, // Never polled
+        Some(s) => s,
+    };
+
+    let last = match chrono::DateTime::parse_from_rfc3339(last_polled_at) {
+        Ok(dt) => dt,
+        Err(e) => {
+            eprintln!("poller: failed to parse last_polled_at '{}': {}", last_polled_at, e);
+            return true; // Treat as never polled on parse error
+        }
+    };
+
+    let elapsed = chrono::Utc::now().signed_duration_since(last).num_minutes();
+    elapsed >= tracker.polling_interval as i64
+}
+
+async fn poll_single_tracker(
+    db: &Arc<Mutex<Connection>>,
+    client: &TuleapClient,
+    tracker: &WatchedTracker,
+    app_handle: &AppHandle,
+) {
+    // 1. Fetch artifacts
+    let artifacts = match client.get_artifacts(tracker.tracker_id).await {
+        Ok(a) => a,
+        Err(e) => {
+            eprintln!("poller: failed to fetch artifacts for tracker {}: {}", tracker.id, e);
+            return;
+        }
+    };
+
+    // 2. Apply filters
+    let filtered = filter_engine::apply_filters(&artifacts, &tracker.filters);
+
+    // 3. Insert new tickets and update last_polled_at
+    let new_count = {
+        let conn = match db.lock() {
+            Ok(c) => c,
+            Err(e) => {
+                eprintln!("poller: failed to lock db for insert: {}", e);
+                return;
+            }
+        };
+
+        let mut count = 0usize;
+
+        for artifact in &filtered {
+            let artifact_id = artifact
+                .get("id")
+                .and_then(|v| v.as_i64())
+                .unwrap_or(0) as i32;
+
+            let artifact_title = artifact
+                .get("title")
+                .and_then(|v| v.as_str())
+                .unwrap_or("")
+                .to_string();
+
+            let artifact_data = serde_json::to_string(artifact)
+                .unwrap_or_else(|_| "{}".to_string());
+
+            match ProcessedTicket::insert_if_new(
+                &conn,
+                &tracker.id,
+                artifact_id,
+                &artifact_title,
+                &artifact_data,
+            ) {
+                Ok(Some(_)) => count += 1,
+                Ok(None) => {}
+                Err(e) => {
+                    eprintln!("poller: failed to insert ticket (artifact {}): {}", artifact_id, e);
+                }
+            }
+        }
+
+        // 4. Update last_polled_at
+        if let Err(e) = WatchedTracker::update_last_polled(&conn, &tracker.id) {
+            eprintln!("poller: failed to update last_polled_at for tracker {}: {}", tracker.id, e);
+        }
+
+        count
+    }; // lock released
+
+    // 5. Emit event if new tickets found
+    if new_count > 0 {
+        if let Err(e) = app_handle.emit(
+            "new-tickets-detected",
+            serde_json::json!({
+                "tracker_id": tracker.id,
+                "tracker_label": tracker.tracker_label,
+                "count": new_count,
+            }),
+        ) {
+            eprintln!("poller: failed to emit event: {}", e);
+        }
+    }
+}