diff --git a/backend/windmill-worker/src/bash_executor.rs b/backend/windmill-worker/src/bash_executor.rs
index 429fd88c94..7d92607af5 100644
--- a/backend/windmill-worker/src/bash_executor.rs
+++ b/backend/windmill-worker/src/bash_executor.rs
@@ -215,7 +215,10 @@ exit $exit_status
             .current_dir(job_dir)
             .env_clear()
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Bash).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Bash, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
             .args(cmd_args)
@@ -241,7 +244,10 @@ exit $exit_status
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Bash).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Bash, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
             .env("HOME", HOME_ENV.as_str())
diff --git a/backend/windmill-worker/src/bun_executor.rs b/backend/windmill-worker/src/bun_executor.rs
index 914c3ca57b..6ada66c4bb 100644
--- a/backend/windmill-worker/src/bun_executor.rs
+++ b/backend/windmill-worker/src/bun_executor.rs
@@ -1564,7 +1564,9 @@ try {{
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Bun).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Bun, &job.id, &job.workspace_id, conn).await?,
+            )
             .envs(common_bun_proc_envs)
             .env("PATH", PATH_ENV.as_str())
             .args(args)
@@ -1582,7 +1584,10 @@ try {{
                 .env_clear()
                 .envs(envs)
                 .envs(reserved_variables)
-                .envs(get_proxy_envs_for_lang(&ScriptLang::Bun).await?)
+                .envs(
+                    get_proxy_envs_for_lang(&ScriptLang::Bun, &job.id, &job.workspace_id, conn)
+                        .await?,
+                )
                 .envs(common_bun_proc_envs)
                 .stdin(Stdio::null())
                 .stdout(Stdio::piped())
@@ -1613,7 +1618,10 @@ try {{
                 .env_clear()
                 .envs(envs)
                 .envs(reserved_variables)
-                .envs(get_proxy_envs_for_lang(&ScriptLang::Bun).await?)
+                .envs(
+                    get_proxy_envs_for_lang(&ScriptLang::Bun, &job.id, &job.workspace_id, conn)
+                        .await?,
+                )
                 .envs(common_bun_proc_envs)
                 .stdin(Stdio::null())
                 .stdout(Stdio::piped())
diff --git a/backend/windmill-worker/src/csharp_executor.rs b/backend/windmill-worker/src/csharp_executor.rs
index 4c3e63f4c9..22f46e724b 100644
--- a/backend/windmill-worker/src/csharp_executor.rs
+++ b/backend/windmill-worker/src/csharp_executor.rs
@@ -600,7 +600,10 @@ pub async fn handle_csharp_job(
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::CSharp).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::CSharp, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
@@ -633,7 +636,10 @@ pub async fn handle_csharp_job(
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::CSharp).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::CSharp, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("DOTNET_CLI_HOME", &*CSHARP_CACHE_DIR)
diff --git a/backend/windmill-worker/src/deno_executor.rs b/backend/windmill-worker/src/deno_executor.rs
index 6cbf85c47b..d9f6785eb6 100644
--- a/backend/windmill-worker/src/deno_executor.rs
+++ b/backend/windmill-worker/src/deno_executor.rs
@@ -121,11 +121,13 @@ async fn get_common_deno_proc_envs(
     }
 
     // Add proxy envs (including OTEL tracing proxy if enabled for deno)
-    for (k, v) in get_proxy_envs_for_lang(&ScriptLang::Deno)
-        .await
-        .unwrap_or_default()
-    {
-        deno_envs.insert(k.to_string(), v);
+    if let Some(conn) = conn {
+        for (k, v) in get_proxy_envs_for_lang(&ScriptLang::Deno, job_id, w_id, conn)
+            .await
+            .unwrap_or_default()
+        {
+            deno_envs.insert(k.to_string(), v);
+        }
     }
 
     return deno_envs;
diff --git a/backend/windmill-worker/src/go_executor.rs b/backend/windmill-worker/src/go_executor.rs
index ddcc108659..0315bf25c3 100644
--- a/backend/windmill-worker/src/go_executor.rs
+++ b/backend/windmill-worker/src/go_executor.rs
@@ -354,7 +354,7 @@ func Run(req Req) (interface{{}}, error){{
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Go).await?)
+            .envs(get_proxy_envs_for_lang(&ScriptLang::Go, &job.id, &job.workspace_id, conn).await?)
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
@@ -375,7 +375,7 @@ func Run(req Req) (interface{{}}, error){{
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Go).await?)
+            .envs(get_proxy_envs_for_lang(&ScriptLang::Go, &job.id, &job.workspace_id, conn).await?)
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
diff --git a/backend/windmill-worker/src/nu_executor.rs b/backend/windmill-worker/src/nu_executor.rs
index ca309105b5..28ac27c925 100644
--- a/backend/windmill-worker/src/nu_executor.rs
+++ b/backend/windmill-worker/src/nu_executor.rs
@@ -264,7 +264,7 @@ async fn run<'a>(
             .env("BASE_INTERNAL_URL", base_internal_url)
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Nu).await?)
+            .envs(get_proxy_envs_for_lang(&ScriptLang::Nu, &job.id, &job.workspace_id, conn).await?)
             .args(vec![
                 "--config",
                 "run.config.proto",
@@ -303,7 +303,7 @@ async fn run<'a>(
             .env("BASE_INTERNAL_URL", base_internal_url)
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Nu).await?)
+            .envs(get_proxy_envs_for_lang(&ScriptLang::Nu, &job.id, &job.workspace_id, conn).await?)
             // TODO(v1):
             // "--plugins",
             // &format!(
diff --git a/backend/windmill-worker/src/python_executor.rs b/backend/windmill-worker/src/python_executor.rs
index 619087659d..320bcb3e40 100644
--- a/backend/windmill-worker/src/python_executor.rs
+++ b/backend/windmill-worker/src/python_executor.rs
@@ -841,7 +841,10 @@ mount {{
             .env_clear()
             // inject PYTHONPATH here - for some reason I had to do it in nsjail conf
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Python3).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Python3, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
@@ -867,7 +870,10 @@ mount {{
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Python3).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Python3, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
diff --git a/backend/windmill-worker/src/ruby_executor.rs b/backend/windmill-worker/src/ruby_executor.rs
index 11031fa481..d283b2a1c4 100644
--- a/backend/windmill-worker/src/ruby_executor.rs
+++ b/backend/windmill-worker/src/ruby_executor.rs
@@ -812,7 +812,10 @@ mount {{
             .envs(envs)
             .envs(reserved_variables)
             .envs(RUBY_PROXY_ENVS.clone())
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Ruby).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Ruby, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .args(vec![
                 "--config",
                 "run.config.proto",
@@ -851,7 +854,10 @@ mount {{
             .env("BASE_INTERNAL_URL", base_internal_url)
             .envs(reserved_variables)
             .envs(RUBY_PROXY_ENVS.clone())
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Ruby).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Ruby, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .envs(envs);
 
         cmd.stdin(Stdio::null())
diff --git a/backend/windmill-worker/src/rust_executor.rs b/backend/windmill-worker/src/rust_executor.rs
index a1f29696c4..dae8e08766 100644
--- a/backend/windmill-worker/src/rust_executor.rs
+++ b/backend/windmill-worker/src/rust_executor.rs
@@ -700,7 +700,10 @@ pub async fn handle_rust_job(
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Rust).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Rust, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
@@ -716,7 +719,10 @@ pub async fn handle_rust_job(
             .env_clear()
             .envs(envs)
             .envs(reserved_variables)
-            .envs(get_proxy_envs_for_lang(&ScriptLang::Rust).await?)
+            .envs(
+                get_proxy_envs_for_lang(&ScriptLang::Rust, &job.id, &job.workspace_id, conn)
+                    .await?,
+            )
             .env("PATH", PATH_ENV.as_str())
             .env("TZ", TZ_ENV.as_str())
             .env("BASE_INTERNAL_URL", base_internal_url)
diff --git a/backend/windmill-worker/src/worker.rs b/backend/windmill-worker/src/worker.rs
index 4202064201..934b10f8f4 100644
--- a/backend/windmill-worker/src/worker.rs
+++ b/backend/windmill-worker/src/worker.rs
@@ -745,21 +745,37 @@ pub async fn is_otel_tracing_proxy_enabled_for_lang(lang: &ScriptLang) -> bool {
 /// Otherwise, uses the standard HTTP_PROXY/HTTPS_PROXY from environment.
 pub async fn get_proxy_envs_for_lang(
     lang: &ScriptLang,
+    job_id: &uuid::Uuid,
+    w_id: &str,
+    conn: &Connection,
 ) -> anyhow::Result<Vec<(&'static str, String)>> {
     #[cfg(all(feature = "private", feature = "enterprise"))]
     if is_otel_tracing_proxy_enabled_for_lang(lang).await {
-        return get_otel_tracing_proxy_envs().await;
+        return get_otel_tracing_proxy_envs(job_id, w_id, conn).await;
     }
-    let _ = lang;
+    let _ = (lang, job_id, w_id, conn);
     Ok(PROXY_ENVS.clone())
 }
 
 #[cfg(all(feature = "private", feature = "enterprise"))]
-async fn get_otel_tracing_proxy_envs() -> anyhow::Result<Vec<(&'static str, String)>> {
-    let port = crate::otel_tracing_proxy_ee::TRACING_PROXY_PORT
+async fn get_otel_tracing_proxy_envs(
+    job_id: &uuid::Uuid,
+    w_id: &str,
+    conn: &Connection,
+) -> anyhow::Result<Vec<(&'static str, String)>> {
+    let port = match *crate::otel_tracing_proxy_ee::TRACING_PROXY_PORT
         .read()
         .await
-        .ok_or_else(|| anyhow::anyhow!("OTEL tracing proxy port not initialized"))?;
+    {
+        Some(p) => p,
+        None => {
+            let reason = "OTEL tracing proxy is enabled but not available (not initialized yet, or NUM_WORKERS > 1). \
+                This job's HTTP requests will not be traced.";
+            tracing::warn!("{}", reason);
+            append_logs(job_id, w_id, format!("\n[warning] {reason}\n"), conn).await;
+            return Ok(PROXY_ENVS.clone());
+        }
+    };
     let proxy_url = format!("http://127.0.0.1:{}", port);
     Ok(vec![
         ("HTTP_PROXY", proxy_url.clone()),