diff --git a/.woodpecker/bff.yml b/.woodpecker/bff.yml
index 63cef64a..0a656f5b 100644
--- a/.woodpecker/bff.yml
+++ b/.woodpecker/bff.yml
@@ -44,6 +44,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh bff
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -64,7 +72,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/bff/build-image.sh
 
diff --git a/.woodpecker/billing_documents.yml b/.woodpecker/billing_documents.yml
index 38f67056..993ae421 100644
--- a/.woodpecker/billing_documents.yml
+++ b/.woodpecker/billing_documents.yml
@@ -40,6 +40,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh billing_documents
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -60,7 +68,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/billing_documents/build-image.sh
 
diff --git a/.woodpecker/billing_fees.yml b/.woodpecker/billing_fees.yml
index 10e303e5..4665426c 100644
--- a/.woodpecker/billing_fees.yml
+++ b/.woodpecker/billing_fees.yml
@@ -40,6 +40,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh billing_fees
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -60,7 +68,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/billing_fees/build-image.sh
 
diff --git a/.woodpecker/discovery.yml b/.woodpecker/discovery.yml
index 9cd58c4f..e50d8ee1 100644
--- a/.woodpecker/discovery.yml
+++ b/.woodpecker/discovery.yml
@@ -39,6 +39,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh discovery
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -59,7 +67,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/discovery/build-image.sh
 
diff --git a/.woodpecker/fx_ingestor.yml b/.woodpecker/fx_ingestor.yml
index b063fb6d..f815324e 100644
--- a/.woodpecker/fx_ingestor.yml
+++ b/.woodpecker/fx_ingestor.yml
@@ -45,6 +45,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh fx_ingestor
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -65,7 +73,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/fx/build-image.sh
 
diff --git a/.woodpecker/fx_oracle.yml b/.woodpecker/fx_oracle.yml
index 38fb8e63..39e498dd 100644
--- a/.woodpecker/fx_oracle.yml
+++ b/.woodpecker/fx_oracle.yml
@@ -46,6 +46,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh fx_oracle
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -66,7 +74,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/fx/build-image.sh
 
diff --git a/.woodpecker/gateway_chain.yml b/.woodpecker/gateway_chain.yml
index d8103392..aa13ae7b 100644
--- a/.woodpecker/gateway_chain.yml
+++ b/.woodpecker/gateway_chain.yml
@@ -43,6 +43,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh gateway_chain
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -63,7 +71,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/chain_gateway/build-image.sh
 
diff --git a/.woodpecker/gateway_mntx.yml b/.woodpecker/gateway_mntx.yml
index f5de3e00..bc7ba934 100644
--- a/.woodpecker/gateway_mntx.yml
+++ b/.woodpecker/gateway_mntx.yml
@@ -42,6 +42,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh gateway_mntx
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -62,7 +70,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/mntx/build-image.sh
 
diff --git a/.woodpecker/gateway_tgsettle.yml b/.woodpecker/gateway_tgsettle.yml
index ef9c5cd6..63db1e1a 100644
--- a/.woodpecker/gateway_tgsettle.yml
+++ b/.woodpecker/gateway_tgsettle.yml
@@ -40,6 +40,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh gateway_tgsettle
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -60,7 +68,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/tgsettle/build-image.sh
 
diff --git a/.woodpecker/gateway_tron.yml b/.woodpecker/gateway_tron.yml
index 958e7a69..576bc07d 100644
--- a/.woodpecker/gateway_tron.yml
+++ b/.woodpecker/gateway_tron.yml
@@ -43,6 +43,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh gateway_tron
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -63,7 +71,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/tron_gateway/build-image.sh
 
diff --git a/.woodpecker/ledger.yml b/.woodpecker/ledger.yml
index b0d7fdc6..97b75c67 100644
--- a/.woodpecker/ledger.yml
+++ b/.woodpecker/ledger.yml
@@ -40,6 +40,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh ledger
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -60,7 +68,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/ledger/build-image.sh
 
diff --git a/.woodpecker/notification.yml b/.woodpecker/notification.yml
index 761859eb..86567941 100644
--- a/.woodpecker/notification.yml
+++ b/.woodpecker/notification.yml
@@ -43,6 +43,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh notification
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -63,7 +71,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/notification/build-image.sh
 
diff --git a/.woodpecker/payments_methods.yml b/.woodpecker/payments_methods.yml
index 7c237649..79bf8309 100644
--- a/.woodpecker/payments_methods.yml
+++ b/.woodpecker/payments_methods.yml
@@ -40,6 +40,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh payments_methods
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -60,7 +68,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/payments_methods/build-image.sh
 
diff --git a/.woodpecker/payments_orchestrator.yml b/.woodpecker/payments_orchestrator.yml
index 7558af26..d78489c8 100644
--- a/.woodpecker/payments_orchestrator.yml
+++ b/.woodpecker/payments_orchestrator.yml
@@ -40,6 +40,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh payments_orchestrator
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -60,7 +68,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/payments_orchestrator/build-image.sh
 
diff --git a/.woodpecker/payments_quotation.yml b/.woodpecker/payments_quotation.yml
index 0b328ee5..83710779 100644
--- a/.woodpecker/payments_quotation.yml
+++ b/.woodpecker/payments_quotation.yml
@@ -42,6 +42,14 @@ steps:
       - export PATH="$(go env GOPATH)/bin:$PATH"
       - bash ci/scripts/proto/generate.sh
 
+  - name: backend-tests
+    image: golang:alpine
+    depends_on: [ proto ]
+    commands:
+      - set -eu
+      - apk add --no-cache bash git build-base
+      - sh ci/scripts/common/run_backend_tests.sh payments_quotation
+
   - name: secrets
     image: alpine:latest
     depends_on: [ version ]
@@ -62,7 +70,7 @@ steps:
 
   - name: build-image
     image: gcr.io/kaniko-project/executor:debug
-    depends_on: [ proto, secrets ]
+    depends_on: [ backend-tests, secrets ]
     commands:
       - sh ci/scripts/payments_quotation/build-image.sh
 
diff --git a/ci/scripts/common/run_backend_tests.sh b/ci/scripts/common/run_backend_tests.sh
new file mode 100755
index 00000000..ce13c26c
--- /dev/null
+++ b/ci/scripts/common/run_backend_tests.sh
@@ -0,0 +1,135 @@
+#!/usr/bin/env bash
+set -eu
+
+if ! set -o pipefail 2>/dev/null; then
+  :
+fi
+
+SERVICE="${1:-}"
+if [ -z "${SERVICE}" ]; then
+  echo "usage: $0 <service-key>" >&2
+  exit 2
+fi
+
+REPO_ROOT="$(cd "$(dirname "$0")/../../.." && pwd)"
+cd "${REPO_ROOT}"
+
+run_go_tests() {
+  module="$1"
+  if [ ! -f "${module}/go.mod" ]; then
+    echo "[backend-tests] missing go.mod for module: ${module}" >&2
+    exit 1
+  fi
+
+  echo "[backend-tests] running go test ./... in ${module}"
+  (
+    cd "${module}"
+    go test ./...
+  )
+}
+
+case "${SERVICE}" in
+  bff)
+    modules="
+api/pkg
+api/server
+"
+    ;;
+  billing_documents)
+    modules="
+api/pkg
+api/billing/documents
+"
+    ;;
+  billing_fees)
+    modules="
+api/pkg
+api/billing/fees
+"
+    ;;
+  discovery)
+    modules="
+api/pkg
+api/discovery
+"
+    ;;
+  fx_ingestor)
+    modules="
+api/pkg
+api/fx/storage
+api/fx/ingestor
+"
+    ;;
+  fx_oracle)
+    modules="
+api/pkg
+api/fx/storage
+api/fx/oracle
+"
+    ;;
+  gateway_chain)
+    modules="
+api/pkg
+api/gateway/chain
+"
+    ;;
+  gateway_mntx)
+    modules="
+api/pkg
+api/gateway/mntx
+"
+    ;;
+  gateway_tgsettle)
+    modules="
+api/pkg
+api/gateway/tgsettle
+"
+    ;;
+  gateway_tron)
+    modules="
+api/pkg
+api/gateway/tron
+"
+    ;;
+  ledger)
+    modules="
+api/pkg
+api/ledger
+"
+    ;;
+  notification)
+    modules="
+api/pkg
+api/notification
+"
+    ;;
+  payments_methods)
+    modules="
+api/pkg
+api/payments/storage
+api/payments/methods
+"
+    ;;
+  payments_orchestrator)
+    modules="
+api/pkg
+api/payments/storage
+api/payments/orchestrator
+"
+    ;;
+  payments_quotation)
+    modules="
+api/pkg
+api/payments/storage
+api/payments/quotation
+"
+    ;;
+  *)
+    echo "[backend-tests] unknown service key: ${SERVICE}" >&2
+    exit 2
+    ;;
+esac
+
+for module in ${modules}; do
+  run_go_tests "${module}"
+done