diff --git a/backend/.golangci.yml b/backend/.golangci.yml
new file mode 100644
index 0000000..fc10ed9
--- /dev/null
+++ b/backend/.golangci.yml
@@ -0,0 +1,66 @@
+version: "2"
+run:
+  go: "1.25"
+  tests: true
+linters:
+  enable:
+    - bodyclose
+    - dupl
+    - exhaustive
+    - goconst
+    - gocyclo
+    - gosec
+    - lll
+    - misspell
+    - noctx
+    - prealloc
+    - unconvert
+  settings:
+    dupl:
+      threshold: 150
+    goconst:
+      min-len: 3
+      min-occurrences: 3
+    gocyclo:
+      min-complexity: 15
+    gosec:
+      excludes:
+        - G104 # Unhandled errors (we use errcheck)
+    lll:
+      line-length: 120
+    misspell:
+      locale: US
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    rules:
+      - linters:
+          - dupl
+          - errcheck
+          - gocyclo
+          - gosec
+        path: _test\.go
+      - linters:
+          - gocyclo
+        path: cmd/main\.go
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+issues:
+  max-issues-per-linter: 50
+  max-same-issues: 10
+formatters:
+  enable:
+    - gofmt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$