diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6edfc2d3a..02f91de83 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1371,6 +1371,13 @@ workflows:
           binary_type: native
           # NOTE: Tests crash on nodejs 17: "Error: error:0308010C:digital envelope routines::unsupported"
           nodejs_version: '16'
+      - t_ems_ext:
+          <<: *workflow_ubuntu2004_static
+          name: t_native_test_ext_trident
+          project: trident
+          binary_type: native
+          # NOTE: Tests crash on nodejs 17: "Error: error:0308010C:digital envelope routines::unsupported"
+          nodejs_version: '16'
 
       # Windows build and tests
       - b_win: *workflow_trigger_on_tags
diff --git a/test/externalTests.sh b/test/externalTests.sh
index 86f13401e..846cdf515 100755
--- a/test/externalTests.sh
+++ b/test/externalTests.sh
@@ -42,3 +42,4 @@ printTask "Running external tests..."
 "$REPO_ROOT/externalTests/gnosis-v2.sh" "$@"
 "$REPO_ROOT/externalTests/colony.sh" "$@"
 "$REPO_ROOT/externalTests/ens.sh" "$@"
+"$REPO_ROOT/externalTests/trident.sh" "$@"
diff --git a/test/externalTests/trident.sh b/test/externalTests/trident.sh
new file mode 100755
index 000000000..379af8cc1
--- /dev/null
+++ b/test/externalTests/trident.sh
@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+
+# ------------------------------------------------------------------------------
+# This file is part of solidity.
+#
+# solidity is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# solidity is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with solidity.  If not, see <http://www.gnu.org/licenses/>
+#
+# (c) 2021 solidity contributors.
+#------------------------------------------------------------------------------
+
+set -e
+
+source scripts/common.sh
+source test/externalTests/common.sh
+
+verify_input "$@"
+BINARY_TYPE="$1"
+BINARY_PATH="$2"
+
+function compile_fn { yarn build; }
+
+function test_fn {
+    # shellcheck disable=SC2046
+    TS_NODE_TRANSPILE_ONLY=1 npx hardhat test --no-compile $(
+        # TODO: We need to skip Migration.test.ts because it fails and makes other tests fail too.
+        # Replace this with `yarn test` once https://github.com/sushiswap/trident/issues/283 is fixed.
+        find test/ -name "*.test.ts" ! -path "test/Migration.test.ts"
+    )
+}
+
+function trident_test
+{
+    # TODO: Switch to https://github.com/sushiswap/trident / master once
+    # https://github.com/sushiswap/trident/pull/282 gets merged.
+    local repo="https://github.com/solidity-external-tests/trident.git"
+    local branch=master_080
+    local config_file="hardhat.config.ts"
+    local config_var=config
+
+    local compile_only_presets=()
+    local settings_presets=(
+        "${compile_only_presets[@]}"
+        #ir-no-optimize            # Compilation fails with: "YulException: Variable var_amount_165 is 9 slot(s) too deep inside the stack."
+        #ir-optimize-evm-only      # Compilation fails with: "YulException: Variable var_amount_165 is 9 slot(s) too deep inside the stack."
+        #ir-optimize-evm+yul       # Compilation fails with: "YulException: Cannot swap Variable var_nearestTick with Variable _4: too deep in the stack by 4 slots"
+        legacy-no-optimize
+        legacy-optimize-evm-only
+        legacy-optimize-evm+yul
+    )
+
+    local selected_optimizer_presets
+    selected_optimizer_presets=$(circleci_select_steps_multiarg "${settings_presets[@]}")
+    print_optimizer_presets_or_exit "$selected_optimizer_presets"
+
+    setup_solc "$DIR" "$BINARY_TYPE" "$BINARY_PATH"
+    download_project "$repo" "$branch" "$DIR"
+
+    # TODO: Currently tests work only with the exact versions from yarn.lock.
+    # Re-enable this when https://github.com/sushiswap/trident/issues/284 is fixed.
+    #neutralize_package_lock
+
+    neutralize_package_json_hooks
+    force_hardhat_compiler_binary "$config_file" "$BINARY_TYPE" "$BINARY_PATH"
+    force_hardhat_compiler_settings "$config_file" "$(first_word "$selected_optimizer_presets")" "$config_var"
+    yarn install
+
+    replace_version_pragmas
+    force_solc_modules "${DIR}/solc"
+
+    # @sushiswap/core package contains contracts that get built with 0.6.12 and fail our compiler
+    # version check. It's not used by tests so we can remove it.
+    rm -r node_modules/@sushiswap/core/
+
+    for preset in $selected_optimizer_presets; do
+        hardhat_run_test "$config_file" "$preset" "${compile_only_presets[*]}" compile_fn test_fn "$config_var"
+    done
+}
+
+external_test Trident trident_test