diff --git a/.evergreen-functions.yml b/.evergreen-functions.yml
index 3a7ee39b8..760131617 100644
--- a/.evergreen-functions.yml
+++ b/.evergreen-functions.yml
@@ -77,19 +77,15 @@ functions:
         echo "Finished initializing to the root context"
 
   switch_context: &switch_context
-    command: shell.exec
+    command: subprocess.exec
     type: setup
     params:
-      shell: bash
       working_dir: src/github.com/mongodb/mongodb-kubernetes
       <<: *e2e_include_expansions_in_env
       add_to_path:
         - ${workdir}/bin
         - ${workdir}/google-cloud-sdk/bin
-      script: |
-        echo "Switching context"
-        scripts/dev/switch_context.sh "${build_variant}"
-        echo "Finished switching context"
+      command: scripts/dev/switch_context.sh "${build_variant}"
 
   python_venv: &python_venv
     command: subprocess.exec
@@ -249,7 +245,7 @@ functions:
       working_dir: src/github.com/mongodb/mongodb-kubernetes
       add_to_path:
         - ${workdir}/bin
-      command: scripts/dev/setup_chart_testing_cli.sh  
+      command: scripts/dev/setup_chart_testing_cli.sh
 
   lint_repo:
     - command: subprocess.exec
@@ -305,7 +301,6 @@ functions:
   # the task configures the set of tools necessary for any task working with K8 cluster:
   # installs kubectl, jq, kind (if necessary), configures docker authentication
   download_kube_tools:
-    - *switch_context
     - *setup_kubectl
     - *setup_jq
     # we need aws to configure docker authentication
diff --git a/scripts/dev/contexts/e2e_mdb_kind_ubi_cloudqa b/scripts/dev/contexts/e2e_mdb_kind_ubi_cloudqa
index 886ecb8be..f230f6d2a 100644
--- a/scripts/dev/contexts/e2e_mdb_kind_ubi_cloudqa
+++ b/scripts/dev/contexts/e2e_mdb_kind_ubi_cloudqa
@@ -11,7 +11,7 @@ export ops_manager_version="cloud_qa"
 
 # This is required to be able to rebuild the om image and use that image which has been rebuilt
 export OPS_MANAGER_REGISTRY="${BASE_REPO_URL}"
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 
 export CUSTOM_MDB_VERSION=6.0.5
diff --git a/scripts/dev/contexts/e2e_smoke_ibm_power b/scripts/dev/contexts/e2e_smoke_ibm_power
index 77c1cf549..50047fbdc 100644
--- a/scripts/dev/contexts/e2e_smoke_ibm_power
+++ b/scripts/dev/contexts/e2e_smoke_ibm_power
@@ -10,5 +10,5 @@ source "${script_dir}/variables/e2e_ibm_smoke_base"
 
 # This is required to be able to rebuild the om image and use that image which has been rebuilt
 export OPS_MANAGER_REGISTRY=268558157000.dkr.ecr.us-east-1.amazonaws.com/dev
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
diff --git a/scripts/dev/contexts/e2e_smoke_ibm_z b/scripts/dev/contexts/e2e_smoke_ibm_z
index 77c1cf549..50047fbdc 100644
--- a/scripts/dev/contexts/e2e_smoke_ibm_z
+++ b/scripts/dev/contexts/e2e_smoke_ibm_z
@@ -10,5 +10,5 @@ source "${script_dir}/variables/e2e_ibm_smoke_base"
 
 # This is required to be able to rebuild the om image and use that image which has been rebuilt
 export OPS_MANAGER_REGISTRY=268558157000.dkr.ecr.us-east-1.amazonaws.com/dev
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
diff --git a/scripts/dev/contexts/e2e_static_mdb_kind_ubi_cloudqa b/scripts/dev/contexts/e2e_static_mdb_kind_ubi_cloudqa
index f4fe1ebdb..9188ba8af 100644
--- a/scripts/dev/contexts/e2e_static_mdb_kind_ubi_cloudqa
+++ b/scripts/dev/contexts/e2e_static_mdb_kind_ubi_cloudqa
@@ -12,7 +12,7 @@ export MDB_DEFAULT_ARCHITECTURE=static
 
 # This is required to be able to rebuild the om image and use that image which has been rebuilt
 export OPS_MANAGER_REGISTRY="${BASE_REPO_URL}"
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 
 export CUSTOM_MDB_PREV_VERSION=6.0.16
diff --git a/scripts/dev/contexts/e2e_static_smoke_arm b/scripts/dev/contexts/e2e_static_smoke_arm
index 65f0c3dfe..00976ea0d 100644
--- a/scripts/dev/contexts/e2e_static_smoke_arm
+++ b/scripts/dev/contexts/e2e_static_smoke_arm
@@ -11,7 +11,7 @@ export ops_manager_version="cloud_qa"
 
 # This is required to be able to rebuild the om image and use that image which has been rebuilt
 export OPS_MANAGER_REGISTRY=268558157000.dkr.ecr.us-east-1.amazonaws.com/dev
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 
 export CUSTOM_MDB_VERSION=7.0.22 # we only have ibm static images starting with 7.0.22
diff --git a/scripts/dev/contexts/e2e_static_smoke_ibm_power b/scripts/dev/contexts/e2e_static_smoke_ibm_power
index d31b03fd0..bb4d2a8ca 100644
--- a/scripts/dev/contexts/e2e_static_smoke_ibm_power
+++ b/scripts/dev/contexts/e2e_static_smoke_ibm_power
@@ -10,7 +10,7 @@ source "${script_dir}/variables/e2e_ibm_smoke_base"
 
 # This is required to be able to rebuild the om image and use that image which has been rebuilt
 export OPS_MANAGER_REGISTRY=268558157000.dkr.ecr.us-east-1.amazonaws.com/dev
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 export MDB_DEFAULT_ARCHITECTURE=static
 # MDB supports ppc64le on RHEL9 only from 8.0.12 onwards
diff --git a/scripts/dev/contexts/e2e_static_smoke_ibm_z b/scripts/dev/contexts/e2e_static_smoke_ibm_z
index aeaa8423d..9acff493a 100644
--- a/scripts/dev/contexts/e2e_static_smoke_ibm_z
+++ b/scripts/dev/contexts/e2e_static_smoke_ibm_z
@@ -10,7 +10,7 @@ source "${script_dir}/variables/e2e_ibm_smoke_base"
 
 # This is required to be able to rebuild the om image and use that image which has been rebuilt
 export OPS_MANAGER_REGISTRY=268558157000.dkr.ecr.us-east-1.amazonaws.com/dev
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 export MDB_DEFAULT_ARCHITECTURE=static
 # MDB supports s390x on RHEL9 only from 8.0.12 onwards
diff --git a/scripts/dev/contexts/funcs/gke b/scripts/dev/contexts/funcs/gke
index 11df26f85..658349337 100644
--- a/scripts/dev/contexts/funcs/gke
+++ b/scripts/dev/contexts/funcs/gke
@@ -1,3 +1,7 @@
+#!/usr/bin/env bash
+
+set -Eeou pipefail
+
 # Function to normalize identifier to contain only alphanumeric characters.
 # It's also cutting the string in the middle if exceeds max_len.
 # Example:
diff --git a/scripts/dev/contexts/variables/om60 b/scripts/dev/contexts/variables/om60
index e2e77e3ab..82927dd87 100644
--- a/scripts/dev/contexts/variables/om60
+++ b/scripts/dev/contexts/variables/om60
@@ -2,12 +2,9 @@
 
 set -Eeou pipefail
 
-script_name=$(readlink -f "${BASH_SOURCE[0]}")
-script_dir=$(dirname "${script_name}")
-
 CUSTOM_OM_PREV_VERSION=6.0.0
 export CUSTOM_OM_PREV_VERSION
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_60_latest\s+(\S+)\s+#" <"${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_60_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 
 export CUSTOM_MDB_VERSION=6.0.21
diff --git a/scripts/dev/contexts/variables/om60_image b/scripts/dev/contexts/variables/om60_image
index 1c4ee1ae6..6a2488d51 100644
--- a/scripts/dev/contexts/variables/om60_image
+++ b/scripts/dev/contexts/variables/om60_image
@@ -2,8 +2,5 @@
 
 set -Eeou pipefail
 
-script_name=$(readlink -f "${BASH_SOURCE[0]}")
-script_dir=$(dirname "${script_name}")
-
-om_version=$(grep -E "^\s*-\s*&ops_manager_60_latest\s+(\S+)\s+#" < "${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+om_version=$(grep -E "^\s*-\s*&ops_manager_60_latest\s+(\S+)\s+#" < "${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export om_version
diff --git a/scripts/dev/contexts/variables/om70 b/scripts/dev/contexts/variables/om70
index c0c8b0eb7..114fbe533 100644
--- a/scripts/dev/contexts/variables/om70
+++ b/scripts/dev/contexts/variables/om70
@@ -2,12 +2,9 @@
 
 set -Eeou pipefail
 
-script_name=$(readlink -f "${BASH_SOURCE[0]}")
-script_dir=$(dirname "${script_name}")
-
-CUSTOM_OM_PREV_VERSION=$(grep -E "^\s*-\s*&ops_manager_60_latest\s+(\S+)\s+#" <"${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_PREV_VERSION=$(grep -E "^\s*-\s*&ops_manager_60_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_PREV_VERSION
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" <"${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 
 export CUSTOM_MDB_VERSION=7.0.18
diff --git a/scripts/dev/contexts/variables/om70_image b/scripts/dev/contexts/variables/om70_image
index 108fe158e..aec42bb8a 100644
--- a/scripts/dev/contexts/variables/om70_image
+++ b/scripts/dev/contexts/variables/om70_image
@@ -2,8 +2,5 @@
 
 set -Eeou pipefail
 
-script_name=$(readlink -f "${BASH_SOURCE[0]}")
-script_dir=$(dirname "${script_name}")
-
-om_version=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" < "${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+om_version=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" < "${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export om_version
diff --git a/scripts/dev/contexts/variables/om80 b/scripts/dev/contexts/variables/om80
index f0b677d90..3b4a2db54 100644
--- a/scripts/dev/contexts/variables/om80
+++ b/scripts/dev/contexts/variables/om80
@@ -2,12 +2,9 @@
 
 set -Eeou pipefail
 
-script_name=$(readlink -f "${BASH_SOURCE[0]}")
-script_dir=$(dirname "${script_name}")
-
-CUSTOM_OM_PREV_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" < "${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_PREV_VERSION=$(grep -E "^\s*-\s*&ops_manager_70_latest\s+(\S+)\s+#" < "${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_PREV_VERSION
-CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_80_latest\s+(\S+)\s+#" < "${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+CUSTOM_OM_VERSION=$(grep -E "^\s*-\s*&ops_manager_80_latest\s+(\S+)\s+#" < "${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export CUSTOM_OM_VERSION
 
 export CUSTOM_MDB_VERSION=8.0.6
diff --git a/scripts/dev/contexts/variables/om80_image b/scripts/dev/contexts/variables/om80_image
index 7821d0b01..2931aa8f6 100644
--- a/scripts/dev/contexts/variables/om80_image
+++ b/scripts/dev/contexts/variables/om80_image
@@ -2,10 +2,7 @@
 
 set -Eeou pipefail
 
-script_name=$(readlink -f "${BASH_SOURCE[0]}")
-script_dir=$(dirname "${script_name}")
-
-om_version=$(grep -E "^\s*-\s*&ops_manager_80_latest\s+(\S+)\s+#" < "${script_dir}"/../../../../.evergreen.yml | awk '{print $3}')
+om_version=$(grep -E "^\s*-\s*&ops_manager_80_latest\s+(\S+)\s+#" < "${PROJECT_DIR}"/.evergreen.yml | awk '{print $3}')
 export om_version
 
 export om_download_url