diff --git a/.github/workflows/prs_and_commits.yml b/.github/workflows/prs_and_commits.yml
new file mode 100644
index 0000000..eab018b
--- /dev/null
+++ b/.github/workflows/prs_and_commits.yml
@@ -0,0 +1,46 @@
+# Workflow to check pull requests and new commits to main branches
+# This checks the source in the state as if after the merge.
+name: Pull request checks
+on:
+  pull_request:
+    branches: [ master, storage-write-api, storage-write-api-cleanup ]
+  push:
+    branches: [ master, storage-write-api, storage-write-api-cleanup ]
+
+# Disallow concurrent runs for the same PR by cancelling in-progress runs
+# when new commits are pushed
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Set up JDK 8
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'adopt'
+          java-version: 8
+          cache: maven
+      - name: Build (Maven)
+        run: mvn --batch-mode clean package -DskipTests
+      - name: Unit tests (Maven)
+        run: mvn --batch-mode test
+      - name: Integration tests (Maven)
+        env:
+          # Necessary for client builder integration tests that run with
+          # default application credentials
+          CREDENTIALS_JSON: ${{ secrets.GCP_CREDENTIALS }}
+          GOOGLE_APPLICATION_CREDENTIALS: /tmp/creds.json
+          KCBQ_TEST_KEYFILE:    /tmp/creds.json
+          KCBQ_TEST_KEY_SOURCE: FILE
+          KCBQ_TEST_PROJECT:    ${{ secrets.KCBQ_TEST_PROJECT }}
+          KCBQ_TEST_DATASET:    ${{ secrets.KCBQ_TEST_DATASET }}
+          KCBQ_TEST_BUCKET:     ${{ secrets.KCBQ_TEST_BUCKET }}
+        run: |
+          echo "$CREDENTIALS_JSON" > /tmp/creds.json
+          mvn -Dskip.unit.tests=true verify
diff --git a/kcbq-connector/pom.xml b/kcbq-connector/pom.xml
index d29b628..a912566 100644
--- a/kcbq-connector/pom.xml
+++ b/kcbq-connector/pom.xml
@@ -126,100 +126,6 @@
 
     <build>
         <plugins>
-            <plugin>
-                <groupId>org.jacoco</groupId>
-                <artifactId>jacoco-maven-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <id>prepare-agent</id>
-                        <goals>
-                            <goal>prepare-agent</goal>
-                        </goals>
-                    </execution>
-                    <execution>
-                        <id>prepare-agent-it</id>
-                        <goals>
-                            <goal>prepare-agent-integration</goal>
-                        </goals>
-                        <phase>pre-integration-test</phase>
-                    </execution>
-                    <execution>
-                        <id>merge-coverage-reports</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>merge</goal>
-                        </goals>
-                        <configuration>
-                            <fileSets>
-                                <fileSet>
-                                    <directory>${project.basedir}</directory>
-                                    <includes>
-                                        <include>/target/jacoco.exec</include>
-                                        <include>/target/jacoco-it.exec</include>
-                                    </includes>
-                                </fileSet>
-                            </fileSets>
-                            <destFile>${project.basedir}/target/jacoco-aggregate.exec</destFile>
-                        </configuration>
-                    </execution>
-                    <execution>
-                        <id>check</id>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                        <configuration>
-                            <rules>
-                                <rule>
-                                    <element>BUNDLE</element>
-                                    <limits>
-                                        <limit>
-                                            <counter>INSTRUCTION</counter>
-                                            <value>COVEREDRATIO</value>
-                                            <minimum>0.60</minimum>
-                                        </limit>
-                                        <limit>
-                                            <counter>BRANCH</counter>
-                                            <value>COVEREDRATIO</value>
-                                            <minimum>0.45</minimum>
-                                        </limit>
-                                        <limit>
-                                            <counter>COMPLEXITY</counter>
-                                            <value>COVEREDRATIO</value>
-                                            <minimum>0.60</minimum>
-                                        </limit>
-                                        <limit>
-                                            <counter>LINE</counter>
-                                            <value>COVEREDRATIO</value>
-                                            <minimum>0.60</minimum>
-                                        </limit>
-                                        <limit>
-                                            <counter>METHOD</counter>
-                                            <value>COVEREDRATIO</value>
-                                            <minimum>0.60</minimum>
-                                        </limit>
-                                        <limit>
-                                            <counter>CLASS</counter>
-                                            <value>COVEREDRATIO</value>
-                                            <minimum>0.80</minimum>
-                                        </limit>
-                                    </limits>
-                                </rule>
-                            </rules>
-                            <dataFile>${project.basedir}/target/jacoco-aggregate.exec</dataFile>
-                        </configuration>
-                    </execution>
-                    <execution>
-                        <id>report</id>
-                        <phase>test</phase>
-                        <goals>
-                            <goal>report</goal>
-                        </goals>
-                        <configuration>
-                            <dataFile>${project.basedir}/target/jacoco-aggregate.exec</dataFile>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
@@ -232,10 +138,6 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-failsafe-plugin</artifactId>
             </plugin>
-            <plugin>
-                <groupId>org.jacoco</groupId>
-                <artifactId>jacoco-maven-plugin</artifactId>
-            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
diff --git a/kcbq-connector/src/test/java/com/wepay/kafka/connect/bigquery/integration/BaseConnectorIT.java b/kcbq-connector/src/test/java/com/wepay/kafka/connect/bigquery/integration/BaseConnectorIT.java
index 062b4f5..91c086a 100644
--- a/kcbq-connector/src/test/java/com/wepay/kafka/connect/bigquery/integration/BaseConnectorIT.java
+++ b/kcbq-connector/src/test/java/com/wepay/kafka/connect/bigquery/integration/BaseConnectorIT.java
@@ -366,10 +366,12 @@ private String readEnvVar(String var, String defaultVal) {
 
   protected String keyFile() {
     if (GcpClientBuilder.KeySource.APPLICATION_DEFAULT.name().equalsIgnoreCase(keySource())) {
-      // No key file necessary
-      return "";
+      // Key file is optional for most tests when using application default credentials
+      return readEnvVar(KEYFILE_ENV_VAR, "");
+    } else {
+      // Key file is required
+      return readEnvVar(KEYFILE_ENV_VAR);
     }
-    return readEnvVar(KEYFILE_ENV_VAR);
   }
 
   protected String project() {
diff --git a/pom.xml b/pom.xml
index d413c19..675bfbc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,7 +52,6 @@
         <checkstyle.plugin.version>3.3.1</checkstyle.plugin.version>
         <compiler.plugin.version>3.8.1</compiler.plugin.version>
         <google.cloud.bom.version>26.14.0</google.cloud.bom.version>
-        <jacoco.plugin.version>0.8.5</jacoco.plugin.version>
         <kafka.connect.plugin.version>0.11.1</kafka.connect.plugin.version>
         <release.plugin.version>2.5.3</release.plugin.version>
         <site.plugin.version>3.7.1</site.plugin.version>
@@ -378,26 +377,6 @@ under the License.
                         </execution>
                     </executions>
                 </plugin>
-                <plugin>
-                    <groupId>org.jacoco</groupId>
-                    <artifactId>jacoco-maven-plugin</artifactId>
-                    <version>${jacoco.plugin.version}</version>
-                    <executions>
-                        <execution>
-                            <id>pre-unit-test</id>
-                            <goals>
-                                <goal>prepare-agent</goal>
-                            </goals>
-                        </execution>
-                        <execution>
-                            <id>report</id>
-                            <phase>verify</phase>
-                            <goals>
-                                <goal>report</goal>
-                            </goals>
-                        </execution>
-                    </executions>
-                </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-checkstyle-plugin</artifactId>