diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1dc6e57..f717dfe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,19 +54,14 @@ jobs:
         working-directory: log/native
         run: cargo build --release
 
-      - name: Set up Java 17
+      - name: Set up Java 24
         uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '24'
           distribution: 'temurin'
 
-      - name: Cache Maven local repository
-        uses: actions/cache@v4
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
 
-      - name: Maven build and test
-        run: mvn verify -Djava.library.path=log/native/target/release
+      - name: Gradle build and test
+        run: ./gradlew build
diff --git a/.gitignore b/.gitignore
index bd9fc00..73b2490 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,13 +6,16 @@
 # Rust build artifacts
 target/
 
+# Gradle
+.gradle/
+build/
+
 # Java build artifacts
 *.class
 *.jar
+!gradle/wrapper/gradle-wrapper.jar
 *.war
 *.ear
-log/target/
-benchmark-driver/target/
 
 # Benchmark results
 *.json
diff --git a/AGENTS.md b/AGENTS.md
index c44f587..c88c783 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -31,7 +31,8 @@ opendata-java/
 │       ├── LogDbReader.java        # Read-only API
 │       ├── LogDbConfig.java        # Configuration record
 │       └── ...
-└── pom.xml                         # Maven multi-module build
+├── build.gradle                    # Gradle multi-module build
+└── settings.gradle
 ```
 
 ## JNI Architecture
@@ -92,8 +93,7 @@ The JNI layer prepends an 8-byte timestamp to values for latency measurement:
 ### Prerequisites
 
 - Rust stable toolchain
-- Java 17+
-- Maven 3.8+
+- Java 24+
 - Sibling clone of `opendata` repository
 
 ### Building
@@ -103,9 +103,9 @@ The JNI layer prepends an 8-byte timestamp to values for latency measurement:
 cd log/native
 cargo build --release
 
-# Build and install Java modules
+# Build Java modules
 cd ../..
-mvn clean install
+./gradlew build
 ```
 
 ### Testing
@@ -116,7 +116,7 @@ cd log/native
 cargo test
 
 # Java tests (requires native library)
-mvn test -Djava.library.path=log/native/target/release
+./gradlew test
 ```
 
 ### Formatting and Linting
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index cbe6c7c..3a003af 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -50,8 +50,7 @@ Open an issue describing:
 ### Prerequisites
 
 - Rust stable toolchain ([rustup](https://rustup.rs/))
-- Java 17+ ([SDKMAN](https://sdkman.io/) recommended)
-- Maven 3.8+
+- Java 24+ ([SDKMAN](https://sdkman.io/) recommended)
 - Git
 - Local clone of [opendata](https://github.com/opendata-oss/opendata) as sibling directory
 
@@ -72,7 +71,7 @@ cargo build --release
 
 # Build Java modules
 cd ../..
-mvn clean install -DskipTests
+./gradlew build
 ```
 
 ## Code Style
@@ -154,7 +153,7 @@ cd log/native
 cargo test
 
 # Java tests (requires native library built)
-mvn test -Djava.library.path=log/native/target/release
+./gradlew test
 ```
 
 ## Pull Request Process
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..e8e7424
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,38 @@
+subprojects {
+    apply plugin: 'java-library'
+
+    group = 'dev.opendata'
+    version = '0.1.0-SNAPSHOT'
+
+    def minimumJava = 24
+    def currentJava = JavaVersion.current()
+    def toolchainVersion = currentJava.isCompatibleWith(JavaVersion.toVersion(minimumJava))
+        ? Integer.parseInt(currentJava.majorVersion)
+        : minimumJava
+
+    java {
+        toolchain {
+            languageVersion = JavaLanguageVersion.of(toolchainVersion)
+        }
+        sourceCompatibility = JavaVersion.toVersion(minimumJava)
+        targetCompatibility = JavaVersion.toVersion(minimumJava)
+    }
+
+    tasks.withType(JavaCompile).configureEach {
+        options.release = minimumJava
+    }
+
+    repositories {
+        mavenCentral()
+    }
+
+    dependencies {
+        testImplementation 'org.junit.jupiter:junit-jupiter:5.10.2'
+        testImplementation 'org.assertj:assertj-core:3.25.3'
+        testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.10.2'
+    }
+
+    test {
+        useJUnitPlatform()
+    }
+}
diff --git a/common/build.gradle b/common/build.gradle
new file mode 100644
index 0000000..7aedabc
--- /dev/null
+++ b/common/build.gradle
@@ -0,0 +1,2 @@
+// Common utilities for OpenData Java bindings
+// Dependencies are configured in the root build.gradle
diff --git a/common/pom.xml b/common/pom.xml
deleted file mode 100644
index ce5bf47..0000000
--- a/common/pom.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <parent>
-        <groupId>dev.opendata</groupId>
-        <artifactId>opendata-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
-        <relativePath>../pom.xml</relativePath>
-    </parent>
-
-    <artifactId>common</artifactId>
-    <name>OpenData Common</name>
-    <description>Common utilities for OpenData Java bindings</description>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter</artifactId>
-            <version>5.10.2</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.assertj</groupId>
-            <artifactId>assertj-core</artifactId>
-            <version>3.25.3</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.11.0</version>
-            </plugin>
-        </plugins>
-    </build>
-</project>
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..61285a6
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..37f78a6
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..f0f1576
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,18 @@
+#!/usr/bin/env sh
+set -e
+
+APP_HOME="$(cd "$(dirname "$0")" && pwd)"
+APP_BASE_NAME="$(basename "$0")"
+
+DEFAULT_JVM_OPTS="-Xmx64m -Xms64m"
+
+if [ -n "$JAVA_HOME" ] ; then
+  JAVA_EXEC="$JAVA_HOME/bin/java"
+else
+  JAVA_EXEC="java"
+fi
+
+exec "$JAVA_EXEC" $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS \
+  -Dorg.gradle.appname="$APP_BASE_NAME" \
+  -classpath "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+  org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..5c4fc32
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,13 @@
+@echo off
+setlocal
+set APP_HOME=%~dp0
+set DEFAULT_JVM_OPTS=-Xmx64m -Xms64m
+
+if defined JAVA_HOME (
+  set "JAVA_EXE=%JAVA_HOME%\bin\java.exe"
+) else (
+  set "JAVA_EXE=java"
+)
+
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% -Dorg.gradle.appname=%~n0 -classpath "%APP_HOME%gradle\wrapper\gradle-wrapper.jar" org.gradle.wrapper.GradleWrapperMain %*
+endlocal
diff --git a/log/build.gradle b/log/build.gradle
new file mode 100644
index 0000000..746d6be
--- /dev/null
+++ b/log/build.gradle
@@ -0,0 +1,8 @@
+dependencies {
+    implementation project(':common')
+}
+
+test {
+    jvmArgs "-Djava.library.path=${project.projectDir}/native/target/release"
+    jvmArgs '--enable-native-access=ALL-UNNAMED'
+}
diff --git a/log/pom.xml b/log/pom.xml
deleted file mode 100644
index c7827e5..0000000
--- a/log/pom.xml
+++ /dev/null
@@ -1,59 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <parent>
-        <groupId>dev.opendata</groupId>
-        <artifactId>opendata-java</artifactId>
-        <version>0.1.0-SNAPSHOT</version>
-        <relativePath>../pom.xml</relativePath>
-    </parent>
-
-    <artifactId>log</artifactId>
-    <name>OpenData Log</name>
-    <description>Java bindings for OpenData Log</description>
-
-    <properties>
-        <native.library.path>${project.basedir}/native/target/release</native.library.path>
-    </properties>
-
-    <dependencies>
-        <dependency>
-            <groupId>dev.opendata</groupId>
-            <artifactId>common</artifactId>
-            <version>${project.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter</artifactId>
-            <version>5.10.2</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.assertj</groupId>
-            <artifactId>assertj-core</artifactId>
-            <version>3.25.3</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.11.0</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.2.5</version>
-                <configuration>
-                    <argLine>-Djava.library.path=${native.library.path}</argLine>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-</project>
diff --git a/pom.xml b/pom.xml
deleted file mode 100644
index 354c0d2..0000000
--- a/pom.xml
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <groupId>dev.opendata</groupId>
-    <artifactId>opendata-java</artifactId>
-    <version>0.1.0-SNAPSHOT</version>
-    <packaging>pom</packaging>
-
-    <name>OpenData Java</name>
-    <description>Java bindings for OpenData systems</description>
-
-    <modules>
-        <module>common</module>
-        <module>log</module>
-    </modules>
-
-    <properties>
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    </properties>
-</project>
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..a9ad188
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1,6 @@
+plugins {
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '1.0.0'
+}
+
+rootProject.name = 'opendata-java'
+include 'common', 'log'