diff --git a/internal/usage/record.go b/internal/usage/record.go
index d3ab14b..d03ceff 100644
--- a/internal/usage/record.go
+++ b/internal/usage/record.go
@@ -27,7 +27,7 @@ type Allocation struct {
 	// storage fraction of total storage
 	Storage float64 `json:"storage,omitempty"`
 	// ephemeral storage fraction of total ephemeral storage
-	StorageEphemeral float64 `json:"storageEphemeral,omitempty"`
+	StorageEphemeral float64 `json:"storage_ephemeral,omitempty"`
 }
 
 type Allocations struct {
@@ -39,7 +39,7 @@ type Ask struct {
 	CPU              int64 `json:"cpu,omitempty"`
 	Memory           int64 `json:"memory,omitempty"`
 	Storage          int64 `json:"storage,omitempty"`
-	StorageEphemeral int64 `json:"storageEphemeral,omitempty"`
+	StorageEphemeral int64 `json:"storage_ephemeral,omitempty"`
 	GPU              int64 `json:"gpu,omitempty"`
 }
 
@@ -60,7 +60,7 @@ type Capacity struct {
 	// local storage in Kibibytes
 	Storage int64 `json:"storage,omitempty"`
 	// ephemeral storage in Kibibytes
-	StorageEphemeral int64 `json:"storageEphemeral,omitempty"`
+	StorageEphemeral int64 `json:"storage_ephemeral,omitempty"`
 }
 
 type NodeInfo struct {
@@ -70,14 +70,14 @@ type NodeInfo struct {
 	Nodegroup    string `json:"nodegroup,omitempty"`
 	InstanceType string `json:"type,omitempty"`
 	// ComputeType: fargate or ec2
-	ComputeType string `json:"computeType,omitempty"`
+	ComputeType string `json:"compute_type,omitempty"`
 	// CapacityType: SPOT or ON_DEMAND
-	CapacityType   string    `json:"capacityType,omitempty"`
+	CapacityType   string    `json:"capacity_type,omitempty"`
 	Region         string    `json:"region"`
 	Zone           string    `json:"zone"`
 	Arch           string    `json:"arch"`
 	OS             string    `json:"os"`
-	OSImage        string    `json:"osImage"`
+	OSImage        string    `json:"os_image"`
 	KernelVersion  string    `json:"kernel"`
 	KubeletVersion string    `json:"kubelet"`
 	Runtime        string    `json:"runtime"`
@@ -91,10 +91,10 @@ type PodInfo struct {
 	Namespace   string            `json:"namespace"`
 	Labels      map[string]string `json:"labels,omitempty"`
 	Node        NodeInfo          `json:"node"`
-	QosClass    string            `json:"qosClass"`
-	StartTime   time.Time         `json:"startTime"`
-	BeginTime   time.Time         `json:"beginTime"`
-	EndTime     time.Time         `json:"endTime"`
+	QosClass    string            `json:"qos_class"`
+	StartTime   time.Time         `json:"start_time"`
+	BeginTime   time.Time         `json:"begin_time"`
+	EndTime     time.Time         `json:"end_time"`
 	Resources   Resources         `json:"resources,omitempty"`
 	Allocations Allocations       `json:"allocations,omitempty"`
 }
diff --git a/schema/schema.json b/schema/schema.json
index 7bb794e..33c89a5 100644
--- a/schema/schema.json
+++ b/schema/schema.json
@@ -1,6 +1,6 @@
 {
   "type": "record",
-  "name": "PodInfo",
+  "name": "pod_info",
   "fields": [
     {
       "name": "name",
@@ -21,7 +21,7 @@
       "name": "node",
       "type": {
         "type": "record",
-        "name": "Node",
+        "name": "node",
         "fields": [
           {
             "name": "id",
@@ -44,11 +44,11 @@
             "type": "string"
           },
           {
-            "name": "computeType",
+            "name": "compute_type",
             "type": "string"
           },
           {
-            "name": "capacityType",
+            "name": "capacity_type",
             "type": "string"
           },
           {
@@ -68,7 +68,7 @@
             "type": "string"
           },
           {
-            "name": "osImage",
+            "name": "os_image",
             "type": "string"
           },
           {
@@ -87,7 +87,7 @@
             "name": "allocatable",
             "type": {
               "type": "record",
-              "name": "Allocatable",
+              "name": "allocatable",
               "fields": [
                 {
                   "name": "cpu",
@@ -113,7 +113,7 @@
                   "default": 0
                 },
                 {
-                  "name": "storageEphemeral",
+                  "name": "storage_ephemeral",
                   "type": "long",
                   "default": 0
                 }
@@ -150,7 +150,7 @@
                   "default": 0
                 },
                 {
-                  "name": "storageEphemeral",
+                  "name": "storage_ephemeral",
                   "type": "long",
                   "default": 0
                 }
@@ -168,26 +168,26 @@
       }
     },
     {
-      "name": "qosClass",
+      "name": "qos_class",
       "type": "string",
       "default": "BestEffort"
     },
     {
-      "name": "startTime",
+      "name": "start_time",
       "type": {
         "type": "string",
         "logicalType": "timestamp-millis"
       }
     },
     {
-      "name": "beginTime",
+      "name": "begin_time",
       "type": {
         "type": "string",
         "logicalType": "timestamp-millis"
       }
     },
     {
-      "name": "endTime",
+      "name": "end_time",
       "type": {
         "type": "string",
         "logicalType": "timestamp-millis"
@@ -197,13 +197,13 @@
       "name": "resources",
       "type": {
         "type": "record",
-        "name": "Resources",
+        "name": "resources",
         "fields": [
           {
             "name": "limits",
             "type": {
               "type": "record",
-              "name": "Limits",
+              "name": "limits",
               "fields": [
                 {
                   "name": "cpu",
@@ -226,7 +226,7 @@
                   "default": 0
                 },
                 {
-                  "name": "storageEphemeral",
+                  "name": "storage_ephemeral",
                   "type": "long",
                   "default": 0
                 }
@@ -237,7 +237,7 @@
             "name": "requests",
             "type": {
               "type": "record",
-              "name": "Requests",
+              "name": "requests",
               "fields": [
                 {
                   "name": "cpu",
@@ -260,7 +260,7 @@
                   "default": 0
                 },
                 {
-                  "name": "storageEphemeral",
+                  "name": "storage_ephemeral",
                   "type": "long",
                   "default": 0
                 }
@@ -274,13 +274,13 @@
       "name": "allocations",
       "type": {
         "type": "record",
-        "name": "Allocations",
+        "name": "allocations",
         "fields": [
           {
             "name": "limits",
             "type": {
               "type": "record",
-              "name": "AllocationLimits",
+              "name": "allocation_imits",
               "fields": [
                 {
                   "name": "cpu",
@@ -301,7 +301,7 @@
                   "default": 0
                 },
                 {
-                  "name": "storageEphemeral",
+                  "name": "storage_ephemeral",
                   "type": "double",
                   "default": 0
                 }
@@ -312,7 +312,7 @@
             "name": "requests",
             "type": {
               "type": "record",
-              "name": "AllocationRequests",
+              "name": "allocation_requests",
               "fields": [
                 {
                   "name": "cpu",
@@ -333,7 +333,7 @@
                   "default": 0
                 },
                 {
-                  "name": "storageEphemeral",
+                  "name": "storage_ephemeral",
                   "type": "double",
                   "default": 0
                 }