diff --git a/ui/app/adapters/job.js b/ui/app/adapters/job.js
index 5f193403a..4d18d1625 100644
--- a/ui/app/adapters/job.js
+++ b/ui/app/adapters/job.js
@@ -1,7 +1,7 @@
 import Ember from 'ember';
 import ApplicationAdapter from './application';
 
-const { RSVP, inject } = Ember;
+const { RSVP, inject, assign } = Ember;
 
 export default ApplicationAdapter.extend({
   system: inject.service(),
@@ -9,12 +9,10 @@ export default ApplicationAdapter.extend({
   shouldReloadAll: () => true,
 
   buildQuery() {
-    const namespace = this.get('system.activeNamespace');
+    const namespace = this.get('system.activeNamespace.id');
 
-    if (namespace) {
-      return {
-        namespace: namespace.get('name'),
-      };
+    if (namespace && namespace !== 'default') {
+      return { namespace };
     }
   },
 
@@ -22,7 +20,7 @@ export default ApplicationAdapter.extend({
     const namespace = this.get('system.activeNamespace');
     return this._super(...arguments).then(data => {
       data.forEach(job => {
-        job.Namespace = namespace && namespace.get('id');
+        job.Namespace = namespace ? namespace.get('id') : 'default';
       });
       return data;
     });
@@ -31,11 +29,21 @@ export default ApplicationAdapter.extend({
   findRecord(store, { modelName }, id, snapshot) {
     // To make a findRecord response reflect the findMany response, the JobSummary
     // from /summary needs to be stitched into the response.
+
+    // URL is the form of /job/:name?namespace=:namespace with arbitrary additional query params
+    const [name, namespace] = JSON.parse(id);
+    const namespaceQuery = namespace && namespace !== 'default' ? { namespace } : {};
     return RSVP.hash({
-      job: this._super(...arguments),
-      summary: this.ajax(`${this.buildURL(modelName, id, snapshot, 'findRecord')}/summary`, 'GET', {
-        data: this.buildQuery(),
+      job: this.ajax(this.buildURL(modelName, name, snapshot, 'findRecord'), 'GET', {
+        data: assign(this.buildQuery() || {}, namespaceQuery),
       }),
+      summary: this.ajax(
+        `${this.buildURL(modelName, name, snapshot, 'findRecord')}/summary`,
+        'GET',
+        {
+          data: assign(this.buildQuery() || {}, namespaceQuery),
+        }
+      ),
     }).then(({ job, summary }) => {
       job.JobSummary = summary;
       return job;
@@ -52,7 +60,9 @@ export default ApplicationAdapter.extend({
   },
 
   fetchRawDefinition(job) {
-    const url = this.buildURL('job', job.get('id'), job, 'findRecord');
-    return this.ajax(url, 'GET', { data: this.buildQuery() });
+    const [name, namespace] = JSON.parse(job.get('id'));
+    const namespaceQuery = namespace && namespace !== 'default' ? { namespace } : {};
+    const url = this.buildURL('job', name, job, 'findRecord');
+    return this.ajax(url, 'GET', { data: assign(this.buildQuery() || {}, namespaceQuery) });
   },
 });
diff --git a/ui/app/models/job.js b/ui/app/models/job.js
index 4e1e3a8e3..43c4b1225 100644
--- a/ui/app/models/job.js
+++ b/ui/app/models/job.js
@@ -10,6 +10,7 @@ const { computed } = Ember;
 export default Model.extend({
   region: attr('string'),
   name: attr('string'),
+  plainId: attr('string'),
   type: attr('string'),
   priority: attr('number'),
   allAtOnce: attr('boolean'),
diff --git a/ui/app/serializers/allocation.js b/ui/app/serializers/allocation.js
index b8a52d809..32722fc50 100644
--- a/ui/app/serializers/allocation.js
+++ b/ui/app/serializers/allocation.js
@@ -1,9 +1,11 @@
 import Ember from 'ember';
 import ApplicationSerializer from './application';
 
-const { get } = Ember;
+const { get, inject } = Ember;
 
 export default ApplicationSerializer.extend({
+  system: inject.service(),
+
   attrs: {
     taskGroupName: 'TaskGroup',
     states: 'TaskStates',
@@ -22,6 +24,14 @@ export default ApplicationSerializer.extend({
 
     hash.JobVersion = hash.JobVersion != null ? hash.JobVersion : get(hash, 'Job.Version');
 
+    hash.PlainJobId = hash.JobID;
+    hash.Namespace =
+      hash.Namespace ||
+      get(hash, 'Job.Namespace') ||
+      this.get('system.activeNamespace.id') ||
+      'default';
+    hash.JobID = JSON.stringify([hash.JobID, hash.Namespace]);
+
     // TEMPORARY: https://github.com/emberjs/data/issues/5209
     hash.OriginalJobId = hash.JobID;
 
diff --git a/ui/app/serializers/deployment.js b/ui/app/serializers/deployment.js
index 2cae8c7a9..04e5475a0 100644
--- a/ui/app/serializers/deployment.js
+++ b/ui/app/serializers/deployment.js
@@ -14,6 +14,14 @@ export default ApplicationSerializer.extend({
       return assign({ Name: key }, deploymentStats);
     });
 
+    hash.PlainJobId = hash.JobID;
+    hash.Namespace =
+      hash.Namespace ||
+      get(hash, 'Job.Namespace') ||
+      this.get('system.activeNamespace.id') ||
+      'default';
+    hash.JobID = JSON.stringify([hash.JobID, hash.Namespace]);
+
     return this._super(typeHash, hash);
   },
 
diff --git a/ui/app/serializers/job.js b/ui/app/serializers/job.js
index 8854b15c8..0f36f7524 100644
--- a/ui/app/serializers/job.js
+++ b/ui/app/serializers/job.js
@@ -12,9 +12,13 @@ export default ApplicationSerializer.extend({
   normalize(typeHash, hash) {
     hash.NamespaceID = hash.Namespace;
 
+    // ID is a composite of both the job ID and the namespace the job is in
+    hash.PlainId = hash.ID;
+    hash.ID = JSON.stringify([hash.ID, hash.NamespaceID || 'default']);
+
     // Transform the map-based JobSummary object into an array-based
     // JobSummary fragment list
-    hash.TaskGroupSummaries = Object.keys(get(hash, 'JobSummary.Summary')).map(key => {
+    hash.TaskGroupSummaries = Object.keys(get(hash, 'JobSummary.Summary') || {}).map(key => {
       const allocStats = get(hash, `JobSummary.Summary.${key}`);
       const summary = { Name: key };
 
@@ -40,9 +44,10 @@ export default ApplicationSerializer.extend({
     const namespace =
       !hash.NamespaceID || hash.NamespaceID === 'default' ? undefined : hash.NamespaceID;
     const { modelName } = modelClass;
+
     const jobURL = this.store
       .adapterFor(modelName)
-      .buildURL(modelName, this.extractId(modelClass, hash), hash, 'findRecord');
+      .buildURL(modelName, hash.PlainId, hash, 'findRecord');
 
     return assign(this._super(...arguments), {
       allocations: {
diff --git a/ui/tests/unit/adapters/job-test.js b/ui/tests/unit/adapters/job-test.js
index 473b67232..433ac1f0d 100644
--- a/ui/tests/unit/adapters/job-test.js
+++ b/ui/tests/unit/adapters/job-test.js
@@ -10,6 +10,7 @@ moduleFor('adapter:job', 'Unit | Adapter | Job', {
     this.server = startMirage();
     this.server.create('node');
     this.server.create('job', { id: 'job-1' });
+    this.server.create('job', { id: 'job-2', namespaceId: 'some-namespace' });
   },
   afterEach() {
     this.server.shutdown();
@@ -18,22 +19,43 @@ moduleFor('adapter:job', 'Unit | Adapter | Job', {
 
 test('The job summary is stitched into the job request', function(assert) {
   const { pretender } = this.server;
-  const jobId = 'job-1';
+  const jobName = 'job-1';
+  const jobNamespace = 'default';
+  const jobId = JSON.stringify([jobName, jobNamespace]);
 
   this.subject().findRecord(null, { modelName: 'job' }, jobId);
 
   assert.deepEqual(
     pretender.handledRequests.mapBy('url'),
-    ['/v1/namespaces', `/v1/job/${jobId}`, `/v1/job/${jobId}/summary`],
+    ['/v1/namespaces', `/v1/job/${jobName}`, `/v1/job/${jobName}/summary`],
     'The three requests made are /namespaces, /job/:id, and /job/:id/summary'
   );
 });
 
+test('When the job has a namespace other than default, it is in the URL', function(assert) {
+  const { pretender } = this.server;
+  const jobName = 'job-2';
+  const jobNamespace = 'some-namespace';
+  const jobId = JSON.stringify([jobName, jobNamespace]);
+
+  this.subject().findRecord(null, { modelName: 'job' }, jobId);
+
+  assert.deepEqual(
+    pretender.handledRequests.mapBy('url'),
+    [
+      '/v1/namespaces',
+      `/v1/job/${jobName}?namespace=${jobNamespace}`,
+      `/v1/job/${jobName}/summary?namespace=${jobNamespace}`,
+    ],
+    'The three requests made are /namespaces, /job/:id?namespace=:namespace, and /job/:id/summary?namespace=:namespace'
+  );
+});
+
 test('When there is no token set in the token service, no x-nomad-token header is set', function(
   assert
 ) {
   const { pretender } = this.server;
-  const jobId = 'job-1';
+  const jobId = JSON.stringify(['job-1', 'default']);
 
   this.subject().findRecord(null, { modelName: 'job' }, jobId);
 
@@ -47,7 +69,7 @@ test('When a token is set in the token service, then x-nomad-token header is set
   assert
 ) {
   const { pretender } = this.server;
-  const jobId = 'job-1';
+  const jobId = JSON.stringify(['job-1', 'default']);
   const secret = 'here is the secret';
 
   this.subject().set('token.secret', secret);
diff --git a/ui/tests/unit/serializers/job-test.js b/ui/tests/unit/serializers/job-test.js
index 9e4a2e2ad..15bf2b0f2 100644
--- a/ui/tests/unit/serializers/job-test.js
+++ b/ui/tests/unit/serializers/job-test.js
@@ -51,10 +51,11 @@ test('The JobSummary object is transformed from a map to a list', function(asser
     JobModifyIndex: 7,
   };
 
-  const normalized = this.subject().normalize(JobModel, original);
+  const { data } = this.subject().normalize(JobModel, original);
 
-  assert.deepEqual(normalized.data.attributes, {
+  assert.deepEqual(data.attributes, {
     name: 'example',
+    plainId: 'example',
     type: 'service',
     priority: 50,
     periodic: false,
@@ -116,6 +117,7 @@ test('The children stats are lifted out of the JobSummary object', function(asse
 
   assert.deepEqual(normalized.data.attributes, {
     name: 'example',
+    plainId: 'example',
     type: 'service',
     priority: 50,
     periodic: false,
@@ -130,3 +132,29 @@ test('The children stats are lifted out of the JobSummary object', function(asse
     modifyIndex: 9,
   });
 });
+
+test('`default` is used as the namespace in the job ID when there is no namespace in the payload', function(
+  assert
+) {
+  const original = {
+    ID: 'example',
+    Name: 'example',
+  };
+
+  const { data } = this.subject().normalize(JobModel, original);
+  assert.equal(data.id, JSON.stringify([data.attributes.name, 'default']));
+});
+
+test('The ID of the record is a composite of both the name and the namespace', function(assert) {
+  const original = {
+    ID: 'example',
+    Name: 'example',
+    Namespace: 'special-namespace',
+  };
+
+  const { data } = this.subject().normalize(JobModel, original);
+  assert.equal(
+    data.id,
+    JSON.stringify([data.attributes.name, data.relationships.namespace.data.id])
+  );
+});