diff --git a/CHANGELOG.md b/CHANGELOG.md
index 385f438..dc1a119 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,11 +9,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Job detail page showing status, queue, priority, arguments (pretty-printed JSON), and full error backtrace for failed jobs
+- Retry/Discard action buttons on the detail page based on job status
+- Job class names on the jobs and failed jobs index pages link to the detail page
 - Retry and discard actions on individual failed jobs
 - Bulk "Retry All" and "Discard All" actions for failed jobs
 - Discard action on individual ready, scheduled, and blocked jobs
 - Bulk "Discard All" action for ready, scheduled, and blocked jobs (scoped to current queue filter)
-- Roadmap section added to README
+- Roadmap section added to README with planned features and contribution guidelines
 
 ### Fixed
 
diff --git a/app/assets/stylesheets/solid_queue_web/application.css b/app/assets/stylesheets/solid_queue_web/application.css
index 2143b22..6858c30 100644
--- a/app/assets/stylesheets/solid_queue_web/application.css
+++ b/app/assets/stylesheets/solid_queue_web/application.css
@@ -307,4 +307,71 @@ nav.pagy a {
 nav.pagy a:hover:not([aria-disabled="true"]) { background: var(--bg); }
 nav.pagy a[aria-current="page"] { background: var(--primary); color: #fff; border-color: var(--primary); }
 nav.pagy a[role="separator"],
-nav.pagy a[aria-disabled="true"] { color: var(--muted); cursor: default; }
\ No newline at end of file
+nav.pagy a[aria-disabled="true"] { color: var(--muted); cursor: default; }
+
+/* Job detail page */
+.sqd-breadcrumb {
+  font-size: 12px;
+  color: var(--muted);
+  margin-bottom: 0.25rem;
+}
+
+.sqd-breadcrumb a { color: var(--muted); text-decoration: none; }
+.sqd-breadcrumb a:hover { color: var(--text); }
+
+.sqd-detail-grid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 1.5rem;
+}
+
+@media (max-width: 768px) {
+  .sqd-detail-grid { grid-template-columns: 1fr; }
+}
+
+.sqd-detail-section { padding: 1.25rem; }
+
+.sqd-section-title {
+  font-size: 13px;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  color: var(--muted);
+  margin-bottom: 1rem;
+}
+
+.sqd-section-title--danger { color: var(--danger); }
+
+.sqd-dl {
+  display: grid;
+  grid-template-columns: auto 1fr;
+  gap: 0.5rem 1.5rem;
+  font-size: 13px;
+}
+
+.sqd-dl dt { color: var(--muted); white-space: nowrap; }
+.sqd-dl dd { word-break: break-all; }
+
+.sqd-pre {
+  font-family: monospace;
+  font-size: 12px;
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: 5px;
+  padding: 0.75rem;
+  overflow-x: auto;
+  white-space: pre-wrap;
+  word-break: break-word;
+  max-height: 400px;
+  overflow-y: auto;
+}
+
+.sqd-pre--muted { color: var(--muted); }
+
+.sqd-error-header {
+  font-size: 13px;
+  padding: 0.5rem 0.75rem;
+  background: #f8d7da;
+  color: #842029;
+  border-radius: 5px;
+}
\ No newline at end of file
diff --git a/app/controllers/solid_queue_web/jobs_controller.rb b/app/controllers/solid_queue_web/jobs_controller.rb
index a5a5b44..3b7f468 100644
--- a/app/controllers/solid_queue_web/jobs_controller.rb
+++ b/app/controllers/solid_queue_web/jobs_controller.rb
@@ -19,6 +19,14 @@ def index
       @jobs = @jobs.order(created_at: :desc).limit(100)
     end
 
+    def show
+      @job = SolidQueue::Job
+        .includes(:ready_execution, :scheduled_execution, :claimed_execution, :blocked_execution, :failed_execution)
+        .find(params[:id])
+      @failed_execution = @job.failed_execution
+      @execution_status = derive_status(@job)
+    end
+
     def destroy
       execution = execution_model_for!(params[:status]).find(params[:id])
       execution.discard
@@ -45,6 +53,15 @@ def discard_all
 
     private
 
+    def derive_status(job)
+      return "failed"    if job.failed_execution.present?
+      return "claimed"   if job.claimed_execution.present?
+      return "blocked"   if job.blocked_execution.present?
+      return "ready"     if job.ready_execution.present?
+      return "scheduled" if job.scheduled_execution.present?
+      "finished"
+    end
+
     def execution_model_for!(status)
       case status
       when "ready"     then SolidQueue::ReadyExecution
diff --git a/app/views/solid_queue_web/failed_jobs/index.html.erb b/app/views/solid_queue_web/failed_jobs/index.html.erb
index 8b28000..8b97231 100644
--- a/app/views/solid_queue_web/failed_jobs/index.html.erb
+++ b/app/views/solid_queue_web/failed_jobs/index.html.erb
@@ -28,7 +28,7 @@
         <% @failed_jobs.each do |execution| %>
           <% job = execution.job %>
           <tr>
-            <td><%= job.class_name %></td>
+            <td><%= link_to job.class_name, job_path(job) %></td>
             <td class="sqd-mono"><%= job.queue_name %></td>
             <td>
               <% if execution.exception_class.present? %>
diff --git a/app/views/solid_queue_web/jobs/index.html.erb b/app/views/solid_queue_web/jobs/index.html.erb
index d4cb25f..e08b881 100644
--- a/app/views/solid_queue_web/jobs/index.html.erb
+++ b/app/views/solid_queue_web/jobs/index.html.erb
@@ -42,7 +42,7 @@
           <tr>
             <td>
               <span class="sqd-badge sqd-badge--<%= @status %>"><%= @status %></span>
-              <span style="margin-left: 0.5rem;"><%= job.class_name %></span>
+              <%= link_to job.class_name, job_path(job), style: "margin-left: 0.5rem;" %>
             </td>
             <td>
               <%= link_to job.queue_name, jobs_path(status: @status, queue: job.queue_name),
diff --git a/app/views/solid_queue_web/jobs/show.html.erb b/app/views/solid_queue_web/jobs/show.html.erb
new file mode 100644
index 0000000..c6328cc
--- /dev/null
+++ b/app/views/solid_queue_web/jobs/show.html.erb
@@ -0,0 +1,75 @@
+<div class="sqd-page-header">
+  <div>
+    <div class="sqd-breadcrumb">
+      <%= link_to "Jobs", jobs_path(status: @execution_status) %> &rsaquo; Detail
+    </div>
+    <h1 class="sqd-page-title"><%= @job.class_name %></h1>
+  </div>
+
+  <div class="sqd-actions">
+    <% if @execution_status == "failed" && @failed_execution %>
+      <%= button_to "Retry", retry_failed_job_path(@failed_execution), method: :post,
+            class: "sqd-btn sqd-btn--primary" %>
+      <%= button_to "Discard", failed_job_path(@failed_execution), method: :delete,
+            class: "sqd-btn sqd-btn--danger",
+            data: { confirm: "Discard this job?" } %>
+    <% elsif SolidQueueWeb::JobsController::DISCARDABLE.include?(@execution_status) %>
+      <% execution = @job.public_send("#{@execution_status}_execution") %>
+      <% if execution %>
+        <%= button_to "Discard", job_path(execution),
+              method: :delete,
+              params: { status: @execution_status },
+              class: "sqd-btn sqd-btn--danger",
+              data: { confirm: "Discard this job?" } %>
+      <% end %>
+    <% end %>
+  </div>
+</div>
+
+<div class="sqd-detail-grid">
+  <div class="sqd-card sqd-detail-section">
+    <h2 class="sqd-section-title">Details</h2>
+    <dl class="sqd-dl">
+      <dt>Status</dt>
+      <dd><span class="sqd-badge sqd-badge--<%= @execution_status %>"><%= @execution_status %></span></dd>
+
+      <dt>Queue</dt>
+      <dd class="sqd-mono"><%= @job.queue_name %></dd>
+
+      <dt>Priority</dt>
+      <dd><%= @job.priority %></dd>
+
+      <dt>Active Job ID</dt>
+      <dd class="sqd-mono sqd-truncate" title="<%= @job.active_job_id %>"><%= @job.active_job_id %></dd>
+
+      <dt>Concurrency Key</dt>
+      <dd class="sqd-mono"><%= @job.concurrency_key.presence || "—" %></dd>
+
+      <dt>Enqueued At</dt>
+      <dd class="sqd-mono"><%= @job.created_at.strftime("%Y-%m-%d %H:%M:%S %Z") %></dd>
+
+      <dt>Scheduled At</dt>
+      <dd class="sqd-mono"><%= @job.scheduled_at ? @job.scheduled_at.strftime("%Y-%m-%d %H:%M:%S %Z") : "—" %></dd>
+
+      <dt>Finished At</dt>
+      <dd class="sqd-mono"><%= @job.finished_at ? @job.finished_at.strftime("%Y-%m-%d %H:%M:%S %Z") : "—" %></dd>
+    </dl>
+  </div>
+
+  <div class="sqd-card sqd-detail-section">
+    <h2 class="sqd-section-title">Arguments</h2>
+    <pre class="sqd-pre"><%= JSON.pretty_generate(@job.arguments) rescue @job.arguments.inspect %></pre>
+  </div>
+</div>
+
+<% if @failed_execution %>
+  <div class="sqd-card sqd-detail-section" style="margin-top: 1.5rem;">
+    <h2 class="sqd-section-title sqd-section-title--danger">Error</h2>
+    <p class="sqd-error-header">
+      <strong><%= @failed_execution.exception_class %></strong>: <%= @failed_execution.message %>
+    </p>
+    <% if @failed_execution.backtrace.present? %>
+      <pre class="sqd-pre sqd-pre--muted" style="margin-top: 0.75rem;"><%= Array(@failed_execution.backtrace).join("\n") %></pre>
+    <% end %>
+  </div>
+<% end %>
diff --git a/config/routes.rb b/config/routes.rb
index c1c2828..6922aa4 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -2,7 +2,7 @@
   root to: "dashboard#index"
 
   resources :queues,      only: [ :index ]
-  resources :jobs, only: [ :index, :destroy ] do
+  resources :jobs, only: [ :index, :show, :destroy ] do
     collection do
       post :discard_all
     end
diff --git a/spec/requests/solid_queue_web/jobs_spec.rb b/spec/requests/solid_queue_web/jobs_spec.rb
index 39bb41a..ee6362f 100644
--- a/spec/requests/solid_queue_web/jobs_spec.rb
+++ b/spec/requests/solid_queue_web/jobs_spec.rb
@@ -12,6 +12,30 @@
 
   let(:ready_execution) { ready_job.ready_execution }
 
+  describe "GET /jobs/jobs/:id (detail)" do
+    it "returns HTTP success" do
+      get "/jobs/jobs/#{ready_job.id}"
+      expect(response).to have_http_status(:ok)
+    end
+
+    it "displays job class name and details" do
+      get "/jobs/jobs/#{ready_job.id}"
+      expect(response.body).to include("TestJob")
+      expect(response.body).to include("default")
+    end
+
+    it "shows error section for failed jobs" do
+      ready_job.ready_execution&.destroy
+      SolidQueue::FailedExecution.create!(
+        job: ready_job,
+        error: { exception_class: "RuntimeError", message: "boom", backtrace: [ "app/jobs/test_job.rb:1" ] }
+      )
+      get "/jobs/jobs/#{ready_job.id}"
+      expect(response.body).to include("RuntimeError")
+      expect(response.body).to include("app/jobs/test_job.rb:1")
+    end
+  end
+
   describe "GET /jobs/jobs" do
     it "returns HTTP success" do
       get "/jobs/jobs"