diff --git a/orchestrator/src/client/pages/SettingsPage.test.tsx b/orchestrator/src/client/pages/SettingsPage.test.tsx
new file mode 100644
index 0000000..1a32f7d
--- /dev/null
+++ b/orchestrator/src/client/pages/SettingsPage.test.tsx
@@ -0,0 +1,164 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import { render, screen, fireEvent, waitFor, within } from "@testing-library/react"
+import { MemoryRouter } from "react-router-dom"
+
+import { SettingsPage } from "./SettingsPage"
+import * as api from "../api"
+import { toast } from "sonner"
+import type { AppSettings } from "@shared/types"
+
+vi.mock("../api", () => ({
+  getSettings: vi.fn(),
+  updateSettings: vi.fn(),
+  clearDatabase: vi.fn(),
+  deleteJobsByStatus: vi.fn(),
+}))
+
+vi.mock("sonner", () => ({
+  toast: {
+    success: vi.fn(),
+    error: vi.fn(),
+    info: vi.fn(),
+  },
+}))
+
+const baseSettings: AppSettings = {
+  model: "openai/gpt-4o-mini",
+  defaultModel: "openai/gpt-4o-mini",
+  overrideModel: null,
+  modelScorer: "openai/gpt-4o-mini",
+  overrideModelScorer: null,
+  modelTailoring: "openai/gpt-4o-mini",
+  overrideModelTailoring: null,
+  modelProjectSelection: "openai/gpt-4o-mini",
+  overrideModelProjectSelection: null,
+  pipelineWebhookUrl: "",
+  defaultPipelineWebhookUrl: "",
+  overridePipelineWebhookUrl: null,
+  jobCompleteWebhookUrl: "",
+  defaultJobCompleteWebhookUrl: "",
+  overrideJobCompleteWebhookUrl: null,
+  profileProjects: [
+    {
+      id: "proj-1",
+      name: "Project One",
+      description: "Desc 1",
+      date: "2024",
+      isVisibleInBase: true,
+    },
+    {
+      id: "proj-2",
+      name: "Project Two",
+      description: "Desc 2",
+      date: "2023",
+      isVisibleInBase: false,
+    },
+  ],
+  resumeProjects: {
+    maxProjects: 2,
+    lockedProjectIds: [],
+    aiSelectableProjectIds: ["proj-1", "proj-2"],
+  },
+  defaultResumeProjects: {
+    maxProjects: 2,
+    lockedProjectIds: [],
+    aiSelectableProjectIds: ["proj-1", "proj-2"],
+  },
+  overrideResumeProjects: null,
+  ukvisajobsMaxJobs: 50,
+  defaultUkvisajobsMaxJobs: 50,
+  overrideUkvisajobsMaxJobs: null,
+  gradcrackerMaxJobsPerTerm: 50,
+  defaultGradcrackerMaxJobsPerTerm: 50,
+  overrideGradcrackerMaxJobsPerTerm: null,
+  searchTerms: ["engineer"],
+  defaultSearchTerms: ["engineer"],
+  overrideSearchTerms: null,
+  jobspyLocation: "UK",
+  defaultJobspyLocation: "UK",
+  overrideJobspyLocation: null,
+  jobspyResultsWanted: 200,
+  defaultJobspyResultsWanted: 200,
+  overrideJobspyResultsWanted: null,
+  jobspyHoursOld: 72,
+  defaultJobspyHoursOld: 72,
+  overrideJobspyHoursOld: null,
+  jobspyCountryIndeed: "UK",
+  defaultJobspyCountryIndeed: "UK",
+  overrideJobspyCountryIndeed: null,
+  jobspySites: ["indeed", "linkedin"],
+  defaultJobspySites: ["indeed", "linkedin"],
+  overrideJobspySites: null,
+  jobspyLinkedinFetchDescription: true,
+  defaultJobspyLinkedinFetchDescription: true,
+  overrideJobspyLinkedinFetchDescription: null,
+}
+
+const renderPage = () => {
+  return render(
+    <MemoryRouter initialEntries={["/settings"]}>
+      <SettingsPage />
+    </MemoryRouter>
+  )
+}
+
+describe("SettingsPage", () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it("saves trimmed model overrides", async () => {
+    vi.mocked(api.getSettings).mockResolvedValue(baseSettings)
+    vi.mocked(api.updateSettings).mockResolvedValue({
+      ...baseSettings,
+      overrideModel: "gpt-4",
+      model: "gpt-4",
+    })
+
+    renderPage()
+
+    const modelTrigger = await screen.findByRole("button", { name: /model/i })
+    fireEvent.click(modelTrigger)
+
+    const modelField = screen.getByText("Override model").parentElement ?? screen.getByRole("main")
+    const modelInput = within(modelField).getByRole("textbox")
+    fireEvent.change(modelInput, { target: { value: "  gpt-4  " } })
+
+    const saveButton = screen.getByRole("button", { name: /^save$/i })
+    await waitFor(() => expect(saveButton).toBeEnabled())
+
+    fireEvent.click(saveButton)
+
+    await waitFor(() => expect(api.updateSettings).toHaveBeenCalled())
+    expect(api.updateSettings).toHaveBeenCalledWith(
+      expect.objectContaining({
+        model: "gpt-4",
+      })
+    )
+    expect(toast.success).toHaveBeenCalledWith("Settings saved")
+  })
+
+  it("clears jobs by status and summarizes results", async () => {
+    vi.mocked(api.getSettings).mockResolvedValue(baseSettings)
+    vi.mocked(api.deleteJobsByStatus).mockResolvedValue({ message: "", count: 2 })
+
+    renderPage()
+
+    const dangerTrigger = await screen.findByRole("button", { name: /danger zone/i })
+    fireEvent.click(dangerTrigger)
+
+    const clearSelectedButton = await screen.findByRole("button", { name: /clear selected/i })
+    fireEvent.click(clearSelectedButton)
+
+    const confirmButton = await screen.findByRole("button", { name: /clear 1 status/i })
+    fireEvent.click(confirmButton)
+
+    await waitFor(() => expect(api.deleteJobsByStatus).toHaveBeenCalledWith("discovered"))
+    expect(toast.success).toHaveBeenCalledWith(
+      "Jobs cleared",
+      expect.objectContaining({
+        description: "Deleted 2 jobs: 2 discovered",
+      })
+    )
+  })
+})
diff --git a/orchestrator/src/client/pages/settings/components/DangerZoneSection.test.tsx b/orchestrator/src/client/pages/settings/components/DangerZoneSection.test.tsx
new file mode 100644
index 0000000..c8c0a8a
--- /dev/null
+++ b/orchestrator/src/client/pages/settings/components/DangerZoneSection.test.tsx
@@ -0,0 +1,58 @@
+import { describe, it, expect, vi } from "vitest"
+import { render, screen, fireEvent } from "@testing-library/react"
+import { useState } from "react"
+
+import { Accordion } from "@/components/ui/accordion"
+import { DangerZoneSection } from "./DangerZoneSection"
+import type { JobStatus } from "@shared/types"
+
+const DangerZoneHarness = ({ initialStatuses = [] as JobStatus[], onClear }: { initialStatuses?: JobStatus[]; onClear?: () => void }) => {
+  const [statusesToClear, setStatusesToClear] = useState<JobStatus[]>(initialStatuses)
+
+  const toggleStatusToClear = (status: JobStatus) => {
+    setStatusesToClear((prev) =>
+      prev.includes(status) ? prev.filter((s) => s !== status) : [...prev, status]
+    )
+  }
+
+  return (
+    <Accordion type="multiple" defaultValue={["danger-zone"]}>
+      <DangerZoneSection
+        statusesToClear={statusesToClear}
+        toggleStatusToClear={toggleStatusToClear}
+        handleClearByStatuses={onClear ?? (() => {})}
+        handleClearDatabase={() => {}}
+        isLoading={false}
+        isSaving={false}
+      />
+    </Accordion>
+  )
+}
+
+describe("DangerZoneSection", () => {
+  it("disables clear when no statuses are selected", () => {
+    render(<DangerZoneHarness initialStatuses={[]} />)
+
+    const clearButton = screen.getByRole("button", { name: /clear selected/i })
+    expect(clearButton).toBeDisabled()
+  })
+
+  it("toggles status selection and confirms clear", async () => {
+    const onClear = vi.fn()
+    render(<DangerZoneHarness initialStatuses={["applied"]} onClear={onClear} />)
+
+    const appliedButton = screen.getByRole("button", { name: /applied/i })
+    const clearButton = screen.getByRole("button", { name: /clear selected/i })
+
+    expect(clearButton).toBeEnabled()
+
+    fireEvent.click(clearButton)
+    const confirmButton = await screen.findByRole("button", { name: /clear 1 status/i })
+    fireEvent.click(confirmButton)
+
+    expect(onClear).toHaveBeenCalledTimes(1)
+
+    fireEvent.click(appliedButton)
+    expect(clearButton).toBeDisabled()
+  })
+})
diff --git a/orchestrator/src/client/pages/settings/components/JobspySection.test.tsx b/orchestrator/src/client/pages/settings/components/JobspySection.test.tsx
new file mode 100644
index 0000000..e31b1cc
--- /dev/null
+++ b/orchestrator/src/client/pages/settings/components/JobspySection.test.tsx
@@ -0,0 +1,81 @@
+import { describe, it, expect } from "vitest"
+import { render, screen, fireEvent } from "@testing-library/react"
+import { useState } from "react"
+
+import { Accordion } from "@/components/ui/accordion"
+import { JobspySection } from "./JobspySection"
+
+const JobspyHarness = () => {
+  const [jobspySitesDraft, setJobspySitesDraft] = useState<string[] | null>(null)
+  const [jobspyLocationDraft, setJobspyLocationDraft] = useState<string | null>(null)
+  const [jobspyResultsWantedDraft, setJobspyResultsWantedDraft] = useState<number | null>(null)
+  const [jobspyHoursOldDraft, setJobspyHoursOldDraft] = useState<number | null>(null)
+  const [jobspyCountryIndeedDraft, setJobspyCountryIndeedDraft] = useState<string | null>(null)
+  const [jobspyLinkedinFetchDescriptionDraft, setJobspyLinkedinFetchDescriptionDraft] = useState<boolean | null>(null)
+
+  return (
+    <Accordion type="multiple" defaultValue={["jobspy"]}>
+      <JobspySection
+        jobspySitesDraft={jobspySitesDraft}
+        setJobspySitesDraft={setJobspySitesDraft}
+        defaultJobspySites={["indeed", "linkedin"]}
+        effectiveJobspySites={["indeed", "linkedin"]}
+        jobspyLocationDraft={jobspyLocationDraft}
+        setJobspyLocationDraft={setJobspyLocationDraft}
+        defaultJobspyLocation="UK"
+        effectiveJobspyLocation="UK"
+        jobspyResultsWantedDraft={jobspyResultsWantedDraft}
+        setJobspyResultsWantedDraft={setJobspyResultsWantedDraft}
+        defaultJobspyResultsWanted={200}
+        effectiveJobspyResultsWanted={200}
+        jobspyHoursOldDraft={jobspyHoursOldDraft}
+        setJobspyHoursOldDraft={setJobspyHoursOldDraft}
+        defaultJobspyHoursOld={72}
+        effectiveJobspyHoursOld={72}
+        jobspyCountryIndeedDraft={jobspyCountryIndeedDraft}
+        setJobspyCountryIndeedDraft={setJobspyCountryIndeedDraft}
+        defaultJobspyCountryIndeed="UK"
+        effectiveJobspyCountryIndeed="UK"
+        jobspyLinkedinFetchDescriptionDraft={jobspyLinkedinFetchDescriptionDraft}
+        setJobspyLinkedinFetchDescriptionDraft={setJobspyLinkedinFetchDescriptionDraft}
+        defaultJobspyLinkedinFetchDescription={true}
+        effectiveJobspyLinkedinFetchDescription={true}
+        isLoading={false}
+        isSaving={false}
+      />
+    </Accordion>
+  )
+}
+
+describe("JobspySection", () => {
+  it("toggles scraped sites and keeps checkboxes in sync", () => {
+    render(<JobspyHarness />)
+
+    const indeedCheckbox = screen.getByLabelText("Indeed")
+    const linkedinCheckbox = screen.getByLabelText("LinkedIn")
+
+    expect(indeedCheckbox).toBeChecked()
+    expect(linkedinCheckbox).toBeChecked()
+
+    fireEvent.click(indeedCheckbox)
+    expect(indeedCheckbox).not.toBeChecked()
+    expect(linkedinCheckbox).toBeChecked()
+
+    fireEvent.click(indeedCheckbox)
+    expect(indeedCheckbox).toBeChecked()
+  })
+
+  it("clamps numeric inputs to allowed ranges", () => {
+    render(<JobspyHarness />)
+
+    const numericInputs = screen.getAllByRole("spinbutton")
+    const resultsWantedInput = numericInputs[0]
+    const hoursOldInput = numericInputs[1]
+
+    fireEvent.change(resultsWantedInput, { target: { value: "999" } })
+    expect(resultsWantedInput).toHaveValue(500)
+
+    fireEvent.change(hoursOldInput, { target: { value: "0" } })
+    expect(hoursOldInput).toHaveValue(1)
+  })
+})
diff --git a/orchestrator/src/client/pages/settings/components/ResumeProjectsSection.test.tsx b/orchestrator/src/client/pages/settings/components/ResumeProjectsSection.test.tsx
new file mode 100644
index 0000000..1430b5a
--- /dev/null
+++ b/orchestrator/src/client/pages/settings/components/ResumeProjectsSection.test.tsx
@@ -0,0 +1,87 @@
+import { describe, it, expect } from "vitest"
+import { render, screen, fireEvent, waitFor } from "@testing-library/react"
+import { useState } from "react"
+
+import { Accordion } from "@/components/ui/accordion"
+import { ResumeProjectsSection } from "./ResumeProjectsSection"
+import type { ResumeProjectCatalogItem, ResumeProjectsSettings } from "@shared/types"
+
+const profileProjects: ResumeProjectCatalogItem[] = [
+  {
+    id: "proj-1",
+    name: "Project One",
+    description: "Desc 1",
+    date: "2024",
+    isVisibleInBase: true,
+  },
+  {
+    id: "proj-2",
+    name: "Project Two",
+    description: "Desc 2",
+    date: "2023",
+    isVisibleInBase: false,
+  },
+]
+
+const ResumeProjectsHarness = ({ initialDraft }: { initialDraft: ResumeProjectsSettings | null }) => {
+  const [draft, setDraft] = useState<ResumeProjectsSettings | null>(initialDraft)
+  const lockedCount = draft?.lockedProjectIds.length ?? 0
+
+  return (
+    <Accordion type="multiple" defaultValue={["resume-projects"]}>
+      <ResumeProjectsSection
+        resumeProjectsDraft={draft}
+        setResumeProjectsDraft={setDraft}
+        profileProjects={profileProjects}
+        lockedCount={lockedCount}
+        maxProjectsTotal={profileProjects.length}
+        isLoading={false}
+        isSaving={false}
+      />
+    </Accordion>
+  )
+}
+
+describe("ResumeProjectsSection", () => {
+  it("clamps max projects to the locked count", async () => {
+    render(
+      <ResumeProjectsHarness
+        initialDraft={{
+          maxProjects: 2,
+          lockedProjectIds: ["proj-1"],
+          aiSelectableProjectIds: ["proj-2"],
+        }}
+      />
+    )
+
+    const input = screen.getByRole("spinbutton")
+    fireEvent.change(input, { target: { value: "0" } })
+
+    await waitFor(() => expect(input).toHaveValue(1))
+  })
+
+  it("locks projects and enforces maxProjects >= locked count", () => {
+    render(
+      <ResumeProjectsHarness
+        initialDraft={{
+          maxProjects: 0,
+          lockedProjectIds: [],
+          aiSelectableProjectIds: ["proj-1"],
+        }}
+      />
+    )
+
+    const checkboxes = screen.getAllByRole("checkbox")
+    const lockedCheckbox = checkboxes[0]
+    const aiSelectableCheckbox = checkboxes[1]
+
+    fireEvent.click(lockedCheckbox)
+
+    expect(lockedCheckbox).toBeChecked()
+    expect(aiSelectableCheckbox).toBeChecked()
+    expect(aiSelectableCheckbox).toBeDisabled()
+
+    const input = screen.getByRole("spinbutton")
+    expect(input).toHaveValue(1)
+  })
+})