diff --git a/lib/apply/easy_apply.mjs b/lib/apply/easy_apply.mjs
index b9655b5..4573f69 100644
--- a/lib/apply/easy_apply.mjs
+++ b/lib/apply/easy_apply.mjs
@@ -212,7 +212,7 @@ export async function apply(page, job, formFiller) {
     }
 
     // Fill form fields — page.$() in form_filler pierces shadow DOM
-    const unknowns = await formFiller.fill(page, formFiller.profile.resume_path);
+    const unknowns = await formFiller.fill(page, formFiller.profile.resume_path, { modalSelector: MODAL });
     if (unknowns.length > 0) console.log(`    [step ${step}] unknown fields: ${JSON.stringify(unknowns.map(u => u.label || u))}`);
 
     if (unknowns[0]?.honeypot) {
diff --git a/lib/apply/greenhouse.mjs b/lib/apply/greenhouse.mjs
index 9204489..768168a 100644
--- a/lib/apply/greenhouse.mjs
+++ b/lib/apply/greenhouse.mjs
@@ -1,5 +1,8 @@
 /**
  * greenhouse.mjs — Greenhouse ATS handler (extends generic)
+ *
+ * Greenhouse boards show the form directly on the page (no Apply button needed).
+ * Form ID: #application-form. Resume input: #resume. Submit: "Submit application".
  */
 import { apply as genericApply } from './generic.mjs';
 
@@ -7,6 +10,19 @@ export const SUPPORTED_TYPES = ['greenhouse'];
 
 export async function apply(page, job, formFiller) {
   return genericApply(page, job, formFiller, {
-    submitSelector: 'button:has-text("Submit Application"), input[type="submit"]',
+    formDetector: '#application-form',
+    submitSelector: 'button:has-text("Submit application"), input[type="submit"]',
+    verifySelector: '#application-form',
+    beforeSubmit: async (page, formFiller) => {
+      if (!formFiller.profile.resume_path) return;
+      const resumeInput = await page.$('#resume');
+      if (resumeInput) {
+        const hasFile = await resumeInput.evaluate(el => !!el.value);
+        if (!hasFile) {
+          await resumeInput.setInputFiles(formFiller.profile.resume_path).catch(() => {});
+          await page.waitForTimeout(1000);
+        }
+      }
+    },
   });
 }
diff --git a/lib/form_filler.mjs b/lib/form_filler.mjs
index 60ba3c3..86148e2 100644
--- a/lib/form_filler.mjs
+++ b/lib/form_filler.mjs
@@ -10,7 +10,7 @@ import { writeFileSync, renameSync } from 'fs';
 import {
   DEFAULT_YEARS_EXPERIENCE, DEFAULT_DESIRED_SALARY,
   MINIMUM_SALARY_FACTOR, DEFAULT_SKILL_RATING,
-  LINKEDIN_EASY_APPLY_MODAL_SELECTOR, FORM_PATTERN_MAX_LENGTH,
+  FORM_PATTERN_MAX_LENGTH,
   AUTOCOMPLETE_WAIT, AUTOCOMPLETE_TIMEOUT, ANTHROPIC_API_URL, DEFAULT_MODEL
 } from './constants.mjs';
 
@@ -553,9 +553,9 @@ Answer:`;
    * then only makes individual CDP calls for elements that need action.
    * Returns array of unknown required field labels.
    */
-  async fill(page, resumePath) {
+  async fill(page, resumePath, { modalSelector = null } = {}) {
     const unknown = [];
-    const container = await page.$(LINKEDIN_EASY_APPLY_MODAL_SELECTOR) || page;
+    const container = modalSelector ? (await page.$(modalSelector) || page) : page;
 
     // Single DOM snapshot — all labels, values, visibility, required status
     const snap = await this._snapshotFields(container);