Original data · 80 live postings · 22 S&P 500 companies
IT Support Resume Keywords: What 22 S&P 500 Companies Actually Ask For
We indexed 80 live IT support postings from S&P 500 careers sites (June 2026) and measured which resume-relevant terms appear in the 45 full job descriptions from 9 employers. These are the exact words recruiters search for in their ATS — with real frequencies, not guesses.
Quick answer
The top resume keywords for IT support roles are Troubleshooting, Linux, Ticketing (Zendesk/ServiceNow), Windows, Knowledge base / documentation — measured across 45 full IT support job descriptions from live S&P 500 postings (June 2026). "Troubleshooting" appears in 71.1% of them, and the median posting that states a number asks for 1 year of experience (13 postings). Only 4.4% of the 45 full descriptions list a degree as a requirement.
What the IT support data shows
3 terms show up in at least 40% of the 45 IT support job descriptions we read: Troubleshooting (71.1%), Linux (53.3%) and Ticketing (Zendesk/ServiceNow) (48.9%). Those are the closest thing this role has to a standard keyword set, so an IT support resume that lacks them is easy for a recruiter's ATS search to skip.
What sets IT support postings apart from the average S&P 500 posting: macOS appears 20x as often, and Windows 14.5x and Linux 13x. These are the role-specific terms generic resume advice tends to miss.
Some terms travel together. Of the 15 IT support postings that mention Windows, 11 (73.3%) also mention Ticketing (Zendesk/ServiceNow), against 48.9% across the role. If you list one, check whether you can honestly back up the other.
32.5% of the 80 IT support postings we indexed carry a senior, staff, lead, principal or manager title, and 18.8% are explicitly junior, associate or entry level.
80
Postings indexed
45 with full text
1 yr
Median experience asked
n = 13
4.4%
List a degree as required
n = 45
33.3%
Mention remote work
n = 45
The 18 keywords, ranked by how often they appear
Percentage of the 45 full IT support job descriptions containing each term, and how much more often it appears than in the average S&P 500 posting. Only include a keyword if it's truthful for you — then verify your coverage against a real posting with the free checker (no signup).
| Keyword | % of postings | vs. average | Frequency bar |
|---|---|---|---|
| Troubleshooting | 71.1% (32) | 7.6x | |
| Linux | 53.3% (24) | 13x | |
| Ticketing (Zendesk/ServiceNow) | 48.9% (22) | 11.4x | |
| Windows | 33.3% (15) | 14.5x | |
| Knowledge base / documentation | 26.7% (12) | 2x | |
| Bilingual / multilingual | 24.4% (11) | 2.9x | |
| Escalation management | 24.4% (11) | 4.8x | |
| Hardware / device support | 24.4% (11) | 7.9x | |
| Customer-facing communication | 22.2% (10) | 2.9x | |
| macOS | 20% (9) | 20x | |
| Networking (TCP/IP, DNS) | 15.6% (7) | 4.6x | |
| Python | 11.1% (5) | 1x | |
| SLAs | 11.1% (5) | 4.4x | |
| Salesforce | 8.9% (4) | 1.2x | |
| Microsoft 365 / Google Workspace | 8.9% (4) | 9.9x | |
| Customer onboarding | 8.9% (4) | 1.1x | |
| Scripting (Bash/PowerShell) | 6.7% (3) | 5.6x | |
| Active Directory | 6.7% (3) | 9.6x |
Source: 45 full job descriptions out of 80 indexed postings, June 2026. Counts in brackets are postings; "vs. average" compares with all full-text postings in the study. Employer boilerplate (company intros, benefits, EEO text) is excluded before counting. Full methodology & dataset.
What IT support postings actually require
Based on the 45 postings with a full description.
- Experience: median 1 year where stated (13 postings specified a number).
- Degrees: 4.4% list a degree as a requirement and 40% mention one at all.
- Work mode: 33.3% mention remote, 64.4% hybrid, 20% on-site language. Mirror the posting's location language in your resume header if you match it.
- Salary: 8.9% of postings disclosed a range (4 of 45) — too few to report a median.
Job titles in this group include “IT Support Technician Intern”, “Application Support Engineer”, “Director, Technical Support”, “Aftermarket - Technical Support I”, “Software Engineer, Community Support Engineering”, “Support Engineer”.
Who's hiring IT support roles — and which ATS reads your resume
Top S&P 500 employers by live IT support posting count in our crawl (all 80 postings). The ATS matters: Greenhouse handles 60%, Workday handles 37.5% of detected postings in this role — each parses resumes differently.
Check any other company in the free ATS Finder.
How to use these IT support keywords without keyword-stuffing
- Use the exact wording for the core terms. "Troubleshooting", "Linux" and "Ticketing" each appear in 40% or more of IT support postings, and ATS search is literal, so a near-synonym won't match. Put each one in your skills section and in at least one experience bullet.
- Use the specialist terms as differentiators. Windows (33.3%), Escalation management (24.4%) and Hardware / device support (24.4%) are less common but far more frequent here than in postings overall. When a posting asks for one and you have it, name it outright. These are the terms that separate an IT support resume from a generic one.
- State your years of experience. Among the 13 IT support postings that named a number, the median ask was 1 year. Write it in your summary ("1+ years in…") instead of making the recruiter count dates.
- Lead with skills, not credentials. Only 40% of the 45 full IT support descriptions mention a degree at all, and 4.4% list one as a requirement, so your top third should be skills and results.
Recruiters search their ATS for literal strings, then read the bullets around the match, so each keyword needs to live inside an achievement. For example (illustrative — use your own numbers):
"Resolved 35 tickets a day across Windows, macOS and Linux, wrote 40 knowledge-base articles and cut escalations 25%"
Placement rules are in our keyword placement guide, and the full tailoring workflow is in how to tailor your resume to a job description.
Frequently asked questions
- What are the most important resume keywords for IT support roles?
- In the 45 full IT support job descriptions we analyzed (from 80 indexed S&P 500 postings), the most frequent resume-relevant terms were Troubleshooting (71.1%), Linux (53.3%), Ticketing (Zendesk/ServiceNow) (48.9%). But the posting in front of you always wins: tailor to its exact language first, and use this list to fill gaps it implies but doesn't spell out.
- Do S&P 500 IT support jobs require a degree?
- 4.4% of the 45 full IT support descriptions we analyzed list a degree as a requirement, and 40% mention one at all. Where a posting named a number of years, the median was 1 (13 postings).
- Should I copy these keywords into my resume verbatim?
- Use the exact phrasing where it is truthful — ATS keyword search is literal, so "Kubernetes" matches "Kubernetes", not "container orchestration". But every keyword must be attached to real experience: recruiters spot keyword stuffing instantly, and an interview will expose it.
- Where does this data come from?
- Our June 2026 study of all 503 S&P 500 careers sites and 80 live IT support postings (45 with full descriptions, from 9 employers, for the keyword, experience, degree and work-mode figures). Postings are grouped by job title, e.g. "IT Support Technician Intern", "Application Support Engineer", "Director, Technical Support". The methodology and downloadable dataset are in the research post.
Related roles
Keywords for other roles
Data snapshot: 2026-06-17. Updated with each refresh of our S&P 500 hiring study.