O'Fallon, United States currently has 137 open positions that JobYap tracks continuously from company careers sites, across 1 company, with the most roles at Mastercard. Over the last 30 days it added 87 new postings and removed 48, a net increase of 39. The 133 postings that publish a salary average about 170k USD a year.

137
OpenPositions
+39
ChangeLast 30d
170k USD
AverageSalary
1
HiringCompanies
Open Positions · Last 30 Days
144
Jul 21Aug 4Aug 19
Daily Activity · Last 30 Days
AddedRemoved
Weekend
Weekend
Weekend
Weekend
+8
−7
Jul 21Aug 4Aug 19
Job Ages
  • ≤ 1 week15
  • 1 - 2 weeks9
  • 2 - 4 weeks44
  • 1 - 2 months50
  • 2 - 3 months9
  • 3 - 6 months10
  • 6 - 12 months0
  • 1+ years0
Salaries
  • 50k - 100k3
  • 100k - 150k53
  • 150k - 200k48
  • 200k - 250k20
  • 250k - 300k8
  • 300k - 350k1
Annualized range midpoints in USD. 4 without a published salary.
Companies

Open Positions at O'Fallon, United States

137 open positions
Open in job feed

Senior Analyst, Real Estate Services

1 days ago
88k - 141k USD

Automation Engineer

1 days ago
96k - 163k USD

Senior Software Engineer

1 days ago
115k - 184k USD

Lead, AI Security Engineer

2 days ago
140k - 231k USD

Manager, Chief of Staff

2 days ago
113k - 223k USD

Manager, Product Management

2 days ago
130k - 221k USD

Senior AI Engineer

5 days ago
115k - 184k USD

Principal Workday Technical Architect

5 days ago
152k - 297k USD

Director, Partner Lifecycle Marketing

5 days ago
151k - 299k USD

Product Manager- Technical II

5 days ago
83k - 137k USD

Senior Software Engineer

5 days ago
115k - 184k USD

Director, Security Platform Product Management

5 days ago
156k - 305k USD

Senior Software Engineer

6 days ago
115k - 184k USD

Senior Data Engineer

6 days ago
115k - 184k USD

Lead Technical Program Manager

6 days ago
122k - 207k USD

Principal Software Development Engineer

6 days ago
170k - 323k USD

Director, Software Engineering

6 days ago
170k - 281k USD

Manager, Total Rewards - Immigration Strategy

6 days ago
112k - 179k USD

Manager, Business Development

8 days ago
126k - 202k USD

Manager - Franchise Customer Onboarding & Partnerships NAM

8 days ago
117k - 193k USD

Hiring in O'Fallon, United States: Common Questions

Who is hiring in O'Fallon, United States right now?

One company is hiring in O'Fallon, United States right now: Mastercard. JobYap tracks 137 open positions there in total, all taken live from official company careers sites.

Which company has the most job openings in O'Fallon, United States?

Mastercard is currently the only company with open positions in O'Fallon, United States on JobYap, listing 137.

How many job openings are there in O'Fallon, United States?

As of August 2026, JobYap lists 137 open positions in O'Fallon, United States across 1 company, all collected directly from official company careers sites.

Are there remote jobs in O'Fallon, United States?

None of the 137 current postings in O'Fallon, United States explicitly advertise a remote or hybrid arrangement on JobYap. Employers that leave the work mode unstated may still offer flexibility on individual roles.

How much do jobs in O'Fallon, United States pay?

Advertised salaries in O'Fallon, United States average about 170k USD a year, based on the 133 of 137 open positions that publish a salary range on JobYap.

Do employers in O'Fallon, United States list salaries on their job postings?

133 of the 137 current postings in O'Fallon, United States (about 97%) include a published salary range on JobYap. Ranges are extracted directly from each job description, so the pay data reflects what employers themselves advertise.

Is hiring in O'Fallon, United States growing or slowing?

Growing. Over the last 30 days 87 new postings appeared in O'Fallon, United States and 48 were removed, a net gain of 39 in JobYap's tracking.

Are the job listings in O'Fallon, United States still open?

Yes. JobYap constantly updates from every tracked company's careers site, the primary source, and delists postings that disappear, so stale or ghost listings are filtered out. 68 of the 137 open positions in O'Fallon, United States were posted within the last 30 days, 15 of those within the last week.

How do I find a job in O'Fallon, United States?

Browse the live openings on this page or open JobYap's job feed filtered to O'Fallon, United States. Every posting on JobYap links to the employer's official application page, shows salary data when the employer publishes it, and carries an open discussion thread for questions about the role.

Where does this O'Fallon, United States hiring data come from?

From the official careers sites of the companies hiring in O'Fallon, United States, which JobYap (jobyap.com) keeps constantly updated from the primary source. Openings, salaries, locations and work modes are extracted from the postings themselves; JobYap's tracking of O'Fallon, United States goes back to July 2026.

Open-position counts are reconstructed from when each listing was seen on the company's careers site: a job counts as open from its publish date (or first sighting) until it was last confirmed, so a posting that briefly disappears and returns reads as continuously open. Added counts postings published during the period; Removed counts postings that disappeared from the company's careers site, as detected on the next update.