41 software engineering jobs are open in St. Louis, MO area, on employers' own career pages, from 9 employers. The three employers with the most openings are Boeing, Mastercard and Accenture Federal Services, with 33 of the 41. 112 percent of these postings list a pay range. The middle half of listed pay runs from $149,000 to $189,000, with a median of $149,500. The places with the most are O'Fallon, MO (23); Berkeley, MO (16); Hazelwood, MO (3). A typical posting has been open 7 days.
This page covers the St. Louis, MO-IL metro area as defined by the U.S. Census Bureau. It includes O'Fallon, MO; Berkeley, MO; Hazelwood, MO, and 1 other places.
Applications here go through Workday (87%), Greenhouse (9%), SmartRecruiters (4%).
Open software engineering jobs
Mastercard
O'Fallon, MO · Posted Oct 15
Data Engineer II
$92,000 to $147,000 a year20% below the median listed hereSeen todayNew this week
Mastercard’s Enterprise Credit Risk (ECR) team is seeking a Data Engineer II to design, build, and maintain data platforms and products that support credit…
Mastercard
O'Fallon, MO · Posted Oct 15
Lead Site Reliability Engineer
Seen todayNew this week
We believe that our differences enable us to be a better team - one that makes better decisions, drives innovation, and delivers better business results.
Mastercard
O'Fallon, MO · Posted Oct 14
Lead Software Development Engineer
$140,000 to $231,000 a year24% above the median listed hereSeen todayNew this week
The Cyber & Intelligence (C&I) organization is responsible for Mastercard's security and risk-related product development efforts, delivering innovative…
Mastercard
O'Fallon, MO · Posted Oct 13
Senior Software Engineer - Java Full Stack & AI
$115,000 to $184,000 a yearSeen todayNew this week
As a Senior Software Engineer, you will independently deliver complex solutions, influence technical design decisions, and help drive engineering excellence…
Mastercard
O'Fallon, MO · Posted Oct 13
Software Engineer II
$92,000 to $147,000 a year20% below the median listed hereSeen todayNew this week
Mastercard’s Fraud Products team develops capabilities for the Decision Management Platform, which supports solutions designed to combat fraud and validate…
Mastercard
O'Fallon, MO · Posted Oct 12
Manager Software Engineering
$140,000 to $231,000 a year24% above the median listed hereSeen todayNew this week
Leads a team of software engineers delivering enterprise integration solutions across cloud-based platforms while remaining hands-on in Core Java development,…
Mastercard
O'Fallon, MO · Posted Oct 7
Software Engineer I
$72,000 to $115,000 a year37% below the median listed hereSeen today
As a Software Engineer I, you will collaborate with engineers and product partners to build, test, and enhance solutions that support the movement of…
Mastercard
O'Fallon, MO · Posted Oct 6
Lead Software Engineer
$140,000 to $231,000 a year24% above the median listed hereSeen today
The primary purpose of this role is to develop and deliver best-of-breed authentication products for e-commerce transactional use cases that will drive uptake…
Mastercard
O'Fallon, MO · Posted Oct 6
Senior Software Engineer
$115,000 to $184,000 a yearSeen today
Join a team responsible for building the authentication and security solutions that help protect digital interactions across Mastercard's Identity Solutions…
Mastercard
O'Fallon, MO · Posted Oct 6
Director, Mainframe Software Engineering
$170,000 to $281,000 a year51% above the median listed hereSeen today
Mastercard is seeking a Director, Software Engineering to lead high-performing engineering teams responsible for building and evolving enterprise-scale…
Places covered
| Place | Open jobs |
|---|---|
| O'Fallon, MO | 23 |
| Berkeley, MO | 16 |
| Hazelwood, MO | 3 |
| Arnold, MO | 1 |
Places with their own page link to it.
Who is hiring software engineering in St. Louis, MO area
| Employer | Open jobs | Typical posted pay |
|---|---|---|
| Boeing | 19 | $189,000 |
| Mastercard | 10 | $149,500 |
| Accenture Federal Services | 4 | |
| Cigna | 2 | |
| Leidos | 2 | |
| CACI | 1 | |
| Cardinal Health | 1 | |
| Centraprise | 1 |
Counts are open postings on each employer's own career page. Staffing firms and job boards are left out.
How to apply
- Open the job from the list and read the requirements and the pay line.
- Check what the posting asks you to bring (resume, cover letter, questions).
- Apply on the employer's site.
- Keep a note of where you applied.
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How many software engineering jobs are open in St. Louis, MO area?
41 on Oct 18, 2026, from 9 employers, read from employers' own career pages. The number changes as employers post and close roles.
Which places around St. Louis, MO have the most software engineering jobs?
O'Fallon, MO (23); Berkeley, MO (16); Hazelwood, MO (3).
How much do software engineering jobs in St. Louis, MO area pay?
112 percent of postings list a pay range. The median listed pay is $149,500 and the middle half runs from $149,000 to $189,000. A listed range is the employer's budget for the role, not an offer.
Which employers are hiring software engineering in St. Louis, MO area?
The employers with the most openings are Boeing (19), Mastercard (10), Accenture Federal Services (4). The full list is above.
How long do these postings stay open?
A typical posting has been open 7 days, and 7 percent have been open more than 60 days. An old posting is not always a closed one.
How do I apply?
Each job links to the employer's own application page. Open the posting, read the requirements and apply there. If you want a score for how well your resume matches a job, create a free Second Summit account and we score it with the reasons.
Where does this list come from?
We read employers' own career pages and USAJOBS. We do not list jobs from job boards or search services, and we do not estimate pay.