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Software Tester Jobs in O Fallon, MO (NOW HIRING)

Beta.SoftSystems

Software Tester

Saint Louis, MO

Must be highly competent in deciphering service call requests and responses. 3+ years' experience using a functional automation testing tool. Comprehensive understanding of the software development ...

MasterCard

Manager Software Engineering

O Fallon, MO · On-site

... testing solutions to increase efficiency, reliability, and software quality Drive automation throughout the software development lifecycle, including testing strategy, execution, validation, and ...

MasterCard

Software Engineer II

O Fallon, MO · On-site

We're looking for talented Software Testing Engineers to design and develop regression and integration test automation for fraud applications using advanced technologies that are revolutionizing ...

Mastercard, Inc.

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

We're looking for talented Software Testing Engineers to design and develop regression and integration test automation for fraud applications using advanced technologies that are revolutionizing ...

Mastercard

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

We're looking for talented Software Testing Engineers to design and develop regression and integration test automation for fraud applications using advanced technologies that are revolutionizing ...

Mastercard

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

We're looking for talented Software Testing Engineers to design and develop regression and integration test automation for fraud applications using advanced technologies that are revolutionizing ...

Boeing

Software Systems Engineer

Hazelwood, MO · On-site

$163K - $193K/yr

The successful candidate for the role of Software Systems Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

Boeing

Software Systems Engineer

Hazelwood, MO

$163K - $193K/yr

The successful candidate for the role of Software Systems Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

Boeing

Software Systems Engineer

Hazelwood, MO · On-site

$163K - $193K/yr

The successful candidate for the role of Software Systems Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

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All JobsSoftware Tester JobsSoftware Tester Jobs in O'Fallon, MO

Software Tester information

See O Fallon, MO salary details

$17

$40

$65

How much do software tester jobs pay per hour?

As of Aug 30, 2026, the average hourly pay for software tester in O'Fallon, MO is $40.70, according to ZipRecruiter salary data. Most workers in this role earn between $31.25 and $49.04 per hour, depending on experience, location, and employer.

What is a software tester?

A software tester conducts the QA (quality assurance) testing phase of the project lifecycle. Responsibilities include examining software or websites as a user would—as it will be used post-release. During these test cases, the software tester records any issues (“bugs”) and reports them to the development team so they can be fixed. A software tester explores the software with a critical mindset, assesses the functionality and overall experience, and reports their findings.

What are the key skills and qualifications needed to thrive as a software tester, and why are they important?

To thrive as a Software Tester, you need a solid understanding of software development life cycles, attention to detail, and knowledge of testing methodologies, often supported by a degree in computer science or related certifications. Familiarity with testing tools such as Selenium, JIRA, and experience with automated and manual testing systems is typically required. Strong analytical thinking, effective communication, and problem-solving skills help testers identify, document, and resolve issues efficiently. These skills ensure software quality, minimize defects, and contribute to successful product releases.

What are some common challenges software testers face when collaborating with developers, and how can these be effectively addressed?

Software testers often encounter challenges such as communication gaps with developers, differences in understanding requirements, and tight deadlines for bug fixes. These issues can lead to misunderstandings about defect severity or unclear expectations regarding test coverage. Effective strategies include maintaining open, respectful communication, participating in agile ceremonies like daily stand-ups, and using collaborative tools to track issues and share feedback. Building strong professional relationships and fostering a culture of mutual respect greatly enhances teamwork and leads to higher-quality software.

What is the difference between Software Tester vs QA Analyst?

AspectSoftware TesterQA Analyst
CertificationsISTQB, CSTEISTQB, CSTE
Work EnvironmentTesting teams, development projectsQuality assurance teams, project management
Industry UsageSoftware companies, IT firmsSoftware companies, IT firms
Primary FocusExecuting test cases, finding bugsDesigning test plans, process improvement

While both Software Testers and QA Analysts work to ensure software quality, Software Testers primarily focus on executing test cases and identifying bugs. QA Analysts take a broader role in designing testing strategies and improving quality processes. Both roles require similar certifications and are integral to software development teams, but their responsibilities differ in scope and focus.

How much do software testers get paid?

Software testers' salaries vary based on experience, location, and industry, but the average annual pay ranges from $50,000 to $80,000. Entry-level testers typically earn less, while those with specialized skills or certifications can earn higher salaries, especially in competitive markets or with experience in automation tools.

Is a software tester a difficult job?

A software tester's job involves identifying bugs and verifying software functionality, which can be challenging depending on project complexity and deadlines. It requires attention to detail, knowledge of testing tools, and often involves repetitive tasks, but it can be manageable with experience and proper training.

Is software testing still in demand?

Software testing remains in demand as companies prioritize quality assurance and software reliability. Testers with skills in automation tools like Selenium and scripting are especially sought after, and the role is expected to grow with ongoing technological advancements.
More about Software Tester jobs

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For Software Tester jobs in O'Fallon, MO, the most frequently searched job titles are:

What job categories do people searching Software Tester jobs in O'Fallon, MO look for?

The top searched job categories for Software Tester jobs in O'Fallon, MO are:

What cities near O'Fallon, MO are hiring for Software Tester jobs?

Cities near O'Fallon, MO with the most Software Tester job openings:

Software Tester jobs near you
Infographic showing various Software Tester job openings in O'Fallon, MO as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 12% Part Time, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $84,652 per year, or $40.7 per hour.

Software Tester

Beta.SoftSystems

Saint Louis, MO

Full-time

Re-posted 11 days ago

Job description

Company Description

360 IT Professionals is one of the fastest growing IT Staffing & Consulting Company in the Silicon Valley.

In the ever-changing technological world 360 IT Professionals connects the best of IT professionals with the leading companies, day in- day out. The professional team on board uses its in-depth industry knowledge and insight to guide our consultants helping them bag both temporary and permanent assignments by anticipating the needs of leading tech companies.


Today, 360 IT Professionals is recognized for its high quality IT staffing solutions, providing lean consulting methodologies and Information Technology implementation for Fortune 500 Companies


Job Description

Required Skills/Experience:


3+ years' experience using a performance testing tool (e.g. WebLoad) with heavy emphasis on Javascript. 

Must be highly competent in deciphering service call requests and responses.

3+ years' experience using a functional automation testing tool.

Comprehensive understanding of the software development lifecycle.

Experience working with current web based technologies.

Solid SQL skills.

Strong organizational skills, written and oral communication skills and problem solving skills

Desired Skills/Experience:


RadView/Web Load performance testing tool experience.

Work and/or educational experience in an agricultural, biotechnology, or life sciences industry.


Additional Information

Interested candidates can reach me on my number @ 510-254-3300 Ext-122  M: 408 627 7708

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