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Senior Software Development Engineer In Test Jobs in Ballwin, MO

The Timberline Group

Senior Software Engineer

Saint Louis, MO · On-site +1

$119K - $157K/yr

Design, implement, review, test, debug, and document high-quality software * Discuss, review and ... Efficiently identify, prioritize and complete tasks in agile scrum software development life cycle

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

The position requires strong expertise in Java-based application development, Spring Boot, Kafka ... Design, develop, test, deploy, and support scalable software solutions that power Mastercard ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

The position requires strong expertise in Java-based application development, Spring Boot, Kafka ... Role As a Senior Software Engineer, you will: • Design, develop, test, deploy, and support ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... in test automation, code coverage, and system reliability • Analyze and optimize system ... development workflows Corporate Security Responsibility All activities involving access to ...

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

... in test automation, code coverage, and system reliability Analyze and optimize system performance ... development workflows Corporate Security Responsibility All activities involving access to ...

MasterCard

Senior Software Engineer- RPPS Platform

O Fallon, MO · Remote

$114K - $151K/yr

The position requires strong expertise in Java, Spring Boot, API development, and modern front-end ... Design, develop, test, deploy, and maintain scalable software applications that support Mastercard ...

Boeing

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

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

Boeing

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

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

Boeing

Senior Software Engineer

Hazelwood, MO

$133K - $173K/yr

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

Boeing

Senior Software Engineer

Hazelwood, MO

$133K - $173K/yr

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

Boeing

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

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

Boeing

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

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

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... development, testing, deployment, configuration, and documentation -Participate in team ... Improve test automation, code coverage, and overall software quality -Analyze and optimize ...

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

... development, testing, deployment, configuration, and documentation -Participate in team ... Improve test automation, code coverage, and overall software quality -Analyze and optimize ...

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Senior Software Development Engineer In Test information

See Ballwin, MO salary details

$21.9K

$122.1K

$159K

How much do senior software development engineer in test jobs pay per year?

As of Jul 14, 2026, the average yearly pay for senior software development engineer in test in Ballwin, MO is $122,098.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,500.00 and $139,500.00 per year, depending on experience, location, and employer.

How does a Senior Software Development Engineer In Test typically collaborate with development and product teams to ensure software quality?

As a Senior Software Development Engineer In Test (SDET), you will work closely with both development and product teams throughout the software development lifecycle. This includes participating in design and requirements discussions to identify potential test cases early, contributing to test automation strategies, and providing feedback on testability and quality risks. SDETs often pair with developers to review code, co-create test plans, and triage bugs together, ensuring that testing is fully integrated into the CI/CD pipeline. Effective communication and cross-team collaboration are essential for proactively identifying issues and maintaining high software quality standards.

What engineers make $500,000?

Senior Software Development Engineers In Test (SDETs) with extensive experience, specialized skills in automation, and working at large tech companies or in high-cost-of-living regions can earn $500,000 or more annually. Compensation often includes base salary, bonuses, and stock options, especially for those in leadership roles or with rare expertise in testing automation, cloud platforms, or security tools.

Will QA or SDET get replaced by AI?

Senior Software Development Engineers in Test (SDETs) and QA professionals perform complex testing tasks that require critical thinking, creativity, and understanding of system architecture, which AI currently cannot fully replicate. While AI tools can automate repetitive testing and assist in identifying issues, human oversight and expertise remain essential for designing test strategies, interpreting results, and ensuring software quality in a fast-evolving environment.

What is the SDET engineer's salary?

The salary for a Senior Software Development Engineer in Test (SDET) typically ranges from $90,000 to $140,000 annually, depending on experience, location, and company size. SDETs with strong programming skills and experience with automation tools like Selenium or Jenkins tend to earn higher salaries.

Is SDET still in demand?

Senior Software Development Engineers in Test (SDETs) are in strong demand due to the increasing emphasis on quality assurance and automation in software development. SDETs with skills in programming, test automation tools, and CI/CD pipelines are particularly sought after across various industries, ensuring continuous testing and faster release cycles.

What is the difference between Senior Software Development Engineer In Test vs Software Development Engineer In Test?

AspectSenior Software Development Engineer In TestSoftware Development Engineer In Test
ExperienceTypically 5+ years in testing and developmentEntry to mid-level, 1-3 years experience
ResponsibilitiesDesigns complex test frameworks, mentors juniors, leads testing initiativesDevelops test cases, automates tests, executes testing tasks
Skills & CertificationsAdvanced coding, automation, testing tools, leadership skillsProgramming, automation, testing tools
Work EnvironmentCollaborates with cross-functional teams, often in Agile settingsWorks closely with developers, focuses on automation and manual testing

In summary, a Senior Software Development Engineer In Test has more experience, leadership responsibilities, and strategic testing roles compared to a Software Development Engineer In Test, who primarily focuses on developing and executing tests.

What are the key skills and qualifications needed to thrive as a Senior Software Development Engineer In Test, and why are they important?

To thrive as a Senior Software Development Engineer In Test, you need advanced programming skills, deep knowledge of software testing methodologies, and a bachelor's degree in computer science or a related field. Expertise with automation frameworks (such as Selenium, Cypress, or Appium), CI/CD tools, and scripting languages is typically required, along with relevant certifications like ISTQB. Strong analytical thinking, problem-solving, and effective communication are crucial soft skills for collaborating with cross-functional teams and driving quality initiatives. These capabilities ensure rigorous test coverage, faster release cycles, and high-quality software products.

What does a Senior Software Development Engineer in Test (SDET) do?

A Senior Software Development Engineer in Test (SDET) is responsible for designing, developing, and maintaining automated test frameworks and tools to ensure the quality and reliability of software products. They work closely with development and QA teams to identify test requirements, create robust test cases, and integrate automated tests into the CI/CD pipeline. In addition to coding and scripting, Senior SDETs mentor junior team members, analyze test results, and help troubleshoot complex issues to continuously improve software quality. Their expertise bridges the gap between development and testing, ensuring both speed and quality in software releases.
What job categories do people searching Senior Software Development Engineer In Test jobs in Ballwin, MO look for? The top searched job categories for Senior Software Development Engineer In Test jobs in Ballwin, MO are:
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Senior Software Development Engineer In Test jobs near you
Senior Software Engineer

Senior Software Engineer

The Timberline Group

Saint Louis, MO • On-site, Remote

$119K - $157K/yr

Full-time

Posted 26 days ago

Job description

Description of role:
We are looking for a Senior Software Engineer to produce and implement functional software solutions. You will work with upper management to define software requirements and take the lead on operational and technical projects.
In this role, you should be able to work independently with little supervision. You should have excellent organization and problem-solving skills and be comfortable in an Agile Scrum SDLC. If you also have hands-on experience with backend software development, we would like to meet you.
Your goal will be to develop high-quality software that is aligned with user needs and business goals.
Responsibilities
  • Design, implement, review, test, debug, and document high-quality software
  • Discuss, review and identify potential improvements in new features through code review
  • Brainstorm, challenge, support and convey new ideas proposed by yourself and the team
  • Accurately reproduce and address production software deficiencies in a timely manner
  • Efficiently identify, prioritize and complete tasks in agile scrum software development life cycle
  • Produce clean, readable, testable and efficient code by adhering to standards and conventions
  • Automate and optimize business processes via development of scripts, tools and applications
  • Collaborate with internal teams and vendors to maintain and improve products
  • Evaluate and select the most appropriate technologies that meets business requirements
Requirements
  • Proven experience as a Senior Software Engineer
  • Demonstrated ability to work a project from start through completion
  • Must be self-directed and able to work independently
  • Extensive experience in software development
  • Familiarity with Event Driven Architectures
  • Extensive experience in designing and implementing solutions
  • Expert in C# .Net Core
  • Experience with API driven development and REST web services
  • Experience in AWS (Jenkins, Nuget, k8s is a plus)
  • Strong git bash skills
  • Analytical mind with problem-solving aptitude
  • Excellent organizational and leadership skills
  • BSc/BA in Computer Science or other technical degree
Personal Attributes:
  • Open communication
  • Genuine enthusiasm for financial services, digital assets and trading applications
  • Must be a team player that enjoys solving challenging problems
  • Desire to continue learning and constantly improve skills
  • Ability to mentor more junior developers

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