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Senior Software Development Engineer In Test Jobs in Saint Peters, MO

VRProIT

Java - SDET

Saint Louis, MO

Title: Java - SDET Location: St Louis, MO Duration: 3 yrs SDET ROLE * Let me be very clear here - these are NOT traditional QA roles. I.e. Selenium-only or QTP/UFT-only guys who are QA Engineers.

VRProIT

Java - SDET

Saint Louis, MO · On-site +1

Java - SDET Location: St Louis, MO Duration: 3 yrs SDET ROLE * Let me be very clear here - these are NOT traditional QA roles. I.e. Selenium-only or QTP/UFT-only guys who are QA Engineers. Instead, I ...

Know Ink, LLC

Quality Engineer

Saint Louis, MO · On-site

$67K - $87K/yr

SDET - Software Development Engineer in Test KNOWiNK -- St. Louis, Missouri (An On-site Role) At KNOWiNK, we build technology that powers elections across the country. That means quality isn't just a ...

MasterCard

Senior Software Development Engineer

O Fallon, MO · On-site +1

$114K - $151K/yr

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories ... Title and Summary Senior Software Development Engineer Overview The Senior Software Development ...

TriOptus LLC

Sr Software Development Engineer

MO · On-site

$114K - $151K/yr

Job Title: Sr. Software Development Engineer Location: O'fallon, MO Duration: 12+ months Primary ... in adherence with MasterCard standards, processes and best practices. • Participate on complex ...

MasterCard

Senior Software Development Engineer

O Fallon, MO · On-site +1

$114K - $151K/yr

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories ... Title and Summary Senior Software Development Engineer Overview The Senior Software Development ...

InterSources Inc

QA Test Engineer

Chesterfield, MO · On-site

$40.75 - $55.75/hr

Responsibilities : • 3+ years in QA automation or SDET-type work (adjust by level); 1+ year exposure to AI/LLM or ML-driven features is a plus. • Strong test automation in Python and/or Java ...

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 · On-site

$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 ...

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Senior Software Development Engineer In Test information

See Saint Peters, MO salary details

$21.5K

$120.1K

$156.3K

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

As of Aug 9, 2026, the average yearly pay for senior software development engineer in test in Saint Peters, MO is $120,057.00, according to ZipRecruiter salary data. Most workers in this role earn between $105,700.00 and $137,200.00 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 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 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 cities near Saint Peters, MO are hiring for Senior Software Development Engineer In Test jobs? Cities near Saint Peters, MO with the most Senior Software Development Engineer In Test job openings:
Senior Software Development Engineer In Test jobs near you

SENIOR SOFTWARE DEVELOPMENT ENGINEER IN TEST (Sr. SDET) at Resource Informatics Group Inc O Fal[...]

Shell Lubricants Hub Hamburg

O Fallon, MO • On-site

$90 - $120/hr

Other

Posted 4 days ago

Job description

SENIOR SOFTWARE DEVELOPMENT ENGINEER IN TEST (Sr. SDET) job at Resource Informatics Group Inc. O Fallon, MO.

Role: SENIOR SOFTWARE DEVELOPMENT ENGINEER IN TEST (Sr. SDET)

Location: O’fallon MO

Visa: USC/GC Preferred

Duration: 9 Months

Interview: Phone/Skype

Overview
  • Push Payments Development team owns a number of applications, primarily focusing on the Mastercard Send application.
  • Mastercard send is an API based application which primarily focuses on P2P and Disbursement transactions and is heavily integration with Mastercard core applications.
  • Automate UI, API and Batch regression test suites.
  • Integrate automation tests in CI/CD pipeline.
  • Participate in and provide direction to testing activities to ensure the quality and functionality of assigned MasterCard developed systems.

Do you want to be a part of a collaborative team environment

Are you motivated to stay on the cutting edge of digital payments technology

Role
  • Defect management and oversight
  • Performance Testing
  • Automated regression testing
  • Status reporting and metrics creation
  • Point of escalation for issues discovered during the testing phase
All About You
  • Expertise knowledge using Selenium and any BDD framework (Cucumber, Jasmine or JBehave)
  • Intermediate Knowledge in REST API testing and knowledge of any API automation framework (Restassured, Spock or Karate).
  • Intermediate Knowledge of StormRunner or other performance testing tools
  • Intermediate knowledge in core Java, Groovy, Node.js, and ReadyAPI
  • Advanced experience writing user stories and acceptance criteria
  • Strong communication and problem solving skills
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