Testing jobs in o'fallon USA
81 testing jobs found in o'fallon: showing 1 - 50
Product Testing Panelist - Remote Paid Research
Company: Maxion Research |
Get early access to new products and get paid to tell companies what you think. Maxion Research matches everyday people with paid product tests and remote studies. Active members earn up to $790 a wLocation: O'Fallon, MO, USA
| Salary: US$790 per week | Date posted: 06 Aug 2026
Lead Postgresql Engineer
Company: Mastercard |
, and related technologies. Build and enhance CI/CD integration for database provisioning, deployments, upgrades, testingLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 05 Aug 2026
Principal, Technology Risk Analyst
Company: Mastercard |
, and drive effective control testing and remediation activities. Your work will ensure risk and control strategies are measurable... and execute risk-based control testing strategies to assess control design and operating effectiveness, identify deficienciesLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 05 Aug 2026
Senior Software Development Engineer
Company: Mastercard |
and implement comprehensive unit, functional, and integration testing strategies. Analyze, optimize, and improve application... and resilient systems. Experience implementing automated testing strategies and quality engineering practices. Strong knowledgeLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 05 Aug 2026
Operating Engineer - Event Facility
Company: Jones Lang LaSalle |
, and safety system testing. Document all activities in the computerized maintenance management system (CMMS) with accurate workLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 05 Aug 2026
Lead Software Engineer
Company: Mastercard |
technologies and recommend solutions that improve products, services, or engineering efficiency. Testing & Quality Engineering... -Establish and promote standards for unit, functional, and integration testing. -Ensure software solutions are thoroughlyLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 05 Aug 2026
Senior Software Engineer
Company: Mastercard |
, customer experience, testing, and simplification) Strong understanding of software design, software architecture, dataLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 04 Aug 2026
General Facilities Maintenance Technician
Company: Walmart |
maintenance calls Inspecting, operating, or testing facilities, equipment, or fixtures to diagnose issues CompleteLocation: O'Fallon, MO, USA
| Salary: US$45760 - 83200 per year | Date posted: 03 Aug 2026
Skilled - Welder
Company: QPS Employment Group |
, and weld pieces, setting up and measuring assemblies - Verify welding results by inspecting and testing welds - UpdateLocation: O'Fallon, MO, USA
| Salary: US$28 - 35 per hour | Date posted: 01 Aug 2026
Senior Specialist, Payroll Tax & M&a Integration
Company: Mastercard |
implementations and integrations. Coordinate testing of tax calculations, filings, deposits, and reporting. Maintain audit-readyLocation: O'Fallon, MO, USA
| Salary: US$85000 - 132000 per year | Date posted: 31 Jul 2026
Software Engineer Ii - Decision Management Program
Company: Mastercard |
, and customer engagement products. As a Software Engineer II, you will contribute to the design, development, testing, deployment.... Familiarity with CI/CD pipelines and automated testing frameworks. Exposure to PCI, security, or regulatory requirementsLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 31 Jul 2026
Software Engineer Ii
Company: Mastercard |
design, development, documentation, testing, deployment support, and ongoing maintenance. Participate in software design..., and operational readiness. Troubleshoot, diagnose, and resolve technical issues across development, testing, and productionLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 29 Jul 2026
Senior Site Reliability Engineer, Performance Engineering
Company: Mastercard |
throughout the issuer-cardholder relationship. In this role, you will apply your experience in API performance testing... testing, capacity planning, and launch reviews. Build, manage, and maintain robust performance testing suites. MeasureLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 28 Jul 2026
Qualified Medication Aide (qma)
Company: Capital Senior Living |
between meals Maintains patient stability by checking vital signs and weight; testing urine; recording intake and outputLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 25 Jul 2026
Senior Java Full-stack Developer
Company: ICONMA |
Ability to leverage GenAI tools to improve developer productivity Apply AI-assisted coding, testing, documentationLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 25 Jul 2026
Manager, Ai Engineering (tester )
Company: Mastercard |
. This is a highly specialized, hands-on AI testing leadership position dedicated to ensuring our Generative AI, LLM, and agentic systems... frameworks, red-teaming strategies, and LLMOps quality gates while fostering a culture of rigorous, first-class AI testingLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 24 Jul 2026
Aircraft Airframe Component Technician
Company: AVMATS Jet Support |
Position Description Performs inspection, testing, repair, and overhaul of airframe accessory components. PositionLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 24 Jul 2026
Senior Software Engineer
Company: Mastercard |
of software design, architecture, data structures, secure coding, and testing practices. Experience troubleshooting production... SQL Software Design & Architecture Secure Coding Practices Unit, Functional & Integration Testing PerformanceLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 23 Jul 2026
Senior Platform Architect
Company: Mastercard |
in infrastructure performance engineering, including capacity planning, scalability testing, and performance optimization. AdvancedLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 23 Jul 2026
Lead Software Engineer
Company: Korn Ferry |
in SDLC, testing, and security. Guides and mentors junior team members through on-the-job experiences, reviewing workLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 21 Jul 2026
Med Surg Ortho Patient Care Tech-ft
Company: BJC HealthCare |
, phlebotomy, or point of care testing as requested. Collects clinical data and information on patients, and reports changesLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 21 Jul 2026
Desktop Support Specialist
Company: City of O'Fallon |
and remote testing, including running diagnostic programs. Repair equipment, build cables, replace components, and identifyLocation: O'Fallon, MO, USA
| Salary: US$27.28 - 40.92 per hour | Date posted: 20 Jul 2026
Software Engineer I
Company: Mastercard |
while contributing to the development, testing, deployment, and support of business-critical applications. What You Will Do Develop... software quality and reliability. Participate in functional and integration testing activities across applicationsLocation: O'Fallon, MO, USA
| Salary: US$72000 - 115000 per year | Date posted: 20 Jul 2026
Manager, Business Analysis
Company: Mastercard |
, and payment ecosystem evolution Reviews and validates product deliverables through demos, testing activities, and stakeholderLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 18 Jul 2026
Lead Software Engineer
Company: US Tech Solutions |
while promoting best practices in SDLC, testing, and security. Guides and mentors junior team members through on-the-job experiencesLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 18 Jul 2026
Software Engineer I
Company: Mastercard |
while contributing to the development, testing, deployment, and support of business-critical applications. What You Will Do Develop... software quality and reliability. Participate in functional and integration testing activities across applicationsLocation: O'Fallon, MO, USA
| Salary: US$72000 - 115000 per year | Date posted: 18 Jul 2026
Lead Software Development Engineer
Company: Mastercard |
standards for software development, testing, security, operability, and deployment. - Conduct architecture reviews and provide... of transactions daily. - Drive performance engineering initiatives including load testing, capacity planning, scalability analysisLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 18 Jul 2026
Senior Software Development Engineer
Company: Mastercard |
and implement comprehensive unit, functional, and integration testing strategies. Analyze, optimize, and improve application... and resilient systems. Experience implementing automated testing strategies and quality engineering practices. Strong knowledgeLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 18 Jul 2026
Software Engineer Ii
Company: Mastercard |
principles. Experience with automated testing, unit testing, and integration testing. Familiarity with performance optimizationLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 17 Jul 2026
Senior Software Engineer
Company: Mastercard |
to create maintainable and extensible testing and validation systems Contribute to system architecture discussions, ensuring... and testing processes, proactively identifying vulnerabilities and risks Develop and execute testing strategies across all levelsLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
Director, Finance Business Partner - Technology Infrastructure
Company: Mastercard |
improvements Ensures compliance with Enterprise Risk Management [ERM] policies, may perform control testing Manages a teamLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 17 Jul 2026
Senior Software Engineer
Company: Mastercard |
engineering experience with strong technical depth across development, automation, testing, and delivery practices... of unit testing, functional testing, integration testing, regression testing, exploratory testing, and acceptance testingLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
Physical Therapist (pt)
Company: Select Medical |
. Incorporates appropriate standardized testing, required NTR standardized outcome measures, NTR functional neuro evaluationLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 17 Jul 2026
Optometric Technician - Training Provided
Company: Eyecare Partners |
doctor in preliminary testing Verify medical and vision insurances Effectively communicate with patients, doctors... to handle a wide range of duties while using optical equipment to perform the initial testing needed to prepare a patientLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Manager Software Engineering
Company: Mastercard |
standards. Role & Responsibilities Engineering & Technical Leadership Lead the design, development, testing, deployment... software development lifecycle (SDLC), including software design, architecture, coding standards, testing strategies, releaseLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Lead Software Engineer - Level 6
Company: ICONMA |
in SDLC, testing, and security. Guides and mentors junior team members through on-the-job experiences, reviewing workLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Manager, Software Engineering
Company: Mastercard |
to define priorities and execution plans. Ensure teams deliver high-quality software through effective planning, testing... engineering principles, architecture, development methodologies, testing, and operational excellence. Ability to lead technicalLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 14 Jul 2026
Lead Workday Engineer - Integrations And Extend
Company: Mastercard |
architecture, design, development, testing, implementation, documentation, and support of enterprise applications using WorkdayLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 14 Jul 2026
Senior Product Manager - Technical
Company: Mastercard |
should have knowledge of the Dual Message Authorization and Clearing as well as Single Message Debit Financial platform for customer testing... with various payments messages (ISO 8583/20022) Mastercard customer online message testing experience and/or experienceLocation: O'Fallon, MO, USA
| Salary: US$104000 - 177000 per year | Date posted: 09 Jul 2026
Senior Analyst, Product Integration
Company: Mastercard |
for successful implementation and support globally. This role drives product readiness activities, develops scalable implementation and testing.... Develop and maintain implementation guidance, testing approaches, training materials, and delivery documentation. DriveLocation: O'Fallon, MO, USA
| Salary: US$83000 - 137000 per year | Date posted: 09 Jul 2026
Lead Software Engineer
Company: Mastercard |
contribute hands-on development, drive testing strategy, improve system design and testability, and mentor engineers to elevate..., system, and User Acceptance Testing (UAT) activities. Analyze logs, traces, and system behavior to validate functionalityLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Senior Software Engineer
Company: Mastercard |
test coverage through unit, functional, integration, and performance testing practices. Contribute to and influence the..., public key cryptography, JWT, hashing, and digital signatures. Experience with software testing frameworks and methodologiesLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 08 Jul 2026
Director, Finance Business Partner
Company: Mastercard |
with Enterprise Risk Management [ERM] policies, may perform control testing Manages a team, conducts goal setting and performanceLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Manager, Software Engineering
Company: Mastercard |
across software design, development, testing, security, performance, operability, and delivery, ensuring solutions are scalable..., and performance-aware design techniques. Testing & Quality Engineering Establish and promote best practices for unit testingLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Emergency Room Patient Care Tech-ft
Company: BJC HealthCare |
ulcer prevention measures, urinary catheter care, phlebotomy, or point of care testing as requested. Collects clinical dataLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 07 Jul 2026
Emergency Room Patient Care Tech-ft
Company: BJC HealthCare |
testing as requested. Collects clinical data and information on patients, and reports changes in patient status to the nurseLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 07 Jul 2026
Manager, Advertising Technology & Revenue Enablement
Company: Mastercard |
, discovering and defining AI use cases, reporting, and assisting with testing updates and training initiatives. Our primary set.../ Manager, Manager Consultant) in requirement gathering, user story definition, liaising with tech, functional testing and userLocation: O'Fallon, MO, USA
| Salary: US$109000 - 180000 per year | Date posted: 07 Jul 2026
Emergency Room Patient Care Tech-pt
Company: BJC HealthCare |
ulcer prevention measures, urinary catheter care, phlebotomy, or point of care testing as requested. Collects clinical dataLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 07 Jul 2026
Lab Associate Ii - Days
Company: BJC HealthCare |
, and orthopedics. Laboratory Services provide on-site services 24 hours per day, 7 days per week. Point of Care Testing provides... immediate diagnostics for emergency situations and On-site patient testing services include: Chemistry -- Hematology, Blood BankLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 06 Jul 2026
Lifeguard/swim Instructor
Company: City of O'Fallon |
needed Cleaning the pool deck and vacuuming the pool Ensuring restrooms and guard office are clean Testing pool chemicals Providing