Test Software Development Engineer jobs in o'fallon USA
30 test software development engineer jobs found in o'fallon: showing 1 - 30
Java Software Engineer Ii
Company: Smart IMS Inc |
Job Title: Java Software Engineer II Duration (Contract): 12 Months Client Location: O'Fallon, Missouri Location... Preference: Onsite Job Description: As a Java Software Engineer II, you will develop and support high-performance, eventLocation: O'Fallon, MO, USA
| Salary: US$40 - 80 per hour | Date posted: 02 Aug 2026
Java Engineer
Company: Staffingine |
Job Title: Java Engineer Job Location: O'Fallon, Missouri Job Type: Contract Job Description: * Java Expertise...: Has at least 8+ years of hands-on Java development experience, specifically in J2EE (Java 2 Platform, Enterprise EditionLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 02 Aug 2026
Java
Company: Akaasa Technologies |
optimization Role: The Software Development Engineer is a hands-on developer specializing in Java development with a particular...Java, Kafka based event driven micro-services 2. Agentic software development 3. Production support and platformLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 02 Aug 2026
Java Engineer
Company: Apptad |
-to-end development, conducting code reviews, developing test strategies, coordinating with cross-functional teams...Role: Java Engineer Work Location: O'Fallon, Missouri Onsite (5days) Duration: long term contract KeyLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 02 Aug 2026
Senior Site Reliability Engineer, Performance Engineering
Company: Mastercard |
potential. Title and Summary Senior Site Reliability Engineer, Performance Engineering Senior Site Reliability Engineer... for scale. The SRE & Performance Engineering team is looking for a strong, innovative engineer to help optimize and scaleLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 01 Aug 2026
Senior Software Engineer
Company: Mastercard |
software delivery tasks (code development, test, deployment, release, configuration and documentation) at an application... potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in theLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 01 Aug 2026
Senior Site Reliability Engineer, Performance Engineering
Company: Mastercard |
potential. Title and Summary Senior Site Reliability Engineer, Performance Engineering Senior Site Reliability Engineer... for scale. The SRE & Performance Engineering team is looking for a strong, innovative engineer to help optimize and scaleLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 29 Jul 2026
Software Engineer Java
Company: Korn Ferry |
transactions regardless of channel. Responsibilities: The Software Development Engineer is a hands-on developer specializing...) Practitioner of Test Driven Development Exposure to Continuous Delivery and Integration Agile Scrum experience EducationLocation: O'Fallon, MO, USA
| Salary: US$60 - 75 per hour | Date posted: 29 Jul 2026
Software Engineer Ii
Company: ICONMA |
Our Client, a Credit Card company, is looking for a Software Engineer II for their O'Fallon, MO/Hybrid location.... Exposure to building cloud ready applications (microservices) Practitioner of Test Driven Development Exposure to ContinuousLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 23 Jul 2026
Lead Software Engineer
Company: Korn Ferry |
We have partnered with our client in their search for a Lead Software Engineer in O'Fallon, MO. Responsibilities... Bachelor's degree in related field 7+ years of experience Title Lead Software Engineer Location O'Fallon, MO ClientLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 21 Jul 2026
Software Engineer I
Company: Mastercard |
potential. Title and Summary Software Engineer I Overview The Software Development Engineer is an early-career software... engineer specializing in Java development with a focus on building microservices that support Mastercard's high-throughput, lowLocation: O'Fallon, MO, USA
| Salary: US$72000 - 115000 per year | Date posted: 21 Jul 2026
Lead Software Engineer (c/c++)
Company: Mastercard |
potential. Title and Summary Lead Software Engineer (C/C++) Overview This is an exciting opportunity.... We are looking for engineers that are passionate about design and development with constant focus on quality. Responsibilities PartnerLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 19 Jul 2026
Lead Software Engineer
Company: US Tech Solutions |
Duration: 24+ months Description: This job is a developing subject matter expert in the Software Engineering area... to solution development and improvements for existing products, services, and/or processes. Develops and maintains high-qualityLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 18 Jul 2026
Software Engineer Ii
Company: Mastercard |
potential. Title and Summary Software Engineer II Overview The Software Engineer II is an experienced software engineer... and scalability concepts. Understanding of secure software development practices. Experience participating in code reviews. StrongLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 18 Jul 2026
Software Engineer I
Company: Mastercard |
potential. Title and Summary Software Engineer I Overview The Software Engineer I is an early-career software engineer... and services. Follow secure coding standards and software engineering best practices throughout the development lifecycleLocation: O'Fallon, MO, USA
| Salary: US$72000 - 115000 per year | Date posted: 18 Jul 2026
Senior Software Engineer
Company: Mastercard |
around the world. Role As a Senior Software Engineer, you will: Design, develop, and maintain scalable test frameworks..., sprint planning, and design discussions Responsibilities Software Engineering & Development Design, build, testLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
Senior Software Engineer
Company: Mastercard |
is for a Senior Software Engineer who will contribute to the design, development, validation, automation, and operability of high... potential. Title and Summary Senior Software Engineer Overview Mastercards Network & Digital Payments group createsLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
Lead Software Engineer - Level 6
Company: ICONMA |
Our Client, a Credit Card Company, is looking for a Lead Software Engineer - Level 6 for their O FallonMO location.... Responsibilities: This job is a developing subject matter expert in the Software Engineering area, influencing stakeholdersLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Senior Software Engineer
Company: Diverse Lynx |
Senior Software Engineer Location: O'Fallon, Missouri - onsite (LOCAL ONLY) Rate - $65/hr. on C2C Java/JEE 6-10... experience in a production environment Expert programming skills in Java/JEE Proficiency in Software Development Best PracticesLocation: O'Fallon, MO, USA
| Salary: US$65 per hour | Date posted: 11 Jul 2026
Senior Software Engineer
Company: Mastercard |
potential. Title and Summary Senior Software Engineer Overview Mastercards Network & Digital Payments group creates... software development lifecycle, proactively identifying and remediating security vulnerabilities. Design and implementLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 08 Jul 2026
Lead Software Engineer
Company: Mastercard |
potential. Title and Summary Lead Software Engineer Overview: Mastercard's Global Credit Authorization team is seeking... a Lead Software Engineer (C/C++) to build and enhance high-performance, mission-critical systems that power secure, reliableLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Senior Software Engineer (java/jee)
Company: Diverse Lynx |
Senior Software Engineer (JAVA/JEE) Location: O'Fallon, Missouri - onsite (LOCAL ONLY) Contract Rate - $65... experience in a production environment Expert programming skills in Java/JEE Proficiency in Software Development Best PracticesLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 03 Jul 2026
Senior Software Engineer
Company: Mastercard |
Software Engineer, you will: Design, develop, test, deploy, and support scalable software solutions that power Mastercard... potential. Title and Summary Senior Software Engineer Who We Are Mastercard powers economies and empowers people in 200Location: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 02 Jul 2026
Senior Software Engineer– Rpps Platform
Company: Mastercard |
utilizes Java, Spring Boot, Angular, APIs, and automation-focused development work. Role As a Senior Software Engineer... potential. Title and Summary Senior Software Engineer RPPS Platform Who is Mastercard? Mastercard powers economiesLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 02 Jul 2026
Software Engineer Ii
Company: Mastercard |
potential. Title and Summary Software Engineer II Overview: Mastercards Global Credit Authorization team is seeking... a Software Engineer II (C/C++) who is passionate about building high-performance, mission-critical systems that operate at globalLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 30 Jun 2026
Senior Software Engineer
Company: Mastercard |
software delivery tasks (code development, test, deployment, release, configuration and documentation) at an application... potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in theLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 12 Jun 2026
Senior Software Engineer
Company: Mastercard |
potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the... secure, scalable, and high-performing software for Mastercards Identity Solutions platform. As a Senior Software EngineerLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 06 Jun 2026
Software Engineer Ii
Company: Mastercard |
potential. Title and Summary Software Engineer II Overview: We work to connect and power an inclusive, digital economy... on software that operates at global scale, where speed, reliability, and resilience matter every day. As a Software Engineer IILocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 04 Jun 2026
Senior Software Engineer
Company: Mastercard |
Technology Development team is seeking a Senior Software Engineer to drive innovation and enhance customer experience through... potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in theLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 28 May 2026
Senior Software Engineer
Company: Mastercard |
potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company... transaction processing across global payment networks. Role As a Senior Software engineer, you will be responsible