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- ...software for combating scammers? The Transaction Security team develops new products for Mastercard's fraud prevention platform. We... ...source products into an overall system Ability to coordinate, interact with, and lead cross departmental teams Experience in...Suggested
Samprasoft
O Fallon, MO3 days ago - ...change the way the world, communities, businesses, and humans interact digitally. We are harnessing the power of change, brought in by... ...Scale @ Speed' as our guiding principle. Title- Full Stack Developer Location- St. Louis, MO Mode of Interview- (L1 -Video...Suggested
Yantran LLC
O Fallon, MO1 day ago - ...to system interfaces and complete software solutions. Design and develop test automation scenarios to validate system to system interfaces and complete software solutions (for API and UI tests). Interact with business and development stakeholders to define test plans and...Suggested
Samprasoft
O Fallon, MO3 days ago $75k
...O’Fallon, IL Job Summary Mid Software Developer – Backend Software Developer to modify existing GOTS code and integrate open‑source solutions for display and analysis within Aeronautical Production Systems. Responsibilities Coding, developing, integrating, and debugging...SuggestedWork at officeWork from homeHome officeChenega MIOS SBU
O Fallon, MO2 days ago- ...Backend Python Developer Day 1 relocation-All 5 days onsite at Bridgeton, MO Responsibilities Lead the Design and Develop... ...Experience with cloud services and infrastructure management. Good Interaction and knowledge of UI Code and Frameworks (e.g., Vue, REACT,...SuggestedRelocation
United IT
Bridgeton, MO1 day ago - ...Role: - Senior Java Developer Location: - O'Fallon, MO Duration: - Long term Required Skills - Agile, API, Cloud, Cucumber, J2EE, Java, Junit, Microservices, Selenium, Spring Boot, SQL What are your top three required technical skills?...SuggestedWork experience placement
Maintec Technologies
O Fallon, MO1 day ago - ...development. Comfortable enough in handling algorithms, data structures, data collections and system design problems Expected to develop new APIs and host new end points. Experienced in Distributed System development using Java/J2EE/Web Technologies. Proven...Suggested
Argyle Infotech
O Fallon, MO3 days ago - ...Sr. Java Developer Key Skills and Experience: ~ Strong hands on experience in Java(J2ee) ~ Strong in webservices(microservices), Rest API's, Oracle DB knowledge, Cloud native(preferably AWS or Azure) ~ Ability to drive end to end development, performance code...Suggested
Damco
O Fallon, MO1 day ago - ...Java Developer Location: O’Fallon, MO (Onsite from day 1) Interview Process: 3 rounds will be Zoom Duration: 12+ Months Job Description: Strong Java developer with very good understanding of micro services. Grasp of software engineering skills in modular...SuggestedWork experience placement
Argyle Infotech
O Fallon, MO1 day ago - ...Job ID : 92557-1 Job Title : Java Developer Location : Ofallon, MO Duration : 6 months + possible extension Rate Range: $35 - $45/hour on W2/ C2C (All inclusive) Introduction We are seeking a highly skilled Senior Software Engineer with expertise in...SuggestedWork experience placementInternshipImmediate start
Artech
O Fallon, MO4 days ago - ...candidates with real-time, production-grade experience, not just academic or training-based exposure. Look for backend developers with strong AWS Background. An ideal candidate for this role would have extensive experience in Java development and be...Suggested
Futran Tech Solutions Pvt. Ltd.
O Fallon, MO1 day ago - ...Java Developer Location: O’Fallon, MO – Day 1 Onsite – No Remote Duration: Long Term Passport copy mandatory to submit the profile Job Description: • Overall 8+ years of experience must • Experience in object-oriented programming and concepts • Experienced...SuggestedRemote work
Argyle Infotech
O Fallon, MO2 days ago $65 - $68 per hour
...focused technologies to maintain high standards of reliability and security. Collaboration is central to the role, with frequent interaction across multiple teams and disciplines to align on integration, architecture, and technical decisions. The work centers on mission...SuggestedContract workTemporary workWork at officeShift workActalent
Bridgeton, MO2 hours agonew- ...each initiative • Create technical designs and assign work to developers • Develop complex stories in C and write unit tests in C++... ...with other Principals and Leads to define interfaces and interactions between systems • Advise on implementation strategy for successful...SuggestedFull timePart timeWorldwideFlexible hours
- ...rewrite of current MDES Platform moving towards Cloud Transformation. What are your top 3 required technical skills? Manage and develop system integration and functional testing strategies and subsequent supporting tests plans and cases. Develop, manage and...Suggested
My3Tech Inc
O Fallon, MO1 day ago - ...Operations & Technology Fraud Products Team Lead Be part of the Operations & Technology Fraud Products team developing new capabilities for MasterCard's Decision Management Platform, which serves as the core for multiple business solutions to combat fraud and validate...Local areaRemote workRelocation
Samprasoft
O Fallon, MO3 days ago $140k - $231k
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO9 hours ago- Amyx is seeking a Software Engineering Lead to join our Dept. of Defense client at Scott Air Force Base in O'Fallon, IL. Responsibilities This position requires the ability to support software development and Agile delivery activities. Supports Agile ceremonies, backlog...Temporary workFor contractorsFlexible hours
Amyx
O Fallon, MO2 days ago $126.65k - $171.35k
...generation of flight simulators to train our nation's military pilots. Develop subsystems for Boeing Flight Trainers such as the Instructor/... ...as the prime technical contact on contracts and projects Interacts with senior external personnel on significant technical matters...Permanent employmentWork experience placementInterim roleRelocationVisa sponsorshipWork visaFlexible hoursShift workDay shiftBoeing
Hazelwood, MO5 days ago$195k - $323k
Principal Software Engineer, Senior Architect Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible...Dynamic Yield
O Fallon, MO2 days ago- ...& Requirements We are seeking a Software Engineer to design, develop, and maintain software that powers automated saw systems used... ...machinery, ensuring accurate cutting operations, seamless operator interaction, and high system uptime. This is an opportunity to work on...Temporary workWork at officeWorldwide
MiTek USA
Earth City, MO2 days ago - ...looking to find a candidate here with LEAD experience. Needs to provide mentorship. Any experience with mentoring or guiding junior developers would be great Strong Java and Spring Boot experience Cloud Deployments- Azure is primary. AWS will be on the roadmap at...Contract workRemote workRelocationFlexible hours2 days per week
Samprasoft
O Fallon, MO3 days ago $87.1k - $157.45k
...Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you’ll design, develop, and deliver modern software solutions that enable critical national security missions while working alongside some of the industry...Contract workLocal areaImmediate startLeidos
Ballwin, MO1 day ago- ...we are responsible for ensuring that our platform is stable and healthy. We break down barriers to run our products by fostering developer run ownership and empowering developers to build resilient products. We support our developers during the application build phase...
Dynamic Yield
O Fallon, MO1 day ago $140k - $231k
...-level design artifacts, including APIs, data models, system interactions, and component boundaries • Establish and enforce architecture... ...design, and maintainability •Build and enhance internal developer platforms using Backstage or similar frameworks, leveraging plugin...Full timePart timeWorldwideFlexible hours- ...Kingdom. Purpose of Position We are seeking a Software Engineer to develop and maintain tools and plugins that support the creation and... ...tools using Python, Perl, XML, and JSON. Develop tools that interact with Perforce to manage, organize, and release simulation environment...Permanent employmentWork at office
$140k - $231k
...transactional use cases. The primary purpose of this role is to develop and deliver best-of-breed authentication products for e-... ...Drive architectural design, including dependent services, service interactions, and policies • Take ownership of improving the customer experience...Full timePart timeWorldwideFlexible hours- ...software with control loading and motion software and hardware. Develop complete Auto flight system test program and prepare Auto... ...Exhibit and practice professional and courteous behavior while interacting with both internal and external customers. Interact within a...Permanent employmentWork at officeShift work
- ...• Define requirements for new applications and customization adhering to MasterCard standards, processes and best practices. • Develop, customize, and test applications to integrate to MasterCard’s specifications. • Provide leadership, mentoring, and technical training...Work experience placement
Samprasoft
O Fallon, MO3 days ago $115k - $184k
...Development Engineer Overview The Senior Software Development Engineer is a senior individual contributor responsible for designing, developing, and supporting highly scalable distributed systems. This role combines deep technical expertise with mentorship responsibilities...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 hours agonew
