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$80k - $158k
Job Title: Lead Performance Engineer City: O Fallon State/Province: Missouri Posting Start Date: 9/18/26 Wipro Limited (NYSE: WIT, BSE: 507685, NSE: WIPRO) is a leading technology services and consulting company focused on building innovative...SuggestedMinimum wageLocal areaWipro
O Fallon, MO5 days ago$195k
Mastercard seeks a Senior Site Reliability Engineer in Financial Services within the IT & Data Management team. You’ll design, build, and optimize resilient, secure, and scalable platforms that power global payments. Partner with software and data teams to improve reliability...SuggestedMastercard
O Fallon, MOmore than 2 months ago- Job Title: Senior Software Engineer Job Location: O Fallon, MO We're looking for engineers with experience in: Frontend: Angular and/or React Backend: Java and/or Golang Cloud & Platform: AWS, Kubernetes, and cloud-native technologies Project...Suggested
DKMRBH Inc
O Fallon, MO2 days ago - We are seeking an experienced Angular Frontend Engineer with strong expertise in Angular 15+, TypeScript, JavaScript, HTML, CSS, NgRx state management, and Jest unit testing. The candidate will develop scalable, responsive web applications and integrate frontend solutions...SuggestedFull time
PB consulting
O Fallon, MO2 days ago - Roles & Responsibilities Design, develop, and maintain scalable web applications using Angular 15+ and React where applicable. Build reusable, responsive, and user-friendly UI components. Integrate frontend applications with RESTful APIs and backend services...SuggestedFull time
Techvilla Solutions
O Fallon, MO27 days ago - Site Reliability Engineer The BizOps team is looking for a Site Reliability Engineer who can help us solve problems, build our CI/CD pipeline and lead Mastercard in DevOps automation and best practices. Are you a born problem solver who loves to figure out how something...SuggestedShift work
Samprasoft
O Fallon, MO1 day ago $75.2k - $158.1k
Job Title: SAP Security Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: ...SuggestedFull timeContract workWork experience placementInterim roleLocal areaFlexible hoursCACI
O Fallon, MO15 days ago- The Principal Software Engineer is the senior-most technical authority for True Manufacturing's connected-equipment software platform, owning it end to end: architecture, infrastructure, data, security, and release. This is a deeply hands-on role — shipping production ...SuggestedContract workWork at officeRemote workMonday to Friday
Priority Dispatch
O Fallon, MO4 days ago - Senior Software Engineer All IT Solutions United States · O Fallon, MO Workplace Type — Hybrid Employment Type — Contract We are currently seeking a qualified Senior Software Engineer to support this engagement. Please review the complete requirements, work...SuggestedContract workTemporary workLocal area
All IT Solutions
O Fallon, MO3 days ago - Tech Mirrors in O’Fallon, MO is seeking a C/C++ Lead/Developer to design, develop, and deploy AI-powered products and agentic workflows. You will guide architecture, lead transition from prototype to production, and drive reliability, performance, and cost optimization....Suggested
$200k
Mastercard seeks a Manager, Site Reliability Engineering to lead a team ensuring secure, scalable, and highly available platforms. You will design and implement SRE best practices, build automation for deployment and operations, and drive observability across complex cloud...SuggestedMastercard
O Fallon, MOa month ago- Job Title: Senior Software Engineer- Sr Java Full Stack Developer Work Location: O'Fallon, MO Work Mode: Hybrid Work Auth: All Visas accepted (No H1 and No Fake Profiles) Experience: 8–12+ Years Education: Bachelor's Degree or equivalent professional experience...SuggestedWork visa
Xcelo Group
O Fallon, MO3 days ago $115k - $184k
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...SuggestedFull timePart timeImmediate startWorldwideFlexible hours$115k - $184k
...apply them where they create measurable value. All About You -Strong proficiency in Golang, Java, or comparable object-oriented programming languages. -Ability to design and implement complex features within large-scale applications and distributed systems. -...SuggestedFull timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO21 days ago$92k - $147k
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...SuggestedFull timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO17 days ago$92k - $147k
...realize their greatest potential. Title and Summary Software Engineer IIAbout the Role The Mastercard Operational Intelligence Program is engaged in developing innovative solutions through technology that keeps Mastercard positioned as a leader in delivering value-added...Full timePart timeImmediate startWorldwideFlexible hours$115k - $184k
...their greatest potential. Title and Summary Senior Software engineer About the Role The Mastercard Operational Intelligence Program is engaged in developing innovative solutions through technology that keeps Mastercard positioned as a leader in delivering value-...Full timePart timeImmediate startWorldwideFlexible hoursMastercard
O Fallon, MO7 days ago$192.5k
Mastercard is seeking a Lead Site Reliability Engineer to drive the reliability, scalability, and performance of mission-critical financial services platforms. In this role, you will design and implement resilient cloud-native architectures, build and refine CI/CD pipelines...Mastercard
O Fallon, MO2 days ago$92k - $147k
...web applications. •Utilize Java, Spring Boot, frontend frameworks, and Python where appropriate. •Apply data structures and programming techniques to solve technical challenges. •Contribute to AI-enabled capabilities and automation initiatives that improve customer...Full timePart timeImmediate startWorldwideFlexible hoursMastercard
O Fallon, MO5 days ago$115k - $184k
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, MO28 days ago$92k - $147k
...or a related field. • 3+ years of software engineering experience developing enterprise applications and services. • Strong programming skills in Java and object-oriented design principles. • Strong experience and sound knowledge of Java, Spring, JUnit, Eclipse IDE...Full timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO22 days ago$115k - $184k
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, MO28 days ago$115k - $184k
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, MO21 days ago- Job Title Visa status: U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. Tax Terms: W2, 1099 Corp-Corp or 3rd Parties: Yes Description Deep understanding of Web Engineering, JEE architecture stacks and performance patterns, performance...
Keylent Inc
O Fallon, MO5 days ago - Must Have Technical / Functional Skills 1.Angular 15+ (HTML, TypeScript/JavaScript, CSS) 2.Jest Framework (unit tests) 3.NgRx Store Concepts (state management) 4.API integration (angular 13 + ngRx Store) 5.Nice to have: React. Roles & Responsibilities...Full time
- Position: C,C++ Lead / Developer Location: onsite -O’Fallon, MO Duration: 8+ months Description Design, develop, and deploy AI-powered products, intelligent agents, and agentic workflows utilizing Large Language Models (LLMs), retrieval systems, orchestration frameworks...
$90.3k - $189.6k
...appropriate PI metrics around Outcomes, Flow and Competency Help identify and remove ART level dependencies and risks Build and maintain the program board to help focus everyone’s attention on the right deliverables. Remove and/or Escalate impediments to flow, and foster culture...Full timeContract workWork experience placementLocal areaFlexible hours- ...Required skills Strong hands-on development experience in Go or C is mandatory. Candidates without demonstrated Go or C programming experience should not be submitted. Linux systems programming, socket programming, concurrency, multithreading, and network...Contract work
TiltEdge Solutions LLC
O Fallon, MO2 days ago $165,000 per week
Mastercard is seeking a BizOps Engineer II to join our Information Technology & Data Management team in Financial Services. In this role, you will optimize and support mission-critical platforms that power secure, high-volume transactions worldwide. You’ll design and implement...WorldwideMastercard
O Fallon, MOmore than 2 months ago- Top Priority Requirements Strong expertise in Java, APIs, Angular, and React Experience building Agentic Frameworks utilizing MCP layers and LLMs Strong logical design, analytical, and solution architecture skills based on product and platform requirements ...Temporary work
Delan Associates, Inc
O Fallon, MOmore than 2 months ago
