Java jobs in o'fallon USA
58 java jobs found in o'fallon: showing 1 - 50
Senior Software Engineer
Company: DKMRBH Inc |
in: Frontend: Angular and/or React Backend: Java and/or Golang Cloud & Platform: AWS, Kubernetes, and cloud-native technologiesLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 23 Oct 2026
Fullstack Software Engineer
Company: Smart IMS Inc |
. Build and maintain backend services and APIs using Java and/or Golang. Develop scalable cloud-native applications... experience in frontend development using Angular and/or React. Hands-on backend development experience using Java and/or GolangLocation: O'Fallon, MO, USA
| Salary: US$60 - 80 per hour | Date posted: 23 Oct 2026
Senior, Software Engineer
Company: Mastercard |
, and maintains complex backend software applications and services, with a strong focus on Java-based development. This role applies..., and maintainable Java-based applications, APIs, services, and backend components. Translate business and technical requirementsLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 21 Oct 2026
Manager, Software Engineering
Company: Mastercard |
, production support, and continuous improvement. Provide technical leadership for Java 21 applications built with Spring.... Strong experience with Java, Spring-based services, RESTful APIs, automated testing, and service-oriented architectureLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 20 Oct 2026
Software Engineer Ii
Company: Mastercard |
& Design Design, develop, test, and maintain high-quality Java-based software components that meet engineering and business... commitment to quality and customer outcomes. All About You Proficient experience developing Java microservice and RESTfulLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 20 Oct 2026
Platform Engineering Intern, Summer 2027 – St. Louis, Mo, Us
Company: Mastercard |
of Java application servers and enterprise application environments. - Experience working with Linux operating systemsLocation: O'Fallon, MO, USA
| Salary: US$25 - 30 per hour | Date posted: 17 Oct 2026
Senior Software Engineer
Company: ICONMA |
stakeholders. Requirements: Frontend: Angular and/or React Backend: Java and/or Golang Cloud & Platform: AWS, KubernetesLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Oct 2026
Lead Site Reliability Engineer
Company: Mastercard |
, and performance of our Java, Spring Framework applications, supporting essential services that power Mastercard's global operations... to development teams. Role qualifications: Ideal candidates have:- BS in Computer Science or related field.- Proficiency in JavaLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Oct 2026
Software Engineer Ii
Company: Mastercard |
development and design patterns. Proficiency in one or more modern programming languages such as Java (preferred), Python, CLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 16 Oct 2026
Lead Software Development Engineer
Company: Mastercard |
languages such as Java, Scala, Node.js, TypeScript, Angular, or similar technologies. Demonstrated experience designingLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 15 Oct 2026
Senior Software Engineer - Java Full Stack & Ai
Company: Mastercard |
potential. Title and Summary Senior Software Engineer - Java Full Stack & AI Overview The Decision Services Technology... applications. Utilize Java, Spring Boot, React or Angular, and Python across the technology stack. Lead implementation effortsLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 14 Oct 2026
Sr. Software Engineer
Company: Diverse Lynx |
Software Developer with a strong background in Java, Spring Boot, Microservices, and Kafka. The ideal candidate... must possess strong Java 8 skills, as this is a deal breaker for the position. Responsibilities: Design, develop, and maintainLocation: O'Fallon, MO, USA
| Salary: US$50 per hour | Date posted: 14 Oct 2026
Senior Software Engineer - Java Full Stack & Ai
Company: Mastercard |
potential. Title and Summary Senior Software Engineer - Java Full Stack & AI Overview The Decision Services Technology... applications. Utilize Java, Spring Boot, React or Angular, and Python across the technology stack. Lead implementation effortsLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 14 Oct 2026
Software Engineer Ii
Company: Mastercard |
Decision Management Platform, which supports solutions designed to combat fraud and validate cardholder identity. This Java.... What Youll Do Software Development Design, build, test, deploy, and maintain Java-based applications and services. TranslateLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 13 Oct 2026
Senior Software Engineer
Company: Mastercard |
AI Development and Spec-Driven Development experience. Experience building enterprise solutions using Java and Spring BootLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 13 Oct 2026
Senior Software Engineer
Company: Mastercard |
development team to work on Enterprise Applications to deliver technical solutions using JAVA technology stacks and Angular/ React... with J2EE, Java 8 or higher, JSP, Servlets, Spring 5, Hibernate, and relational non-relational database technologies includingLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 13 Oct 2026
Security Monitoring And Response Analyst Ii
Company: Mastercard |
in at least one of PowerShell, Python, Shell/BASH scripting, Java, C/C++, C#, Perl, or other related languages is desirable. Corporate SecurityLocation: O'Fallon, MO, USA
| Salary: US$76000 - 127000 per year | Date posted: 13 Oct 2026
Software Engineer Ii
Company: Mastercard |
development team to work on Enterprise Applications utilizing Java technology stacks and Angular/React front-end technologies. The.... Proficient working with J2EE, Java 8 or higher, JSP, Servlets, Spring 5, Hibernate, and relational and non-relational databaseLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 12 Oct 2026
Site Reliability Engineer I
Company: ICONMA |
decisions with a sense of urgency is needed. Experience in one or more of the following is preferred: C, C++, Java, Python, GoLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 10 Oct 2026
Technical Lead
Company: Wipro Digital |
patterns, clean code practices, and writing maintainable, scalable software. Hands-on experience in Java, Spring bootLocation: O'Fallon, MO, USA
| Salary: US$80000 - 158000 per year | Date posted: 08 Oct 2026
Manager Software Engineering
Company: Mastercard |
enterprise integration solutions across cloud-based platforms while remaining hands-on in Core Java development, software... initiatives, including Java application development, automation strategy, test automation frameworks, and scalable solutionLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Oct 2026
Software Engineer I
Company: Mastercard |
, and distributed applications. Working knowledge of Java, Golang, Kotlin, C#, or similar programming languages. FamiliarityLocation: O'Fallon, MO, USA
| Salary: US$72000 - 115000 per year | Date posted: 08 Oct 2026
Senior Software Engineer
Company: Mastercard |
continuous improvement, refactoring, and adherence to SOLID principles. All About You Strong hands-on experience with JavaLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 07 Oct 2026
Manager, Software Engineering
Company: Mastercard |
, low-latency, mission-critical distributed systems in a Linux or Unix-based environment. Working knowledge of JavaLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 07 Oct 2026
Software Engineer I
Company: Mastercard |
, and distributed applications. Working experience in Java, Golang, Kotlin, or similar programming languages. FamiliarityLocation: O'Fallon, MO, USA
| Salary: US$72000 - 115000 per year | Date posted: 06 Oct 2026
Kafka Developer
Company: Wipro Digital |
readiness Collaborate closely with application and platform engineering teams Contribute to Java-based tooling and platform... in automation (Ansible, scripting, CI/CD) Java development background (ability to debug, enhance, or build platform toolsLocation: O'Fallon, MO, USA
| Salary: US$60000 - 135000 per year | Date posted: 06 Oct 2026
Principal Engineer (architecture)
Company: Mastercard |
Java, Spring Boot, Spring (MVC, IOC, AOP, Security), SQL, RDBMS (Oracle and PostGRES), NoSQL (Cassandra), Web-servicesLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 05 Oct 2026
Senior Data Engineer
Company: Mastercard |
: Design, develop, test, and deploy secure, scalable, high-performance, and resilient data pipelines using Apache Spark, Java..., Scala and/or Java, Hadoop ecosystem technologies, and cloud object storage platforms. Experience building orchestrationLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 02 Oct 2026
Software Engineer Ii
Company: Mastercard |
. All About You 3+ years of hands-on Java development experience building, testing, deploying, and supporting enterprise applications... Software engineer first, with a passion for quality and automation. Brings a strong foundation in Java development and modernLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 02 Oct 2026
Senior Data Engineer
Company: Mastercard |
: Design, develop, test, and deploy secure, scalable, high-performance, and resilient data pipelines using Apache Spark, Java..., Scala and/or Java, Hadoop ecosystem technologies, and cloud object storage platforms. Experience building orchestrationLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 01 Oct 2026
Senior Integration Engineer
Company: Mastercard |
business-critical, API-driven platforms built on Java and Spring technologies. These platforms power highly scalable... automation frameworks using: o Java + Selenium (UI automation) o REST Assured (API automation) o Cucumber (BDDLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 01 Oct 2026
Senior Java Fullstack Engineer
Company: ICONMA |
Our client, a Credit Card Company, is looking for a Senior Java Fullstack Engineer for their O Fallon, MO/Hybrid... enterprise applications using a Java technology stack with Angular or React as front-end technologies. Participate in gatheringLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 30 Sep 2026
Kafka Developer
Company: Wipro Digital |
readiness Collaborate closely with application and platform engineering teams Contribute to Java-based tooling and platform... in automation (Ansible, scripting, CI/CD) Java development background (ability to debug, enhance, or build platform toolsLocation: O'Fallon, MO, USA
| Salary: US$60000 - 135000 per year | Date posted: 29 Sep 2026
Lead Software Engineer
Company: Mastercard |
, reliability, and developer experience Influences technical direction and mentors' engineers across teams Technologies Java... building microservices in JAVA with the Spring Boot framework Working knowledge of application security principles: encryptionLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 29 Sep 2026
Software Engineer Ii – Notification Manager
Company: Mastercard |
expertise. What You'll Do Software Development Design, develop, test, and maintain Java/Spring Boot microservices... experience. Experience developing applications using Java and Spring Boot. Understanding of REST APIs and microserviceLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 29 Sep 2026
Senior Software Engineer
Company: Mastercard |
. All About You Required Experience Experience developing secure full-stack applications using backend and front-end technologies such as JavaLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 29 Sep 2026
Lead Software Engineer
Company: Mastercard |
. Technologies Languages and development: Java, J2EE, JavaScript, HTML, CSS Architecture and integration: Microservices, RESTful...-scale enterprise systems. Strong experience building Java microservices and developing user-interface components usingLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 29 Sep 2026
Senior Software Engineer
Company: Mastercard |
programming skills( OOP, SOLID, 12-factor) - java preferred Experience in Continuous Integration (CI) and Delivery (CD) concepts... to write code (in languages such as Java, Python, Bash) to build automation tasks that are repeatable and efficientLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 29 Sep 2026
Principal Software Engineer
Company: Mastercard |
designing highly available, fault-tolerant, and globally distributed systems. Strong hands-on experience with Java, Spring BootLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 25 Sep 2026
Lead Software Engineer
Company: Mastercard |
engineering experience with expertise in Java, Spring Boot, Microservices, and distributed systems. Strong experience with GolangLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 21 Sep 2026
Software Engineer Ii
Company: Mastercard |
improvement initiatives. All About You Proficient experience developing backend software applications with JAVA/ J2EELocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 18 Sep 2026
Software Engineer Ii - Decision Management Program
Company: Mastercard |
expertise. What You'll Do Software Development Design, develop, test, and maintain Java/Spring Boot microservices. Design... experience. Experience developing applications using Java and Spring Boot. Understanding of REST APIs and microserviceLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 18 Sep 2026
Senior Software Engineer
Company: Mastercard |
gateway products. Build scalable, secure, and maintainable solutions using Java 17+, Spring Framework, and Spring Boot... of experience developing and supporting large-scale, distributed software applications. Advanced Java experience, preferably JavaLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Sep 2026
Software Engineer Ii
Company: Mastercard |
+ 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, Rest AssuredLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 17 Sep 2026
Senior Data Engineer
Company: ICONMA |
certifications. Top 3 required skills: For IT roles only, is Java required: Python Date engineering Principals Fabric/Power BILocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Sep 2026
Senior Software Engineer
Company: Mastercard |
secure, reliable software at scale. Role -Design, develop, and maintain Java-based backend services using Spring Boot... engineering background with Java, Spring Boot, Spring Integration, and REST or SOAP services. -Proven ability to design, developLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 15 Sep 2026
Senior Software Engineer
Company: Mastercard |
and scalability while supporting service-level objectives. All About You Strong proficiency in Java, Spring Boot, JakartaLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 11 Sep 2026
Senior Software Engineer
Company: Mastercard |
and efficient software delivery. -Develop backend services and supporting tools using technologies such as Golang, Java, and gRPC... measurable value. All About You -Strong proficiency in Golang, Java, or comparable object-oriented programming languagesLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 10 Sep 2026
Senior Data Engineer
Company: Mastercard |
pipelines using Spark, Scala/Python/Java, Databricks, Hadoop, and cloud-native technologies to support enterprise data... designing and developing scalable data pipelines using Spark, Scala, Python, Java, Databricks, and AWS Services. Possess strongLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 04 Sep 2026
Senior Full Stack Software Engineer
Company: Mastercard |
capabilities. We are seeking a Senior Full Stack Software Engineer with strong React, Angular, and Java development expertise..., and Java. -Translate business requirements into effective technical solutions. -Contribute to technical planning, estimation