Java jobs in o'fallon USA
44 java jobs found in o'fallon: showing 1 - 44
Senior Java Full Stack Developer
Company: DKMRBH Inc |
Job Title: Senior Java Full Stack Developer Job Location: O Fallon, MO Notes: Industry: Payments LOCAL CANDIDATES... of developing internal and external partnerships. Proficiency with J2EE, Java 8 or higher, JSP, Servlets, Spring 5, HibernateLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 03 Oct 2026
Senior Site Reliability Engineer
Company: Mastercard |
is needed. Experience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby. Interest in designingLocation: O'Fallon, MO, USA
| Salary: US$163000 per year | Date posted: 03 Oct 2026
Site Reliability Engineer Ii
Company: Mastercard |
in one or more programming languages: C, C++, Java, Python, Go, Perl, or Ruby. Experience working with large-scale distributed systemsLocation: O'Fallon, MO, USA
| Salary: US$76000 - 127000 per year | Date posted: 03 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: US$122000 - 207000 per year | Date posted: 03 Oct 2026
Senior Site Reliability Engineer
Company: Mastercard |
with a sense of urgency is needed. Experience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or RubyLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 03 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: 02 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
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
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
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
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
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
Senior Software Engineer
Company: Mastercard |
experience developing microservices with JAVA and Spring Boot, required Proven skills working with relational SQL databaseLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 22 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: 22 Sep 2026
Senior Software Engineer
Company: Mastercard |
experience developing microservices with JAVA and Spring Boot, required Proven skills working with relational SQL databaseLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 19 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
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: 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
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 |
applications and services Build and maintain backend solutions using Java and Spring Boot Develop and enhance modern user... distributed systems Advanced proficiency in modern programming languages (e.g., Java, C#) and frontend development using ReactLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 12 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, estimationLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 03 Sep 2026
Senior Software Engineer - Java
Company: Mastercard |
potential. Title and Summary Senior Software Engineer - Java Overview: Mastercards Enterprise Credit Risk (ECR) team... is seeking a talented Senior Software Engineer Java Full Stack to design, build, and modernize applications that power creditLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 01 Sep 2026
Lead Data Engineer
Company: Mastercard |
, trade-offs, risks, dependencies, and recommendations to both technical and business audiences. Experience with Java-basedLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 31 Aug 2026
Software Engineer Ii
Company: Mastercard |
, cloud, and on-prem). As a Software Engineer II, you will contribute to building scalable backend services using Java... multiple phases of the software development lifecycle. Role In this role, you will: Design, develop, and own Java-basedLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 29 Aug 2026
Software Engineer Ii
Company: Mastercard |
, develop, test, and maintain high-quality Java-based software components that meet engineering and business requirements... driven architecture with Java, Spring Boot and other relevant event driven/ remote procedure call frameworks such as: gRPCLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 26 Aug 2026
Software Engineer Ii
Company: Mastercard |
as the core for multiple business solutions to combat fraud and validate cardholder identity. Our patented Java-based... scope and long-term business implications. Design, develop, test, and maintain high-quality software solutions using JavaLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 26 Aug 2026
Vice President Platform Engineering
Company: Mastercard |
, and developer productivity solutions. Proficiency with modern programming languages such as Java, C#, Go, Python, or equivalentLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 21 Aug 2026
Senior Software Engineer
Company: Mastercard |
outcomes and meaningful socio-economic impact. About the Role As a Java Site Reliability Engineer (SRE) within the... systems. Role Responsibilities Design, develop, deploy, and support cloud-native Java applications and microservicesLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 19 Aug 2026
Senior Software Engineer
Company: Mastercard |
programming and automation skills using Java, Groovy, or similar languages Experience designing, building, testing, deployingLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 14 Aug 2026
Senior Software Engineer
Company: Mastercard |
improvement All About You Demonstrated experience building applications and REST APIs with Java in the Spring Boot frameworkLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 14 Aug 2026
Site Reliability Engineer Ii
Company: Mastercard |
in one or more programming languages: C, C++, Java, Python, Go, Perl, or Ruby. Experience working with large-scale distributed systemsLocation: O'Fallon, MO, USA
| Salary: US$76000 - 127000 per year | Date posted: 04 Aug 2026
Senior Software Engineer
Company: Mastercard |
-quality software solutions. The ideal candidate brings strong software engineering fundamentals, hands-on Java development..., testability, reliability, performance, security, and maintainability. Develop robust test automation using Java, Spring, JUnitLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
Senior Software Engineer
Company: Mastercard |
applications and REST APIs using Java, Spring Boot, and Spring Data JPA Strong foundation in computer science fundamentalsLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
Manager, Software Engineering
Company: Mastercard |
or global real-time event streaming systems etc.) - Experience with various coding languages Java, Go, C++,ESQLLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Manager, Software Engineering
Company: Mastercard |
Java, C/C++, or similar object-oriented languages. Demonstrated experience designing scalable, secure, highly