Average salary: $125,000 /yearly
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- ...are seeking a Senior Software Engineer for a 6-month contract position based in O'Fallon, Missouri. This role focuses on full-stack Java development, cloud-native architecture, and the application of AI and generative AI tools in modern software engineering. Responsibilities...JavaContract work
Intone Inc
O Fallon, MO4 days ago - ...capabilities to support automation, pipelines, virtualization, and containerization # Fluency in one or more languages like Scala, Java, Python etc. # Understanding/experience in Apache Spark, Airflow, Databricks, AWS and related technologies ~ What...Java
3B Staffing LLC
O Fallon, MO4 days ago - ...Qualifications BS/BA in Computer Science, Information Systems, or related field Strong full-stack development background with: Java API Development Angular React Experience with Agentic AI frameworks, MCP architecture, and LLM integrations...Java
Delan Associates Inc
O Fallon, MO5 days ago - ...Should have experience of Java Test Development, primarily as an architect or consultant creating and driving Automation Test Strategy ¿ Experience in Test and Behavior Driven Development (TDD and BDD), Jbehave/Cucumber frameworks ¿ Strong Java development skill, Eclipse...Java
Procyon TS
O Fallon, MO4 days ago - ...Mastercard is seeking a Director of Software Engineering to lead a team of Java engineers and deliver scalable, secure software solutions. You will set engineering standards, collaborate with stakeholders, and drive strategic technical direction for the department....Java
- ...Management Platform, which serves as the core for multiple business solutions to combat fraud and validate cardholder identity. Our patented Java-based platform processes billions of transactions per month in tens of milliseconds using a multi-tiered, message-oriented approach...JavaLocal areaRemote workRelocation
Samprasoft
O Fallon, MO5 days ago - ...(Tuesday, Thursday, and Friday). Top 3 Required Skills: 1. Java Full Stack Engineering Java 8+, J2EE, Spring, Hibernate... ...Respond to operational and business concerns related to future programs, projects, or enhancements to ensure consistent delivery of quality...JavaWork experience placement3 days per week
RIT Solutions, Inc.
O Fallon, MO4 days ago - ...oriented development and design patterns. Full stack developer with ability to write secure code in backend and frontend programming languages (Java, JavaScript, Angular, SQL) and familiar with secure coding standards and vulnerability management Good knowledge of...Java
Vets Hired
O Fallon, MO5 days ago - ...Operations, Developers, Devops Engineers, Product management, and Program management to identify scope of project/s and deliver services.... ..., and Collaboration) among various delivery teams. Good Java coding experience. Use of JUnit/Jbehave/Cucumber frameworks....Java
Samprasoft
O Fallon, MO5 days ago - ...experience and knowledge. Front End/Browser level Performance Testing and Optimization exposure C++,UNIX,Shell Scripting Understanding of Java virtual machine and app servers; JVM GC process and its logs; performance metrics on *nix and Windows. Performance tuning experience...Java
Keylent Inc
O Fallon, MO4 days ago - ...Sr. Software Engineer We are seeking a skilled Software Developer with a strong background in Java, Spring Boot, Microservices, and Kafka. The ideal candidate will have a minimum of 5 years of experience in software development, with a proven track record of delivering...Java
Echo IT Solutions
O Fallon, MO4 days ago - ...automation, and behavior-driven development. Strong background in object-oriented architecture, design, and development. Direct Java experience preferred. Experience with multiple OO languages and SQL a plus. High-energy and detail-oriented, able to function under...JavaWork experience placementFlexible hours
MasterCard
O Fallon, MO5 days ago - ...Management) on the CERA (Commercial Expense Reporting and Analytics) program. This is growing part of MC with a goal of becoming 20% of MC’s... ...are (this is standard for entire team) Not usually. No Java (Spring/Spring boot) API experience PCF/AWS knowledge...JavaFor contractorsWork experience placementBank staffFlexible hours
Samprasoft
O Fallon, MO5 days ago - ...Computer Science or Engineering or equivalent work experience. Knowledge / Experience • Intermediate to Advanced skills in - Core Java, Spring Technologies • Intermediate to Advanced skills in - Oracle / writing complex SQL queries • Intermediate to Advanced...JavaWork experience placement
Samprasoft
O Fallon, MO5 days ago - ...Contractor) Location: OFallon, MO, USA Job Summary: We are seeking a skilled Software Developer with a strong background in Java, Spring Boot, Angular, and Kafka to join our dynamic team. As a contractor, you will play a crucial role in developing and...JavaHourly payContract workFor contractors
Yantran LLC
O Fallon, MO2 days ago - ...Operations, Developers, Devops Engineers, Product management, and Program management to identify scope of project/s and deliver services.... ..., and performance across multiple groups. Sound knowledge of Java, Spring, JUnit, Eclipse IDE, Rest Assured, Appium, Jbehave/...JavaWork experience placement
Samprasoft
O Fallon, MO5 days ago - ...automation, and behavior-driven development. Strong background in object-oriented architecture, design, and development. Direct Java experience preferred. Experience with multiple OO languages and SQL a plus. High-energy and detail-oriented, with the ability...JavaLong term contractWork experience placementLocal areaRelocationFlexible hours
3B Staffing LLC
O Fallon, MO4 days ago - ...Work Experience: 7+ Years Work Auth All Visas Accepted (No H1 and No Fake profiles) We are looking for an experienced Senior Java Full Stack Developer to design, develop, and enhance a next-generation Decision Management Platform that processes and scores...JavaWork experience placementLocal areaWork visa
Xcelo Group
O Fallon, MO9 days ago - ...greatest potential. Role Within Mastercard's Builders Enablement Program (ONE Division), we are building a standardized, secure, cloud... ...and services Build and maintain backend solutions using Java and Spring Boot Develop and enhance modern user interfaces using...JavaFull timePart timeWorldwideFlexible hours
Dynamic Yield
O Fallon, MO4 days ago - ...practical experience is preferred. Strong understanding of programming fundamentals, data structures, algorithms, and object-oriented... ...systems, and distributed applications. Working experience in Java, Golang, Kotlin, or similar programming languages. Familiarity...JavaFull timePart timeWork experience placementWorldwideFlexible hours
Dynamic Yield
O Fallon, MO9 hours ago $140k - $231k
...deliver better business outcomes. The Mastercard Authentication Program owns how consumer authentication works for both in-store and e-... ...problems. Technologies Languages and development: Java, J2EE, JavaScript, HTML, CSS Architecture and integration: Microservices...JavaFull timePart timeFlexible hoursDynamic Yield
O Fallon, MO4 days ago- ...Engineer (SRE) to join our growing team. You will play a critical role in ensuring the reliability, scalability, and performance of our Java, Spring Framework applications, supporting essential services that power Mastercard's global operations. As a leader thought leader...JavaFull timePart timeWorldwideFlexible hours
Mastercard
O Fallon, MO14 days ago - ...TypeContracta { text-decoration: none; } tr th, tr td { } tr th { } Java DeveloperJob OverviewWe are seeking multiple Java Developers to... ...development experienceStrong understanding of Object-Oriented Programming (OOP) principlesExperience with unit testing...Java
TalentsBridge
Maryland Heights, MO3 days ago - ...consistency, and long-term maintainability. Qualifications ~7+ years of professional software engineering experience with.NET (or Java ecosystem) and modern JavaScript frameworks (React, Angular, etc.). ~ Strong background in Ecommerce solutions and ERP/PIM...Java
Work Life Limbo
Wildwood, MO4 days ago $96k - $163k
...platforms. This position is to support the Data Delivery and Analytics program to support the growing need of the product like MyMPA, QMR.... ...in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby. • Interest in designing, analyzing...JavaFull timePart timeWorldwideFlexible hoursShift workMasterCard
O Fallon, MO4 days ago$115k - $184k
...Software applications and globally deployed payment gateway products. • Build scalable, secure, and maintainable solutions using Java 17+, Spring Framework, and Spring Boot. • Apply software design and architecture principles to deliver high-quality technical solutions...JavaFull timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO17 days ago- ...opportunity to join Mastercard's global credit card authorization program. We facilitate billions of transactions among issuers, acquirers... ...teams. Hands-on experience with software development using Java, C/C++, or similar object-oriented languages. Demonstrated experience...JavaFull timePart timeWorldwideFlexible hours
Dynamic Yield
O Fallon, MO4 days ago - ...Job Title Strong proficiency in Core Java and Object-Oriented Programming. Hands-on experience with Spring Boot and the broader Spring ecosystem (MVC, AOP, Actuator, Cloud, Config). Experience building RESTful and/or SOAP web services. Solid understanding...Java
Saxon Global
Maryland Heights, MO9 hours ago $115k - $184k
...services and supporting tools using technologies such as Golang, Java, and gRPC. -Contribute to software architecture and design... ...Strong proficiency in Golang, Java, or comparable object-oriented programming languages. -Ability to design and implement complex features...JavaFull timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO10 days ago$92k - $147k
..., tools, and development practices that improve software quality and engineering outcomes. All About You •3+ years of hands-on Java development experience building, testing, deploying, and supporting enterprise applications. •Experience developing and maintaining...JavaFull timePart timeWorldwideFlexible hours
