Average salary: $136,781 /yearly
More statsGet new jobs by email
- ...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, MO3 days ago - ...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, MO2 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, MO12 days ago $140k - $231k
...foundational computer science principles to solve complex engineering problems. Technologies Languages and development: Java, J2EE, JavaScript, HTML, CSS Architecture and integration: Microservices, RESTful APIs, web services, API design and tooling best...JavaFull timePart timeFlexible hoursDynamic Yield
O Fallon, MO2 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, MO17 days ago - ...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, MO3 days ago - ...Software Engineer This is hybrid in O'Fallon, Missouri 3 days per week (Tuesday, Thursday, and Friday). Top 3 Required Skills: 1. Java Full Stack Engineering Java 8+, J2EE, Spring, Hibernate Angular/React front-end development REST/SOAP APIs and...JavaWork experience placement3 days per week
RIT Solutions, Inc.
O Fallon, MO2 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, MO2 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, MO2 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, MO2 days ago $115k - $184k
...services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer - Java Overview: Mastercard’s Enterprise Credit Risk (ECR) team is seeking a talented Senior Software Engineer – Java Full Stack to...JavaFull timePart timeWorldwideFlexible hours3 days per weekMastercard
O Fallon, MO13 days ago$96k - $163k
...situations and making decisions with a sense of urgency is needed. • Experience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby. • Interest in designing, analyzing and troubleshooting large-scale distributed systems. • We need...JavaFull timePart timeWorldwideFlexible hoursShift workMastercard
O Fallon, MO17 days ago- ...Design, develop, test, and support scalable cloud-native applications and services Build and maintain backend solutions using Java and Spring Boot Develop and enhance modern user interfaces using React and TypeScript Design and implement REST APIs and service...JavaFull timePart timeWorldwideFlexible hours
Dynamic Yield
O Fallon, MO2 days ago - ...Title: SDET Lead [Java Developer with Selenium] Location: O'Fallon, MO (on site from day1) Key Skills and Experience: • Hands on Java/Rest API testing experience • Test automation, Ops gating, Integration Testing • Rest Assured and Framework development...Java
Maintec Technologies
O Fallon, MO1 day ago - Job-ID33138892Reference26-02423TypeContracta { text-decoration: none; } tr th, tr td { } tr th { } Java DeveloperJob OverviewWe are seeking multiple Java Developers to support the continued development and enhancement of enterprise voice and customer interaction...Java
TalentsBridge
Maryland Heights, MO2 days ago - ...patterns such as layered architectures, microservices, event-driven systems, and distributed applications. Working experience in Java, Golang, Kotlin, or similar programming languages. Familiarity with Spring Boot, Spring, Hibernate, or similar frameworks. Exposure...JavaFull timePart timeWork experience placementWorldwideFlexible hours
Dynamic Yield
O Fallon, MO4 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, MO3 days ago - ...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 Spring,...Java
Vets Hired
O Fallon, MO3 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, MO2 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, MO3 days ago - ...success in leading a small to large-scale software development, testing, and performance across multiple groups. Sound knowledge of Java, Spring, JUnit, Eclipse IDE, Rest Assured, Appium, Jbehave/Cucumber frameworks, Databases, APIs (REST/SOAP), Continuous Delivery...JavaWork experience placement
Samprasoft
O Fallon, MO3 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, MO18 hours 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, MO2 days ago - ...situations and making decisions with a sense of urgency is needed. • Experience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby. • Interest in designing, analyzing and troubleshooting large-scale distributed systems. • We need...JavaFull timePart timeImmediate startWorldwideFlexible hours
Mastercard
O Fallon, MO18 hours 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, MO20 days ago- ...Mastercard Inc. is seeking a Lead Site Reliability Engineer to ensure the reliability, scalability, and performance of critical Java/Spring-based applications within the Business Operations organization. You will mentor junior engineers, drive automation initiatives...Java
- 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...Full time
Techvilla Solutions
O Fallon, MO20 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
$120k - $180k
...skills using Chrome DevTools, Lighthouse, and browser profiling tools. Experience consuming backend services built with .NET Core, Java Spring Boot, Node.js, or Python. Experience working in Agile Scrum development environments. Preferred Qualifications...JavaFull timeH1bLocal areaRemote workVisa sponsorshipBright Vision Technologies
Wildwood, MO2 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 hoursMastercard
O Fallon, MO9 days ago
