Average salary: $138,183 /yearly
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- ...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...Java
Dynamic Yield
O Fallon, MO23 hours ago - ...Production Support Engineer Location: OFALLON, MO – DAY 1 Onsite (hybrid) Duration – Long Term Project Scope: Debugging Skills, Java, Spring Boot, SQL, ITSM Activities, Remedy, Monitoring Role & Responsibilities: Engage in and improve the whole lifecycle...Java
Zortech Solutions
O Fallon, MO23 hours 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, MO23 hours ago - ...Job Description: Java Backend Engineer with Agentic AI skills. Java with Spring Boot - Mandatory • Experience in developing Agentic AI applications. - Mandatory • Knowledge of SQL with Oracle and PostgreSQL - Mandatory • Knowledge of REST API development and...Java
Diverse Lynx
O Fallon, MO4 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 team...JavaFull timePart timeImmediate startFlexible hours
Dynamic Yield
O Fallon, MO23 hours ago $92k - $147k
...knowledge of software engineering concepts and the software development lifecycle • Experience with one or more programming languages (Java is a must) • Familiarity with Agile development practices, testing concepts, and version control • Strong analytical, problem‑...JavaFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago$115k - $184k
...patterns/libraries/practices and enhance productivity All about you • Working experience across multiple programming languages (JAVA is a must) and frameworks • High-energy, detail-oriented, proactive, and able to function independently under pressure • Passion...JavaFull timePart timeWork experience placementWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago$115k - $184k
...Salary: $115,000 - 184,000 per year Requirements: ~### ~ Proficient in core Java, Spring Boot, Spring (MVC, IOC, AOP, Security), SQL, RDBMS (Oracle and PostGRES), Web-services (JSON and SOAP), Kafka, Zookeeper. ~ Experience in developing microservice applications...JavaFull timeMastercard
O Fallon, MO1 day ago$99k - $225k
...development Experience developing applications using Large Language Models (LLMs) Experience with programming languages such as Python or Java Experience with software design patterns Knowledge of embedding models, vector databases, and semantic search Knowledge of AI...JavaLocal area$87.1k - $157.45k
...Proficiency with the following technologies: Web: HTML, CSS, JSON, Ajax, and REST APIs Object-oriented Programming: Python, Java, or JavaScript Advanced Programming: Go Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django...JavaContract workLocal areaImmediate startLeidos
Earth City, MO4 days ago$105.4k - $124k
...equivalent work experience- Three to five years of relevant experiencePreferred Skills/ExperienceExpert level hands-on experience in Java/J2EE, Spring Boot, Spring Cloud, Hibernate/JPAExpert level hands-on experience in RESTful API design and developmentExpert level...JavaFull timeWork experience placementLocal area3 days per week- ...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...JavaContract work
$119.77k - $140.9k
...the success of our technology initiatives in our digital transformation journey.The Senior Software Engineer with strong expertise in Java and Spring Boot will be responsible for the analysis, design, testing, development and maintenance of best-in-class software...JavaFull timeLocal area3 days per week$98.18k - $115.5k
...enterprise-scale applications and business processes.Built and consumed REST APIs, GraphQL services, and microservices architectures using Java, Python, Spring Boot, FastAPI, and Node.js.Integrated AI capabilities with enterprise systems, data platforms, APIs, business...JavaFull timeWork experience placementLocal area3 days per week- ...responsible for code review and code quality.QualificationsRequired: • Strong in TDD techniques; • good working knowledge of modern Java technologies including AngularJS, REST Services, jQuery, Groovy, Grails and CucumberAdditional InformationSummaryFunction: Information...Java
- ...across the organization. Support API, front-end, and automated testing of software including Postman, SoapUI or Apache JMeter. Utilize Java 8, 9, or higher versions to develop and maintain Java-based applications including writing code, debugging, and troubleshooting....JavaLocal area
$122k - $207k
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 ...Full timePart timeWorldwideFlexible hoursShift workMasterCard
O Fallon, MO3 days ago$122k - $207k
...a candidate with a bachelors degree in computer science or a closely related discipline. We need strong hands-on experience with Java, Spring Framework, Python, or Go. We value solid DevOps and configuration management expertise. We require experience working...JavaFull timeMastercard
O Fallon, MO23 hours ago$140k - $231k
...constraints • Guide teams in applying foundational computer science principles to solve complex engineering problems Technologies • Java, J2EE, microservices, RESTful APIs, Angular, Web Services, JavaScript, HTML/CSS • Frameworks: Spring (Spring Boot, Spring Data,...JavaFull timePart timeWorldwideFlexible hours$140k - $231k
...You - 10+ years of software engineering experience. - 3+ years leading large-scale distributed system initiatives. - Expert-level Java, Spring Boot, REST APIs, microservices architecture, and distributed systems expertise. - Strong software architecture and...JavaFull timePart timeWorldwideFlexible hours- ...hosted in various cloud provider platforms like GCP, AWS and Azure. We also support few applications hosted on-premises developed in Java & Angular JS. Partner with business owners to understand new business opportunities and define the business and functional...JavaRelocation
Samprasoft
O Fallon, MO1 day ago $205,000 per week
Mastercard seeks a Lead Site Reliability Engineer in our Information Technology & Digital Solutions team within the Payments Solutions & Processing industry. You will design and operate secure, highly available, low-latency platforms that power global payment services. ...WorldwideMastercard
O Fallon, MOmore than 2 months 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, MOmore than 2 months ago$205k
Mastercard is seeking a Lead Site Reliability Engineer to drive reliability, scalability, and security for mission-critical financial services platforms. You will design and optimize cloud-native, highly available systems, implement SRE best practices, and lead incident...Mastercard
O Fallon, MOmore than 2 months ago$96k - $163k
...complex stakeholder interactions while making prompt decisions. Proficiency in at least one programming language such as C, C++, Java, Python, Go, Perl, or Ruby is preferred. Keen interest in designing, analyzing, and resolving issues in large-scale distributed systems...JavaFull timeMastercard
O Fallon, MO-58$96k - $163k
...technical audiences. We need experience in performance bottleneck analysis and designing systems for scale. We need experience with Java Virtual Machine internals and garbage collection tuning. We need experience with one or more of the following: database internals...JavaFull timeMastercard
O Fallon, MO1 day ago$122k - $207k
...challenges, integrating diverse sources, and operating pipelines in production. Big Data & Cloud Expertise: Strong skills in Python and/or Java/Scala. Deep experience with Spark, Hadoop, Hive/Impala, and Airflow. Hands‑on work with AWS, Azure, or GCP using cloud‑native...JavaFull timePart timeWorldwideFlexible hours- .../Metrics/etc. Excel, PowerPoint, Word (make metrics out of it) Required. Technical Background- not a developer, but know oracle, java, etc. know which application is which. They just need to be able to talk on the technical/communicate. Requires excellent communication...JavaWork at officeLocal areaImmediate startRemote workRelocation
$63 - $90 per hour
Location:Chesterfield, MOType:ContractJob#46727Technology Partners is currently seeking a talented Senior .NET Full-Stack Developer. Do you have experience building large-scale distributed applications using .NET, ASP.NET Core, AWS services, and modern JavaScript frameworks...$140k - $231k
...with Microsoft Power Platform, Power Automate, workflow automation technologies, or low-code/no-code solutions. • Experience with Java, React, API-based architectures, and cloud-native platforms. • Experience with distributed systems, high-availability architectures...JavaFull timePart timeWorldwideFlexible hours
