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$115k - $184k
...- 184,000 per year Requirements: ~### ~ Proficient in core Java, Spring Boot, Spring (MVC, IOC, AOP, Security), SQL, RDBMS (Oracle... ...JSON and SOAP), Kafka, Zookeeper. ~ Experience in developing microservice applications and deploying them on public clouds such as Google...JavaFull timeMastercard
O Fallon, MO19 hours ago$40 - $80 per hour
...Job Title: Java Software Engineer II Duration (Contract): 12 Months Client Location: O'Fallon, Missouri Location... ...process financial transactions at scale. You will build Java microservices, support production systems, optimize platform performance, and...JavaHourly payContract work- ...Role: Java Engineer Work Location: O'Fallon, Missouri Onsite (5days) Duration: long term contract Key Responsibilities... ...development and be well-versed in cloud-native applications, microservices, and a modern technology stack. Here's a breakdown of the...JavaLong term contract
$92k - $147k
...experience. • Strong foundation in algorithms, data structures, and core computer science concepts. • Strong technical experience with Java, Java/J2EE, Linux, Oracle, and SQL programming. • Strong knowledge of Java, Spring Boot, Spring Batch, Hibernate, and REST API...JavaFull timePart timeWorldwideFlexible hours$92k - $147k
...scripts for front-end applications using the Angular framework. ~ Knowledgeable in creating microservices with Spring Boot. ~ Skilled in programming languages such as TypeScript, Java, and SQL. ~ Familiar with secure coding standards (e.g., OWASP, CWE, SEI CERT). ~...JavaFull timePart timeMastercard
O Fallon, MO19 hours ago$122k - $207k
...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 hoursMasterCard
O Fallon, MO3 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. Experience in...JavaShift work
Samprasoft
O Fallon, MO4 days ago $140k - $231k
...Lead Software Engineer to lead the architecture and design of microservices responsible for both API and web authentication authorizations... ...• Proven experience in backend development with applicable JAVA technologies (Core JAVA, Spring Integration, Spring Boot, Hibernate...JavaFull timePart timeWorldwideFlexible hours$140k - $231k
...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, Spring Batch,...JavaFull timePart timeWorldwideFlexible hours- ...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, MO3 days ago $140k - $231k
...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 software design leadership...JavaFull timePart timeWorldwideFlexible hours$140k - $231k
...solutions using best-in-class software design principles and microservices architecture. • Implement and manage unit, functional, and integration... ...security threats. • Lead software development efforts using Java, Spring Boot, and work with Oracle databases for performance...JavaFull timePart timeWorldwideFlexible hours$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$140k - $231k
...company-wide objectives • Strong hands-on experience in: o Java, Spring / Java EE o RESTful APIs o Frontend frameworks (... ...o Databases (Oracle / PostgreSQL) • Experience building microservices architecture, event-driven systems, and cloud-native applications...JavaFull timePart timeWorldwideFlexible hours- ...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
$115k - $184k
...principles. All About You •Strong hands-on experience with Java, Spring Boot, Kafka, REST APIs, JPA, and distributed systems.... ...troubleshooting and analytical problem-solving skills. •Experience with microservices, cloud-native applications, and CI/CD. •Experience building...JavaFull timePart timeWorldwideFlexible hours$115k - $184k
...and technical needs. Role •Design, build, test, deploy, and maintain scalable, cloud-native applications and microservices •Develop REST APIs using Java and Spring Boot, focusing on performance, scalability, and reliability •Translate requirements into well-...JavaFull timePart timeWorldwideFlexible hours$72k - $115k
...Engineer I Overview The Software Development Engineer is an early-career software engineer specializing in Java development with a focus on building microservices that support Mastercard's high-throughput, low-latency transaction processing platforms. This role provides...JavaFull timePart timeWorldwideFlexible hours$92k - $147k
...Software Development Lifecycle (SDLC). • Strong proficiency in Java and experience working with modern development tools and... ...Jira, Confluence, and Rally. • Exposure to cloud technologies, microservices architectures, and modern application development practices....JavaFull timePart timeWorldwideFlexible hours$115k - $184k
...operational support. The position requires strong expertise in Java-based application development, Spring Boot, Kafka, PostgreSQL,... ...to process high-volume transaction workloads. • Develop microservices and backend services using Java, Spring Boot, and Spring Batch...JavaFull timePart timeWorldwideFlexible hours$92k - $147k
...business unit that you join in. Role •Design, build, test, deploy, and maintain scalable applications and microservices •Develop REST APIs using Java and Spring Boot with a focus on performance and reliability •Apply software development, design, and architecture...JavaFull timePart timeWorldwideFlexible hours$92k - $147k
...continuing to grow your technical expertise. What You'll Do Software Development • Design, develop, test, and maintain Java/Spring Boot microservices. • Design software components and service interactions that support scalability, maintainability, and reliability...JavaFull timePart timeWorldwideFlexible hours$212k - $339k
...Deep expertise in modern application architectures, including APIs, microservices, event-driven systems, batch processing, and data platforms. • Strong hands-on knowledge of technologies such as Java, REST APIs, Kafka, messaging systems (MQ), Spring, CI/CD pipelines (...JavaFull timePart timeWorldwideFlexible hours3 days per week$108.4k - $135.5k
...environments. ~ Strong programming experience with web technologies such as: ~ Vue, Angular, or React ~ NodeJS, Python, Go, or Java ~ Proven experience with monitoring, alerting, and incident management for complex systems. ~ Demonstrated ability to...JavaFull timeRemote workFlexible hoursShift workWorld Wide Technology
Maryland Heights, MO3 days ago$40 - $80 per hour
...Job Title: Full Stack Java Developer Duration (Contract): 6 Months Client Location: O'Fallon, Missouri 63368 Location Preference: Onsite Job Description: As a Full Stack Java Developer, you will design, develop, modernize, and support enterprise...JavaHourly payContract work$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, MO1 day ago$140k - $231k
...enterprise • Provide technical leadership in architecture (microservices, APIs, scalable design) and system design decisions • Oversee... ...experience (microservices, APIs, scalable systems) • Strong Core Java experience • Deep familiarity with test automation...JavaFull timePart timeWorldwideFlexible hours$122k - $207k
...infrastructure as code, container platforms, CI/CD pipelines, and microservices architectures, while fostering a high-performing,... ...Proficiency in at least one programming language (e.g., Python, Java, Go) • Strong understanding of operating systems and enterprise...JavaFull timePart timeWorldwideFlexible hours$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, MO2 days ago$140k - $231k
...streaming systems etc.) ~ Experience with various coding languages Java, Go, C++,ESQL, etc. ~ Delivered scalable products through a... ...Kafka, NATS, etc) Experienced in building platforms with Microservice architecture and RESTful APIs. Experience using cloud-native...JavaFull timePart timeWorldwideFlexible hours
