Java Engineer
United IT
Java Engineer
An ideal candidate for this role would have extensive experience in Java development and be well-versed in cloud-native applications, microservices, and a modern technology stack. Here’s a breakdown of the perfect candidate profile:
- Java Expertise: Has at least 8+ years of hands-on Java development experience, specifically in J2EE (Java 2 Platform, Enterprise Edition). This extensive experience implies that the candidate is proficient in enterprise-grade Java applications, design patterns, and performance optimization.
- Microservices and REST API Proficiency: Skilled in developing web services, particularly microservices architectures, and REST APIs. This indicates a strong understanding of how to build, scale, and maintain distributed systems effectively.
- Database and SQL Skills: Proficient in Oracle Database, with expertise in writing complex SQL queries. This level of database knowledge is crucial for data-heavy applications and backend services.
- Cloud-Native and Platform Experience: Familiarity with cloud platforms, preferably AWS or Azure, as well as experience with deploying cloud-native applications. Knowledge of tools like PCF (Pivotal Cloud Foundry) demonstrates the candidate’s ability to work within cloud environments effectively.
- Modern Software Design Principles: Deep understanding of design principles like SOLID, DRY (Don't Repeat Yourself), and Single Responsibility. This skill shows the candidate’s commitment to writing clean, maintainable, and scalable code.
- Broad Technology Stack Experience: Familiar with a range of modern tools and technologies, including NiFi (data flow management), NATS (messaging system), Kafka (event streaming), Zookeeper (coordination service), Splunk (monitoring), Redis (in-memory data structure store), Cassandra (NoSQL database), and Oracle. The ability to simplify and create common libraries/interfaces for these tools is a plus.
- Leadership and Collaboration Skills: Experience driving end-to-end development, conducting code reviews, developing test strategies, coordinating with cross-functional teams, and resolving operational issues. This suggests that the candidate can lead and manage projects while also being a key technical contributor.
- Performance Optimization and Code Reviews: Skilled in performance code reviews and implementing best practices for efficient, scalable code.
A candidate with these qualifications would likely have a background in enterprise or backend development within cloud environments, with experience in leading complex projects and collaborating across teams.
Vacancy posted 5 days ago
Similar jobs that could be interesting for youBased on the Java Engineer in O Fallon, MO vacancy
- ...Senior Engineer II Relocation: Must relocate to O'Fallon MO in 2 months. 2 days onsite hybrid as of now (Tuesday and Thursday) Interviews... ...move quickly Environment: 2 days onsite hybrid as of now Java Back End Java and Spring Spring Boot PCF Environment –...SuggestedRelocation
- ...Java Full Stack Engineer Primary Talent Partners has a new contract opening for a Java Full Stack Engineer with our global technology client in O Fallon, MO. This is a 6-month contract with a potential for extension. Pay: $74.00 - $84.00/hr W2 contract, no PTO,...SuggestedContract workWork experience placementWork at officeLocal area
- ...Senior JAVA Engineer O'Fallon MO - Day 1 Onsite BS in CS 10+ yrs. experience Experience in object-oriented programming and concepts. Experienced in Java backend application development. Comfortable enough in handling algorithms, data structures...Suggested
- ...Java AI Engineer We are seeking a highly skilled Java Developer with Agentic AI experience to design and develop next-generation Agentic AI applications. The ideal candidate will have strong expertise in Java, Spring Boot, backend development, and event-driven architectures...Suggested
- ...Sr. Java Developer Key Skills and Experience: ~ Strong hands on experience in Java(J2ee) ~ Strong in webservices(microservices), Rest API's, Oracle DB knowledge, Cloud native(preferably AWS or Azure) ~ Ability to drive end to end development, performance code...Suggested
- Digital Identity Technical Architect Overview: As part of an exciting, fast paced environment developing digital identity and security solutions in the mobile and e-commerce space, this position will provide technical expertise within the development lifecycle for new...
- ...Top 3 Required Skills: 1. Java Full Stack Engineering Java 8+, J2EE, Spring, Hibernate Angular/React front-end development REST/SOAP APIs and enterprise application development 2. Cloud-Native Architecture & DevOps Cloud-Native / AWS or Other...Work experience placement
- ...Backend Developer 6+ years of experience in backend development using Java. Strong expertise in Core Java, Spring Boot, and REST APIs. Hands-on experience with Kafka / event streaming platforms. Solid understanding of event-driven architecture concepts....
- ...Company Description Job Description Key Responsibilities: Design, develop, and maintain backend applications using Java 8 and the Spring Framework. Build real-time, event-driven systems using Kafka. Collaborate with cross-functional teams to deliver...
- ...Java Backend Developer Location: O'Fallon, MO, USA Years of Experience: 7 to 10 Years Job Summary: We are seeking a skilled Java Backend Developer with a strong background in software development to join our dynamic team. The ideal candidate will have extensive...
- ...Interview : Video + F2F Visa : USC, GC This is hybrid from day-1 Lead Java Developer Responsible for identifying and resolving end-to-end performance bottlenecks across distributed systems, Spring Boot services, middleware components...
- ...containerization # Fluency in one or more languages like Scala, Java, Python etc. # Understanding/experience in Apache Spark... ...What are a couple of desired/nice to have skills? Data engineer/SDET # Knowledge of Microservices and scaling...
- ...Lead Full Stack Engineer Job Location: O'Fallon, MO (Hybrid onsite 3 days/week) Job Travel Location(s): Must be able to travel to... ...Employment Type: C2H Duration: Long Term Key Technology: Java, Full Stack, SQL Job Responsibilities Lead the design,...Work at office3 days per week
$122k - $207k
...greatest potential. Title and Summary Lead Site Reliability Engineer-2 Overview: Who is Mastercard?At Mastercard technology, we... ...ensuring the reliability, scalability, and performance of our Java, Spring Framework applications, supporting essential services...Full timePart timeWorldwideFlexible hours- ...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...Local areaRemote workRelocation
- ...Top Priority Requirements Strong expertise in Java, APIs, Angular, and React Experience building Agentic Frameworks utilizing... ...platform requirements Position Overview Seeking a Lead Software Engineer with strong full-stack development experience and expertise in...Temporary work
- ...Lead Software Engineer (C/C++) This is an exciting opportunity for you to join Mastercard on the global credit card authorization team. The system facilitates billions of transactions among issuers, acquirers, and service providers. You will have the chance to lead...
- ...Site Reliability Engineer The BizOps team is looking for a Site Reliability Engineer who can help us solve problems, build our CI/CD... ...Experience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby. Interest in designing, analyzing and...Shift work
- ...Job Description: A hands-on full stack engineer that can code and build high quality secure front end and REST API/backend... ...write secure code in backend and frontend programming languages (Java, JavaScript, Angular, SQL) and familiar with secure coding...
$140k - $231k
...greatest potential. Title and Summary Lead Software Development Engineer Overview The Lead Software Development Engineer is a technical... ...large-scale distributed system initiatives. - Expert-level Java, Spring Boot, REST APIs, microservices architecture, and distributed...Full timePart timeWorldwideFlexible hours$60 - $70 per hour
...Software Engineer II Primary Talent Partners has a new contract opening for a Software Engineer II with our global technology client... ...Software Development Engineer is a hands-on developer specializing in Java development with a particular focus producing micro services...Contract workLive inLocal area$72k - $115k
...Software Engineer I Be part of the Shared Services, Fraud Products team developing new capabilities for Mastercard's Decision Management... ...to combat fraud and validate cardholder identity. Our patented Java-based platform processes billions of transactions per month in...$140k - $231k
...Lead Software Engineer Mastercard is a global technology company in the payments industry, focused on powering an inclusive, digital... ...reliability) • Proven experience in backend development with applicable JAVA technologies (Core JAVA, Spring Integration, Spring Boot,...Full timePart timeWorldwideFlexible hours$60k - $135k
...our holistic portfolio of capabilities in consulting, design, engineering, and operations, we help clients realize their boldest ambitions... ...Job Description We are seeking a highly skilled Java Full Stack Developer with strong experience in building enterprise...Minimum wageLocal area$122k - $207k
...related discipline. We need strong hands-on experience with Java, Spring Framework, Python, or Go. We value solid DevOps and... ...activities to protect customer experience. We mentor junior engineers and provide technical guidance across the team. We uphold compliance...Full time- ...processes billions of transactions per month with execution times literally 10X faster than you can blink. The Consultant Software Engineer will play a critical role in creating new product functionality within this platform including world-class backend and consumer-...
$72k - $115k
...and governments realize their greatest potential. Title and Summary Software 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...Full timePart timeWorldwideFlexible hours$122k - $207k
...greatest potential. Title and Summary Lead Service Management Engineer Who is Mastercard? We work to connect and power an inclusive... .... Big Data & Cloud Expertise: Strong skills in Python and/or Java/Scala. Deep experience with Spark, Hadoop, Hive/Impala, and Airflow...Full timePart timeWorldwideFlexible hours$92k - $147k
...realize their greatest potential. Title and Summary Software Engineer II Overview: At Mastercard, our industry expertise is enhanced... ...computer science concepts. • Strong technical experience with Java, Java/J2EE, Linux, Oracle, and SQL programming. • Strong knowledge...Full timePart timeWorldwideFlexible hours$72k - $115k
...realize their greatest potential. Title and Summary Software Engineer I About the Role As a Software Engineer, you'll work alongside... ...object-oriented programming and modern programming languages such as Java, Python, C#, or similar • Understanding of unit, functional,...Full timePart timeInternshipWorldwideFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Java Engineer. Be the first to apply!
Related searches
- java web developer O Fallon, MO
- java software engineer O Fallon, MO
- java spring developer O Fallon, MO
- java developer remote part time O Fallon, MO
- java developer O Fallon, MO
- entry level java developer remote O Fallon, MO
- senior java full-stack developer O Fallon, MO
- java programming O Fallon, MO
- java part time O Fallon, MO
- senior java j2ee developer O Fallon, MO



