Java Developer III

This job was posted by : For moreinformation, please see:Description:Java Developer IIILocation:Chicago, IL (Partial Remote)Employment Type:ContractRole OverviewAs a software developer, you will be responsible for the development ofmission-critical applications. This role involves buildinghigh-performing, real-time middleware solutions in the domains ofBaggage, Flight Operations, Reservation Management, and Check-in. Youwill focus on building data caches, real-time messaging applications,and delivering cloud-based solutions using current technologies andenterprise-grade integration software.Key Responsibilities- Participate in the full development life cycle, including requirements analysis and design.- Serve as a technical expert on development projects, writing technical specifications based on conceptual design and business requirements.- Support, maintain, and document software functionality.- Identify and evaluate new technologies for implementation.- Analyze code to find causes of errors and revise programs as needed.- Participate in software design meetings and analyze user needs to determine technical requirements.- Consult with end-users to prototype, refine, test, and debug programs to meet needs.- Conduct complex work critical to the organization with latitude for independent judgment.- May mentor less experienced peers and display leadership as needed.Required QualificationsExperience:A minimum of 4 years of experience in designing,developing, documenting, testing, and debugging new and existingsoftware systems or applications. The role is for a senior level withgreater than 8 years of experience.Technical Skills:- Hands-on experience in designing and developing applications using Java EE platforms.- Strong knowledge of object-oriented systems design, Java, SQL, and design patterns.- 2 years of Java and Web Services development.- Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management).- Excellent knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate).- Experience in the Spring Framework and at least one popular web framework (e.g., JSF, Wicket, GWT, Spring MVC).- Proficiency in software development best practices such as Continuous Integration, and Unit/Integration testing.Preferred Qualifications- Well-versed with Core Java and the Log4J framework.- Experience as a Senior Developer/Architect mentoring teams and leading design.- Experience with legacy messaging system migrations, such as TIBCO/MQ to a KAFKA-based architecture.- Experience developing applications on AWS; an AWS certified Developer is preferred.- Experience with DevOps tools and practices, including Harness, CVS, SVN, Github, Maven, Jenkins, and Gradle for CI/CD.- Experience creating reports/dashboards for application usage pensation & BenefitsThis employer is an equal opportunity employer. All qualified applicantswill receive consideration for employment without regard to race, color,religion, sex, sexual orientation, gender identity, national origin, orprotected veteran status and will not be discriminated against on thebasis of disability.Apex uses a virtual recruiter as part of the application process.Click[here](

Created: 2026-04-29