Weekend Federal Java Developer Jobs in Chicago, IL

What will be expected of you-

• Serves as a Principal Software Engineer: to design, develop and implement new complex solutions in accordance with FedNow and Fed Standards
• Ensures that the quality of software developed, maintained and enhanced in-house and installed into production is sufficient to prevent the occurrence of catastrophic defects that cause the customer significant problems, missed deadlines, or interruption to the production environment
• Develops software solutions in Java, Spring, Terraform, NoSQL and RDS in the Cloud
• Develop end to end Infrastructure-as-Code solutions in Cloud
• Provides input into strategic and tactical planning of software solutions and software development lifecycle changes
• In addition to being able to engineer across numerous areas of technology, you'll serve as subject matter expert in one or more areas
• Trains and consults cross functionally within the organization on troubleshooting/resolving highly complex and/or highly time critical problems
• Demonstrates skill dexterity; seeking to continuously adapt and employ new technical skills alongside proven staples
• Ensure compliance with Fed policies, procedures and standards

Logistics& Requirements-

• Deep expertise in Java and proficient knowledge of programming languages (JavaScript, XML, JSON, HTML, CSS etc. Python a bonus). Experience with modern Java features like generics,streamsand lambdas.

• Experience using JUnit 5+ to write integration and unittests anduseits lifecycle interfaces and annotationsto handle related setup and teardown tasks.Understanding of how to useJUnit's extension and lifecycle annotations and interfaces to create tools that enhance its default functionality andmonitortest plan execution results.

• Experience with Apache Maven or Gradle to handle tasks such as compilation, dependency management, testing,packagingand deployment. Knowledgeof Apache Maven's build lifecyclesphases, experience with custom plugin development and how tomap a custom plugin's goals to Maven lifecycle phases

• Proficient in MockitoandAssertJas well asintegration testing with @SpringBootTest.

• Understanding of object-oriented design principles (ex: SOLID) to create maintainable, extensible code and knowledge of design patterns, inheritance hierarchies, polymorphism, composition over inheritance, effective interface design,encapsulationand immutability.

• Comprehensive knowledge of Spring Boot's core fundamentals, includingauto-configuration, starter dependencies, anditsopinionated approach to application setup thateliminatesmuch of the boilerplate configurationrequiredin traditional Spring applications. Understandingofdependency injection, the IoC container, bean lifecycle managementas well asproficiencyin using annotations like @Component, @Service, @Repository, and @Autowired.

• Experience with AWS services, and integrating them into an application

• Expertisein building RESTful APIswith Spring Boot, including knowledge of @RestController, @RequestMapping, request/response handling, content negotiation, and exception handling.

• Understand data access patterns using Spring Data JPA, including repository interfaces, custom queries, anddeclarative / programmatictransaction management.

• Proficient knowledge of database development (SQL, Oracle, DB2)

• Ideally you'll have experience with leading edge Cloud technologies, such as Kafka, in-memory and NoSQL databases, messaging platforms, memcache etc).

• Proficient knowledge of cloud security for application development and delivery

• Ideally, Infrastructure as Code (IAC); Terraform

Nice to Have-

• Experience with API Development and consumption and microservices architecture

• Familiaritywith database migration tools like Flyway or Liquibase.

• Experience usingSpring Securityto handle security concerns in Spring Boot apps.

• UnderstandingSpring Boot's variousapplication properties configurations (profiles, YAML vs properties files) and externalized configuration management.

• Knowledge of monitoring and observability through Spring Boot Actuator, including custom health checks and metrics.

• Proficiencyworking withXML Schema Definition (XSD)schemasand XSLT (Extensible Stylesheet Language Transformations)templates,includingXML schema design principles, validation techniques, Java-XML binding via JAXB, namespace management,XSLT processing models, template creation,XPath expressions, and transformation patterns for converting XML to various output formats.

• Proficientwith unit testing, integration testing between system components, performance testing toidentifybottlenecks,soak testing for long-term stability verificationandAPI testing.

• Strong interpersonal, teamwork and negotiation skills

• Strong problem solving and critical thinking skills