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Flexible Java Software Engineer Jobs in Missouri

ACI Infotech

Java Developer

Lake Saint Louis, MO · On-site

$48.25 - $62.50/hr

... software engineer will have: Bachelors or Masters degree, preferably in Computer Science, Computer Engineering or other technical (STEM) field or an equivalent combination of education and experience ...

Ask IT consulting

JAVA Engineer

Saint Louis, MO

$50.25 - $69/hr

... software design and development and should be comfortable in a Linux shell Experience with build systems such as: Ant or Maven PREFERRED EXPERIENCE Project experience with JPA Project experience with ...

The Giant Bullseye

Senior Java Engineer

Saint Louis, MO

$55.75 - $71/hr

Overview We are looking for a highly skilled Senior Java Engineer to design, develop, and maintain ... quality software solutions * Participate in code reviews, performance optimization, and ...

Equifax, Inc.

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Bachelor's degree or equivalent experience * 5+ years of software engineering experience * 5+ years experience writing, debugging, and troubleshooting code in mainstream Java, SpringBoot, TypeScript ...

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Flexible Java Software Engineer information

What is a Flexible Java Software Engineer?

A Flexible Java Software Engineer is a software developer specializing in Java who can adapt to various roles, projects, or work environments. This may include working on different parts of the software stack, collaborating with cross-functional teams, or adjusting to changing project requirements. Flexibility in this context means being comfortable with both front-end and back-end development, learning new technologies as needed, and working in agile or dynamic settings. These engineers are valued for their ability to quickly respond to business needs while maintaining high-quality code and efficient development practices.

What are the key skills and qualifications needed to thrive as a Flexible Java Software Engineer, and why are they important?

To thrive as a Flexible Java Software Engineer, you need strong proficiency in Java programming, object-oriented design, and familiarity with software development methodologies, typically supported by a degree in computer science or related experience. Experience with development frameworks (such as Spring or Hibernate), version control systems (like Git), and continuous integration tools is commonly required. Adaptability, problem-solving skills, and effective communication enable collaboration and quick learning in diverse project environments. These skills and qualities are crucial for delivering high-quality, maintainable software solutions that meet evolving business needs.

What is the difference between Flexible Java Software Engineer vs Java Developer?

AspectFlexible Java Software EngineerJava Developer
Required CredentialsBachelor's in Computer Science or related, Java certifications often preferredBachelor's in Computer Science or related, Java certifications often preferred
Work EnvironmentAgile teams, project-based, often remote or hybridOffice or remote, project-focused, collaborative teams
Employer & Industry UsageTech companies, startups, consulting firmsSoftware firms, financial institutions, tech companies
Common Search & ComparisonOften compared for flexibility and scope of workCompared for specialization in core Java development

The Flexible Java Software Engineer typically works in dynamic, project-based environments with an emphasis on adaptability and broad skill sets. Java Developers often focus on core Java coding and application development. While both roles require similar credentials, the engineer role emphasizes flexibility and cross-functional tasks, making it suitable for diverse projects and teams.

How do Flexible Java Software Engineers typically balance independent work with team collaboration in their daily routines?

Flexible Java Software Engineers often enjoy a mix of autonomous coding time and collaborative tasks such as code reviews, sprint planning, and daily stand-ups. While much of their work may be completed independently—especially in remote or flexible environments—they regularly communicate with team members to align on project goals, troubleshoot issues, and share progress. Adapting to different communication tools and being proactive in updates helps ensure smooth collaboration and project success. This balance allows for both focused development and strong teamwork, which are key to thriving in flexible roles.
What are the most commonly searched types of Java Software Engineer jobs in Missouri? The most popular types of Java Software Engineer jobs in Missouri are:
What cities in Missouri are hiring for Flexible Java Software Engineer jobs? Cities in Missouri with the most Flexible Java Software Engineer job openings:
Flexible Java Software Engineer jobs near you
Principal Software Engineer - Java/Spring Boot/AWS/Junit

Principal Software Engineer - Java/Spring Boot/AWS/Junit

Federal Reserve Bank of Richmond

Saint Louis, MO

Full-time

Posted 10 days ago

Job description

CompanyFederal Reserve Bank of BostonFederal Reserve Financial Services (FRFS) delivers a suite of payments services to financial institutions via FedLine Solutions, FedNowSM, Fedwire, National Settlement Service (NSS), FedCash, FedACH (Automated Clearing House), and Check Services. We are currently leading a strategic effort to transform FRFS to a national, enterprise-focused organization. Through our evolved structure, we will meet the needs of the marketplace for new products and services more quickly, seek to provide a more robust and unified customer experience across our financial service offerings, and create new career growth opportunities for FRFS staff.
The Federal Reserve has developed a new interbank 24x7x365 real-time gross settlement (RTGS) service with integrated clearing functionality, called the FedNow Service. This service enables financial institutions to provide their customers with the ability to send and receive payments any time, any day, and have full access to those funds within seconds. This position is a unique opportunity to be part of this mission-critical Federal Reserve initiative that is transforming the payments landscape in the United States.
Top level technical expert in one or more highly specialized areas of applications systems analysis and programming. Responsible for software design, coding, testing, debugging, and documentation. Has full technical knowledge of all phases of applications systems analysis and development. Provides technical leadership on complex projects. Interacts with internal project teams and work groups regularly. Level of work required is considered highly advanced and staff must be able to work under minimal supervision. This job does not have any direct reports. You have an appetite to learn, and a passion for technology, innovation, and developing new skills on evolving technologies.

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

Salary

The salary range for this position is $173,400.00 - $216,700.00 - $260,000.00. The Boston Fed believes in salary transparency. The final salary and offer will be determined by the applicant's background, skills, internal equity, and alignment with market data. Whether you're developing into the job or are a more seasoned candidate, we aim to pay competitively. The position and job description posted is for a Principal Software Engineer however, candidates will be placed in an appropriate level within the Software Engineer job family based on the extent of their experience. If you reside outside of the 1st District, you may be hired by your local Federal Reserve District and compensation will follow hiring District's range and policy.

The Federal Reserve Bank of Boston is committed to provide equal employment opportunities to all persons without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, age, genetic information, disability, or military service.

All employees assigned to this position will be subject to FBI fingerprint/ criminal background and Patriot Act/ Office of Foreign Assets Control (OFAC) watch list checks at least once every five years.

For this job, any offer of employment is contingent upon successfully passing a two-phase security screening. The first phase consists of the satisfactory completion of a physical examination (including a drug screening), reference checks, and a security investigation consisting of credit and criminal history checks.

The second phase, which might not be complete until after you begin working at the Reserve Bank, is an additional risk-based security screening determined by the risk rating of the position. Depending upon the sensitivity of the position, this phase may include, and is not limited to, work and residency eligibility verification, and personal interviews with the candidate, references, and prior employers.

All applicants must have resided in the United States for at least three (3) years

Full Time / Part TimeFull timeRegular / TemporaryRegularJob Exempt (Yes / No)YesJob CategoryInformation Technology Family GroupWork ShiftFirst (United States of America)

The Federal Reserve Banks are committed to equal employment opportunity for employees and job applicants in compliance with applicable law and to an environment where employees are valued for their differences.

Always verify and apply to jobs on Federal Reserve System Careers (https://rb.wd5.myworkdayjobs.com/FRS) or through verified Federal Reserve Bank social media channels.

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