Senior Java Developer

3B Staffing LLC

Colorado Springs, CO

Senior Java Developer remote

RESPONSIBILITIES

Design, develop, and maintain scalable Java and Spring Boot applications, including batch processes and RESTful APIs
Participate in the modernization of legacy systems, including migrating Java/Solaris workloads to AWS Batch
Focus on standalone Java process with EJB components, followed by Spring API development
Collaborate with the data team to build and enhance data-driven solutions; write efficient SQL queries and interact with data warehouses (Oracle, Redshift, Postgres, etc.)
Contribute to the development and deployment of microservices in a cloud-first environment (AWS)
Leverage AWS services such as Lambda, API Gateway, and Aurora as part of backend development workflows
Support continuous integration/continuous deployment (CI/CD) pipelines using tools like Jenkins and GitHub/GitLab/Bitbucket
Work within a cross-functional team following DevOps principles to ensure secure, reliable, and maintainable solutions
Operate effectively in Linux/Unix environments, as well as Windows when needed

EXPERIENCE REQUIRED

4+ years of professional experience as a Java developer, including experience with Java 8.1 and Java 21
4+ years working with Spring and Spring Boot, including REST API development
4+ years of experience writing complex SQL queries and working with relational databases (Oracle, Postgres, Aurora, Redshift, MySQL, etc.)
2+ years hands-on experience with AWS and familiarity with key services (Lambda, API Gateway, etc.)
Solid experience with CI/CD pipelines (e.g., Jenkins) and version control (GitHub, GitLab, Bitbucket)
Comfortable working in Linux/Unix environments
Familiarity with DevOps principles and practices

PREFERRED EXPERIENCE

Experience in data engineering or data-heavy applications
Exposure to data warehouse concepts and modernization efforts
Experience working in a distributed team (onshore/offshore)
Prior work on AWS Batch or similar large-scale data processing pipelines

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Vacancy posted 2 days ago

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