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Mid-Level On-Site Java Software Engineer

Northstrat

Salary not specified
Oct 28, 2025
Aurora, CO, US
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Northstrat is seeking an experienced and driven Mid-level Software (SW) Engineer to join our dynamic team to support, plan, and execute via the program’s SW development approach, including support for the design, development, testing, and performance analysis of the system.

Requirements

  • 2+ years of experience in Java
  • 1+ of experience in working with microservices and containerization technologies including Docker and Kubernetes
  • Experience with backend frameworks such as Spring Framework or Spring Boot
  • Experience with API development, including REST architectural style
  • Experience with Linux OS and Command Line Interface
  • Experience with writing unit tests and E2E testing
  • Knowledge of Apache NiFi and Kafka

Responsibilities

  • Support the design, development, testing, performance analysis, and maintenance of robust, scalable, and high-performance applications running on a modern, resilient and tailorable system.
  • Use provided development environments and best practices to support, plan, and execute via the program’s agile SW development approach
  • Leverage a sub-set of (but not limited to) the following technologies: Java, JavaScript, Git, SQL, Python, Server Side Development, Server Side Software, Middleware, Integration, API Development, Operating Systems, Core Application Systems, Data Integration, Application Integrations, Docker, Node.js, Groovy, Perl Programming, Scala, Spring Cloud, Spring Core, Spring-Boot, and Spring Data.
  • Inform the development approach, architecture, and technology stack through iterative retrospectives
  • Support for the design, development, testing, and performance analysis of the system.
  • Collaborate with cross-functional teams to define, design, and implement new features

Other

  • Must have an active Top Secret US government clearance.
  • Must have US citizenship
  • Must have at least a HS diploma or GED or bachelor’s degree in computer science or a related field, or equivalent experience
  • Must have the ability to obtain a DoD 8570 certification, including Security+ or CISSP, within 6 months of start date
  • Ability to work full time on-site