Java​/J2EE Software Engineer

Position Overview

Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise Security and Cloud Computing solutions to support large organizations. Our capabilities include supplying federal government entities and private businesses with software development, scientific and engineering technical assistance, systems integration, and enterprise security. Since its founding in 1996, OST has been committed to delivering high‑quality, best‑in‑class results that bring added value to our clients while investing in our employees’ futures by providing exciting projects to work on, and robust benefits to include technical training and certifications, relocation assistance and a 401K match with immediate vesting.

Back‑End Software Engineer

• Clearance:
  Active TS/SCI w/CI Poly
• A software developer with experience in Java development utilizing various libraries such as Spring Boot, Mockito, Lombok, OpenAPI (Swagger) and other similar libraries developing RESTFul services. The software application is managed through Git and built using gradle. Other third‑party applications that are utilized are Kafka, Mongo
  
  DB, Active
  
  MQ and/or NiFi. Applications are containerized and deployed to a Kubernetes cluster using Helm Charts. Experience with Amazon Web Services (AWS) is also desired.
• Experience with Java/J2EE object‑oriented programming language
• Experience with Spring Boot or Spring Framework
• Experience working with microservices and containerization technologies, including Docker, Bitbucket, Kubernetes, or Open Shift
• Experience with integration and development tools, including AWS, Docker, Bitbucket, Jenkins
• Experience with supporting systems engineering efforts in system design, solution engineering, and software development
• Experience with Linux OS and command line interface

• 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, Spring Data

• 2+ years of experience with Java
• 1+ years of experience 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
• Top Secret clearance
• HS diploma or GED
• Ability to obtain a DoD 8570 certification, including Security+ or CISSP, within 6 months of start date

• Experience with network security, including access and authorization for PKI and chain trusting
• Experience with writing unit tests and E2E testing
• Knowledge of Apache NiFi and Kafka
• Knowledge of JIRA, Confluence, Git, and Git Lab
• Ability to investigate root causes and provide corrective actions
• TS/SCI clearance with a CI Polygraph
• DoD 8570 certification, including Security+ or CISSP

• 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, Spring Data

• 5+ years of experience with Java
• 3+ years of experience 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 integration and development tools, including AWS, Bitbucket, or Jenkins
• Experience with supporting systems engineering efforts in system design, solution engineering, and software development
• Experience with Linux OS and Command Line Interface
• Top Secret clearance
• HS diploma or GED
• Ability to obtain a DoD 8570 Compliant Certification, including Security+ or CISSP, within 6 months of…