> Markdown version of [/jobs/ext/4603302-cno-application-software-engineer-python-jms-ruby](https://www.wearedevelopers.com/jobs/ext/4603302-cno-application-software-engineer-python-jms-ruby). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # CNO - Application Software Engineer - Python, JMS, Ruby - **Company:** Erias Ventures, LLC - **Location:** Annapolis Junction, MD, United States - **Salary:** $230,000.0 - $250,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Apache ActiveMQ, Software Applications, Code Review, Continuous Integration, Linux, Data Flow Control, Java Message Service (JMS), Spring Framework, Python (Programming Language), Apache Maven, Object-Oriented Software Development, Ruby, Software Construction, Software Engineering, Subversion, Systems Integration, Scripting, Spring-boot, Git, Infrastructure Automation Frameworks, Bitbucket, Jenkins - **Published:** November 6, 2026 - **Apply:** https://www.careerbuilder.com/job-details/cno-application-software-engineer-python-jms-ruby-annapolis-junction-md--1278f0f8-8202-4896-9e53-afffa3d2c184 ## About the Role Software Engineering, Python Programming/Scripting Language, Java Message Service (JMS), Ruby, Entrepreneurship, Problem Solving Skills, Communication Skills, Java, Ruby, Testing, A current Top-Secret/SCI with FS polygraph security clearance is required. Candidates cannot be sponsored or nominated for a government security clearance under this position. * Six (6) years of experience developing in Java, including experience utilizing Spring Boot. * Two (2) years of experience developing in Python to support test drivers. * Five (5) or more years of experience in Software System Design, Development, Integration, and Testing. * Experience developing in a Linux environment. * BA or BS degree Desired skills: * Experience developing/integrating with JMS (ActiveMQ). * One (1) or more years of experience with Ruby. * Experience with Python scripting in the development of various utilities (e.g., prototypes, automation tools). * Experience with Continuous Integration solutions (e.g., Jenkins) and automating test/build procedures. * Familiarity with configuration management tools (e.g., BitBucket, Subversion, Git). * Familiarity with Maven. ## Description HSDF Engineer - Works as a member of a four-person dataflow team. Works closely with clients and key stakeholders to implement dataflow (HSDF) solutions leveraging corporate tooling. Develop and implement C2 UI features and plugins by using skills with Python, Java, Ruby, and Spring/Spring Boot. Leverage expertise with software engineering best practices, including Object-Oriented Design, Continuous Integration, and automation/scripting of test procedures. Design and implement software, contribute to architectural, design, and code reviews, coordinate with organizations that manage dataflow schemas and deploy dataflow solutions into production.Requirements