Software Engineer; R&D S&E

Software Engineer (R&D S&E) at JG Management Systems (JGMS)

We are seeking an experienced Software Engineer to design and implement cutting‑edge solutions for high‑consequence national security challenges. In this role, you will collaborate with customers to develop impactful capabilities that directly support warfighters, strengthen national security, and deliver measurable results for critical missions. Your contributions will foster innovation, leverage teamwork, and cultivate creativity while addressing key mission needs.

• Utilize your skillset in software system architecture, implementation, technical documentation, unit and integration testing, reliability and performance assessment, and systematic technology insertion to enhance mission capabilities using code bases ranging from 0.5 to 1.0+ million lines of code.
• Collaborate with technical design teams and subject matter experts to create innovative solutions that meet mission requirements and address end‑user needs.
• Work with Software Engineers, System Engineers, IT staff, management, and customers to implement solutions that address requirements; architect software systems, develop code, write unit tests, and create software tools to support the mission.
• Provide on‑call support for software discrepancy resolution in the production environment.
• Develop and execute test plans/procedures, create reports, and write software documentation.
• Perform system integration and testing.
• Apply system design principles to architect scalable, reliable, and secure solutions for critical missions.
• Develop and refine system CONOPS (Concept of Operations) to ensure technical solutions address operational needs.
• Work in a 24/7/365 on‑call support role to provide software discrepancy resolution.
• Work onsite 100% of the time at the Livermore, CA site.
• Travel up to 25% of the time.

A bachelor’s degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development.

• 10+ years of experience in front‑end, back‑end, or full‑stack development for code bases with 0.5 to 1.0+ million lines of code and the ability to quickly understand and contribute to complex software systems.
• Expertise in front‑end development with proficiency in Dust, JavaScript, Type Script, jQuery, HTML5/CSS, or Angular.
• Expertise in back‑end web application development using frameworks and tools such as Spring MVC, Tomcat, Jetty, and coding with languages such as Java, Python, C++.
• Experience with implementing custom Java applications using Apache Ignite 2 or 3, and/or experience modifying Apache Ignite open‑source software.
• Relevant experience with fixing bugs or implementing new features in open‑source software repositories of 2.5 million lines of code.
• Hands‑on experience with Oracle databases, including PL/SQL.
• Experience with Web Services, including WSDL, SOAP, and REST.
• Experience with Hazelcast, Apache Karaf, Apache Camel, Mina/Netty, OSGI, JMX, JDBC, Apache Aries, Log4J2, Apache CXF, Docker.
• Excellent communication skills and a demonstrated ability to develop technical ideas and results and present them in oral and written form in a concise manner.
• Ability to navigate ambiguous situations and collaborate effectively with stakeholders and internal/external mission partners.

The ability to obtain and maintain a DOE Q/SCI security clearance or equivalent DOD Top Secret/SCI security clearance, and willingness to take a polygraph test. A security clearance is required to start work.

A pre‑employment drug screening and background review that includes checks of personal references, credit, law enforcement records, and employment/education verification is required.

• Medical insurance – 100% company‑paid premiums for employees
• Dental and vision insurance
• 401(k) plan with company match
• 24 hours of paid community service a year
• Up to 4 weeks paid time off a year
• 10 paid floating holidays
• Life insurance,…