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# Senior Principal Software Engineer (Onsite)

- **Company:** RTX
- **Location:** Scaggsville, MD, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Agile Methodology, Software Applications, C++ (Programming Language), Cascading Style Sheets (CSS), Cyber Security, Data Structures, Software Debugging, Linux, Distributed Systems, Information Retrieval, PostgreSQL, MATLAB, Object-Oriented Software Development, OpenShift, RabbitMQ, Redis, Software Engineering, Software Requirements Analysis, Software Systems, TypeScript, AngularJS, Kubernetes, Apache Kafka, Graphql, Restful APIs, Docker, Vulnerability Analysis, Programming Languages
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25197_1e9bea3ee9b3442cd5013506398a3158

## About the Role

* Drive the design, architecture, and development of critical capabilities in an active Agile environment.
 * Demonstrated leadership skills with ability to coordinate the activities of multiple engineers working on a program, ensuring successful technical execution and delivery of solutions for the customer.
 * Proactive leadership skills - proven ability to recognize issues early and to lead and motivate teams by making smaller, decisive corrections to avoid larger problems.
 * Adept at communicating (verbal and written) with all levels within and outside the company, ability to prepare and deliver presentations/summaries which appropriately address the intended audience.
 * Work in a highly collaborate team environment to design, architect and innovate software solutions., * Relevant work experience in software development using object oriented programming languages such as Java or C++.
 * Relevant work experience with full life cycle development including software requirements, design, development, debug and test.
 * Strong computer science fundamentals: such as data structures, algorithms, distributed systems, information retrieval.
 * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience.
 * The ability to obtain and maintain a U.S. government issued security clearance is required.
 * U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance., * Direct hands on individual experience with GraphQL, REST, Kafka, RabbitMQ, Redis, Postgresql, Docker, Kubernetes, Angular, Typescript, HTML/CSS, among many other programming languages and related technologies. Especially in driving the design and architecture of software applications and systems.
 * Demonstrated skills with C++ related Technologies: Boost/STL/Standard C++ Library/etc.
 * Experience developing, assessing and validating complex mathematical solutions such as track filters, track correlation algorithms, and weapon engagement algorithms, for sensors and/or C2 programs.
 * Demonstrated experience developing software in a Linux environment.
 * Experience with Container Orchestration implementation such as Docker, Kubernetes, OpenShift.
 * Experience with managing cyber security processes including vulnerability assessments.
 * Experience developing system models, simulations, and complex algorithmic solutions, in addition to utilizing tools such as Matlab.