> Markdown version of [/jobs/ext/3624058-principal-cyber-software-engineer](https://www.wearedevelopers.com/jobs/ext/3624058-principal-cyber-software-engineer). 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). --- # Principal Cyber Software Engineer - **Company:** NIGHTWING LLC - **Location:** Sterling, VA, United States - **Experience:** Expert - **Salary:** $99,000.0 - $206,000.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), JavaScript (Programming Language), Agile Methodology, Amazon Web Services, Application Performance Management, Automation of Tests, Unit Testing, Microsoft Azure, Unix, Cloud Computing, Software Quality, Cyber Security, Databases, Data Mining, Linux, DevOps, Github, Hibernate (Java), Spring Framework, Junit, Python (Programming Language), MySQL, Node.Js, Oracle (Applications), Scrum Methodology, Secure Coding, Security Software, Session Management, Smoke Testing, Software Deployment, Software Engineering, Software Requirements Analysis, SQL Databases, Web Applications, Cloudbees, Data Logging, Google Cloud, ReactJS, Jupyter, Backend, Gitlab, Git, SC Clearance, Pytest, Information Technology, Front End Software Development, Software Version Control, Jenkins, Web Api - **Published:** October 8, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9222987/principal-cyber-software-engineer ## About the Role * U.S. Citizenship * Must be able to obtain a Secret clearance within 1 year * Must be able to obtain DHS Suitability * 8+ years of directly relevant software development experience required. * Proficiency in programming languages such as Python, Java, and NodeJS. * Strong knowledge of front-end and back-end frameworks. * Familiarity with CI/CD pipelines and version control systems. * Knowledge of cloud platforms (e.g., AWS, Azure, Google Cloud) is a plus. * Demonstrated experience and/or familiarity with one of more of the following: SQL, Oracle, MySQL, JBDC, etc. * Demonstrated experience and/or familiarity with one of more of the following: Pytest, Jupyter, Java Spring, JUnit, Hibernate, JavaScript, ReactJs, etc. * Experience leading multiple software development teams. * Experience developing system performance, availability, scalability, manageability, and security requirements for mid- to large-scale programs. * Experience with cloud computing, multimedia storage, knowledge databases and data-mining analytics. * Agile development methodology experience required. * Experience with Linux and/or Unix. * Experience with Jenkins and/or CloudBees. Desired Skills: * Excellent problem-solving and communication skills. * Strong teamwork and collaboration abilities. * Ability to adapt to a fast-paced, evolving technology environment. * Attention to detail and commitment to delivering high-quality solutions. Desired Certifications: * DoDM 8140.03 DCWF Information Systems Security Developer (631), CSSLP, CISSP * Software development methodology certification (e.g. SCRUM Master) highly desired. Required Education: * Bachelor's degree in Software Engineering, Computer Science or a related discipline is required. ## Description * Full Stack Development o Develop, maintain, and enhance front-end and back-end components of web applications. o Automated testing and smoke testing familiarity and implementation experience. o Perform unit and integration testing to ensure software quality. o Optimize application for speed and scalability. o Collaborate with cross-functional teams to gather and refine software requirements. o Write clean, maintainable, and efficient code. o Troubleshoot and resolve software defects and issues. o Handle authentication, authorization, and session management. o Integrate with third-party services (e.g., payment processors, external APIs). * DevOps and Deployment o Set up and manage CI/CD pipelines. o Deploy applications to cloud platforms (e.g., AWS, Azure, GCP). o Monitor application performance and reliability. o Handle version control using Git and platforms like GitHub/GitLab. * Collaboration and Documentation o Collaborate with DevOps, infrastructure, and development teams to ensure seamless integration. o Document code and infrastructure changes, processes, and best practices. o Participate in knowledge sharing and mentorship of team members. o Stay up-to-date with industry trends and emerging technologies. * Cybersecurity - Secure Coding Practices o Create secure code according to industry best practices. o Use strong encryption algorithms for data in motion and data at rest. o Manage and handle credentials and secrets in a secure, authorized manner. o Use correct error handling and logging within developed code.