> Markdown version of [/jobs/ext/1197108-software-engineer-senior-security-clearance-needed](https://www.wearedevelopers.com/jobs/ext/1197108-software-engineer-senior-security-clearance-needed). 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). --- # Software Engineer Senior (Security Clearance Needed) - **Company:** GCI, Inc. - **Location:** Chantilly, VA, United States - **Experience:** Expert - **Salary:** $107,744.0 - $179,941.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Microsoft Windows, Application Programming Interfaces (APIs), JIRA, Build Automation, Automation of Tests, Configuration Management, Computer Engineering, Continuous Integration, Linux, Field-Programmable Gate Array (FPGA), Apache Hadoop, MapReduce, Hardware Design, Integrated Development Environments, Python (Programming Language), Apache Maven, Redmine, Software Engineering, Software Systems, Data Processing, Cloud Platform System, Apache Spark, Computer Equipment, Information Technology, Wireless Technologies, Api Design, Restful APIs, Jenkins, Programming Languages - **Published:** July 7, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9014363/software-engineer-senior-security-clearance-needed ## About the Role The Software Engineer will design and develop complex software systems and make significant enhancements to existing software. The ideal candidate is a hands-on developer with significant experience in developing scalable platforms, with experience in leading software development activities, systems that process data and messaging, hardware implementation, creating documentation and guides, and organizing and managing operations and maintenance actions. The candidate must have strong, firsthand technical expertise in a variety of system technologies and the proven ability to fashion robust scalable solutions that can manage critical communication systems. The candidate is a leader and provides supervision to more junior employees., * Hands-on experience with modern programming languages including Python or JavaScript. * Hands-on experience working with JIRA, Redmine, or other development environment task manager/trackers. * Experience building and implementing systems that support both custom and off-the-shelf hardware features. * Hands-on experience and is familiar with one or more of the following software/tools: * Experience with building APIs and services using REST, Hadoop, Map Reduce, Spark, etc. * Experience with build automation technologies like Maven, Jenkins, etc. * Experience with Linux (preferred) or Windows operating systems. EDUCATION AND EXPERIENCE * Bachelor's Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience. * 5 to 10 years of related software engineering experience. DESIRED QUALIFICATIONS * Experience with the design and development of modern, web-based use interface and applications development and a related understanding of key technologies such as APIs that interface with hardware devices. * Understanding or exposure to FPGA programming. * Knowledge of wireless technology, digital/analog communications, or RF. * Experience with Test Automation and Continuous Integration. Travel GCI's systems are distributed regionally throughout the contagious United States (CONUS), and require quarterly updates to software systems, and occasionally hardware, as well. The successful candidate is able to travel at least four times a year to CONUS sites for two (2) to four (4) days to perform the scheduled maintenance. *A candidate must be a US Citizen and requires the ability to achieve and maintain an active/current TS/SCI with Polygraph clearance. GCI will work with the candidate to transfer their clearance, or sponsor them for a Secret, followed by a Top Secret clearance., Preferred Bachelor of Science or better in Computer Science or related field. Experience Required 5-10 years: Demonstrated related software engineering experience. 5 years: Work related experience. ## Description At GCI, we solve hard problems. As a Senior Software Engineer, a typical day will include the following duties: * Design and develop a processing platform using various configuration management technologies. * Provide ongoing maintenance, support, and enhancements in existing systems and platforms. * Troubleshoots complex problems and provides customer support for software systems and application issues. * Provide recommendations for continuous improvement. * Work alongside other engineers on the team to sustain and advance our organization's capabilities. ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [You’re a great coder? 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