> Markdown version of [/jobs/ext/3845530-sr-software-developer](https://www.wearedevelopers.com/jobs/ext/3845530-sr-software-developer). 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). --- # Sr. Software Developer - **Company:** Leidos, Inc. - **Location:** Gaithersburg, MD, United States - **Experience:** Expert - **Salary:** $87,100.0 - $157,450.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Systems Engineering, C++ (Programming Language), Communication Softwares, Computer Engineering, Software Debugging, Linux, Middleware, Perl (Programming Language), Firmware, Python (Programming Language), Korn Shell, Machine Learning, NetApp Applications, Ansible, Software Engineering, TCP/IP, Unix Commands, Multithreading, Scripting, Real Time Systems, System Availability, Information Technology, Stream Control Transmission Protocol - **Published:** October 20, 2026 - **Apply:** https://www.careercircle.com/jobs/all/all/usa/all/all/ce92bf8f-5fe9-4e9b-82a9-1875c0e382a9 ## About the Role Linux TCP/IP Ansible Teamwork Firmware Equities Debugging Scripting Automation Middleware Market Data Communication Unix Commands Air Navigation Decision Making Control Systems Ancient History Computer Science Machine Learning Air Traffic Flow Operating Systems Firmware Security NetApp Applications Air Traffic Control Scripting Languages Software Engineering Software Development Computer Engineering Willingness To Learn Communication Software Artificial Intelligence C++ (Programming Language) Perl (Programming Language) Python (Programming Language) Federal Aviation Administration Stream Control Transmission Protocols At least 8 years, Computer Science or Computer Engineering Degree Demonstrated Software Development Skills/Capabilities Excellent Verbal and Communication Skills Flexibility in working across multiple SW languages Demonstrated ability to debug and solve problems A Strong Desire to Learn & Improve your Technical Capabilities 4-8 Years work experience in a Computer Science related position (outside academic experience) Preferred Qualifications Work Experience in a Technical organization performing Software Engineering Tasks. Previous Software Experience working Air Traffic Control Programs Leadership Skills & Experience If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares. ## Description Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team working on the Federal Aviation Administration's En-Route Automation Modernization ERAM) system, which is the heart of the Next Generation Air Traffic Control System. ERAM is vital to air navigation, providing the backbone foundational platform for all ATC Systems. Developers on ERAM support new system capabilities/enhancements requested by the FAA and system upgrades based on Tech Refresh initiatives. ERAM also enables increased air traffic flow as the need for additional capabilities evolve. Leidos is looking for developers for the ERAM middleware layer which we refer to as FlightDeck". Flight Deck (FDK) functions, capabilities include: * Real-Time Programming on High Availability Systems * Multi-threaded programming * Low Level Operating Systems (Linux) - Customization, RPMs, Firmware, Unix Command Line * SW/HW Integration, NetApp, Hardware, Ansible Playbooks, automation (scripting languages) * Low level communication software (TCP-IP, UDP, SCTP) * Support of Common Services utilized by ERAM Application teams * System Maintenance Concepts Primary Responsibilities * Modernizing the AT control system by improving the availability and performance of the ERAM system. * Supporting ERAM as it continues to migrate upgrade hardware, software, OS levels, firmware, security, and CAS. Detailed knowledge of Linux OS and OS concepts desirable. * Optimizing the experience for the flying public, Air Traffic Control, and the airline industry by improving the collaboration and decision-making capabilities of flight controllers * Develop Maintain FAA air traffic control software (primarily Ada95/C++) on a UNIX/Linux platform. Leverage (KSH/PERL/PYTHON) for automation capabilities. * Performing software development as needed for the ERAM system * Coordinate Solutions with Systems Engineering * Coordinate the development of new capabilities and upgrade to common services provided the applications via the FlightDeck API. * Leveraging AI/ML concepts to improve SW processes and capabilities