Xml Developer Jobs in Frederick, MD (NOW HIRING)

Description

Join a team that is helping modernize the future of air traffic management while supporting one of the nation's most critical transportation missions. Leidos is seeking a Systems Integration Engineer to join the Terminal Flight Data Manager (TFDM) program supporting the Federal Aviation Administration (FAA). In this role, you will be responsible for integrating, validating, and deploying mission-critical capabilities that improve the safety, efficiency, and reliability of the National Airspace System (NAS).

TFDM is the FAA's NextGen surface management solution that enhances airport surface and terminal airspace operations through an integrated traffic control and management system. As part of this team, you'll collaborate with software engineers, system engineers, and FAA stakeholders to deliver capabilities that directly support air traffic controllers and airport operations across the country.

This position offers more than a traditional integration and test role. You'll have the opportunity to work directly with FAA customers during system deployments, formal test events, and customer acceptance activities at airports nationwide. You'll see your work transition from the lab into live operational environments while helping deliver technology that supports one of the world's most complex aviation systems.

Location: This position is based in our Gaithersburg, MD office with a hybrid schedule of three days per week in the office and two days working remotely.

Travel: Up to 25% travel is required and is a key part of this role. You'll travel to FAA airport locations throughout the United States to support system integration, customer demonstrations, formal testing, and operational deployments. Working alongside FAA personnel in live airport environments provides a unique opportunity to gain firsthand operational experience, build strong customer relationships, and see the direct impact of your work as TFDM is deployed across the National Airspace System. Travel is typically one to two weeks per trip.

Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information.

Primary Responsibilities

As a member of a highly collaborative engineering team, you will:

• Integrate, configure, and validate TFDM capabilities within both physical and virtual integration laboratories.
• Execute system integration, verification, and validation activities to ensure the system is properly configured and operating within the National Airspace System.
• Support formal customer demonstrations, verification events, and customer acceptance testing with FAA stakeholders.
• Collaborate with software, systems engineering, networking, and infrastructure teams to investigate, troubleshoot, and resolve complex system-level issues.
• Analyze integration and test results, identify root causes, and provide detailed technical documentation supporting issue resolution.
• Support deployment and integration activities at FAA operational facilities, including Air Traffic Control Towers (ATCTs).
• Execute system interface testing and validate communications across internal and external NAS interfaces.
• Coordinate integration activities with FAA personnel and cross-functional Leidos engineering teams.
• Develop automated tools, scripts, and AI-assisted solutions that improve testing efficiency, reduce manual effort, and streamline repetitive tasks.
• Support remote deployment activities by coordinating with infrastructure, networking, and installation teams.
• Learn and maintain a deep understanding of TFDM architecture, system functionality, interfaces, and operational workflows.
• Partner with Systems Engineering to develop integration and test strategies for new capabilities and system enhancements.
• Integrate services with databases, messaging systems, and external APIs.
• Troubleshoot XML messaging, JMS queue configurations, networking issues, IP configurations, and interface connectivity.
• Demonstrate system capabilities during formal "run-for-record" events supporting customer acceptance and release readiness.
• Provide technical leadership and mentoring to junior integration engineers while helping ensure program milestones are successfully achieved.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, Information Systems, or a related technical discipline with 6+ years of relevant experience, or 4+ years with a related Master's degree. Equivalent experience may be considered.
• Ability to obtain an FAA SF-85P Public Trust.
• Experience integrating and testing large-scale, distributed software systems.
• Strong Linux/UNIX administration and troubleshooting experience.
• Experience with Python, Bash, or Shell scripting for automation and data analysis.
• Experience troubleshooting network configurations, connectivity, and distributed system interfaces.
• Experience working with XML messaging, APIs, databases, or messaging middleware.
• Experience developing automation solutions that improve engineering efficiency.
• Exposure to AI-assisted engineering tools (such as Claude Code or similar technologies) is highly desirable.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Strong written and verbal communication skills.
• Ability to collaborate effectively with engineers, program leadership, and FAA customers.
• Willingness to travel up to 50% to support customer deployments and operational testing.

Preferred Qualifications

• Experience integrating mission-critical or highly available systems.
• FAA or Air Traffic Management domain experience.
• Knowledge of National Airspace System (NAS) interfaces including FDIO, STARS, TBFM, and ASDE-X.
• Experience leading formal integration, verification, or customer acceptance events.
• Familiarity with Agile development methodologies including Scrum or Kanban.
• Understanding of systems engineering processes including requirements management, interface definition, and verification.
• Experience working with distributed systems, enterprise messaging, and service-oriented architectures.

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.

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.