Sr. Quantum Information Scientist

Leidos has a new and exciting opportunity for a Sr. Quantum Information Scientist in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! The Senior Scientist will assist in quantum information science (QIS)-based research being performed at the FISTA, in Lawton, Oklahoma. The Senior Scientist will be tasked with supervising a technical team located at a Leidos research facility. The technical team will be developing a variety of demonstration systems for the customer. In addition to team supervision, the Scientist will also be tasked with participating in R&D along with various program development tasks. ***This position will be based in Huntsville, AL at the start of the position and the individual will be required to relocate to Lawton, OK within 8-12 month timeframe*** Responsibilities will include supervising and participation in the building and testing of quantum-based communications and sensing systems along with managing collaborations with sub-contractor partners at the University of Oklahoma. Expertise in optical systems is not required but basic familiarity with optics is preferred. The position may require short periods of travel within the US., primarily to other Leidos facilities in DC and Huntsville, AL. Potential employee should be comfortable communicating technical work, both orally and written to subject matter experts and non-technical audiences. Familiarity with proposal processes and white paper writing is a plus. Presenting complex material to non-technical governmental and military audiences. Provide regular updates to the group lead in Huntsville, AL. Required Qualifications: Must hold a PhD in physics, optics, quantum information science (QIS), or some related field and 4+ years of related work experience. Candidate must be proficient with experimental quantum mechanical systems used in sensing or communications applications. Must be able to obtain a TS/SCI security clearance. Applicant must be able to work in Huntsville, AL for 8-12 month timeframe and then relocate to Lawton, OK. Must be a US Citizen. Preferred Qualifications: Expertise in an applicable field of quantum physics/QIS, either theoretical or experimental. Familiarity with Python, Matlab, Mathematica, LabVIEW, C#, or any optical modeling program. Experience in the theory and design of experimental quantum systems for sensing/communications applications. Experience in setting up lab equipment for optical and quantum experiments. 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. Original Posting: May 28, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 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. 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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit 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 here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to View email address on click.appcast.io. Commitment and Diversity 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.