Description
Software Engineer
Are you fully cleared and looking for an opportunity to make an impact?
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
If this sounds like the kind of environment where you can thrive, keep reading!
Leidos National Security Sector is seeking a fully cleared Software Engineer to join an existing team supporting, operating, and maintaining an AWS hosted software application and underlying databases.
In this role you will work within a team to:
Conduct application bug fixes and evolving/enhancing the application commensurate with user feedback, team-provided recommendations, and the client's strategic growth.
Ensuring compliance with all IT/security/other applicable policies, advising the client on risk mitigation to ensure future policy compliance, and adherence to a contractor-recommended and client-approved Configuration Management processes.
Provide operations and maintenance support for client system, to include underlying databases and cloud infrastructure.
Resolve bugs, implement enhancements to improve the user interface/experience, and evolve the system in accordance with the client's mission and new data sources.
Develop and implement both an immediate "hotfix" and a longer-term release cycle that allows for both critical and incremental changes.
Perform continuous monitoring (during regular business hours) of system functionality and data ingestion.
Maintain an Interface Control Document describing the standards and allowable schema(s) for new data sets to be ingested into the system.
Ensure the system retains accreditation and is compliant with client security directives and regulations and consistent with ICD 503, FISMA, and all other legal and technical compliance activities.
Maintain compliance with all monitoring systems required for enterprise applications, including CloudWatch, Splunk and others as required by the client.
Maintain Non-Person Entity PKI certs for the client, and update certs as required.
Identify, evaluate, propose, and implement, with client approval, interfaces where the system may enrich other current and future client constructs (databases, applications, networks).
Propose and implement, with client approval, an Engineering Change Management process that enables evaluating, prioritizing, resourcing, deconflicting, testing, and implementing changes to the architecture or processes.
Propose and implement, with client approval, a Knowledge Management process and environment which documents and archives architectures, processes, schedules, or other artifacts as required, using MS Office file formats.
Propose and implement, with client approval, a Configuration Management process which develops, publishes, and updates architecture baselines and changes to the system, formally delivered in MS Office file formats.
Propose and implement, with client approval, a feedback process which surveys the user community on recommendations on system enhancements or defect resolution.
Maintain user guides and training materials for the system, and provide both formal and ad hoc informal training sessions.
Propose and implement, with client approval, an issue and risk management workflow that identifies programmatic or technical matters of concern.
Required Security Clearance:
Active TS/SCI with Polygraph is required.
Required Experience, Skills, and Education:
Active TS/SCI with Polygraph security clearance.
Bachelor's degree and 4+ years of experience.
Demonstrated experience in software design and development using the full suite of Enterprise SecDevOps tools to support Continuous Integration / Continuous Development services and microservices on a cloud infrastructure.
Demonstrated experience in full stack web application software development using Vue (Javascript), FastAPI (Python), and PostgreSQL (managed Amazon Web Service (AWS) Relational Database Service (RDS).
Demonstrated experience in cloud infrastructure-as-code networking and service administration, to include deploying, operating, and maintaining web services on a cloud infrastructure.
Demonstrated experience in implementing could infrastructure resiliency and on-demand scaling practices.
Demonstrated experience in user interface engineering, to include creating, promoting, and supporting standards for usability excellence.
Demonstrated experience in architecting, designing, and developing large-scale data solutions to provide efficient searching, analytical, and reporting capabilities.
Demonstrated experience in entity resolution on large and continuously growing data sets.
Demonstrated experience facilitating Assessment and Authorization processing.
Demonstrated experience managing data set permissions.
Demonstrated experience in IT security compliance for systems, to include auditing and monitoring.
Demonstrated experience developing and implementing configuration management plans and processes for software applications and underlying databases.
Demonstrated experience working with operating systems including FidOS and CLSE.
Demonstrated experience developing containerized (Podman) applications.
Desired Experience, Skills, and Education:
Demonstrated experience in operating and maintaining systems on JWICS (Joint Worldwide Intelligence Communications System).
Demonstrated experience in ingesting data records into software applications.
Demonstrated experience in handling exceptional records, as defined by client regulations, and proper safeguarding of US person information.
Demonstrated experience in designing and developing content on digital platforms such as Confluence that provide corporate messages, training, troubleshooting tips, and other content to the user base.
Demonstrated experience in designing and developing Artificial Intelligence and Machine Learning algorithms at scale, and other deep learning systems.
Demonstrated experience using Sigma and Analytic Workbench platforms to perform quality control and quality assurance checks on client application performance against raw data holdings.
Demonstrated experience developing and deploying applications via Kubernetes or similar container cluster orchestration management systems such as Amazon Web Services (AWS) Elastic Kubernetes Service (EKS).
Demonstrated experience developing applications using client developed CookieCutter templates.
Demonstrated experience using client tools to facilitate Assessment and Authorization processing.
Demonstrated experience using client tools to manage data set permissions.
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(Desired) Demonstrated experience working with client developed development and production operating systems including FidOS and CLSE.
- The posted salary range is based on Leidos job code architecture and does not reflect individual program/contract budgets. The program may have the ability to offer a higher salary for fully cleared candidates who meet the position's posted requirements. *
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:
March 11, 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 $87,100.00 - $157,450.00
The Leidos pay range for this job level is a general guideline onlyand 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 (https://reportfraud.ftc.gov/#/) .
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.
REQNUMBER: R-00178022
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.
