Software Engineer
Leidos Inc, Reston, VA, United States
Description
Software Engineer (R&D / AI & Data Platforms)
Leidos - Analysis Solutions Business Area
Build the future of data, AI, and mission-critical software.
Leidos is seeking a talented Software Engineer to help lead the development of next-generation software capabilities within our dynamic research and development environment. In this role, you'll design and deliver innovative Knowledge Management solutions that power data-driven decision-making across critical national security missions.
You'll work at the intersection of
data engineering, AI, and full-stack development , building scalable platforms that transform complex data into actionable insights.
What You'll Do
Design and develop
Knowledge Management systems , including data pipelines, ontologies, and AI-enabled platforms
Build
modern web applications
(front-end and back-end) to support search, discovery, and analysis
Develop and maintain
ETL pipelines and data lake architectures
Integrate
AI/ML capabilities , including Generative AI and LLM APIs
Collaborate across teams to gather requirements and deliver scalable, mission-focused solutions
Support
data analysis, modeling, simulation, and visualization
efforts
Ensure software quality through testing, validation, and performance optimization
Deploy solutions in
secure, cloud-based, and containerized environments
What You Bring
Experience in
software development and system design , with a strong foundation in computer science principles
Proficiency in one or more programming languages such as
Python, Java, C++, R, or JavaScript/TypeScript
Experience building applications using
React or Angular , and back-end frameworks such as
FastAPI
Familiarity with
SQL and NoSQL databases
Working knowledge of
cloud platforms
(preferably AWS) and containerization technologies (e.g., Docker)
Experience with
data pipelines, ETL processes, and data management systems
Exposure to
Generative AI / LLM APIs
(e.g., OpenAI, Anthropic, Bedrock)
Understanding of
software testing frameworks
(e.g., pytest, Playwright, Jest)
Ability to work in
Linux/Unix and Windows environments
Strong communication skills and experience collaborating with technical and non-technical stakeholders
Basic Qualifications
Bachelor's degree in computer science, Information Systems, Systems Engineering, or a related field
Minimum of
1+ years of relevant experience
Interest in supporting
Intelligence Community and DoD missions
U.S. Citizenship required
Preferred Qualifications
Advanced degree (MS) in a relevant technical field
Experience with
AI/ML, LLMs, and AWS Bedrock
Familiarity with
DTRA R&D or Combatant Command environments
Experience integrating
COTS/GOTS tools , including 3D modeling, simulation, or visualization platforms
Clearance Requirements
Must be eligible to obtain a
TS/SCI with Polygraph
Active
TS/SCI
or Top Secret clearance with current SSBI strongly preferred
What Sets You Apart
Detail-oriented with strong problem-solving skills
Comfortable working in
fast-paced, ambiguous environments
Able to independently research and implement innovative solutions
Effective collaborator who thrives both independently and on teams
Strong technical writing and presentation skills
Why Leidos?
At Leidos, your work directly supports critical national security missions. You'll join a collaborative, forward-thinking team where innovation is encouraged and your contributions make a real impact.
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:
April 23, 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 $57,850.00 - $104,575.00
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 .
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.
Software Engineer (R&D / AI & Data Platforms)
Leidos - Analysis Solutions Business Area
Build the future of data, AI, and mission-critical software.
Leidos is seeking a talented Software Engineer to help lead the development of next-generation software capabilities within our dynamic research and development environment. In this role, you'll design and deliver innovative Knowledge Management solutions that power data-driven decision-making across critical national security missions.
You'll work at the intersection of
data engineering, AI, and full-stack development , building scalable platforms that transform complex data into actionable insights.
What You'll Do
Design and develop
Knowledge Management systems , including data pipelines, ontologies, and AI-enabled platforms
Build
modern web applications
(front-end and back-end) to support search, discovery, and analysis
Develop and maintain
ETL pipelines and data lake architectures
Integrate
AI/ML capabilities , including Generative AI and LLM APIs
Collaborate across teams to gather requirements and deliver scalable, mission-focused solutions
Support
data analysis, modeling, simulation, and visualization
efforts
Ensure software quality through testing, validation, and performance optimization
Deploy solutions in
secure, cloud-based, and containerized environments
What You Bring
Experience in
software development and system design , with a strong foundation in computer science principles
Proficiency in one or more programming languages such as
Python, Java, C++, R, or JavaScript/TypeScript
Experience building applications using
React or Angular , and back-end frameworks such as
FastAPI
Familiarity with
SQL and NoSQL databases
Working knowledge of
cloud platforms
(preferably AWS) and containerization technologies (e.g., Docker)
Experience with
data pipelines, ETL processes, and data management systems
Exposure to
Generative AI / LLM APIs
(e.g., OpenAI, Anthropic, Bedrock)
Understanding of
software testing frameworks
(e.g., pytest, Playwright, Jest)
Ability to work in
Linux/Unix and Windows environments
Strong communication skills and experience collaborating with technical and non-technical stakeholders
Basic Qualifications
Bachelor's degree in computer science, Information Systems, Systems Engineering, or a related field
Minimum of
1+ years of relevant experience
Interest in supporting
Intelligence Community and DoD missions
U.S. Citizenship required
Preferred Qualifications
Advanced degree (MS) in a relevant technical field
Experience with
AI/ML, LLMs, and AWS Bedrock
Familiarity with
DTRA R&D or Combatant Command environments
Experience integrating
COTS/GOTS tools , including 3D modeling, simulation, or visualization platforms
Clearance Requirements
Must be eligible to obtain a
TS/SCI with Polygraph
Active
TS/SCI
or Top Secret clearance with current SSBI strongly preferred
What Sets You Apart
Detail-oriented with strong problem-solving skills
Comfortable working in
fast-paced, ambiguous environments
Able to independently research and implement innovative solutions
Effective collaborator who thrives both independently and on teams
Strong technical writing and presentation skills
Why Leidos?
At Leidos, your work directly supports critical national security missions. You'll join a collaborative, forward-thinking team where innovation is encouraged and your contributions make a real impact.
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:
April 23, 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 $57,850.00 - $104,575.00
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 .
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.