Software Engineer
Leidos
About the role
Leidos has an exciting opening for you, as our next TS/SCI cleared Software Engineer supporting a long-term DIA-NDOC DOMEX Technology Platform (DTP) contract. You will work closely with Systems Engineers, Software Engineers, Architects, and Operations Engineering/Management on a broad scope of activities extending across the development of systems, including middle-tier and backend engineering tasks.
As a Software Engineer you will lead an application team responsible for maintaining the continuous flow of new software enhancements and deployments, while you manage risks, escalate impediments, and help to drive continuous process improvement.
While most work is conducted on-site at our client location in Bethesda, MD, we offer a flexible schedule and, occasionally, some tasks may be performed remotely.
You will work closely with the team on the following key tasks:
Develop, test, debug, and maintain Python-based microservices in accordance with established requirements and design specifications.
Develop and maintain integrations with Elasticsearch to support real-time and batch data indexing and querying.
Write and execute unit and integration tests to ensure software quality, reliability, and performance.
Participate in technical design discussions, code reviews, and software development planning activities.
Identify, troubleshoot, and resolve software defects and operational issues using logging and observability tools.
To be successful in this role you need the following (required qualifications):
BS in Engineering, Computer Science, Systems Engineering, or related field and 4 or more years of prior relevant experience or Masters with 2 or more years of prior relevant experience.
To be considered, must have an active Top Secret with SCI eligibility and ability to obtain and maintain a TS/SCI with Polygraph.
Experience developing software applications using Python
Experience with containerization technologies
Experience developing and troubleshooting software in a Linux environment
Experience using Git and collaborative software development workflows
Strong verbal and written communication skills
Experience working in an Agile software development environment
Ability to work independently on assigned development tasks while collaborating effectively with a cross-functional team
You will wow us even more if you have some of these skills:
Familiarity with DGX systems
Elasticsearch certifications or other relevant technology stack certifications
Experience supporting production or enterprise-scale software systems
Familiarity with or experience developing applications that leverage Large Language Models (LLMs) or Agentic AI
DTP
#NMECDTP-Leidos
#ASBA
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:
October 16, 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 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.
Responsibilities
- Develop, test, debug, and maintain Python-based microservices.
- Build and maintain Elasticsearch integrations for real-time and batch data indexing and querying.
- Write and execute unit and integration tests.
- Participate in technical design discussions, code reviews, and development planning.
- Troubleshoot and resolve software defects and operational issues.
- Lead an application team, manage risks, and support continuous process improvement.
Qualifications
- Bachelor’s degree in engineering, computer science, systems engineering, or a related field with 4+ years of relevant experience, or a master’s degree with 2+ years.
- Active Top Secret clearance with SCI eligibility and ability to obtain and maintain TS/SCI with Polygraph.
- Experience developing software applications using Python.
- Experience with containerization technologies and software development in Linux.
- Experience with Git, collaborative workflows, and Agile software development.
- Strong verbal and written communication skills and ability to work independently and collaboratively.
- Preferred: familiarity with DGX systems, Elasticsearch certifications, enterprise-scale software, or LLM and Agentic AI applications.
Skills mentioned
About Leidos
Leidos is an industry and technology leader serving government & 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. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
H-1B sponsorship history
Historical employer filing data was found for Leidos. The employer record includes 364 historical certified applications. This is employer-level history, not a guarantee that this role currently offers sponsorship.