Urgent! Senior Python Developer (SWE-3) Job Opening In Fort Meade – Now Hiring Leidos
**Description**
**Leidos** has a new and exciting opportunity for a **Senior Python Developer** 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!**
**Job Summary:**
Our LOE program provides our customer's Operations organization with the best possible solutions for their mission needs.
We achieve this through rapid prototyping, new development, and advanced technology research.
From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions.
With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact.
Clickhere (https://careers.leidos.com/search/jobs?q=pdsii&ns_job_category=pdsii-jobs) to learn more about how this program “Delivers Mission Success!”
Seeking a motivated Senior Python Developer with the right knowledge, skills, and abilities to support a new cybersecurity initiative.
You will work closely with a small team and mission stakeholders to capture requirements, create parsers for network protocols, develop fingerprints and signatures to identify suspicious and anomalous network activity, and deploy solutions to customer supported tools to automate and enable data and metadata analysis.
**Job Responsibilities/Qualifications:**
+ **Mission Focus** : Collaborate closely with customers to overlay network datasets through an existing architecture with the ABYSS product.
Integrate parsers and signatures into ABYSS and develop tradecraft for front end sensors.
+ **Technical Proficiency** : Develop parsing and processing of network protocols to populate customer data repositories.
Prototype and develop analytic workflows to automate tasks such as profiling network traffic/activity and detecting/alerting based on network changes.
+ **Qualifications** : Bachelor’s degree in computer science, plus 8-years of relevant experience or equivalent.
Proficiency with Python, C++, and Spark.
Experience with Jupyter Notebooks, JIRA, Confluence, and Git/Gitlab.
Understanding of ASDF and TCLD.
Knowledge of XKEYSCORE/ABYSS fingerprints.
+ **Security Clearance** : Active TS/SCI with Polygraph required to be considered for this role.
+ **Desirable Skills** : General understanding of SNORT signatures.
Familiarity with SCADA/industrial systems and related protocols.
**At Leidos, the opportunities are boundless.
We challenge our staff with interesting assignments that allow them to thrive professionally and personally.
For us, helping you grow your career is good business.
We look forward to learning more about you – apply today!**
**Careers.leidos.com**
**conmd**
Come break things (in a good way).
Then build them smarter.
We're the tech company everyone calls when things get weird.
We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”
**Original Posting:**
July 28, 2025
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 $104,650.00 - $189,175.00
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.
REQNUMBER: R-00163453
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.
✨ Smart • Intelligent • Private • Secure
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Unlock Your Senior Python Potential: Insight & Career Growth Guide
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Great news! Leidos is currently hiring and seeking a Senior Python Developer (SWE 3) to join their team. Feel free to download the job details.
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