Top 78 principal software engineer Jobs in timonium md

Principal Software Engineer (SWE-4)
Leidos —Annapolis Junction, MD
- $131,300 - $237,350 a year
- Full-time
- 11+ years
- Java
- Bachelor's degree
- Paid holidays
- Paid time off
8d
Sr. Principal Cyber Software Engineer
Northrop Grumman —Jessup, MD
- $149,300 - $234,600 a year
- Overtime
- Computer science
- Computer Science
- Windows
- Paid holidays
- Disability insurance
4d
Principal Software Engineer
INSPYR Solutions —Milford Mill, MD
- $70 - $78 an hour
- Contract
- 7 years
- Azure
- Doctoral degree
- Health insurance
- 401(k)
Quick Apply
2d
Principal Cyber Software Engineer
Northrop Grumman —Jessup, MD
- $119,600 - $187,900 a year
- Overtime
- Computer Science
- Windows
- Java
- Paid holidays
- Disability insurance
4d
Principal Engineer
2K —Sparks Glencoe, MD
- $147,100 - $195,000 a year
- Full-time
- Remote
- 3 years
- Mentoring
- Senior level
- Commuter assistance
- Paid parental leave
Principal Software Engineer
Centurion Consulting Group —Woodlawn, MD
- $135,000 - $185,000 a year
- Full-time
- Computer science
- Azure
- Doctoral degree
Cyber Capabilities Developer, Principal (TS/SCI w/ Poly)
Parsons —Annapolis Junction, MD
- $148,300 - $266,900 a year
- Computer science
- Computer Science
- Research
- Wellness program
- Paid holidays
Principal Frontend Engineer (US)
VulnCheck —Columbia, MD
- Full-time
- Remote
- 5 years
- Continuous improvement
- Mentoring
- Paid parental leave
- Health insurance
Quick Apply
Principal Software Engineer
Amatriot Group, LLC —Woodlawn, MD
- $145,000 - $175,000 a year
- Full-time
- Senior level
- 10 years
Quick Apply
Principal Software Engineer
CyberIP Services —Annapolis Junction, MD
- Email
- Analysis skills
- Senior level
Principal Geospatial Software Engineer (TS/SCI with Polygraph required)
Red Alpha —Columbia, MD
- $190,000 - $235,000 a year
- Full-time
- Management
- Computer Science
- 11+ years
- Paid holidays
- Health insurance
Principal DevOps Engineer
GliaCell Technologies —Columbia, MD
- $200,000 - $280,000 a year
- Full-time
- Bachelor of Science
- System design
- Bachelor's degree
- Paid jury duty
- Disability insurance
Quick Apply
Principal Software, Data, and AI Engineer
The MITRE Corporation —Aberdeen, MD
- Full-time
- Hybrid work
- 5 years
- System design
- Windows
Principal Software Engineer I
LifeCycle Corporation —Annapolis Junction, MD
- Windows
- Master's degree
- Bachelor's degree
Principal Python Software Engineer (Partial Telework)
GliaCell Technologies —Annapolis Junction, MD
- $200,000 - $280,000 a year
- Full-time
- Remote
- Computer science
- Computer Science
- Bachelor of Science
- Paid jury duty
- Disability insurance
Quick Apply
Principal‑Level Software Engineer (Java, Python)
IDS International —Annapolis Junction, MD
- $155,000 - $175,000 a year
- Full-time
- 11+ years
- Java
- Bachelor's degree
Principal Software Engineer (Partial Telework)
GliaCell Technologies —Annapolis Junction, MD
- $200,000 - $280,000 a year
- Full-time
- Remote
- Computer science
- Computer Science
- Bachelor of Science
- Paid jury duty
- Disability insurance
Quick Apply
Principal Software Engineer – Tactical Power Delivery Systems
Parsons —Aberdeen, MD
- $125,100 - $225,200 a year
- Computer Science
- C++
- Mentoring
- Wellness program
- Paid holidays
8d
Principal CNO Tool Developer (TS/SCI with Polygraph required)
Red Alpha —Annapolis Junction, MD
- $190,000 - $275,000 a year
- Computer Science
- Bachelor's degree
- Software development
- Paid holidays
- Health insurance
Principal Signals Software Engineer
Envision Innovative Solutions —Columbia, MD
- $190,000 - $215,000 a year
- Computer science
- Computer Science
- Software troubleshooting
Quick Apply

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principal software engineer jobs near timonium md

Principal Software Engineer (SWE-4)

Leidos -
Annapolis Junction, MD

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Job Details

Full-time
$131,300 - $237,350 a year
8 days ago

Benefits

Paid holidays
Paid time off
Parental leave
401(k) 6% Match
401(k) matching
Flexible schedule

Qualifications

Java
TS/SCI with Polygraph
Python
Shell Scripting

Full Job Description

Description

Leidos has a new and exciting opportunity for a Principal Software Engineer in our Intelligence Sector's (INTEL) 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. Click here to learn more about how this program “Delivers Mission Success!”

Seeking an experienced and talented software developer to join an existing team that develops and manages software products and tools integral to discovering new mobile data related to the mission. This role includes application development in support of the mission and managing the product's infrastructure and DevOps environment. You will be working in a highly collaborative, integrated environment.

Qualified candidates are eligible for enhanced incentives including up to a $25K cash sign on bonus or a paid time off bonus.

Job Responsibilities/Qualifications:

Mission Focus: Perform security analysis of web services on Android and OSX platforms to develop automation tools to scrape data and interact with public and private APIs.
Technical Proficiency: Strong experience with Java, Python, JavaScript, and shell scripting
Qualifications: Bachelor's degree plus eleven (11) years of relevant development experience or equivalent.
Security Clearance: Candidates must possess an active TS/SCI with Polygraph to be considered for this role.
Desirable Skills: Additional experience with Android development, browser automation with Selenium, reverse engineering; familiarity with AI

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

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 27, 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 $131,300.00 - $237,350.00

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.

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 [email protected].

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.

Apply Now

Refine Your Search

principal software engineer jobs in timonium md

Principal Software Engineer (SWE-4)

Sr. Principal Cyber Software Engineer

Principal Software Engineer

Principal Cyber Software Engineer

Principal Engineer

Principal Software Engineer

Cyber Capabilities Developer, Principal (TS/SCI w/ Poly)

Principal Frontend Engineer (US)

Principal Software Engineer

Principal Software Engineer

Principal Geospatial Software Engineer (TS/SCI with Polygraph required)

Principal DevOps Engineer

Principal Software, Data, and AI Engineer

Principal Software Engineer I

Principal Python Software Engineer (Partial Telework)

Principal‑Level Software Engineer (Java, Python)

Principal Software Engineer (Partial Telework)

Principal Software Engineer – Tactical Power Delivery Systems

Principal CNO Tool Developer (TS/SCI with Polygraph required)

Principal Signals Software Engineer

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