
Software Engineer I - Top Secret
Centreville, VAJob$88–155K/yrSeen todaySeen in employer's feed today
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At a glance
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Requirements
Credentials this posting asks for.
Job overview
Parsons seeks a CNO Software Developer to develop and maintain cyber network operations tools for defense and intelligence customers. The role contributes to software development, troubleshooting, vulnerability research integration, and technical documentation under the guidance of senior engineers. The posting requires an active Top Secret clearance, a related bachelor's degree, and relevant development experience, with a master's degree considered in lieu of the experience requirement.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
In a world of possibilities, pursue one with endless opportunities. Imagine Next!
At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible.
Job Description:
In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Join an amazing collaborative team that analyzes, designs, and develops computer software to support marquee customers in Defense and Intelligence. We are seeking a CNO Software Developer to develop and maintain cyber network operations tools and capabilities that enable critical national security missions.
What You'll Be Doing:
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Contribute code to CNO tool components in C under close guidance of senior and lead engineers, following established designs and standards
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Write code predominantly in C, with contributions in Python for server-side components
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Execute assigned development tasks following established procedures and coding standards
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Troubleshoot software defects using debugging tools and techniques learned from senior team members
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Support operationalizing proof-of-concept vulnerabilities and CVEs into deployable capabilities under supervision
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Collaborate with team members on vulnerability research integration activities
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Contribute to test procedures and technical documentation for CNO software deliverables
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Performs other responsibilities associated with this position as may be appropriate.
What Required Skills You'll Bring:
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Active Top Secret required; must be able to attain and maintain TS/SCI
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Bachelor's degree in a related field (Computer Science, Cybersecurity, Computer Engineering, etc.)
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2+ years of relevant cyber capability tool development and/or systems/embedded development experience (entry level); Master's Degree will be considered in lieu of experience requirement.
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0-2+ years developing in C or C++ Knowledge of networking fundamentals (e.g., TCP/IP, DNS, HTTP/S)
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Experience developing in Windows or Linux environments
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Version control (Git)
What Desired Skills You'll Bring:
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Experience with CI/CD pipelines and build automation workflows
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Experience developing in both Windows and Linux environments
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Building applications in Python
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Knowledge of concurrent application development concepts (e.g., multi-threaded and/or distributed)
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Multi-architecture assembly languages (e.g., ARM, MIPS)
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Mobile development experience (e.g., Objective-C, Swift for iOS; Java, Kotlin for Android)
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Additional operating systems (e.g., OSX, router/embedded firmware platforms)
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Certifications include OSCP, OSED, OSWE, Corelan Academy. None required.
Travel Required: Up to 10% for remote roles
Security Clearance Requirement:
An active Top Secret security clearance is required for this position.
This position is part of our Federal Solutions team.
The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.
Salary Range: $88,400.00 - $154,700.00
We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!
This position will be posted for a minimum of 3 days and will continue to be posted for an average of 30 days until a qualified applicant is selected or the position has been cancelled.
Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.
We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!
Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/ .
About Us
Parsons is a digitally enabled solutions provider focused on the defense, security, and infrastructure markets. With nearly 75 years of experience, Parsons is uniquely qualified to deliver cyber/converged security, technology-based intellectual property, and other innovative services to federal, regional, and local government agencies, as well as to private industrial customers worldwide.
Parsons is an equal opportunity, drug-free employer committed to diversity in the workplace. Minority/Female/Disabled/Protected Veteran/LGBTQ+.
For more about Parsons, visit parsons.com and follow us on Facebook, Twitter, LinkedIn, and YouTube.
How this job compares
Set against the 41,311 open Software Engineer jobs on Olive Jobs, counted November 4, 2026.
- Pay
- This posting$88–155K/yr
- Virginia median$128–205K/yr1,535 salary ranges
- US median$134–215K/yr32,980 salary ranges
This range's midpoint, $122K, is 28% below the Virginia median midpoint ($169K) — in the lowest quarter of Software Engineer salary ranges in Virginia.
- Openings
- Olive Jobs lists 1,799 open Software Engineer jobs in Virginia and 41,311 across the US. 7% of them nationwide are listed as remote or flexible.
- Hiring the most in Virginia
- Capital One196 open
- Amazon130 open
- Oracle97 open
- Experience
- This posting asks for at least 2 years of experience — less than three in four Software Engineer postings that state a minimum ask for (median 5 years, across 33,552 postings).
- Education
- 14,305 of the 41,311 open Software Engineer jobs (35%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 4, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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