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Senior Cyber Test Engineer; Onsite Security Clearance

Job in Sterling, Loudoun County, Virginia, 20163, USA
Listing for: Nightwing
Full Time position
Listed on 2026-01-06
Job specializations:
  • Engineering
    Cybersecurity, Systems Engineer
  • IT/Tech
    Cybersecurity, Systems Engineer
Job Description & How to Apply Below
Position: Senior Cyber Test Engineer (Onsite) with Security Clearance
Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in the intelligence community, defense, civil, and commercial markets.

CODEX Overview CODEX (Cyber Offense and Defense Experts) division brings together an elite team of mission-focused industry experts who are well known for their ability to overcome the most advanced technical challenges. The team comprises engineers of multiple disciplines including vulnerability research, reverse engineering, CNO/CNE development, hardware emulation, system engineering, and data analytics. Our engineers do more than just work with cutting-edge technology-they ensure the missions succeed for the customers!

CODEX offices span the nation and offer its engineers the ability to advance their careers through mentorship, training, and an expansive technical portfolio that covers every side of cyber. If you want to be part of a collaborative team that supports challenging, meaningful work that is vital to our national security, apply today! Senior Cyber Test Engineer CODEX is seeking a cyber test engineer for a high-visibility CNO development team.

In this role, you will make a direct positive impact on the customer's needs and mission. You will be accountable for verifying the consistency and quality of our products and be actively involved throughout the entire development process. You will engage with internal and customer stakeholders to derive system requirements and react to mission needs. You will develop a deep understanding of the tools, systems, and frameworks used by the customer, and how to effectively integrate them with various technologies to build a real-world test environment and create a test plan.

You will utilize your technical skills to build and maintain custom test frameworks and generate thorough documentation. Competitive candidates have excellent communication skills, strong attention to detail, and are mission focused. A technical background in networking and familiarity with Agile methodologies is preferred.

Required Qualifications
* TS/SCI Clearance is required

* 5 years test engineering or related experience

* 3 year of experience developing in Python, Bash, or similar scripting language

* 3 year of experience working on Linux/Unix systems

Basic knowledge of TCP/IP networking, architecture, and core technologies (such as DNS, DHCP,

* HTTP, Routing, VPN)

* Excellent communication, collaboration, analytical, and problem-solving

* skills

* Ability to interface with customers, end-users, technical leads, and program management Desired Qualifications
* Experience building test automation frameworks

* Experience designing, writing, reviewing, and executing test plans, procedures, reports, and other technical documentation

* Familiarity with Agile mindset and methodologies

* Ability to think abstractly and drive toward defined requirements and testing strategies

* Experience using virtualization technologies such as Docker Education Requirements Requires a degree in a technical discipline Not Relocation Eligible Employee Referral Award Eligibility:
This requisition is eligible for an employee referral award. ALL eligibility requirements must be met to receive the referral award.

What We Offer:

Whether you're just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care. Previously part of a leading Fortune 100 company and headquartered in Dulles, VA;
Nightwing became…
Position Requirements
10+ Years work experience
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