Senior Vulnerability Researcher/Reverse Engineer

Nightwing; San Antonio (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Nightwing in the United States is seeking a qualified engineer for an onsite role focused on research, reverse engineering, and tool development for classified and unclassified software.

You will work in small teams with government customers, require TS/SCI clearance, a STEM degree, 3–5 years of experience, and hands‑on experience with IDA/Ghidra/BinaryNinja, full-system emulation, and assembly languages (x86/64, ARM, PPC, MIPS).

Qualifications

• Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) preferred.
• Experience in vulnerability research on public targets or similar domains.
• Strong reverse engineering experience with modern tooling.

Responsibilities

• Contribute to research, reverse engineering, development, testing, maintenance, and modification of complex software (classified and unclassified).

Skills

Vulnerability research

Reverse engineering

Assembly language

C/C++/Python

Education

Bachelor’s degree in STEM (STS)

Tools

IDA

Ghidra

BinaryNinja

Job description

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. At Nightwing, we value collaboration and teamwork. You’ll have the opportunity to work alongside talented individuals who are passionate about what they do. Together, we’ll leverage our collective expertise to drive innovation, solve complex problems, and deliver exceptional results for our clients.

Job Summary

Our team covers the full life cycle from emulation, reverse engineering, vulnerability research, and CNO/CNE tool development for various operating systems. Our mission covers a wide range of targets, anything from major consumer electronics to proprietary one-off systems. If it runs code, we have probably looked at it (or will soon.). In addition, the position will provide deliverables for real-world use in relatively short turn‑around times. Projects will be undertaken in small teams with close coordination with customers to quickly enhance capabilities or resolve issues in existing tools for real‑world applications. Working as part of a team you will also need to be familiar with source management tools such as GIT and team coordination tools like the Atlassian suite of work products. All candidates must be US citizens and be able to obtain and maintain a government security clearance. This position is an onsite role.

Responsibilities to Anticipate

We seek a qualified engineer that can perform as a team member on activities involved with research, reverse engineering, development, testing, maintenance, and modification of complex classified and unclassified software applications.

Required Skills

• TS/SCI Clearance Required
• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 3-5 years of prior engineering experience or equivalent experience unless prohibited by local laws/regulations
• Vulnerability research experience of public targets
• Reverse engineering utilizing any of IDA/Ghidra/BinaryNinja
• Utilizing full system emulation for research and analysis
• Experience with assembly language (x86/64, ARM, PPC, Mips, etc.)

Desired Skills

• C/C++/Python
• Capture the Flag (CTF) experience
• Fuzzer developmentUnderstanding of network protocols (TCP/IP stacks, wire‑level protocols, RF communications, BGP, routing protocols, or others)
• Linux or other OS reversing
• May have practical knowledge of project management

What We Offer

Whether you’re just starting out on your career journey or are an experienced professional, we offer a total rewards package that goes above and beyond 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. In addition to competitive salaries, CODEX offers excellent benefits for you and your family: competitive medical, dental and vision plans, child, elderly and dependent-care programs, mental health resources, tuition assistance, employee discount programs, 401k matching, flexible work schedules (depending on program), a peer recognition and reward system and performance-based bonuses.

Additional Information

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

ERIP Eligibility - This requisition is eligible for an employee referral award. ALL eligibility requirements must be met to receive the referral award.

Nightwing is An Equal Opportunity/Affirmative Action Employer. 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, age or any other federally protected class.