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# Vulnerability Researcher/Reverse Engineer/CNO Developer (Onsite)

- **Company:** NIGHTWING LLC
- **Location:** San Antonio, TX, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Border Gateway Protocol, C++ (Programming Language), Software Debugging, Memory Management, Payment Systems, GNU Debuggers, Python (Programming Language), Routing, Network Protocols, OllyDBg, Reverse Engineering, Software Systems, TCP/IP, WinDBg, IDA Pro, Scalable Processor Architecture
- **Published:** July 23, 2026
- **Apply:** https://dejobs.org/x/x/FE7E2C0C2E174BBC93BA607A88792EEE/job/

## About the Role

* Ability to obtain a U.S. Government TS/SCI Clearance
 * Experience with C or C++ Experience with Python
 * BS/MS in technical discipline (Equivalent work experience will be considered)
 * 4 or more of the following desired skills

Desired Skills

 * Existing U.S. Government DOD TS or TS/SCI Clearance
 * Understanding of OS Internals (any major OS)
 * Experience reading or writing assembly (x86, x64, ARM, PPC, MIPS, SPARC, 68k, or others)
 * Familiarity with stack frames, calling conventions, and memory management
 * Experience developing embedded systems
 * Understanding of network protocols (TCP/IP stacks, wire-level protocols, RF communications, BGP, routing protocols, or others).
 * Understanding of exploit mitigations such as DEP and ASLR
 * Experience using reverse engineering tools such as Ghidra, IDA Pro, HexRays, Binary Ninja, or objdump.
 * Experience using debuggers such as gdb, WinDbg, OllyDbg
 * Experience building and using tools to find, exploit, and productize vulnerabilities in complex software systems
 * Utilizing full system emulation for research and analysis

Education Required

BS/MS in technical discipline (Equivalent work experience will be considered)

## Description

Vulnerability Researchers at NightWing CODEX analyze systems to understand how they work and how they behave when they break. Candidates must be able to play both sides of the fence, both developing and defeating new and advanced security techniques. Projects are undertaken in small teams with close coordination with customers. All our engineers write code, but many of our engineers spend as much time taking systems apart as building new ones. A typical day can involve studying disassembly or writing Python to audit a piece of C++ code.


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