Senior Vulnerability Researcher; Cloud & Containers Security Clearance

Position: Senior Vulnerability Researcher (Cloud & Containers) with Security Clearance
Job Title:

Senior Vulnerability Researcher (Cloud & Containers) Job Category:
Engineering Time Type:
Full time Minimum Clearance Required to Start:
Top Secret Employee Type:
Regular Percentage of

Travel Required:

Up to 10% Type of Travel:
Continental US *
*
* The Opportunity:

We are seeking a Senior Vulnerability Researcher with deep expertise in cloud-native architecture, container runtimes, and advanced binary analysis. This role is ideal for a low-level expert who thrives on technical ambiguity and enjoys hunting for vulnerabilities within the "DNA of the cloud." You will use automated reasoning and manual deep-dives to uncover escapes and logic flaws in Kubernetes infrastructure, playing a key role in evaluating the security of critical distributed systems and contributing directly to national cybersecurity efforts.

Responsibilities :
* Conduct deep-dive research into OCI runtimes (runc, crun) and Linux kernel primitives (name spaces, cgroups, eBPF) to identify breakout and privilege escalation paths.

* Perform static and dynamic analysis on compiled binaries (Go, Rust, C++) using IDA Pro, Ghidra, or Binary Ninja to map undocumented logic and potential security issues.

* Build and maintain custom fuzzing harnesses (e.g., AFL++, lib Fuzzer) to stress-test gRPC interfaces, service mesh components, and microservices.

* Utilize concolic execution tools (e.g., Angr, Manticore) to automate the discovery of complex execution paths and bypass security checks.

* Investigate edge-case behaviors in containerized environments and low-level system initialization logic to reveal hidden attack surfaces.

* Develop custom tools and scripts (primarily in Python3) to automate research workflows, protocol decoding, and memory analysis.

* Document findings clearly and translate technical complexity into actionable reports for security and engineering teams. Qualifications :
Required :
* An active Top Secret clearance.

* 7+ years of professional experience in vulnerability research, software exploitation, or low-level engineering.

* Expert-level proficiency in Go, Rust, and C/C++.

* Strong command of Python3 for scripting and automation of research tasks.

* Deep understanding of x86/ARM assembly and memory corruption primitives.

* Proven track record of finding vulnerabilities in distributed systems, virtualization layers, or container runtimes.

* Hands-on experience with disassembly and decompilation tools (e.g., IDA Pro, Ghidra, Binary Ninja) and debugging tools (GDB).

* Detailed understanding of Linux kernel internals, specifically name spaces, cgroups, and the container execution model.

* Experience with automated bug-hunting techniques, including fuzzing and symbolic/concolic execution. Desired:
* An active SCI clearance is highly desired.

* Experience with Kubernetes security architecture and service mesh implementations (Istio, Linkerd).

* Familiarity with hardware-assisted isolation technologies and TEEs (Trusted Execution Environments).

* Ability to build scalable security tooling and infrastructure to support analysis workflows in a team setting.

* Background in cloud provider security (AWS, Azure, or GCP) and underlying hypervisor technology.

- What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day.

You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.

Pay Range :
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor…