... engineering and cloud security. The role involves executing complex vulnerability research ... Responsibilities : • Execute research into OCI runtimes (runc, crun) and Linux kernel primitives ...
... engineering and cloud security. The role involves executing complex vulnerability research ... Responsibilities : • Execute research into OCI runtimes (runc, crun) and Linux kernel primitives ...
Principal systems software engineer
$147K - $198K/yr
Experience with Linux driver or Linux Kernel development * Ability to work independently and lead ... Minimum 5 years of software engineering or related work experience * Masters or PhD in Computer ...
Quick apply
Principal systems software engineer
$147K - $198K/yr
Experience with Linux driver or Linux Kernel development * Ability to work independently and lead ... Minimum 5 years of software engineering or related work experience * Masters or PhD in Computer ...
Principal systems software engineer
$147K - $198K/yr
Experience with Linux driver or Linux Kernel development * Ability to work independently and lead ... Minimum 5 years of software engineering or related work experience * Masters or PhD in Computer ...
Quick apply
Principal systems software engineer
$147K - $198K/yr
Experience with Linux driver or Linux Kernel development * Ability to work independently and lead ... Minimum 5 years of software engineering or related work experience * Masters or PhD in Computer ...
C++ Software Engineer
Manhattan, NY · On-site
... the Linux kernel, systems programming • A passion for solving challenging problems • Strong systems knowledge and prefer some experience in developing low latency systems • Experience with ...
C++ Software Engineer
Manhattan, NY · On-site
... the Linux kernel, systems programming • A passion for solving challenging problems • Strong systems knowledge and prefer some experience in developing low latency systems • Experience with ...
Infrastructure Engineer - Linux
New York, NY · On-site
$165K - $250K/yr
Infrastructure Engineer - Linux Location NY New York United States Business Investment Management ... Solve sophisticated issues across the stack, from kernel-level problems to application performance
Infrastructure Engineer - Linux
New York, NY · On-site
$165K - $250K/yr
Infrastructure Engineer - Linux Location NY New York United States Business Investment Management ... Solve sophisticated issues across the stack, from kernel-level problems to application performance
C++ Software Engineer
New York, NY · On-site +1
$175K - $300K/yr
In-depth knowledge of the Linux kernel, systems programming * A passion for solving challenging problems * Strong systems knowledge and prefer some experience in developing low latency systems
C++ Software Engineer
New York, NY · On-site +1
$175K - $300K/yr
In-depth knowledge of the Linux kernel, systems programming * A passion for solving challenging problems * Strong systems knowledge and prefer some experience in developing low latency systems
Senior Infrastructure Engineer (Linux & Identity)
New York, NY · On-site
$118K - $161K/yr
* Senior Systems Engineer - Identity & Linux Security * New York (Hybrid) * Highly competitive ... Deep-dive Troubleshooting - Go beyond standard admin tasks to debug complex OS, kernel, and ...
Senior Infrastructure Engineer (Linux & Identity)
New York, NY · On-site
$118K - $161K/yr
* Senior Systems Engineer - Identity & Linux Security * New York (Hybrid) * Highly competitive ... Deep-dive Troubleshooting - Go beyond standard admin tasks to debug complex OS, kernel, and ...
Linux Engineer
New York, NY · On-site
As a Linux Engineering intern, you'll work side by side with full-timers to learn how we build and ... fixing a kernel bug, responding to an overheating datacenter in real time, analyzing data to ...
Linux Engineer
New York, NY · On-site
As a Linux Engineering intern, you'll work side by side with full-timers to learn how we build and ... fixing a kernel bug, responding to an overheating datacenter in real time, analyzing data to ...
Sr Linux Engineer
Greenwich, CT · On-site
Sr Linux Engineer Job Location: Connecticut Job Type: Permenant Specifically, you will: * Work as ... Excellent knowledge of tuning Linux for low latency, high throughput, and kernel bypass (e.g ...
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Sr Linux Engineer
Greenwich, CT · On-site
Sr Linux Engineer Job Location: Connecticut Job Type: Permenant Specifically, you will: * Work as ... Excellent knowledge of tuning Linux for low latency, high throughput, and kernel bypass (e.g ...
Email Reliability Engineer
New York, NY · On-site
$62.25 - $82.75/hr
Senior Systems Engineer - Email Reliability (Hybrid SRE) New York, NY (Hybrid, 3 days in office ... Deep comfort with the Linux kernel, TCP stack tuning, and Postfix/MTA configuration management.
Email Reliability Engineer
New York, NY · On-site
$62.25 - $82.75/hr
Senior Systems Engineer - Email Reliability (Hybrid SRE) New York, NY (Hybrid, 3 days in office ... Deep comfort with the Linux kernel, TCP stack tuning, and Postfix/MTA configuration management.
As a Linux Engineering intern, you'll work side by side with full-timers to learn how we build and ... fixing a kernel bug, responding to an overheating datacenter in real time, analyzing data to ...
As a Linux Engineering intern, you'll work side by side with full-timers to learn how we build and ... fixing a kernel bug, responding to an overheating datacenter in real time, analyzing data to ...
Sr Linux Engineer
Greenwich, CT · On-site
Senior Linux Engineer Job Location: Greenwich Connecticut , Onsite Job Type: Permenant * Work as ... Excellent knowledge of tuning Linux for low latency, high throughput, and kernel bypass (e.g ...
Quick apply
Sr Linux Engineer
Greenwich, CT · On-site
Senior Linux Engineer Job Location: Greenwich Connecticut , Onsite Job Type: Permenant * Work as ... Excellent knowledge of tuning Linux for low latency, high throughput, and kernel bypass (e.g ...
Senior Lead Software Engineer- Platform / Linux Engineering
Manhattan, NY · On-site
$171K - $260K/yr
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Senior Lead Software Engineer- Platform / Linux Engineering
Manhattan, NY · On-site
$171K - $260K/yr
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Senior Lead Software Engineer- Platform / Linux Engineering
Manhattan, NY · On-site
$171K - $260K/yr
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Senior Lead Software Engineer- Platform / Linux Engineering
Manhattan, NY · On-site
$171K - $260K/yr
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
New
Perform deep performance engineering and latency optimization: kernel tuning, CPU isolation/pinning ... Deep, hands-on Linux engineering expertise - administration, internals, performance tuning, and ...
New
Contract Linux Kernel Engineer information
What is the difference between Contract Linux Kernel Engineer vs Contract Embedded Linux Developer?
| Aspect | Contract Linux Kernel Engineer | Contract Embedded Linux Developer |
|---|---|---|
| Required Credentials | Linux kernel knowledge, C programming, Linux certifications | Embedded systems, Linux, C/C++, hardware familiarity |
| Work Environment | Kernel development, system-level programming, Linux environments | Embedded devices, hardware integration, real-time systems |
| Employer & Industry Usage | Tech companies, hardware manufacturers, open-source projects | Consumer electronics, automotive, IoT devices |
| Search & Comparison Intent | Focus on kernel-level expertise, system optimization | Focus on embedded system development, hardware-software integration |
The Contract Linux Kernel Engineer primarily works on kernel development, system optimization, and low-level Linux system tasks. In contrast, the Contract Embedded Linux Developer focuses on developing Linux-based software for embedded devices, often involving hardware integration. Both roles require Linux and C expertise but differ in scope and environment, catering to different industry needs.

Junior Vulnerability Researcher (Cloud & Containers)
Florham Park, NJ • On-site
Full-time
Re-posted 23 days ago
Job description
CACI International Inc is seeking a Junior Vulnerability Researcher with a strong background in systems-level engineering and cloud security. The role involves executing complex vulnerability research, developing automated tools, and analyzing containerized environments to enhance national cybersecurity infrastructure.
Responsibilities:
• Execute research into OCI runtimes (runc, crun) and Linux kernel primitives (namespaces, cgroups) to identify breakout and privilege escalation paths.
• Perform static and dynamic analysis on compiled binaries (Go, Rust, or C++) to map logic and identify potential security vulnerabilities.
• Develop and maintain custom fuzzing harnesses (e.g., AFL++, libFuzzer) to stress-test gRPC interfaces and microservice components.
• Use symbolic and concolic execution tools (e.g., Angr, Manticore) to automate the discovery of complex execution paths.
• Analyze containerized environments and system initialization logic to identify and document potential attack surfaces.
• Write custom Python3 scripts to automate research workflows, including firmware unpacking and memory analysis.
• Generate detailed technical reports and documentation for discovered vulnerabilities and research methodology.
Qualifications:
Required:
• An active Top Secret clearance.
• 3–5 years of professional experience in vulnerability research, reverse engineering, or systems-level software development.
• Proficiency in Go, Rust, or C/C++ and strong scripting skills in Python3.
• Experience with disassembly and decompilation tools such as IDA Pro, Ghidra, or Binary Ninja.
• Working knowledge of Linux kernel internals, specifically regarding container isolation (namespaces/cgroups).
• Hands-on experience with debugging tools like GDB and packet analysis tools like Wireshark.
• Familiarity with container orchestration (Kubernetes) and the OCI runtime specification.
• Demonstrated ability to conduct independent technical research and document complex findings.
Preferred:
• An active SCI clearance.
• Previous experience with fuzzing frameworks and vulnerability discovery in distributed systems.
• Understanding of x86 or ARM assembly language.
• Experience with cloud provider security (AWS, Azure, or GCP).
• Relevant security certifications or a history of participation in advanced CTF competitions.
Company:
At CACI International Inc (NYSE: CACI), our 27,000 talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest challenges in national security. Founded in 1962, the company is headquartered in Arlington, USA, with a team of 10001+ employees. The company is currently Late Stage.