Legato: Delivers IT engineering and cybersecurity services to defense agencies.
7+ YOE7-10+ years in low-level or systems programming; TS/SCI clearance; strong C/C++, Windows kernel experience; reverse engineering and tooling proficiency.
REDLattice: Provides advanced cybersecurity software and vulnerability research services.
Advanced development in C/C++/Python and Android NDK, exploit and kernel-level debugging experience, reverse engineering skills, and familiarity with UNIX/Linux internals and mobile security.
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Active TS/SCI clearance (US citizen), experience in C, Python, Assembly, Linux system/kernel and driver development, understanding of network devices/protocols and reverse engineering; SCI eligibility required.
REDLattice: Provides advanced cybersecurity software and vulnerability research services.
Active TS/SCI with Polygraph, Bachelor's in technical field or equivalent, advanced C/C++/Python and Android NDK development, exploit research, kernel debugging, reverse engineering, Git/Bitbucket experience.
Washington or Orlando or Montvale or New York City or Dallas
OnsiteFull Time
KPMG: Global professional services network providing audit, tax, and advisory.
1+ YOE1+ year software engineering or data science experience, bachelor’s in CS or related, strong Python skills, Git, willingness to work with Azure, Docker, Kubernetes, LangChain, Semantic Kernel, and US work authorization required.
ManTech: Provides technology solutions for defense and intelligence agencies.
15+ YOEUS citizen with active TS/SCI with Poly, 15+ years experience (or Master's with 10+ cloud years), familiarity with generative AI tools, vector DBs, Python, LangChain/Semantic Kernel, and cloud-native infrastructure automation.
REDLattice: Provides advanced cybersecurity software and vulnerability research services.
Experience developing iOS software, exploit development, reverse engineering, kernel and OS internals, strong programming in Objective-C/Swift/C/C++/Python, active TS/SCI with polygraph, bachelor's degree in a technical field.
Washington or Orlando or Montvale or New York City or Dallas
OnsiteFull Time
KPMG: Global professional services network providing audit, tax, and advisory.
5+ YOEPhD or Master’s in a quantitative field required, 5+ years data science experience, generative AI and LLM expertise, production ML delivery, Python, Databricks/Microsoft Fabric, LangChain/LangGraph/Semantic Kernel, Git and Azure DevOps.
LangSmith, LangChain, LangGraph, Semantic Kernel, Azure OpenAI, Google Cloud, Python, Databricks, Microsoft Fabric, Azure AI Search, Git, Azure DevOps
Washington or Orlando or Montvale or New York or Dallas
OnsiteFull Time
KPMG: Global professional services network providing audit, tax, and advisory.
8+ YOE8+ years applied AI/ML research experience in NLP and LLMs; expertise in knowledge retrieval (RAG), AI agent architecture, model training and MLOps; experience with LangChain/LangGraph or Semantic Kernel; Bachelor’s required, advanced degree preferred.
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Active US citizenship and TS/SCI clearance; experience in C, C++, Python; OS-level and Windows kernel development, device drivers, Visual Studio, Windows SDK/DDK, WinDBG; network protocol understanding; software configuration management and unit testing.
C, C++, Python, Visual Studio IDE, Windows SDK, Windows DDK, WinDBG
CodanAustralian Securities Exchange: CDA: Designs and manufactures communications and metal detection technology.
Bachelor's or Master's in EE/CE/CS; embedded Linux; digital hardware; leadership in distributed teams; C/C++/Python; networking; hardware/software debugging; cross-domain collaboration.
HawkEye 360NYSE: HAWK: Provides space-based signals intelligence and radio frequency analytics.
3+ YOE3+ years spacecraft flight software on RTOS/embedded Linux, strong C/C++ and Python, Git experience, hardware bring-up and embedded driver development, problem solving and cross-team communication.
Austin or Atlanta or Denver or Seattle or Washington
HybridFull Time
CloudflareNYSE: NET: Provides security and performance services for internet properties.
3+ YOE3+ years network/site reliability engineering experience; BA/BS in CS or equivalent; experience with Saltstack, Ansible, Chef, NX-OS/JUNOS/EOS/Cumulus/Sonic; Linux administration; iproute2, Traffic Control, Devlink; software development in Go and Python; AI/LLM tooling experience.
Mid-Level Linux Software Engineer - Chantilly, Virginia, United States
Rockville or Chantilly
$100k-$140k/yrHybridFull Time
JacobsNYSE: J: Global provider of professional engineering and technical services.
5+ YOEBachelor's in CS/CE, 5-10 yrs C++ on Linux; OO design; Linux concepts; problem solving; teamwork; US citizenship; eligible for security clearance. Masters preferred; embedded/GPU/HPC experience a plus.