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An average day as a Principal Systems Integration and Test Engineer at TAG will see you handling some combination of the tasks below: Testing: Develop and implement test plans, procedures, integration, and verification documentation in both simulated and real-world environments and then perform and/or execute the test. The Principal Systems Integration and Test Engineer is an evolving hands on role that will include supporting hardware build up, installing software and firmware, testing, troubleshooting, developing test cases, and reports.

YEAR

Technology Advancement Group

Principal Systems Integration and Test Engineer

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Required Skills and Experience: Experience with the following: Linux and Windows Server deployment and administration; Active Directory and Group Policy; DNS; Python, BASH, Powershell, or similar; Ansible (Tower), Puppet, Chef, Terraform, Containerization, Jenkins, or similar; and deploying VMs within VMWare vSphere. The position will support end-to-end network, system, and element visibility; facilitate rapid operations, administration, maintenance, and provisioning to maintaining the operational integrity of a mission-critical network, requiring both technical expertise and a commitment to excellence in service delivery.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Science Applications International Corp

IT Systems Engineer

We combine innovation, deep expertise, and cutting-edge capabilities to uncover vulnerabilities, protect vital systems, and ensure operational superiority in an ever-evolving digital landscape. SIXGEN’s mission is to deliver agile, mission-ready cybersecurity solutions that empower government and critical infrastructure organizations to stay ahead of advanced cyber threats.

SixGen

Reverse Engineer

Conduct in-depth research into Windows internals , including system architecture, memory management, drivers, processes, and kernel-mode operations. Strong understanding of Windows operating system internals , including kernel architecture, drivers, APIs, memory layout, and subsystem behavior.

The Josef Group

Windows Kernel & Vulnerability Research Engineer

FULL_TIME

Demonstrate advanced networking expertise including TCP/IP protocols, routing, subnetting, VPN architectures, load balancing strategies, DNS management, and network security controls such as firewalls, security groups, and network segmentation for secure cloud and on-premises environments. Design and develop backend services and APIs in Rust for a cloud-based platform that manages fleet lifecycle operations including provisioning, configuration, monitoring, firmware updates, and policy enforcement across multiple high assurance devices.

Markon

Software Development Engineer

[AW]-iCims

Northstrat a GRVTY company, is seeking a highly skilled Infrastructure Engineer to orchestrate and execute over the air (OTA) software deployments to globally fielded systems in a potentially degraded, disconnected, intermittent, and limited (DDIL) connectivity environment. Once the software is live, the infrastructure engineer will monitor its health remotely to preempt failures that could impact mission The ideal candidate will be hands-on, security-focused, and comfortable operating in a hybrid on-premises and cloud environment.

Verite Group, Inc.

Infrastructure Engineer

Our TCS team provides innovative design, engineering, procurement, implementation, operations, sustainment, and disposal of transport and cybersecurity IT services on multiple networks and security domains, at multiple locations worldwide to support the NGA mission. Our TCS team delivers innovative design, engineering, procurement, implementation, operations, sustainment, and disposal of transport and cybersecurity IT services on multiple networks and security domains, at multiple locations worldwide to support the NGA mission.

CACI International Inc.

High Speed Guard Engineer

Senior RF Communications Engineer$140,000-$175,000 Base SalarySigning Bonus • Equity • Relocation AssistanceHybrid | Huntsville, AL | Full-Time | 9/80 ScheduleThis isn't another defense contractor job. Software Defined Radio solutions, including software, embedded processing, and integration with firmware-based radio platforms and secure embedded communications systems.

Secmation

Senior RF Communications Engineer

Talent Acquisition

Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Background in ethical hacking and/or testing software vulnerabilities with a working knowledge of hacking tools and techniques such as memory corruption exploits, buffer overflows, rootkits, protocol poisoning, MetaSploit, nmap, etc.

Cyber Reverse Engineer

Integrate and leverage modern agentic AI systems (e.g., automated exploit synthesis tools, LLM-driven fuzzers, or autonomous security agents) to accelerate embedded firmware red-teaming, vulnerability discovery, and reverse engineering workflows. Our customers rely on us to deliver mission-critical security solutions, and we're looking for an Embedded Systems Reverse Engineer who thrives on reverse engineering embedded systems, discovering security weaknesses, and developing innovative proof-of-concept exploits.

Twosix Technologies

Embedded Systems Reverse Engineer

Our government customers rely on us to deliver mission-critical security solutions, and we're looking for a Software Reverse Engineer who thrives on reverse engineering embedded systems, discovering security weaknesses, and developing innovative proof-of-concept exploits. As part of our elite team of security researchers, you'll work alongside CNO developers and hardware engineers, conducting cutting-edge vulnerability research on complex, real-world targets.

Senior Software Reverse Engineer

Agil3 Technology Solutions (A3T) is seeking an experienced Senior Network Engineer to provide enterprise network engineering, administration, sustainment, and Tier III technical support for the U.S. Government IT environment. Company Overview Agil3 Technology Solutions LLC ("A3T") is a Northern Virginia based, ISO 9001, ISO 20000-1 & ISO 27001 Certified, Women-Owned (WOSB) and Service-disabled Veteran-Owned (SDVOSB) small business.

Agil3 Technology Solutions (A3T)

Senior Network Engineer

partner JazzHR

Degree in Computer Engineering, Electrical Engineering, Mathematics, Physics, Computer Science, or equivalent practical, military, or intelligence community experience. Experience with satellite simulation software (e.g., AGI STK) or practical knowledge of handling space-related signal phenomena, such as extreme Doppler shift mitigation.

Senior RF Systems Engineer (Sdr)

Our comprehensive suite of solutions-including security, video surveillance, access control, active shooter detection, intelligent automation, energy management, and wellness-is delivered exclusively through a trusted network of thousands of professional service providers and commercial integrators across North America and worldwide. We collect and use those categories of Personal Information about you for human resources and other business management purposes, including identifying and evaluating you as a candidate for potential or future employment or future positions, recordkeeping in relation to recruiting and hiring, conducting criminal background checks as permitted by law, conducting analytics, and ensuring compliance with applicable legal requirements and Company policies.

Alarmcom Holdings Inc

Embedded Software Engineer I

Utilize exemplar techniques to reverse engineer wireless and embedded systems, identifying deep-seated vulnerabilities and exercising sound judgment to assess their security impact. Lead the planning and execution of technical research tasks, providing direction to team members on task prioritization and schedule management to meet mission-critical objectives.

Lead Software Reverse Engineer

We are looking for a talented and passionate embedded software engineer for the Device Engineering team to help us define the future of the Internet-of-Things for residential and commercial properties by creating and integrating devices including security panels, networking gateways, and video cameras. Our comprehensive suite of solutions-including security, video surveillance, access control, active shooter detection, intelligent automation, energy management, and wellness-is delivered exclusively through a trusted network of thousands of professional service providers and commercial integrators across North America and worldwide.

Device Engineer II

Through Hardware-in-the-Loop systems, on-truck development, automation frameworks, validation infrastructure, and integration tooling, we ensure software developed across Torc can be successfully integrated, tested, and deployed on its intended hardware platforms. Join Torc''s System Integration & Enablement team, where we build the tools, test infrastructure, automation frameworks, and integration environments that enable Torc''s autonomous driving platform to operate reliably at scale.

TORC Robotics LLC

Senior Systems Integration Engineer

Demonstrated strength in a primary engineering discipline; practical knowledge across embedded software, electronics, mechanical design, manufacturing, quality, test, and systems integration. Plan and execute testing for performance, durability, reliability, manufacturability, and safety; analyze data, identify root causes, and implement design improvements.

KFORM Defense

Mixed‑Signal Hardware Development Engineer (Defense & Dual‑Use)

100hires

The engineer will apply systems engineering principles across marine mechanical, electrical, electronic, control, communications, software, and autonomy-related subsystems to assess cross-subsystem interfaces, interoperability, vessel readiness, and overall system performance; resolve technical issues; and support safe, reliable, mission-capable USV operations. Prescient Edge is seeking a Marine Systems Engineer to support U.S. Navy Medium Unmanned Surface Vehicle (MUSV) acceptance, integration, test, modernization, and lifecycle engineering activities.

Firmware Engineer Jobs in Virginia

Principal Systems Integration and Test Engineer Technology Advancement Group

IT Systems Engineer Science Applications International Corp

Reverse Engineer SixGen

Windows Kernel & Vulnerability Research Engineer The Josef Group

Software Development Engineer Markon

Infrastructure Engineer Verite Group, Inc.

High Speed Guard Engineer CACI International Inc.

Senior RF Communications Engineer Secmation

Cyber Reverse Engineer CACI International Inc.

Embedded Systems Reverse Engineer Twosix Technologies

Senior Software Reverse Engineer Twosix Technologies

Senior Network Engineer Agil3 Technology Solutions (A3T)

Senior RF Systems Engineer (Sdr) Twosix Technologies

Embedded Software Engineer I Alarmcom Holdings Inc

Lead Software Reverse Engineer Twosix Technologies

Device Engineer II Alarmcom Holdings Inc

Senior Systems Integration Engineer TORC Robotics LLC

Mixed‑Signal Hardware Development Engineer (Defense & Dual‑Use) KFORM Defense

Marine Systems Engineer PRESCIENT EDGE CORPORATION

Quality Engineer I Alarmcom Holdings Inc

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