Test Engineer III

Foxhole Technology•Ft. Meade, MD

8d•$90,000 - $100,000

About The Position

Foxhole Technology provides robust cybersecurity and IT support capabilities for federal civilian and defense agencies. A recognized leader in navigating technology and security challenges, Foxhole delivers mission-focused innovations to answer evolving and complex needs. Our talented employee-owners provide agile, scalable services and solutions that solve operational gaps, operate critical systems, and protect and secure the enterprise – across the organization and around the world . The Cybersecurity Test Engineer III will support sensing development initiatives, including modernization and integration of the Open Sensor Platform (OSP), Full Packet Capture (FPCAP), Automated Security Validation (ASV), Intrusion Detection System (IDS), and emerging sensing technologies. This role will perform hands-on integration testing, regression testing, performance evaluations, data validation, and verification/validation (V&V) activities across lab, cloud, and operationally representative environments.

Requirements

Active DoD Secret clearance required.
Three (3)+ years of experience in software, systems, or cybersecurity testing.
Experience testing cybersecurity tools, network sensors, or enterprise monitoring platforms.
Understanding of networking fundamentals (TCP/IP, ports/protocols, packet flows, firewalls, routing).
Experience with automated testing, scripting, or regression testing frameworks.
Hands-on experience with tools such as ACAS, Nessus, Wireshark, Zeek, Splunk, or similar platforms.
Familiarity with DoD systems, cyber defense operations, or RMF-related validation requirements.
Strong analytical skills, attention to detail, and ability to document complex test scenarios and results.
Excellent written and verbal communication skills with the ability to work in a collaborative engineering
Knowledge of DoD cybersecurity policies including DoDD 8500.1 and DoDI 8510.01.
DoD 8570 IAT II or IAM I certification required (Security+, CySA+, CISM, CASP, CISSP or equivalent).
Strong understanding of vulnerability management principles and security control implementation.
Ability to work both independently and collaboratively in a fast paced, mission focused environment.
Strong written and verbal communication skills with experience supporting cross functional team.
Proven ability to lead technical efforts and communicate complex concepts to both technical and non-technical audiences.

Nice To Haves

Bachelor’s degree in a related field (or equivalent experience).
Experience supporting DISA, DoD cyber programs, or large scale operational sensor platforms is highly desired.
Knowledge of DevSecOps concepts, CI/CD pipelines, and automated test integration (preferred).

Responsibilities

Ability to develop test plans, procedures, automated test scripts, and detailed test reports that validate system functionality, interoperability, security requirements, and mission readiness.
Work closely with system engineers, developers, cybersecurity engineers, and DISA stakeholders to support successful delivery of new sensing capabilities used to protect and defend the DoDIN.
Support development of test plans, test procedures, and detailed test documentation for sensing capabilities under development.
Contribute to Integration & Test Readiness Reviews (ITRR), System Requirements Reviews (SRR/SFR), and Design Reviews (PDR/CDR).
Develop and maintain automated regression test suites aligned with DevSecOps pipelines.
Prepare test data, test scripts, and environment configurations required for testing events.
Document test results including issues, severity, impact, and recommended corrective actions
Executing integration and interoperability test events across multiple sensing platforms including OSP, FPCAP, ASV, and IDS.
Validate sensor performance including throughput, response time, data integrity, and system stability.
Conduct regression testing to ensure new code, patches, or configuration changes do not impact existing functionality.
Validate data flows, metadata generation (e.g., Zeek logs), and data brokering integration with SIEM tools.
Support performance testing by collecting system data under load, stress, or high-throughput scenarios.
Conduct Verification & Validation testing t o confirm compliance with system, functional, security, and operational requirements.
Support Government IV&V, JITC coordination, and Operational Test (OT) activities as required.
Assist with documenting discrepancies, defects, risk areas, and mitigation steps.
Conduct testing in sensing lab environments, virtual/cloud environments, and operationally representative platforms.
Support installation, configuration, and testing of hardware, VMs, sensing software, data brokers, and network components.
Collaborate with engineers to troubleshoot, replicate, and resolve issues discovered during testing.
Provide test support during deployment pilots, sustainment updates, and field validation testing.
Work closely with systems engineers, software developers, cybersecurity personnel, and PMO staff to ensure accurate test coverage.
Provide real-time issue tracking, severity assessments, and status reporting to Government stakeholders.
Support preparation of test briefs, test-readiness presentations, and Lessons Learned documentation.