Jobs in the United States

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Added 1 min ago
Senior Software Development Engineer in Test (SDET)
ECS FEDERAL LLC
QUANTICO, VA
Everforth ECS is seeking a Senior Software Development Engineer in Test (SDET) to work in our Quantico, VA office.
Added 1 min ago
Account Executive - Data Sales
Prophetic Technologies Inc
Remote, United States
Prophetic Software is not able to sponsor employment visas now or in the future. Candidates must be authorized to work in the United States without current or future sponsorship to be…
Added 1 min ago
Advanced Software Systems Engineer
General Dynamics Mission Systems, Inc
Boulder, CO
Participate in and/or lead all phases of software system development by providing technical strategy, operational concept development, system architecture definition, requirements analysis,…
Added 1 min ago
Senior Program Manager
General Dynamics Mission Systems, Inc
Scottsdale, AZ
Builds and leads the integrated program team across program management, systems and specialty engineering, hardware and software development, operations, manufacturing, test, mission…
Added 3 mins ago
Software AI Engineer 4
Hologic
Marlborough, MA · San Diego, CA
Hologic is seeking a Software Algorithm Engineer 4 to design, train and validate deep learning models for cytology on the Genius™ Digital Diagnostics System. This role owns the cell-level…
Added 3 mins ago
Consultant - VDL Semiconductor Office
Quest Global
Austin, TX
We are seeking a Senior Technical Program Manager (TPM) to lead strategic semiconductor design and silicon development programs for key US-based customers. This role serves as the primary…
Added 3 mins ago
Software Engineer - Site Controller, Energy Storage
Redwood Materials
San Francisco, CA
Tiered Control Logic: Lead the development of multi-rate control systems, balancing high-level site coordination with real-time grid execution. You will collaborate with simulation and…
Added 5 mins ago
Military Planning Project Manager
HDR
Colorado Springs, CO · Philadelphia, PA · San Francisco, CA · Charlotte, NC · Glen Allen, VA · Virginia Beach, VA · Newport News, VA · Vienna, VA · Folsom, CA · Jacksonville, FL · Chicago, IL · Minneapolis, MN · Seattle, WA · Ann Arbor, MI · Tampa, FL · Washington, DC · San Diego, CA · Pensacola, FL · Arlington, VA · MI · Alexandria, VA
…facilities planning projects from pursuit to cost proposal development through completion; to meet all milestones and keep the project on schedule and budget; and develop high-quality…
Added 6 mins ago
Staff Engineer - Backend/Java (REMOTE)
Fanatics Betting & Gaming
NY
Drive the development, testing, documentation, and deployment of high-quality, scalable software into production
Added 6 mins ago
ZS
IT/OT Security Intern
Zoetis Services LLC
United States
- $16 USD / hour
Experience with software development and tools such as GitHub, Python, and PowerShell.
Added 7 mins ago
Senior Systems Engineer
R.J. Corman Railroad Group
Nicholasville, KY
…Engineer in Nicholasville, KY. This role leads the design, development, testing, and support of complex electrical and signaling systems and serves as the technical lead for production…
Added 8 mins ago
Material Planning and Control Specialist
Textron
Troy, MI
Incorporate engineering changes into production schedule
Added 9 mins ago
Lead AI Engineer - NBA
Humana
Jefferson City, MO
The Lead AI Engineer owns the design and delivery of the NBA platform's agentic AI capabilities. This is a hands-on engineering role first - you are expected to be a significant individual…
Added 9 mins ago
Principal Systems Engineer - P5
Boston Scientific
Maple Grove, MN
…Systems Engineer - P5 to provide technical leadership for the development of complex medical device systems within the Interventional Cardiology division. In this role, you will drive…
Added 11 mins ago
Air System APMSE Support Analyst
Sabre Systems LLC
Patuxent River, MD
Lead the Systems Engineering aspects of a technical effort to include requirements development, requirements verification, and technical risk management.
Added 12 mins ago
Senior Vice President, Infrastructure Engineering (Mainframe Communications Systems Software Engineer
ewminds consulting Services
Jersey City, NJ
(SVP) Senior Vice President, Infrastructure Engineering (Mainframe Communications Systems Software Engineer)
Added 12 mins ago
Full Stack Engineer
ewminds consulting Services
Clairton, PA
· Lead end-to-end software delivery: requirements, design, development, testing, deployment, and post-release support across multiple applications and services
Added 12 mins ago
Senior Infrastructure Solutions Engineering (AI & Automation)
ewminds consulting Services
Frazer Township, PA
Our client is seeking a highly experienced Senior Vice President, Infrastructure Solutions Engineering leader to drive the next generation of AI-powered infrastructure automation across the…
Added 13 mins ago
Mission Analysis and Modeling Engineer
The Aerospace Corporation
Chantilly, VA
Identifying opportunities for (Project Engineer) and/or leading (Sr. Project Engineer) Aerospace matrix engineering organization and laboratory resources (ETG) to support concept…
Added 14 mins ago
Q
ASIC Project Engineer - 1101
Quantinuum
US Broomfield, CO
- $137,000 to $184,000 USD / year
Lead execution of ASIC development programs supporting Quantinuum's Apollo and Lumos quantum computing roadmaps.
Added 15 mins ago
Senior Estimator
F.H. Paschen
McLean, VA
The Senior Preconstruction Estimator will lead pursuits, initiate conversations with owners, act as the main point of contact with proposed clients and manage the Estimating group in…
Added 15 mins ago
Military Planning Project Manager
HDR
Colorado Springs, CO · Philadelphia, PA · San Francisco, CA · Charlotte, NC · Glen Allen, VA · Virginia Beach, VA · Newport News, VA · Vienna, VA · Folsom, CA · Jacksonville, FL · Chicago, IL · Minneapolis, MN · Seattle, WA · Ann Arbor, MI · Tampa, FL · Washington, DC · San Diego, CA · Pensacola, FL · Arlington, VA · MI · Alexandria, VA
…facilities planning projects from pursuit to cost proposal development through completion; to meet all milestones and keep the project on schedule and budget; and develop high-quality…
Added 16 mins ago
Senior Research Associate (Farm Manager) (0097687T, CTAHR/CARES Kona)
University of Hawaii
Kealakekua, HI
Design and lead greenhouse and field research projects, field studies, and experimental trials focusing on crop development, nutrient and soil management, water quality, and sustainable…
Added 16 mins ago
Senior CBTC Railway Signaling System Engineer
Mitsubishi Electric Power Products, Inc.
Freedom, PA
Lead system engineering activities for CBTC projects, including requirements development, system architecture, interface design, and integration planning.
Added 17 mins ago
Sourcing Engineer
United States
…procurement of key materials, components, and services from product development to serial production. This role will develop sourcing strategies, build supplier partnerships, mitigate risk,…

SOSi

Cyber Security Engineer SME

Washington, DC, United States

$119,803 to $248,822 USD / year

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Job details

Pay: $119,803 to $248,822 USD / year
Posting language: English
Posted: Nov 9, 2026

Original job description

Company Description Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics.

Job Description

*** This position is contingent upon contract award ***

Overview

SOSI is seeking a Senior Cybersecurity Engineer to serve as a technical subject matter expert supporting an enterprise cyber defense program for a federal customer. This senior, highly visible role sits at the intersection of security engineering, architecture, and operations. It shapes how the customer evaluates, integrates, and matures its defensive capabilities. The ideal candidate combines hands-on engineering depth with the judgment to advise government stakeholders on emerging threats and technologies. This position is located in the Washington, DC metropolitan area and requires the ability to obtain a Secret clearance.

Job Description

The Senior Cybersecurity Engineer serves as a trusted technical advisor across a broad defensive cybersecurity portfolio. In this role, you will assess the customer’s security architecture, identify gaps, and design practical solutions that strengthen detection, response, and protection across on-premises, cloud, and mobile environments. You will lead technical evaluations and proofs of concept for new security technologies and translate findings into clear recommendations for leadership. You will work closely with security operations, engineering, and system owner teams. Together, you will turn operational needs into defined security requirements and controls, help integrate security into development and deployment pipelines. The role also supports the customer’s adoption of emerging technology areas, including AI-enabled capabilities and cryptographic modernization. Success in this position requires technical breadth, sound engineering judgment, and the ability to communicate complex security concepts to both technical and non-technical audiences.

Responsibilities

Serve as a senior technical advisor on enterprise security architecture, engineering, and defensive operations
Conduct security architecture reviews, identify gaps, and develop risk management recommendations
Translate operational and mission requirements into security requirements, control baselines, and concepts of operation
Plan, integrate, and tune security tooling across monitoring, detection, automation, and threat intelligence platforms
Lead market research, technical evaluations, and proofs of concept for emerging cybersecurity technologies
Support the security of cloud environments (IaaS, PaaS, SaaS) and integrate security practices into DevSecOps pipelines
Provide security engineering support for identity, authentication, and mobile security initiatives
Support cryptographic modernization efforts, including discovery, inventory, and planning for next-generation encryption standards
Advise on the secure adoption of AI and generative AI technologies
Apply incident response methods and support complex investigations as a technical escalation resource
Develop scripts and automation to improve efficiency in security engineering and operations tasks
Produce clear technical documentation, briefings, and recommendations for government and program leadership
Mentor team members and contribute to continuous improvement of engineering processes

Qualifications

Experience:

Five (5) years security-related experience

Required:
Experience implementing tools and processes to support comprehensive offensive and defensive cybersecurity solutions to identify, detect and mitigate sophisticated cybersecurity threats
Experience with incident response methodologies, categories and timelines, cyber defense policies and procedures and the ability to perform damage assessments determine remediation paths
Experience in intrusion and threat detection methodologies for cloud, host, network and mobile environments
Experience in the use and tuning of security event correlation tools
Understanding of attack classes, attack stages and adversary behaviors
Knowledge of MITRE ATT&CK and D3FEND frameworks and the ability to map those to enterprise cybersecurity tool implementations and investments
Desired:
Experience with digital media analysis and digital forensics
Experience conducting static and dynamic analysis (sandboxing, reverse engineering) of malicious binaries to understand adversary TTPs, identify C2 infrastructure and extract IOCs
Experience correlating forensic findings with SOC alerts, threat intelligence, and adversary TTPs
Knowledge of network security architecture, topology and communication principles
Understanding of network protocols (TCP/IP, DHCP, DNS, directory services)
Understanding of clous service models and their impact on incident response capabilities
Knowledge of system administration, OS hardening and application security threats
Education: Bachelor’s Degree
Certifications: Any 1 of: CISSP (associate), CCSP, SSCP, GMON, GCIH, GCIA, or equivalent GIAC certification, CEH, CASP AND any 1 from the CSSP Analyst, Infrastructure Support, or IR from the DOD 8140 list (or other similar certifications as approved by Government)
Clearance/Suitability: Secret (active); Top Secret, SCI Clearance (eligible)

Additional Information Work Environment

Normal office conditions with potential to perform duties in deployed locations.
Core hours of operation are Monday through Friday, 0600 – 1700.
May be requested to work evenings and weekends to meet program and contract needs.

Working at SOSi All interested individuals will receive consideration and will not be discriminated against for any reason.

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More about this job

Skills

Cybersecurity
Logistics
Leadership
Security regulations
Risk management
Market research
Incident response
Documentation
Process improvement
Engineering processes
MITRE ATT&CK
Reverse engineering
Communication principles
DHCP
DNS
System administration
Security threats
CISSP

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