Jobs in the United States

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Added 3 mins ago
Systems Engineer
Singularity Defense Corp.
Gardena, CA
As a Systems Engineer, you'll drive how our flight vehicle holds together as a system: its subsystems, the interfaces between them, and the evidence that it all works in the environments it…
Added 5 mins ago
Senior Software Engineer
C.H. Robinson Shared Services, Inc.
Remote, United States
C.H Robinson is seeking a Senior Software Engineer on our Book-It-Now/Digital Negotiator Costing team where you will collaborate with our data science teams to costing automation and…
Added 6 mins ago
Senior Site Reliability Engineer
US AMR-Jones Lang LaSalle Americas, Inc.
Remote, United States
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Added 10 mins ago
Staff Site Reliability Engineer
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Remote, United States
…You will design and build critical infrastructure yourself, lead cross-team initiatives from conception to delivery, and raise the reliability bar across engineering by partnering closely…
Added 10 mins ago
Senior Manager, GTM Engineering
Iru
United States
Iru is the AI-powered security & IT platform used by the world’s fastest-growing companies to secure their users, apps, and devices. Built for the AI era, Iru unifies identity & access,…
Added 15 mins ago
Manager, Software Engineering (Sales Technology)
Remote, United States
The Technology Department at Dimensional leverages the rapidly evolving state of the art to engineer the platforms that power the innovative, research-driven financial and technical…
Added 16 mins ago
Senior Systems Engineer
Omitron, Inc.
Colorado Springs, CO
Work with the Information System Security Manager (ISSM) and Information System Security Engineer (ISSE) to build security into the design from the start.
Added 18 mins ago
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Principal Software Engineer, AI Core Infrastructure at OCI
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
We are looking for a Principal Software Engineer to lead the design and delivery of software platforms for AI infrastructure. You will translate ambiguous problems into clear technical…
Added 18 mins ago
Principal Electrical Engineer
Oracle
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…ensuring they meet functional, performance, power efficiency, security, and reliability requirements. Completes parts selection, qualification, Field-Programmable Gate Array (FPGA) design,…
Added 18 mins ago
AE
Campus Undergraduate Summer Internship Program - 2027 Data Engineer, Enterprise Technology Services- Sunrise, FL
American Express
Sunrise, FL
- $24.05 to $63 USD / hour
…provide product management for core enterprise platforms, and lead technology risk and information security, enterprise data governance and platforms, digital product and design, and…
Added 19 mins ago
Machine Learning Engineer
ADT
Boca Raton, FL
Lead model documentation, validation, and production-readiness activities while ensuring adherence to established responsible AI, legal, compliance, security, architecture, and engineering…
Added 26 mins ago
Full Stack Software Engineer
Globus Medical Inc
Audubon, PA
The Full Stack Software Engineer will be responsible for designing, developing, and maintaining both frontend and backend software for our Robotics products. This role spans modern web…
Added 30 mins ago
Senior/Staff Full Stack Software Engineer
Red Cell Partners
Remote, United States
As a Senior or Staff Full Stack Software Engineer at Trase, you will build and support software for Red Cell Federal (RCF), Red Cell Partners (RCP), and RCP incubations and portfolio…
Added 30 mins ago
Senior/Staff DevOps Engineer, Federal
Red Cell Partners
Remote, United States
As a Senior or Staff DevOps Engineer at Trase, you will build, deploy, and operate the infrastructure supporting Red Cell Federal and Red Cell Partners’ incubations and portfolio companies.…
Added 30 mins ago
Senior Director, Software Engineering
Circana
Remote, United States
We are seeking a skilled and motivated Data Engineer to join our growing team. In this role, you will be responsible for designing, building, and maintaining robust data pipelines and…
Added 36 mins ago
Test Engineer - Prin
BAE Systems
Nashua, NH
…We are all about trust, camaraderie and a shared ambition to lead the world in defense technologies and national security services. We offer a flexible work environment and 9/80 work…
Added 44 mins ago
TV
Software Engineer, Platform Team
The Voleon Group
Remote, United States
- $235,000 to $300,000 USD / year
As a Software Engineer on the Software Platform team, you will design and evolve the distributed systems that power research and trading workflows across on-premises and cloud environments.…
Added 47 mins ago
Avionics Test and Launch Engineer II
Rocket Lab Corporation
Wallops Island, VA
Lead and manage testing projects for avionics and electrical systems
Added 47 mins ago
S
Staff DevSecOps Engineer
SimpliSafe
Boston, MA
- $135,900 to $181,200 USD / year
At SimpliSafe, the Staff DevSecOps Engineer is responsible for advancing security across the product lifecycle, spanning backend services and AWS cloud platforms. This role drives the…
Added 50 mins ago
Comcast Cybersecurity: Senior Identity & Access Management Engineer
Comcast
Mount Laurel, NJ
…knowledge of applicable IAM compliance standards. Conducts security assessments and audits to identify cybersecurity risks within the company's networks, applications and operating…
Added 50 mins ago
Senior Lead Software Engineer
JPMorgan Chase
Jersey City, NJ
As a Senior Lead Software Engineer at JPMorganChase within the Commercial and Investment Bank Payments Technology team, you are an integral part of an agile team that works to enhance,…
Added 50 mins ago
GS
Lead Infrastructure Engineer - Hardware Engineering
GHD Services, Inc.
Jersey City, NJ
- $70 to $90 USD / hour
…Linux-based server environments and using scripting languages such as Python or Bash. Experience managing Bills of Materials (BOMs) and coordinating technical deliverables across…
Added 50 mins ago
Principal Engineer Industrial
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Principal Industrial Engineer (Level 3) to join our team of qualified, diverse individuals on the exciting program at Edwards Air…
Added 52 mins ago
Senior Director, Software Engineering
Circana
Chicago, IL
We are seeking a skilled and motivated Data Engineer to join our growing team. In this role, you will be responsible for designing, building, and maintaining robust data pipelines and…
Added 53 mins ago
Senior DevOps Engineer – SaaS Integration
LEIDOS, INC.
Adelphi, MD
Leidos is seeking a Senior DevOps Engineer – SaaS Integration to lead the integration, automation, deployment, and sustainment of mission-critical applications supporting the U.S. Army…

Leidos

Sr. Offensive Cyber Engineer

Lawton, OK, United States

Pay Range $107,900.00 - $195,050.00

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Job details

Pay: Pay Range $107,900.00 - $195,050.00
Posting language: English
Posted: Oct 30, 2026

Original job description

Description

Leidos has a new and exciting opportunity for a Sr. Offensive Cyber Engineer in our INTEL Sector's Cyber & Analytics Business Area (CABA) . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

We are seeking an experienced Sr. Offensive Cyber Engineer (Penetration Tester) with detection engineering capabilities to conduct comprehensive security assessments on enterprise and government systems. In this role, you will perform offensive testing while collaborating closely with defensive security teams (CEMA Resiliency System [CRS]) to translate attack findings into resilient threat detection capabilities.

This is a full-time position with the Leidos office in Lawton, OK. The position consists of developing custom exploits and automation tools based on identified vulnerabilities and collaborating with detection engineering teams to translate offensive security findings into defensive capabilities. This includes traveling to testing events to verify exploit effectiveness in operational environments and coordinating with Cyber Response System (CRS) teams to develop and validate threat detectors. The position is responsible for researching and analyzing technical documentation on assigned systems, serving as a subject matter expert on system classification guides and detection capabilities, and ensuring timely delivery of technical findings, recommendations, and after-action reports to both offensive and defensive security stakeholders. The position also includes serving as the sites technical lead, performing comprehensive penetration tests and vulnerability assessments on enterprise and government systems, including classified environments, while conducting deep-dive analysis of network protocols, cloud infrastructure, and web applications. At higher technical levels, this includes planning and identifying future testing events and opportunities to enhance organizational security posture.

Primary Responsibilities:

Develop custom exploits, payloads, and automation tools tailored to identified system vulnerabilities.
Serve as the site technical lead, executing end-to-end penetration tests and vulnerability assessments across enterprise, government, and classified environments.
Perform deep-dive analysis across network protocols, cloud infrastructure (AWS/Azure/GCP), and web applications.
Collaborate with detection engineering and CEMA Resiliency System (CRS) teams to validate, test, and improve threat detectors based on offensive tactics, techniques, and procedures (TTPs).
Travel to operational testing events to verify exploit effectiveness in real-world scenarios.
Research technical system documentation and serve as a Subject Matter Expert (SME) on system security classification guides and detection capabilities.
Author and present comprehensive technical findings, remediation recommendations, and after-action reports for both technical staff and executive stakeholders.
Support long-term operational planning by identifying future test opportunities to strengthen organizational security posture.

Basic Qualifications:

Bachelor’s degree in Cybersecurity, Computer Science, Computer Engineering, Electrical Engineering, or a related technical discipline with 8+ years of relevant experience; OR a Master’s degree with 6+ years of experience; OR an additional 4 years of related experience in lieu of a degree (12+ years total).
8+ years of dedicated hands-on experience in penetration testing, red teaming, or offensive security operations.
Proficiency with Linux distributions (e.g., Kali, Parrot) and Windows operating systems at an administrative/deep-system level.
Demonstrated scripting and development capability using languages such as Python, Bash, or PowerShell for tool automation and exploit modification.
Strong understanding of networking concepts, TCP/IP architecture, and security protocols.
Must be a US Citizen and be able to obtain and maintain an active Top Secret / Sensitive Compartmented Information (TS/SCI) security clearance.
Willingness to work on-site in Lawton, OK (or relocate prior to start date) and travel to testing events as required.

Preferred Technical Qualifications:

Offensive Security Certifications: OSCP, GPEN, GWAPT, CPTS, or GXPN
Defense & Detection: Experience in Detection Engineering, SOC operations, threat hunting, or utilizing frameworks like MITRE ATT&CK.
Cloud & Modern Tech: Experience evaluating cloud environments (AWS, Azure, GCP) using assessment tools (e.g., ScoutSuite, Pacu, Prowler).
Reverse Engineering / Low-Level: Experience with binary analysis, disassembly, and reverse engineering.
DevSecOps & Collaboration: Familiarity with Git version control, CI/CD pipelines, and Agile workflows.

Professional Experience:

Government/Defense Experience: Prior background working within DoD or classified environments with a solid grasp of classification markings and handling procedures.
Strong written and verbal communication skills for technical documentation and executive reporting
Ability to translate complex technical findings into actionable recommendations for diverse audiences
Experience presenting security findings to both technical teams and executive leadership
Proven ability to collaborate across offensive and defensive security teams

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

October 29, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission (https://reportfraud.ftc.gov/#/) .

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

REQNUMBER: R-00195846

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.

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More about this job

Skills

CRS
Documentation
AWS
Microsoft Azure
Google Cloud
Research
Cybersecurity
Computer science
Computer engineering
Electrical engineering
Penetration testing
Linux
Microsoft Windows
Python
Bash
Microsoft PowerShell
MITRE ATT&CK
Reverse engineering
Collaboration
Git
CI/CD
Agile
Communication skills
Reporting

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