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Added 2 mins ago
WW
Associate Engineer - Infrastructure & Integrations Support
World Wide Technology
Maryland Heights, MO
- $73,200 to $91,500 USD / year
We are seeking a motivated Associate Engineer to support enterprise infrastructure, integration applications, and automation initiatives. The ideal candidate will have hands-on experience…
Added 15 mins ago
Sr. Security Engineer
Jobgether
Remote, United States
We are looking for a hands-on Senior Security Engineer to strengthen and manage the security infrastructure protecting enterprise systems, employees, and endpoints. In this role, you will…
Added 15 mins ago
J
Senior Software Engineer, Secret Scanning
Jobgether
Remote, United States
- $127,800 to $339,000 USD / year
…and next steps. Our partner is looking for a Senior Software Engineer, Secret Scanning based in the United…
Added 15 mins ago
J
Senior Analytics Engineer
Jobgether
Remote, United States
- $155,000 to $170,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Analytics Engineer based in the United States.
Added 15 mins ago
Implementation Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Implementation Engineer based in the United States.
Added 19 mins ago
AI Engineer
Awesome Motive
Remote, United States
As an AI Engineer, you're responsible for designing, building, and shipping AI systems that real people use, from AI features inside products used on over 30 million websites to internal…
Added 23 mins ago
Senior Modem Hardware Design
Qualcomm, Inc.
Boxborough, MA
We are seeking a highly skilled Modem Hardware Design Verification Engineer to join our advanced verification organization, focused on AIdriven verification methodologies and nextgeneration…
Added 23 mins ago
Data Engineer
Digital Federal Credit Union
Chelmsford, MA
- Knowledge and practical application of Python
Added 23 mins ago
Data Engineer
Digital Federal Credit Union
Marlborough, MA
- Knowledge and practical application of Python
Added 31 mins ago
Computer System Analyst/Engineer
Southern Company
Birmingham, AL
Understanding of computer hardware including physical/virtual servers, desktop maintenance, network and security concepts, and application support.
Added 31 mins ago
Computer Systems Analyst/Engineer – Ansible System Admin
Southern Company
Birmingham, AL · Atlanta, GA
Understanding of computer hardware including physical/virtual servers, desktop maintenance, network and security concepts, and application support.
Added 46 mins ago
J
Senior Software Engineer
Jobgether
Remote, United States
- $170,000 to $200,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer based in the United States.
Added 46 mins ago
J
Senior Backend Cloud Engineer
Jobgether
Remote, United States
- $120,000 to $170,000 USD / year
This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Backend Cloud Engineer based in the United States.
Added 1 hour ago
Senior/Staff Software Engineer, CAD Integrations
Jobgether
Remote, United States
…next steps. Our partner is looking for a Senior/Staff Software Engineer, CAD Integrations based in the United…
Added 1 hour ago
TT
Senior Full Stack Engineer
True Talent Solutions Partners
Boston, MA
- $185,000 to $210,000 USD / year
…conditions. As a senior individual contributor and product-minded engineer, you will help shape the product and engineering practices while delivering patient-centered…
Added 1 hour ago
AWS Cloud Engineer IV
IGH ICW GROUP HOLDINGS, INC.
San Diego, CA
The purpose of the AWS Cloud Engineer IV is to design, implement, and maintain cloud infrastructure systems using Amazon Web Services (AWS). This position will play a crucial role in…
Added 2 hours ago
Ground Software DevOps Release Engineer III (TS/SCI Required) - Blue Ring
Blue Origin Personnel, LLC
Denver, CO · Reston, VA
…space missions and advancing ground capabilities. The DevSecOps Engineer will bridge the gap between development, security, and operations. In this role, you will own the end-to-end…
Added 2 hours ago
Senior Linux System Administrator - 306502
Delaware Nation Industries
Dahlgren, VA
Administer, engineer, optimize, and maintain enterprise Linux systems and services across multiple security levels and operational environments.
Added 2 hours ago
J
Senior QA/SDET
Jobgether
Remote, United States
- $180,000 to $210,000 USD / year
6+ years of experience in software quality engineering, including at least 3 years as an SDET or test automation engineer within a software engineering organization.
Added 3 hours ago
Sr. Forward Deployed Engineer (FDE)
PVM, Inc.
Arlington, VA
As a Senior Forward Deployed Engineer (FDE), you will contribute directly to the development and delivery of Army Vantage capabilities. You will build analytical dashboard features, support…
Added 4 hours ago
PKI Engineer, Senior
BOOZ, ALLEN & HAMILTON, INC.
Laurel, MD
As an Identity and Access Management ( IAM ) engineer at Booz Allen, you'll play a critical role in the world of IAM and Zero T rus t. In this role, you'll support large-scale PKI projects…
Added 5 hours ago
Electrical Hardware Engineer Intern
Hewlett Packard Enterprise
Sunnyvale, CA
Experience with Python, Tcl, Unix Shell, or other scripting languages
Added 5 hours ago
Graduate Development Program, Associate Technology Engineer, Technology Engineering
natgridProd
Northboro, MA · Buffalo, NY · Syracuse, NY · Waltham, MA
Are you ready to build technology that supports the future of energy? As an Associate Technology Engineer on the Technology Engineering team, you’ll help develop data and AI solutions that…
Added 5 hours ago
Graduate Development Program, Associate Analyst, Technology Security
natgridProd
Brooklyn, NY · Syracuse, NY · Waltham, MA
Exposure to scripting or programming languages such as Python, Bash, Perl, R, Java, or C++.
Added 5 hours ago
Graduate Development Program, Associate Engineer, Software Engineering
natgridProd
Syracuse, NY · Brooklyn, NY · Waltham, MA
Are you ready to build software that helps support National Grid’s Gas business? As an Associate Software Engineer, you’ll join the team responsible for the development and support of the…

Closed listing

Optiv Federal Inc.

Tenable Engineer - Secret | DC Metro

Washington, DC, United States

This opening has closed.

The original listing is kept below for reference.

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About employer

Job details

Experience: At least 5 years of relevant cybersecurity engineering, security operations, network-security, threat-detection, incident-response, or security-platform administration experience.
Posting language: English
Posted: Oct 29, 2026

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Original job description

Archived listing. The details below describe a past opening.

Optiv + ClearShark is looking for a Tenable Cybersecurity Engineer is responsible for the design, deployment, configuration, integration, tuning, and operational support of Tenable capabilities across enterprise networks, endpoints, email, cloud, SaaS, identity, and other supported environments. The engineer will work closely with security operations, network engineering, cloud engineering, identity, incident response, and customer stakeholders to improve threat detection, investigation, and response. This position requires a technically strong cybersecurity professional with experience in network detection and response, security monitoring, incident triage, packet and log analysis, security-tool integration, and operational security engineering. The successful candidate will be comfortable working in regulated or federal environments and will translate Tenable detections, behavioral analytics, and AI-assisted investigations into actionable security outcomes. Tenable capabilities may encompass network, endpoint, email, cloud, SaaS, and identity telemetry, with AI-assisted investigation workflows and integrations to SIEM, SOAR, EDR/XDR, cloud, and log-management technologies.

How you’ll make an impact

Design, deploy, configure, administer, and maintain Tenable platform components within on-premises, hybrid-cloud, and cloud-hosted enterprise environments.
Configure and tune Tenable detections, behavioral models, alerting thresholds, autonomous-response policies, and investigative workflows to align with the organization’s threat model, risk tolerance, architecture, and security operations processes.
Lead or support implementation of applicable Tenable capabilities, including network, email, endpoint, cloud, SaaS, and identity-security use cases.
Perform ongoing platform health checks, capacity planning, sensor or collector placement assessments, system upgrades, configuration validation, and technical troubleshooting.
Analyze Tenable model breaches, alerts, anomalies, incident investigations, device behavior, network traffic, and related security telemetry to identify malicious activity, suspicious behavior, false positives, and opportunities for tuning.
Collaborate with SOC analysts, incident responders, threat hunters, network engineers, cloud teams, system administrators, and identity teams to investigate and contain security events.
Develop and maintain use cases for threat detection, triage, investigation, enrichment, and escalation across enterprise security domains.
Configure, test, and maintain integrations between Tenable and enterprise security technologies, including SIEM, SOAR, EDR/XDR, ticketing, vulnerability-management, threat-intelligence, identity, cloud-security, and log-management platforms.
Use APIs, syslog, webhooks, automation, and scripting to exchange security events, enrich detections, automate workflows, and support incident-response processes.
Support security monitoring and incident-response activities by providing deep technical analysis of network, endpoint, email, cloud, SaaS, and identity-related telemetry.
Develop standard operating procedures, implementation guides, architecture diagrams, operational runbooks, escalation procedures, and knowledge-base articles.
Produce clear technical reports and briefings that describe detected activity, risk, root cause, response actions, platform health, tuning recommendations, and security trends.
Participate in security architecture reviews and advise stakeholders on telemetry coverage, sensor placement, segmentation, visibility gaps, logging requirements, and detection strategy.
Support validation of Tenable response actions and ensure automated or semi-automated response capabilities are appropriately governed, tested, approved, and documented before production use.
Maintain awareness of emerging threats, attacker techniques, security-tool capabilities, AI-assisted defense concepts, and relevant MITRE ATT&CK techniques.
Support compliance and audit activities by maintaining security documentation, evidence, configuration records, operating procedures, and implementation artifacts required for the environment.

What we’re looking for

Active Secret clearance required at time of hire.
Bachelor’s degree in cybersecurity, information technology, computer science, engineering, or a related discipline; equivalent combination of education, military training, certifications, and relevant experience may be considered.
At least 5 years of relevant cybersecurity engineering, security operations, network-security, threat-detection, incident-response, or security-platform administration experience.
At least 5 years of experience with Tenable or comparable technologies in one or more of the following categories: Network Detection and Response (NDR), Extended Detection and Response (XDR), Endpoint Detection and Response (EDR), Network Security Monitoring (NSM), Security Information and Event Management (SIEM), User and Entity Behavior Analytics (UEBA), Security Orchestration, Automation, and Response (SOAR)
Email security, cloud security, or identity-threat detection.
Demonstrated hands-on experience deploying, configuring, tuning, administering, and troubleshooting Tenable or similar enterprise cybersecurity platforms.
Strong knowledge of enterprise networking and network-security concepts, including TCP/IP, OSI model, DNS, DHCP, HTTP/S, SMTP, TLS, VPNs, routing, switching, VLANs, firewalls, proxies, network segmentation, and packet capture/analysis.
Experience analyzing network traffic, packet captures, security logs, endpoint telemetry, authentication events, and cloud audit data to support incident detection and investigation.
Experience with security operations processes, including alert triage, investigation, threat hunting, incident escalation, containment, evidence collection, reporting, and post-incident lessons learned.
Experience integrating security tools with SIEM and SOAR platforms, such as Microsoft Sentinel, Splunk, IBM QRadar, Elastic, ServiceNow, Microsoft Defender, Palo Alto Cortex XSOAR, or similar platforms.
Working knowledge of API-based integrations, REST APIs, JSON, webhooks, syslog, authentication methods, and log-forwarding concepts.
Experience with Linux administration and command-line troubleshooting; familiarity with virtual machines, virtualization platforms, and common enterprise operating systems.
Ability to develop basic automation or integration scripts using Python, PowerShell, Bash, or a comparable scripting language.
Strong written and verbal communication skills, including the ability to document technical designs, explain investigation findings, and brief technical and nontechnical stakeholders.
Current Tenable certification
Experience with Tenable / NETWORK, / EMAIL, / ENDPOINT, / CLOUD, and / IDENTITY; Cyber AI Analyst investigations; Threat Visualizer; and autonomous-response capabilities and policy governance.
Experience with Microsoft security technologies, including Microsoft Defender XDR, Microsoft Defender for Endpoint, Defender for Office 365, Entra ID, Microsoft Sentinel, Azure, and Microsoft 365.
Experience with cloud-security monitoring and engineering in AWS, Azure, Azure Government, AWS GovCloud, Google Cloud Platform, or hybrid-cloud environments.
Familiarity with identity-security technologies and authentication telemetry, including Active Directory, Microsoft Entra ID, privileged access management, SSO, MFA, federation, conditional access, and identity threat detection.
Experience working in Department of Defense, intelligence community, federal civilian, defense-industrial-base, or other regulated environments.
Knowledge of NIST RMF, NIST SP 800-53, NIST SP 800-171, NIST Cybersecurity Framework, DoD STIGs, CMMC, FedRAMP, FISMA, DFARS, or other federal cybersecurity requirements.
Experience supporting classified, air-gapped, disconnected, constrained-connectivity, or highly segmented environments.
Familiarity with the MITRE ATT&CK framework, cyber threat intelligence, threat hunting methodologies, intrusion analysis, and adversary tactics, techniques, and procedures.
Relevant certifications such as CISSP, CISM, Security+, CySA+, CEH, GCIH, GCIA, GCED, CCNA, CCNP, PCNSE, AWS Security Specialty, Azure Security Engineer Associate, SC-200, SC-100, Splunk Core Certified Power User, or comparable credentials.
Strong analytical judgment and ability to distinguish normal business activity from potentially malicious or anomalous behavior.
Ability to explain AI-assisted or behavior-based detections in understandable operational and risk-based terms.
Ability to work independently while coordinating effectively across SOC, infrastructure, cloud, identity, network, and leadership stakeholders.
Strong attention to detail in configuration management, change control, evidence collection, documentation, and production implementation.
Ability to manage competing priorities, support time-sensitive incidents, and maintain disciplined escalation procedures.
Commitment to secure engineering, operational rigor, continuous improvement, and customer mission success.

What you can expect from Optiv

Work/life balance
Professional training resources
Creative problem-solving and the ability to tackle unique, complex projects
Volunteer Opportunities. “Optiv Chips In” encourages employees to volunteer and engage with their teams and communities.
The ability and technology necessary to productively work remotely/from home (where applicable)

EEO Statement Optiv + ClearShark is an equal opportunity employer. All qualified applicants for employment will be considered without regard to race, color, religion, sex, gender identity or expression, sexual orientation, pregnancy, age 40 and over, marital status, genetic information, national origin, status as an individual with a disability, military or veteran status, or any other basis protected by federal, state, or local law.

Optiv + ClearShark respects your privacy. By providing your information through this page or applying for a job at Optiv + ClearShark, you acknowledge that Optiv + ClearShark will collect, use, and process your information, which may include personal information and sensitive personal information, in connection with Optiv + ClearShark’s selection and recruitment activities. For additional details on how Optiv + ClearShark uses and protects your personal information in the application process, click here to view our Applicant Privacy Notice. If you sign up to receive notifications of job postings, you may unsubscribe at any time.

About employer

More about this job

Skills

Cybersecurity
Incident response
Troubleshooting
MITRE ATT&CK
Regulatory compliance
Documentation
Computer technology
Computer science
Military drill
NDR
Event planning
DNS
DHCP
SMTP
Reporting
Splunk
ServiceNow
API development
Linux
Python
Microsoft PowerShell
Bash
Communication skills
Microsoft 365
Microsoft Azure
AWS
Google Cloud
Microsoft Active Directory
CISSP
CISM
Security+
CCNA
CCNP
Work independently
Leadership
Attention to detail
Process improvement
Problem solving

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