Jobs in the United States

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Added 1 min ago
Software Engineer II (Backend)
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 a Software Engineer II (Backend) based in United States .
Added 1 min ago
Forward Deployment (FD) Agentic Solutions Consultant - Sales
Jobgether
Remote, United States
At least 2 years of experience designing, building, or managing AI and automation solutions in roles such as Product Manager, Solutions Engineer, Sales Engineer, or Consultant.
Added 1 min ago
Director of Business Development - Clean Energy
Jobgether
Remote, United States
Relevant industry certifications are preferred, including Professional Engineer (PE), Certified Energy Manager (CEM), Certified Energy Auditor (CEA), Certified Measurement & Verification…
Added 6 mins ago
Staff Software Engineer
BitSight Technologies
Boston, MA
Seven (7) years of experience as a Software Engineer building and maintaining a SaaS application.
Added 10 mins ago
Filling & Packing Engineer
Nestle Operational Services Worldwide SA
Ponda, IN
The wrapping Engineer is responsible to ensure low cost, highly efficient and sustained operational performance of the lines. He also ensures high asset reliability by applying appropriate…
Added 10 mins ago
Engineering Development Program, Test Equipment Design, Engineer I (Onsite)
RTX
United States
RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to…
Added 11 mins ago
Data Architect
Clarkston Consulting
Raleigh, NC · Dallas, TX · Atlanta, GA
Significant experience in work as an engineer or technical subject matter expert in two or more of the following areas: infrastructure; data; application; and/or security related technology
Added 18 mins ago
Software Development Engineer - Distributed Services, Hadrian
Amazon.com Services LLC
Seattle, WA
…shopping experience. We are looking for a Software Development Engineer (SDE) to shape that…
Added 22 mins ago
Senior Engineer, Applied AI & Build Standards
Best Buy
Richfield, MN
As a Senior Engineer on Best Buy’s Applied AI & Build Standards team, you will help AI agents work safely alongside our employees as trusted, accountable participants. You’ll build two…
Added 22 mins ago
Staff Engineer, Applied AI & Build Standards
Best Buy
Richfield, MN
As a Staff Engineer on Best Buy’s Applied AI & Build Standards team, you'll develop evaluation frameworks, quality standards and release controls that ensure agents perform safely and…
Added 29 mins ago
Civil Engineer I- Regional Systems
Oakland County
Waterford, MI
Are you an early-career engineer looking to build hands-on experience in infrastructure management, water and wastewater systems, and engineering data analysis? In this role, you’ll work…
Added 31 mins ago
Staff Engineer, Machine Learning & Data Infrastructure
OKX
San Jose, CA
We are looking for an experienced engineer to lead the architecture and hands-on development of the ML and data infrastructure behind our risk and fraud prevention systems. You will help…
Added 32 mins ago
Senior Network Services Engineer, Oracle Health
Oracle
Nashville, TN
Collaborate across teams. Coordinate assigned work with infrastructure, security, SRE, platform, application, and vendor teams. Share knowledge and seek senior engineering guidance when…
Added 33 mins ago
Staff Software Engineer - Builder Platform
Jobgether
Remote, United States
…and next steps. Our partner is looking for a Staff Software Engineer – Builder Platform based in United…
Added 33 mins ago
Senior Staff Software Engineer - Builder Platform
Jobgether
Remote, United States
…next steps. Our partner is looking for a Senior Staff Software Engineer – Builder Platform based in United…
Added 33 mins ago
J
Senior Advanced IT Network Site Reliability Engineer
Jobgether
Remote, United States
- $139,851 to $151,324 USD / year
…is looking for a Senior Advanced IT Network Site Reliability Engineer based in the United…
Added 33 mins ago
J
Project Engineer - Dams, Hydraulics & Water Resources
Jobgether
Remote, United States
- $95,000 to $150,000 USD / year
…applications and next steps. Our partner is looking for a Project Engineer - Dams, Hydraulics & Water Resources based in the United…
Added 33 mins ago
J
Electrical Engineer (Control Systems)
Jobgether
Remote, United States
- $100,000 to $120,000 CAD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Electrical Engineer (Control Systems) based in Canada.
Added 36 mins ago
Guidance and Control Systems Engineer II
California Institute Of Technology Jet Propulsion Laboratory
United States
As a Guidance and Control System Engineer in the Guidance, and Control Systems Engineering Group, you will be working for JPL’s Guidance and Control Section. We do system engineering,…
Added 46 mins ago
Senior Product Test Engineer, Intel Systems Manufacturing
Anduril Industries
Santa Ana, CA
We are looking to bring in a Senior Product Test Engineer to support our test equipment deployment to various manufacturing and contract manufacturing sites and support in identifying…
Added 46 mins ago
Product Test Engineer, Intel Systems Manufacturing
Anduril Industries
Santa Ana, CA
We are looking to bring in a Product Test Engineer to support our test equipment deployment to various manufacturing and contract manufacturing sites and support in identifying testing…
Added 48 mins ago
Principal Offensive Security Engineer
Alteryx, Inc.
Remote, United States
Alteryx is searching for a Principal Offensive Security Engineer in the United States. Join a team that values diverse perspectives, technical curiosity, and collaboration to improve the…
Added 48 mins ago
Microsoft Infrastructure Support Engineer
CDW Technologies, LLC
Remote, United States
…This role operates in a reactive break/fix support model. The Engineer works directly with multiple customers in a fast-paced, case-based environment to assess issues, troubleshoot root…
Added 49 mins ago
BH
DevOps Engineer IV
Banner Health
Remote, United States
- $54.7 to $91.16 USD / hour
As a DevOps Engineer IV within Banner Plans & Networks (BPN) Information Technology, you will play a critical role in maintaining and advancing the technology platforms that support…
Added 49 mins ago
SUPERVISORY INTERDISCIPLINARY
U.S. Army Cyber Command
Fort Huachuca, AZ
…must submit documents verifying your eligibility with your application package. In order to qualify, you must meet the education/experience requirements described below. Experience refers…

Core4ce Careers

F5 Advanced Web Application Firewall Engineer

Remote, United States

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Job details

Posting language: English

Original job description

Core4ce is seeking an experienced F5 Advanced Web Application Firewall (AWAF) Engineer to support the secure operation of enterprise web applications and application programming interfaces (APIs).

The successful candidate will work closely with the cybersecurity team to define WAF policy baselines for individual systems and applications. This individual will collaborate with system owners, application teams, and infrastructure personnel to validate expected application behavior, tune policies, reduce false positives, and maintain effective security enforcement.

The role will also support application security alert-response activities by analyzing WAF events, identifying potentially malicious activity, coordinating with appropriate stakeholders, and assisting with investigation, documentation, and mitigation.

Responsibilities:

WAF Policy Engineering and Administration

Design, configure, implement, and maintain F5 Advanced WAF/ASM policies for enterprise web applications and APIs.
Develop application-specific WAF policy baselines based on application architecture, functionality, data sensitivity, business risk, and security requirements.
Work with the cybersecurity team to establish repeatable WAF standards, policy-development procedures, and enforcement criteria.
Onboard new applications and services into the F5 WAF environment.
Configure and maintain protections for common web application and API attacks, including:
OWASP Top 10 threats
Signature-based attack detection
Protocol violations
Malicious file and payload types
Evasion techniques
Parameter and URL violations
Cookie and session-related attacks
API and JSON/XML security controls, where applicable
Review learning suggestions, traffic behavior, violations, and policy recommendations.
Move policies through appropriate staging, transparent, and blocking or enforcement modes.
Create, test, document, and maintain appropriate policy exceptions and trusted traffic controls.
Apply policy changes in accordance with change-management and cybersecurity procedures.

Policy Tuning and System Owner Collaboration

Partner with system owners, application developers, and infrastructure teams to understand legitimate application behavior.
Tune WAF policies to protect applications while maintaining availability and operational performance.
Investigate false positives and determine whether blocked or flagged requests represent legitimate business activity, application defects, or malicious behavior.
Recommend corrective actions for application issues identified through WAF policy analysis.
Review policy effectiveness and make improvements based on application changes, threat intelligence, vulnerability assessments, and observed attack patterns.
Maintain clear documentation of application-specific requirements, policy decisions, exceptions, and tuning activities.

Alert Analysis and Incident Support

Monitor and analyze WAF violations, security events, blocked requests, and anomalous traffic.
Assist the cybersecurity team with alert triage and response activities.
Investigate suspected attacks, including SQL injection, cross-site scripting, command injection, path traversal, protocol abuse, automated attacks, and other web-based threats.
Correlate WAF events with application, network, endpoint, and security-monitoring data when necessary.
Validate suspicious activity with system owners and other technical stakeholders.
Escalate significant or confirmed events in accordance with incident-response procedures.
Support containment, mitigation, and follow-up actions, including temporary policy changes or blocking controls when appropriate.
Prepare incident summaries, technical findings, and recommendations for remediation.
Identify recurring attack patterns and recommend improvements to WAF policies and broader security controls.

This position is designed to be flexible, with responsibilities evolving to meet business needs and enable individual growth.

Requirements:

U.S. Citizen
Ability to obtain and maintain an active Secret security clearance.
Bachelor’s degree in cybersecurity, computer science, information technology, or a related technical field, or equivalent practical experience.
Minimum of 5 years of experience in cybersecurity, network security, application security, or a related field.
Minimum of 3 years of hands-on experience with F5 Advanced WAF, F5 ASM, or a comparable enterprise WAF platform.
Demonstrated experience developing, deploying, administering, and tuning F5 WAF policies.
Experience establishing application-specific WAF policy baselines and enforcement requirements.
Experience working directly with application owners, developers, and infrastructure teams to analyze application behavior and resolve false positives.
Experience analyzing WAF logs, violations, security events, and blocked traffic.
Working knowledge of web application and API security concepts, including:
HTTP and HTTPS
TLS
HTTP methods, headers, cookies, and sessions
URLs, parameters, and payloads
JSON and XML
REST APIs
Authentication and authorization
Strong knowledge of common web application vulnerabilities and attack techniques, including the OWASP Top 10.
Experience assisting with cybersecurity alert triage, incident investigation, or incident-response activities.
Ability to document technical findings, policy decisions, exceptions, and recommended actions.
Excellent written and verbal communication skills.

Preferred Qualifications:

F5 Certified Technology Specialist certification or equivalent F5 AWAF/ASM experience.
Experience with F5 BIG-IP administration and related technologies, including LTM, APM, iRules, Local Traffic Policies, and SSL profiles.
Experience protecting APIs, microservices, cloud-hosted applications, and distributed application architectures.
Experience with F5 WAF policy automation, REST APIs, configuration management, or infrastructure-as-code.
Experience integrating F5 WAF with SIEM, SOAR, ticketing, or security orchestration platforms.
Familiarity with F5 WAF event logging, reporting, and analytics capabilities.
Experience using Splunk, Microsoft Sentinel, or comparable security-monitoring platforms.
Familiarity with vulnerability scanners and application-security testing tools.
Experience supporting penetration tests and validating application-security remediation.
Knowledge of secure software development practices and common application deployment methods.
Familiarity with NIST, DoD, FedRAMP, FISMA, or other applicable cybersecurity frameworks and controls.
Experience working in a federal, DoD, healthcare, or other regulated environment.
Security+ CE or another applicable DoD 8570/8140 baseline certification.

Why Work for Us?

Core4ce is a team of innovators, self-starters, and critical thinkers - driven by a shared mission to strengthen national security and advance warfighting outcomes.

We offer:

401(k) with 100% company match on the first 6% deferred, with immediate vesting
Comprehensive medical, dental, and vision coverage - employee portion paid 100% by Core4ce
Unlimited access to training and certifications, with no pre-set cap on eligible professional development
Tuition assistance for job-related degrees and courses
Paid parental leave, PTO that grows with tenure, and generous holiday schedules
Got a big idea? At Core4ce, The Forge gives every employee the chance to propose bold innovations and help bring them to life with internal backing.

Join us to build a career that matters - supported by a company that invests in you.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), national origin, disability, veteran status, age, genetic information, or other legally protected status.

*Core4ce provides the listed pay range for this position as a general guideline only and not as a guarantee of compensation or salary. Final offers may take into account a variety of factors, including, but not limited to, job responsibilities, education, experience, knowledge, skills, abilities, internal equity, market data alignment, any applicable collective bargaining agreement, and other legal requirements.

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