Senior Network Specialist

Transcend Business Solutions • Buffalo, NY, US

30+ days ago

Job type

Temporary

Job description

Job Description

Position : Senior Network Specialist

Location : Remote

Duration : 6 months plus (high probability of extension)

Start : 10 / 13

Must have 6+ years experience.

Must be US Citizen or Green Card Holder

Hospital client in Buffalo has a requirement for a Network Specialist. They must have experience with F5 WAF.

Required skills & experience : Overview : We are seeking a highly skilled, Information Security focused, F5 WAF Implementation Specialist to join our team on a temporary contract basis. The contractor will be responsible for implementing and optimizing F5 Web Application Firewall (WAF) solutions to enhance the security posture of our public-facing applications and APIs. This role is critical in mitigating common web threats, including those identified in the OWASP Top 10, while ensuring minimal disruption to business operations.

Key Responsibilities :

Lead the deployment and configuration of F5 WAF across multiple public-facing applications and APIs.
Collaborate closely with application analysts and stakeholders to understand application architecture, functionality, and traffic patterns.
Design and implement WAF policies and rules based on industry best practices and tailored to specific application needs.
Conduct impact assessments and risk analysis to ensure WAF implementation does not adversely affect application performance or availability.
Develop and execute testing plans to validate WAF configurations and ensure effective threat mitigation.
Monitor and fine-tune WAF policies post-deployment to optimize protection and minimize false positives.
Document configurations, processes, and lessons learned for knowledge transfer and future reference.
Provide guidance on WAF lifecycle management, including updates, tuning, and integration with broader security infrastructure.

F5 Qualifications :

Extensive hands-on experience with F5 WAF (ASM / Advanced WAF) in enterprise environments.

Deep understanding of web application security, including OWASP Top 10 vulnerabilities and mitigation strategies.

Proven ability to work with cross-functional teams, especially application analysts and developers.

Strong knowledge of F5 BIG-IP platform, including LTM and iRules.

Experience with change management and downtime minimization strategies.

Excellent troubleshooting, documentation, and communication skills.

Security-Focused Qualifications : 1. Knowledge of Security Frameworks & Standards :

Familiarity with NIST Cybersecurity Framework (CSF), especially the "Protect" and "Detect" functions as they relate to application security.

Understanding of MITRE ATT&CK techniques relevant to web application threats (e.g., credential access, injection, and exploitation).

Experience implementing controls aligned with ISO / IEC 27001 and CIS Controls, particularly :

CIS Control 9 : Limitation and Control of Network Ports, Protocols, and Services.

CIS Control 13 : Data Protection.

CIS Control 14 : Security Awareness and Training (for rule tuning and false positive management). 2. Threat Modeling & Rule Design :

Ability to perform threat modeling to identify potential attack vectors and inform WAF rule creation.

Experience designing custom WAF signatures and policy tuning based on application-specific threat profiles. 3. Advanced WAF Rule Management :

Proficiency in configuring F5 Advanced WAF features, such as :

Behavioral DoS protection

Bot defense

Threat campaigns

Geolocation and IP intelligence

Experience with Layer 7 DDoS mitigation and rate limiting strategies. 4. Security Logging & Monitoring Integration :

Ability to define alerting thresholds and log retention policies in accordance with compliance requirements. 5. Compliance & Regulatory Awareness :

Understanding of PCI-DSS, HIPAA, or GDPR requirements as they relate to web application security and WAF configurations. 6. Zero Trust & API Security :

Familiarity with Zero Trust Architecture principles and how WAF fits into perimeter and micro-segmentation strategies.

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Network Specialist • Buffalo, NY, US