Senior Network Security Engineer - WAF & Edge Security

Are you ready to make an impact at DTCC? Do you want to work on innovative projects, collaborate with a dynamic and supportive team, and receive investment in your professional development? At DTCC, we are at the forefront of innovation in the financial markets. We're committed to helping our employees grow and succeed. We believe that you have the skills and drive to make a real impact.

We foster a thriving internal community and are committed to creating a workplace that looks like the world that we serve.

• Competitive compensation, including base pay and annual incentive
• Comprehensive health and life insurance and well-being benefits, based on location
• Pension / Retirement benefits
• Paid Time Off and Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well‑being.
• DTCC offers a flexible/hybrid model of 3 days onsite and 2 days remote (onsite Tuesdays, Wednesdays and a third day unique to each team or employee).

As a Senior Security Engineer – Network & WAF, you will serve as the hands‑on technical lead and subject‑matter expert for Akamai edge security  will own the architecture, deployment, tuning, and ongoing optimization of Akamai WAF solutions protecting DTCC's internet‑facing applications.

You will play a critical role in strengthening DTCC's Zero Trust Network Security posture, reducing application‑layer risk, improving signal quality, and ensuring secure, scalable delivery of web services in a highly regulated environment.

This role is ideal for a senior‑level engineer who thrives in deep technical ownership, complex problem‑solving, and cross‑functional collaboration.

• Lead the architecture, deployment, lifecycle management, and advanced tuning of Akamai WAF solutions to protect DTCC web applications.
• Act as the Akamai WAF technical lead and escalation point, owning policy design, staging validation, production rollout, and ongoing optimization.
• Provide expert technical guidance to Network Security Engineers across perimeter security technologies including:
  • Akamai (WAF, CDN)
  • IDS/IPS platforms (e.g., Snort, Cisco Firepower, Fire Eye)
  • Cisco Stealthwatch (SNA)
  • DLP solutions
  • Zscaler
• Partner closely with Security Architecture and the Cyber Threat Fusion Center to:
  • Identify security gaps
  • Improve existing controls
  • Design, implement, and operate new perimeter security capabilities aligned with Zero Trust principles.
• Develop and maintain security standards, policies, procedures, and technical documentation related to WAF, IDS/IPS, and network perimeter security.
• Contribute to the strategy and technical roadmap for Network Perimeter and Edge Security.
• Analyze security alerts and events, perform root‑cause analysis, and recommend effective mitigation and remediation strategies.
• Identify and drive automation opportunities to improve operational efficiency, reduce manual effort, and enhance detection and response capabilities.
• Collaborate with application, infrastructure, and cloud teams to support secure onboarding of new applications and services.

NOTE:
The Responsibilities of this role are not limited to the details above.

• Bachelor's degree and/or equivalent experience
• Minimum 8 years of Cybersecurity related experience with a strong focus on network and perimeter security

• 8+ years of hands‑on cybersecurity engineering experience, with deep expertise in Network Security and Zero Trust architectures.
• Strong, hands‑on experience with Akamai, including:
  • WAF policy design and tuning
  • CDN and edge security concepts
  • Managing false positives and rule customization
  • Experience with IDS/IPS, DLP, and secure web gateway technologies.
• Solid understanding of cloud and SaaS security controls, including Azure AD and Azure environments.
• Strong knowledge of network protocols and web architectures, including DNS, TCP/IP, HTTP/S, and firewall technologies.
• Experience working with SIEM tools, packet analysis, and security event investigation.
• Proven ability to work independently as a senior technical lead while collaborating effectively with cross‑functional…