Sr. IT Security Engineer - 1829047

Reston, VA

Tier4 Group is seeking a Sr. Security Engineer:

POSITION: Senior Security Engineer

REPORTS TO: Director, Information Security

LOCATION: Hybrid/NoVA (Herdon-area)


The Senior Security Engineer will design, install, configure, and maintain a set of security tools and serve as the Subject Matter Expertise (SME) for those security tools. The Senior Security Engineer will be focused on Application security and ensures that OF applications and services are secured, implemented with security best practices, and build monitoring capabilities. The person will collaborate with other IT teams in building secure applications and services.


• Develop and maintain software application security policies and procedures

• Implement software application security controls

• Design and implement web application firewall (WAF) capabilities

• Identify application security vulnerabilities and issues, perform risk assessments and provide mitigations

• Develop security monitoring for applications, endpoints and network

• Conduct technical investigations of application security incidents

• Interface with senior stakeholders across the IT leadership team to proactively interpret risks and priorities

• Support the diversity and inclusion strategy by following policies and procedures that ensure opportunities for employees and diverse business partners

• Assist with other job duties as assigned


• A minimum of 6 to 8 years of experience in designing, implementing and operating web application firewalls

• Hands-on experience with web application security, including OWASP Top 10 vulnerabilities

• Hands-on experience with container security and hardening container platform

• Hands-on experience with conducting web application security scans, vulnerability assessments and/or penetration testing

• Experience in investigating problems and processes within established methodologies and best practices.

• Experience working with Authentication and Authorization services like OAuth and OpenID

• Experience in operating on-prem or cloud based security platforms

• Ability to listen and integrate ideas from diverse groups of individuals, build and maintain respectful relationships, collaborate with others, and resolve conflicts constructively

• Bachelor’s Degree in Information Security or Computer Science or Computer/Electrical Engineering or equivalent field experience

• Proof of eligibility to work in the United States

Apply for this Position
Contact Info

1602 Abbey Court
Alpharetta, Georgia 30004

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