Lead Application Security Engineer

Position Purpose

We are seeking an experienced Application Security Engineering Lead to lead secure design and implementation initiatives across our engineering organization. This individual will work closely with application, infrastructure, and DevOps teams to embed security into every layer of our software lifecycle and runtime environments.

Location: Austin, TX based preferred, remote considered

About Us

With more than 1,000 market center offices and 162,000 agents, Keller Williams is the world's largest real estate franchise by agent count. The franchise is No. 1 in units and sales volume in the U.S. Since 1983, the company has cultivated an agent-centric, technology-driven, and training-based culture, and has consistently won awards as Best Companies to Work for in Texas, Top Work-Life Balance Company, America's Best Employers for Diversity, Best Employers for Women, and America's Most Innovative Companies. If you want to be a part of an award-winning team that fosters innovation, focuses on people and service, and where you can make a difference, then Keller Williams is the place for you.

Keller Williams Recognition in 2024:

• Glassdoor "Best Places to Work 2024"
• 2024 Best Place for Working Parents
• Entrepreneur "2024 Franchise 500 Hall of Fame"
• Franchise Business Review "2024 Top Franchise for Women"
• Realtor Mag "2024 NAR 30 under 30"
• Franchise Business Review "Culture 100"

The Impact You'll Make

• Lead the design and implementation of secure application architectures
• Perform and guide threat modeling, architecture risk reviews, and security assessments
• Embed security practices into the SDLC, CI/CD pipelines, and DevOps toolchains
• Integrate and manage vulnerability scanning using Snyk (SAST, SCA, containers, IaC)
• Build and secure deployment pipelines using Harness
• Design and manage IAM solutions with PingOne (OIDC, SAML, MFA)
• Oversee runtime observability and security monitoring with Datadog
• Strengthen and configure email security (SPF, DKIM, DMARC, anti-phishing) including tools like Mailgun
• Implement or integrate with platforms such as Rapid7 for centralized logging, alerting, and incident investigation
• Apply MITRE ATT&CK for detection engineering and defensive architecture
• Align security programs with the NIST Cybersecurity Framework (CSF)
• Design and manage Web Application Firewalls (WAFs) including Cloudflare WAF and Google Cloud Armor for DDoS mitigation, bot protection, and Layer 7 filtering
• Prototype or develop security automation scripts/tools in Python, Bash, or Terraform

The Experience You'll Need

Required Qualifications:

• 10+ years in cybersecurity, with strong expertise in application security, cloud security, and DevSecOps
• Hands-on experience with:
• Snyk, Harness, Datadog, PingOne, Mailgun, Rapid7 or similar platforms
• Application security best practices (OWASP, threat modeling, secure coding)
• Email authentication and anti-abuse measures (SPF, DKIM, DMARC, anti-phishing)
• WAF deployment and tuning (Cloudflare, Cloud Armor)

• MITRE ATT&CK and NIST CSF alignment

• Strong development/scripting background (Python, Bash, Terraform)

• Proven ability to work across technical and business teams and communicate clearly

Preferred Qualifications:

• Certifications: CISSP, CSSLP, GCSA, GCP Security Engineer, or similar
• Background in software development or DevOps engineering
• Experience with Kubernetes, containers, and serverless
• Familiarity with enterprise email security tools (e.g., Proofpoint, Mimecast)
• Experience tuning and integrating SIEM for detection and response
• Deep understanding of DDoS mitigation strategies with Cloudflare/Cloud Armor

Knowledge, Skills, and Abilities

Knowledge

• Advanced knowledge and expertise in (insert specific field of expertise and any specific knowledge that the position requires)

• Advanced proficiency in Microsoft Office, including Excel, Word, and Outlook

Skills

• Advanced critical thinking and project planning skills

• Advanced data analytical skills, with strong attention to detail and accuracy

• Superior verbal, written, interpersonal, listening, and presentation communication skills

• Superior project management, time management, and organizational skills

• Superior solution and service-oriented skills, with an emphasis on collaboration, problem solving, follow-through, and responsiveness

• Superior relationship building skills, with a proactive and service-oriented approach to working with team members

Abilities

• Ability to lead projects and solve problems with minimal supervision and balance multiple projects while working constructively in a team environment

• Ability to demonstrate good judgement and effective problem-solving, with the ability to address complex issues and provide specialized solutions

• Ability to demonstrate a high degree of flexibility and adaptability

• Ability to work independently as well as in a team-oriented, collaborative environment

• Ability to demonstrate the highest level of integrity and ethics

• Ability to demonstrate a high degree of self-motivation, accountability, and work ethic

• Ability to provide strong customer service through all communication mediums

EEO Statement

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Physical Requirements

The physical demands described here are representative of those that must be met by a team member to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities as defined by the Americans with Disabilities Act As Amended to perform the essential functions.

• Sitting
• Keyboarding
• Viewing computer monitor

Work Environment

Work is performed in a business office environment. Ability to work extended hours, as required, in support of the company's business needs.

Benefits and Compensation

• Medical (including FSA and HSA options)
• Dental
• Vision
• 401k with Company Match
• Keller Williams Incentive Plan (KWIP)
• Basic Life Insurance
• Voluntary Life Insurance
• On-Demand Mental Healthcare
• Employee Assistance Program (EAP)
• Legal Services
• Pet Insurance
• Identity Theft Protection
• Paid Time Off
• Paid Holidays
• Floating Holidays