Application Security Engineer

Sonar • Austin, TX

9d • Onsite

About The Position

The primary goal of the Information Security team is to earn deep trust with our rapidly growing customer base by relentlessly safeguarding Sonar products and the supporting cloud platforms, while consistently demonstrating that Sonar meets demanding, industry‑leading security standards. You will champion security by design, partnering with product, platform, and infrastructure engineering teams so that our products and cloud platforms are imagined, built, and operated to Sonar’s high security bar.

Requirements

• Extensive experience with application and cloud architectures, predominantly AWS, and a strong interest in how modern cloud patterns can strengthen or weaken security.
• Extensive experience conducting application security assessments, including code review and evaluation of authentication and authorization designs.
• Experience assessing and securing AI and agentic AI capabilities, with the curiosity to experiment, learn, and help define emerging best practices.
• Experience applying threat-modeling approaches, such as STRIDE, to improve design discussions and identify risks early.
• Experience with penetration testing, red-team engagements, and bug-bounty programs, with an attacker mindset focused on protecting what matters most.
• Experience investigating and managing vulnerabilities, from triage and prioritization through to remediation and organizational learning.
• Practical experience using AI to automate repeatable security work, along with enthusiasm for building small tools and experiments that make security teams faster and more effective.

Nice To Haves

• Familiarity with Azure, GCP, and Google Workspace is a plus, as is the appetite to learn new platforms and ecosystems as Sonar evolves.

Responsibilities

• Shape secure products and cloud architecture: Partner with product and engineering teams from the earliest design stages to build secure, resilient solutions by design. Review product architectures and AWS environments, ensuring security requirements meaningfully inform technical decisions and final designs.
• Lead security assurance and improvement: Deliver high-impact initiatives from the strategic security plan, from evaluating new approaches to deploying modern security tools and capabilities across the organization. Plan and manage independent security assessments, penetration tests, and red-team exercises; translate findings into practical improvements and customer-facing trust artifacts. Investigate complex product and internal security findings, identify root causes, and help teams implement durable remediation.
• Strengthen customer trust and incident readiness: Lead the investigation and resolution of customer security concerns with rigor and empathy, using each engagement to reinforce confidence in our security program. Serve as a security subject-matter expert during incidents, helping teams understand, contain, and learn from emerging threats. Occasional on-call participation may be required.
• Anticipate threats and scale the security program: Monitor and interpret threat intelligence, turning changes in the threat landscape into prioritized risks and actionable recommendations. Continuously improve and automate security processes, increasing the quality, speed, and visibility of information that informs the security strategy.

Benefits

• Flexible comprehensive employee benefit package.
• 23 days of PTO per calendar year (on a pro-rated basis depending on your employment start date), with additional time provided for sickness, life events and holidays.
• An exciting 401(k) plan that has a 4% match.
• Generous discretionary Company Growth Bonus, paid annually.
• Fully paid parking in the heart of downtown Austin, Texas.
• Global workforce with employees in 20+ countries representing 35+ unique nationalities.
• Annual kick-off somewhere in the world where we meet to build relationships and goals for the company.
• Monthly catered events, and team events.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed