Application Security Engineer

• 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
• 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

• 401K Plan: Sonar US matches up to 4% of gross salary
• 90% healthcare premium coverage for employees, 60% for dependents
• Life and disability insurances fully paid by Sonar. Sonar covers 100% of Telemedicine for FTE whom are covered by Sonar medical
• EAP (Employee Assistance Program) Health Savings Accounts (HSA, FSA, DCFSA). Supplemental coverage is offered by EE’s expense
• Pet Insurance
• Hospital Indemnity, Accident, Critical Illness
• Time Off: 25 PTO days plus additional days based on seniority and circumstances
• Commuting: Public transport reimbursement of 60% for annual subscription
• Free parking space
• Pension: Sonar UK contributes 50% of the total costs, which amounts to 5% of your gross salary for saving. Employees contribute the other 5%
• Flexibility to work from home 2 days a week on Wednesdays and Fridays
• Health Insurance: Sonar covers 100% of the employee premiums for medical, dental, and EAP (Employee Assistance Program) plans through BUPA
• Time Off: 28 PTO days, plus additional days based on seniority and circumstances
• Commuting: we will reimburse 60% towards the cost of an annual public transport pass- Experience applying threat-modeling approaches, such as STRIDE, to improve design discussions and identify risks early
• 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
• Experience assessing and securing AI and agentic AI capabilities, with the curiosity to experiment, learn, and help define emerging best practices
• Extensive experience conducting application security assessments, including code review and evaluation of authentication and authorization designs
• Experience with penetration testing, red-team engagements, and bug-bounty programs, with an attacker mindset focused on protecting what matters most
• Threat awareness and security automation
• Security assurance and remediation
• Secure product and cloud architecture
• Extensive experience with application and cloud architectures, predominantly AWS, and a strong interest in how modern cloud patterns can strengthen or weaken security
• Experience investigating and managing vulnerabilities, from triage and prioritization through to remediation and organizational learning
• Familiarity with Azure, GCP, and Google Workspace is a plus, as is the appetite to learn new platforms and ecosystems as Sonar evolves