WebApp Offensive Security Software Engineer

New

Horizon3Cybersecurity

US, RemoteFull-TimeSenior

SalaryBase salary range: $196,000 - $242,000.

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Job Details

Experience conducting full scope web application pentests.
Proficiency with proxy tools (e.g., Burp) and browser developer tools.
Proficient in object-oriented programming and test-driven development.
Strong analytical and problem-solving skills.
Experience applying AI-assisted development tools to security research and automation tasks.
Skilled in designing, evaluating, and communicating technical solutions across systems, APIs, algorithms, and data structures.
Familiarity with relational and graph databases (Postgres and Neo4j).
Strong written and verbal communication skills.
Proven history of recognized security research (e.g., CVE discoveries).
Track record of successful bug bounty contributions.
Ability to work independently and mentor teammates.

Perform hands-on, full-scope web application penetration tests against real customer applications, benchmark, and lab targets.
Review NodeZero results on live customer engagements to identify coverage gaps, blind spots, and missed opportunities.
Manually reproduce and validate edge cases, building production-safe proof-of-concept exploits and test cases.
Partner with software engineers to translate findings into product improvements, defining detection logic and remediation.
Build and maintain a library of regression and benchmark test cases.
Monitor production pentests for missed findings and false positives; manage resolution via Jira.
Work directly with customers and internal teams to explain attack paths and coverage results.
Author technical blog posts and research write-ups on new exploits and methodologies.
Mentor teammates and contribute to the continuous improvement of team processes and testing standards.

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