CareerPlanSign in

Cobalt Core Pentester

USA💼 Full-time🗓 2026-07-29 → 2026-09-26

Core

Join a community of security professionals to perform manual penetration testing on web applications, APIs, networks, and mobile apps for various clients.

Role type

Freelance penetration tester (mid-level)

Builds

Security assessments and vulnerability reports for clients

Domain

Cybersecurity / Application Security

Deliverable

client delivery

Required skills

manual penetration testing, web application security, API security, network security, mobile app security (iOS/Android), OWASP Top 10 knowledge, vulnerability validation, technical reporting

Preferred skills

CREST, PenTest+, GPEN, CEH, OSCP, AWS, CISSP, eCPPT, eWAPT, OSCE, OSCE

Technologies

web applications, APIs, internal/external networks, iOS, Android

Responsibilities

Perform manual penetration testing of web applications, APIs, internal and external networks, and mobile applications; collaborate with clients; document assessment results; validate vulnerabilities

Seniority

Mid-level, hands-on IC

Sourced via codingjobboard · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.