Freelance Senior Pentester - Web, Mobile & API

Visa Hunt; Denmark; On-site; DKK 618,000 - 1,030,000; Part time

Job summary

The Cobalt Core is seeking a freelance, part-time pentester to join a skilled security testing team. You will perform manual testing of web apps, APIs, networks, and mobile apps, collaborating with clients and teammates to deliver thorough assessments.

We value deep expertise in application security, effective communication, and a professional, collaborative approach. Applicants residing in the UK, Germany, and Nordic countries are encouraged to apply; others may apply with guidance.

Qualifications

• 4+ years of pentesting or similar experience.
• Professional demeanor and collaborative spirit.
• Strong attention to detail and pride in work.
• Deep understanding of application security and ability to communicate clearly.

Responsibilities

• Perform manual penetration testing of web apps, APIs, networks, iOS and Android apps.
• Work with a pentest team and engage directly with clients.
• Document assessment results in detail.
• Validate vulnerabilities manually and test OWASP top 10.
• Leverage certifications as plus, to strengthen engagements.

Skills

Penetration testing

Application security

Communication

Collaboration

Attention to detail

Tools

CREST

PenTest+

GPEN

CEH

OSCP

AWS

CISSP

eCPPT

eWAPT

OSCE

OSWE

Job description

The Cobalt Core is seeking a freelance, part-time pentester to join a skilled security testing team. You will perform manual testing of web apps, APIs, networks, and mobile apps, collaborating with clients and teammates to deliver thorough assessments.

We value deep expertise in application security, effective communication, and a professional, collaborative approach. Applicants residing in the UK, Germany, and Nordic countries are encouraged to apply; others may apply with guidance.