Senior Penetration Tester — Web, App & Cloud Security

Triskele Labs; City of Melbourne; Hybrid; AUD 120,000 - 160,000; Full time

Benefits offered by this job

Training and development

Employee Assistance Program (EAP)

Team social functions

Melbourne CBD office

Salary packaging options

Job summary

Triskele Labs is seeking an experienced Offensive Security Consultant to join our Offensive Security practice in Melbourne. You will deliver end-to-end penetration testing across web, mobile, APIs, infrastructure, cloud environments, and AI/LLM systems, following established methodologies and industry frameworks.

You will manage client communication and produce reports that are accurate and useful to technical and executive audiences, with hybrid working arrangements and a focus on technical

Qualifications

• 2+ years pen testing in a consulting or professional services environment.
• OSCP certification or equivalent hands-on offensive security cert.
• Demonstrated capability across at least three service streams (e.g., app testing, infra, cloud, social engineering).
• Proficiency with at least one scripting language.
• Strong knowledge of networking, Windows and Linux, and enterprise security controls.
• Ability to produce client-ready reports with minimal revision.
• tertiary qualification in information security or related IT field, or demonstrable equivalent experience.
• Full Australian working rights.
• Willingness to undergo police checks and obtain security clearance when required.

Responsibilities

• Execute penetration tests across web, mobile, APIs, internal and external infrastructure, cloud environments, and wireless networks.
• Contribute to red team, purple team, adversary simulation, and social engineering engagements.
• Produce comprehensive engagement reports detailing vulnerabilities, impact, technical detail, risk ratings, remediation complexity, and recommendations.
• Contribute to testing methodologies, SOPs, and internal tooling improvements.
• Maintain current knowledge of threats, tooling, standards, and frameworks.

Skills

Penetration testing

OSCP cert

Multi-service testing

Scripting languages

Networking, Windows, Linux

Report writing

InfoSec degree

Australian work rights

Police checks/clearance

Education

InfoSec degree or equivalent

Job description

Triskele Labs is seeking an experienced Offensive Security Consultant to join our Offensive Security practice in Melbourne. You will deliver end-to-end penetration testing across web, mobile, APIs, infrastructure, cloud environments, and AI/LLM systems, following established methodologies and industry frameworks.

You will manage client communication and produce reports that are accurate and useful to technical and executive audiences, with hybrid working arrangements and a focus on technical