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Offensive Security Engineer (Penetration Testing) | Petaling Jaya, Selangor
Offensive Security Engineer (Penetration Testing)
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Petaling Jaya , Selangor

|

Hybrid

|

Direct hire

Petaling Jaya, Selangor

|

Hybrid

|

Direct hire

Job ID 8466|Posted Nov 9, 2026
JOB DESCRIPTION

About Horizontal Talent

Established in 2003 in the US, Horizontal solves complex challenges across two distinct businesses: Horizontal Digital and Horizontal Talent. We are consistently recognized for being a top workplace and one of the fastest-growing private companies. Horizontal Talent specializes in staffing for IT, Digital & Creative, and Business & Strategy markets. We have global offices in the US, UAE, India, Malaysia, and Australia.

Job Overview

We are looking for an experienced Offensive Security Engineer to assess security effectiveness through security testing and provide assurance on the organization's overall security posture. The role focuses on identifying security vulnerabilities, conducting penetration testing, and recommending remediation measures to strengthen security across infrastructure, applications, cloud environments, and networks.

Key Responsibilities

  • Plan and execute vulnerability assessments and penetration tests against infrastructure, applications, cloud environments, and networks.

  • Conduct web application, network, and API security testing.

  • Identify, validate, and assess security vulnerabilities and potential exploitation paths.

  • Perform configuration and security posture assessments of servers, operating systems, databases, and network devices.

  • Document findings, risk ratings, and remediation recommendations in technical assessment reports.

  • Support secure application deployment activities and validate security controls before production release.

  • Work closely with blue teams and system owners to validate remediation effectiveness.

  • Continuously research emerging threats, attack techniques, and offensive security tools.

Job Requirements

  • 3–10 years of working experience in Offensive Security, Penetration Testing, Vulnerability Assessment, or related cybersecurity roles.

  • Strong understanding of offensive security methodologies, vulnerability assessments, and penetration testing techniques.

  • Hands-on experience with security tools such as CrowdStrike Falcon, Nessus Professional, Burp Suite, Kali Linux, and related security testing solutions.

  • Experience conducting penetration testing across web applications, APIs, networks, infrastructure, and cloud environments.

  • Knowledge of security vulnerabilities, exploitation techniques, risk assessments, and remediation practices.

  • Familiarity with server, operating system, database, and network security configuration assessments.

  • Ability to prepare technical security assessment reports with clear findings, risk ratings, and remediation recommendations.

  • Strong analytical, problem-solving, and communication skills.

  • Ability to collaborate effectively with security operations teams, blue teams, and system owners.

  • This position is open to Malaysian citizens only.

Horizontal is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, or any other protected characteristic under applicable law.

Horizontal is committed to taking affirmative action to employ and advance in employment qualified individuals with disabilities and protected veterans. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process or participate in the interview process, click here to request accommodation assistance.

All applicants applying must be legally authorized to work in the country of employment.

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