Penetration Tester: Ethical Hacker CEH, OSCP, OSCE, GPEN
Full-time
GVA Partners
Job title : Penetration Tester: Ethical Hacker CEH, OSCP, OSCE, GPEN
Job Location : Lagos Deadline : November 06, 2026 Quick Recommended LinksJob Summary
- We are seeking a skilled and driven penetration tester with a hacker mindset to proactively simulate real-world attacks to identify, assess, and exploit security vulnerabilities.
- You’ll be part of a fast-paced security team, expected to think like an adversary while maintaining ethical standards and compliance.
- You must be capable of both automated and manual testing, custom script writing, and producing detailed yet understandable reports.
Key Responsibilities
- Conduct black-box, gray-box, and white-box penetration tests on: Web apps, Mobile apps, APIs.
- Perform social engineering and phishing simulation campaigns.
- Develop and execute custom exploits where necessary.
- Document proof-of-concept exploits and provide risk-ranked findings.
- Conduct red team exercises simulating advanced persistent threats (APT).
- Analyze security findings from Hacker One and recreate vulnerabilities.
- Collaborate with developers, Appsec Team, DevOps, and product teams to provide remediation guidance.
- Stay current on CVEs, exploits, hacker tools, and threat actor techniques (TTPs).
- Weekly updates and debriefs with stakeholders.
- Manual Application and Api Penetration testing based on Owasp top 10 (Mobile,Web,Api).
Minimum Requirements
- Bachelor's Degree with 5 years of experience.
- Proven experience in offensive security or ethical hacking.
- Demonstrated history with Bug Bounty programs or CTF competitions.
- Deep understanding of web technologies, cloud platforms, and modern infrastructure.
- Ability to write and explain exploits or security PoCs clearly.
- Strong report writing and communication skills.
Tools and Platforms (it’s expected to have knowledge of how to use at least one of each of the listed tools):
- Burp Suite, OWASP ZAP, Nmap.
- Mobile security tools: MobSF, Frida, jadx, Objection, genny motion, Andriod studio.
- Kali Linux, Parrot OS, custom scripts in Python, Bash, PowerShell.
- Postman, for API testing.
Security Standards & Compliance:
- OWASP Top 10 (Web, API, Mobile).
- CIS Benchmarks.
- NIST 800-53, ISO/IEC 27001.
Preferred Qualifications:
- CEH, OSCP, OSCE, GPEN, or similar certifications.
- Experience working in CI/CD environments and with DevSecOps teams.
- Programming or scripting experience (Python, JavaScript, Nodejs, php, Go, Bash).
Vacancy posted 9 days ago
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