30 Senior Penetration Testers jobs in Singapore

*WHO WE ARE: *

As Singapore's longest established bank, we have been dedicated to enabling individuals and businesses to achieve their aspirations since 1932. How? By taking the time to truly understand people. From there, we provide support, services, solutions, and career paths that meet their individual needs and desires.

Today, we're on a journey of transformation. Leveraging technology and creativity to become a future-ready learning organisation. But for all that change, our strategic ambition is consistently clear and bold, which is to be Asia's leading financial services partner for a sustainable future.

We invite you to build the bank of the future. Innovate the way we deliver financial services. Work in friendly, supportive teams. Build lasting value in your community. Help people grow their assets, business, and investments. Take your learning as far as you can. Or simply enjoy a vibrant, future-ready career.

Your Opportunity Starts Here.

Why Join

Protecting our customers' assets and data is at the heart of everything we do at OCBC. As a Security Testing Specialist, you'll play a critical role in safeguarding our systems and networks from cyber threats. You'll be part of a team that's shaping the future of cybersecurity in the financial industry.

How you succeed

To succeed in this role, you'll need to stay one step ahead of emerging threats. You'll work closely with our engineering teams to identify and mitigate risks, and develop strategies to protect our systems and data. You'll need to be proactive, collaborative, and always looking for ways to improve our cybersecurity posture.

What you do

• Perform application penetration testing on web-based applications, APIs
• Perform mobile application penetration testing across different mobile platforms
• Perform network penetration testing on systems.
• Exploit vulnerabilities to gain access and expand access to remote systems.
• Document and explain the technical details of the security issues identified during security assessments and recommend mitigation controls for remediation.
• Research cutting edge security topics and new attack vectors
• Conduct compliance testing on web-based application, mobile applications and thick/thin-client application that meet predetermined Technology Security Standards and other regulatory requirements such as MAS TRMG.
• Conduct secure code review when required
• Perform thick client penetration testing when required

Who you are

• Minimum 3 years of hands-on penetration testing experience for web applications, mobile applications, and APIs
• Experience conducting Secure Code Review
• Degree in computer science/computer engineering/information security or equivalent.
• A working knowledge of all aspects of information security is essential.
• Familiarity of MAS TRMG and other regulatory/industries requirements.
• Good communication (spoken and written) skills, able to work independently and as a team
• Certifications from either GIAC/Offensive Security/CREST required.
• Hands on experience in using Kali Linux, tools such as Burp, Tenable and other penetration testing, and secure code review tools
• Experience in conducting penetration testing for Banks in Singapore will be highly preferred
• Experience in conducting code review for AS400 and legacy mainframe systems will be an advantage

Who we are

As Singapore's longest established bank, we have been dedicated to enabling individuals and businesses to achieve their aspirations since 1932. How? By taking the time to truly understand people. From there, we provide support, services, solutions, and career paths that meet their individual needs and desires.

Today, we're on a journey of transformation. Leveraging technology and creativity to become a future-ready learning organisation.

But for all that change, our strategic ambition is consistently clear and bold, which is to be Asia's leading financial services partner for a sustainable future.

We invite you to build the bank of the future. Innovate the way we deliver financial services. Work in friendly, supportive teams. Build lasting value in your community. Help people grow their assets, business, and investments. Take your learning as far as you can. Or simply enjoy a vibrant, future-ready career. Your Opportunity Starts Here.

What we offer

Competitive base salary. A suite of holistic, flexible benefits to suit every lifestyle. Community initiatives. Industry-leading learning and professional development opportunities. Equal opportunity. Fair employment. Selection based on ability and fit with our culture and values. Your wellbeing, growth and aspirations are every bit as cared for as the needs of our customers.

*What we offer: *

Competitive base salary. A suite of holistic, flexible benefits to suit every lifestyle. Community initiatives. Industry-leading learning and professional development opportunities. Your wellbeing, growth and aspirations are every bit as cared for as the needs of our customers.

• Perform in-depth penetration tests on a wide range of environments, including networks, web applications, mobile applications, and cloud infrastructure.
• Identify and exploit vulnerabilities, and provide actionable remediation recommendations.
• Develop and execute custom test cases, scenarios, and scripts to simulate attack vectors.
• Create detailed reports that clearly communicate findings, risk levels, and suggested mitigation strategies to both technical and non-technical stakeholders.
• Stay up-to-date with the latest cybersecurity threats, vulnerabilities, and technologies.
• Collaborate with development, IT, and security teams to address identified security weaknesses and verify fixes.
• Provide technical advice on security best practices and strategies for securing information systems.
• Assist in threat modeling and security architecture reviews.
• Support red team engagements and simulated attack scenarios.
• Ensure testing methodologies are aligned with industry standards such as OWASP, NIST, CIS Controls, and MITRE ATT&CK framework.
• Participate in security incident response when required, assisting in post-incident forensic investigations.

• Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or a related field (or equivalent experience).
• Proven experience in penetration testing across various domains (network, web, mobile, cloud, etc.).
• Strong knowledge of penetration testing tools such as Nmap, Metasploit, Burp Suite, Wireshark, Nessus, Kali Linux, etc.
• Deep understanding of network protocols, operating systems (Windows, Linux), and application security.
• Familiarity with security frameworks like CIS, NIST, and OWASP.
• Experience in writing custom scripts to automate security testing (e.g., Python, Bash, PowerShell).
• Ability to work both independently on projects and collaboratively in a team setting.
• Strong problem-solving skills, with the ability to think critically and analytically.
• Excellent communication skills, with the ability to present complex technical issues to non-technical stakeholders.

• CRT (CREST Registered Tester) certification is preferred.
• Other relevant certifications such as OSCP, OSWE, CPT, CEH, GPEN, or CISSP.
• Knowledge of cloud security testing in platforms like AWS, Azure, or Google Cloud.
• Familiarity with container security (e.g., Docker, Kubernetes) and DevSecOps practices.
• Understanding of social engineering techniques and their role in penetration testing.
• Experience with advanced techniques such as exploit development and red teaming.

Job Summary:

We are seeking a highly skilled Penetration Tester to join our cybersecurity team. In this role, you will be responsible for performing advanced penetration tests on networks, web applications, and systems to identify vulnerabilities and recommend security improvements. The ideal candidate will have experience with various security frameworks, offensive security techniques, and the ability to work both independently and in a team. Holding a CRT (CREST Registered Tester)certification is preferred but not mandatory. You will collaborate with stakeholders to improve the security posture of the organization and its clients.

Key Responsibilities:

• Perform in-depth penetration tests on a wide range of environments, including networks, web applications, mobile applications, and cloud infrastructure.
• Identify and exploit vulnerabilities, and provide actionable remediation recommendations.
• Develop and execute custom test cases, scenarios, and scripts to simulate attack vectors.
• Create detailed reports that clearly communicate findings, risk levels, and suggested mitigation strategies to both technical and non-technical stakeholders.
• Stay up-to-date with the latest cybersecurity threats, vulnerabilities, and technologies.
• Collaborate with development, IT, and security teams to address identified security weaknesses and verify fixes.
• Provide technical advice on security best practices and strategies for securing information systems.
• Assist in threat modeling and security architecture reviews.
• Support red team engagements and simulated attack scenarios.
• Ensure testing methodologies are aligned with industry standards such as OWASP, NIST, CIS Controls, and MITRE ATT&CK framework.
• Participate in security incident response when required, assisting in post-incident forensic investigations.

Requirements:

• Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or a related field (or equivalent experience).
• Proven experience in penetration testing across various domains (network, web, mobile, cloud, etc.).
• Strong knowledge of penetration testing tools such as Nmap, Metasploit, Burp Suite, Wireshark, Nessus, Kali Linux, etc.
• Deep understanding of network protocols, operating systems (Windows, Linux), and application security.
• Familiarity with security frameworks like CIS, NIST, and OWASP.
• Experience in writing custom scripts to automate security testing (e.g., Python, Bash, PowerShell).
• Ability to work both independently on projects and collaboratively in a team setting.
• Strong problem-solving skills, with the ability to think critically and analytically.
• Excellent communication skills, with the ability to present complex technical issues to non-technical stakeholders.

Preferred Qualifications:

• CRT (CREST Registered Tester) certification is preferred.
• Other relevant certifications such as OSCP, OSWE, CPT, CEH, GPEN, or CISSP.
• Knowledge of cloud security testing in platforms like AWS, Azure, or Google Cloud.
• Familiarity with container security (e.g., Docker, Kubernetes) and DevSecOps practices.
• Understanding of social engineering techniques and their role in penetration testing.
• Experience with advanced techniques such as exploit development and red teaming.

Job Overview

We are seeking for a Penetration Tester with CAT1 Security Clearance to lead VAPT for Singapore government and critical infrastructure sectors. You will execute full-scope attacks (networks, apps, cloud, OT), bypass advanced defenses, and deliver actionable remediation strategies.

This role requires CREST/OSCP certification, deep exploit development skills, and experience with GovTech cybersecurity frameworks.

Core Responsibilities

Advanced Threat Emulation:

1. CAT1-cleared engagements:
2. Network: Breach segmented govt networks (e.g., air-gapped systems)
3. Applications: Exploit web/mobile apps (SCADA interfaces, GovTech portals)
4. Cloud: Attack AWS GovCloud/Azure Government environments
5. OT: ICS/SCADA system penetration (Siemens, Rockwell)
6. Develop custom malware/exploits (C++, Python) to evade EDR/XDR.

Red Team Operations:

1. Lead multi-vector campaigns:
2. Phishing (Evade Proofpoint/MS ATP)
3. Physical security bypass (RFID cloning, access control spoofing)
4. Wireless attacks (802.1X, WPA3-Enterprise)
5. Document TTPs aligned with MITRE ATT&CK for ICS/Enterprise.

Govt Compliance & Reporting:

1. Align tests with IM8, CSA Red Teaming Guidelines, and NIST SP 800-115.
2. Deliver executive briefings to CISOs with exploit demos.
3. Create remediation playbooks

Research & Development:

1. Reverse engineer firmware (Binwalk, Ghidra) for 0-day discovery.
2. Contribute to ASEAN CERT advisories (e.g., SingCERT).

Technical Requirements

Non-Negotiable Credentials:

1. CAT1 Security Clearance
2. Active Certifications: OSCP or CREST CRT/CCT (Inf/App)
3. 2+ years in pentesting

Tool Proficiency

1. Exploitation - Metasploit Pro, Cobalt Strike, Burp Suite Pro, PowerSploit
2. Post-Exploit - BloodHound, Mimikatz, Impacket, Covenant C2
3. Forensics - Volatility, Wireshark, CHIRP (ICS)
4. Wireless - HackRF One, Proxmark3, Wi-Fi Pineapple
5. Cloud - Pacu (AWS), MicroBurst (Azure), GCP IAM Exploit Toolkit

Preferred Qualifications

1. Certifications: OSCE³, CREST CCT Gold, OSCP
2. Govt Framework Experience: IM8 Penetration Test Guidelines, CSA Cyber Essentials
3. Public Contributions: CVEs, exploit-db submissions, conference talks (Black Hat Asia, DEFCON)

Job Overview
We are seeking for a Penetration Tester with CAT1 Security Clearance to lead VAPT for Singapore government and critical infrastructure sectors. You will execute full-scope attacks (networks, apps, cloud, OT), bypass advanced defenses, and deliver actionable remediation strategies.
This role requires CREST/OSCP certification, deep exploit development skills, and experience with GovTech cybersecurity frameworks.
Core Responsibilities
Advanced Threat Emulation:
CAT1-cleared engagements:
Network: Breach segmented govt networks (e.g., air-gapped systems)
Applications: Exploit web/mobile apps (SCADA interfaces, GovTech portals)
Cloud: Attack AWS GovCloud/Azure Government environments
OT: ICS/SCADA system penetration (Siemens, Rockwell)
Develop custom malware/exploits (C++, Python) to evade EDR/XDR.
Red Team Operations:
Lead multi-vector campaigns:
Phishing (Evade Proofpoint/MS ATP)
Physical security bypass (RFID cloning, access control spoofing)
Wireless attacks (802.1X, WPA3-Enterprise)
Document TTPs aligned with MITRE ATT&CK for ICS/Enterprise.
Govt Compliance & Reporting:
Align tests with IM8, CSA Red Teaming Guidelines, and NIST SP 800-115.
Deliver executive briefings to CISOs with exploit demos.
Create remediation playbooks
Research & Development:
Reverse engineer firmware (Binwalk, Ghidra) for 0-day discovery.
Contribute to ASEAN CERT advisories (e.g., SingCERT).
Technical Requirements
Non-Negotiable Credentials:
CAT1 Security Clearance
Active Certifications: OSCP or CREST CRT/CCT (Inf/App)
2+ years in pentesting
Tool Proficiency
Exploitation - Metasploit Pro, Cobalt Strike, Burp Suite Pro, PowerSploit
Post-Exploit - BloodHound, Mimikatz, Impacket, Covenant C2
Forensics - Volatility, Wireshark, CHIRP (ICS)
Wireless - HackRF One, Proxmark3, Wi-Fi Pineapple
Cloud - Pacu (AWS), MicroBurst (Azure), GCP IAM Exploit Toolkit
Preferred Qualifications
Certifications: OSCE3, CREST CCT Gold, OSCP
Govt Framework Experience: IM8 Penetration Test Guidelines, CSA Cyber Essentials
Public Contributions: CVEs, exploit-db submissions, conference talks (Black Hat Asia, DEFCON)
#J-18808-Ljbffr

Company: Fortiedge Pte. Ltd.

About Us: Fortiedge is a cybersecurity firm dedicated to protecting our clients' digital assets. We are committed to innovation, excellence, and providing top-notch services. Join our team and help us safeguard the future.

Job Description: We are seeking a skilled and motivated Penetration Tester to join our cybersecurity team. The ideal candidate will have a strong background in ethical hacking and a passion for identifying and mitigating security vulnerabilities. As a Penetration Tester, you will be responsible for conducting comprehensive security assessments, simulating cyber-attacks, and providing actionable recommendations to enhance our clients' security posture.

Key Responsibilities:

• Conduct penetration testing on web/mobile applications, networks, and systems.
• Conduct source code review.
• Identify and exploit security vulnerabilities in various environments.
• Develop and execute test plans, methodologies, and tools.
• Document findings and provide detailed reports with remediation recommendations.
• Stay up-to-date with the latest security trends, tools, and techniques.

Qualifications:

• Bachelor's degree in Computer Science, Information Security, or a related field.
• Proven experience in penetration testing and ethical hacking.
• Proficiency with penetration testing tools (e.g., Metasploit, Burp Suite, Nmap).
• Strong understanding of network protocols, operating systems, and web technologies.
• Relevant certifications (e.g., OSCP, CEH, CISSP) are highly desirable.
• Excellent problem-solving skills and attention to detail.
• Strong communication skills, both written and verbal.
• Ability to work independently and as part of a team.

Benefits:

• Competitive salary and performance-based bonuses.
• Comprehensive health, dental, and vision insurance.
• Professional development opportunities and certification reimbursements.
• Flexible working hours and remote work options.
• Collaborative and inclusive work environment.

Job Summary:

We are seeking a highly skilled Penetration Tester to join our cybersecurity team. In this role, you will be responsible for performing advanced penetration tests on networks, web applications, and systems to identify vulnerabilities and recommend security improvements. The ideal candidate will have experience with various security frameworks, offensive security techniques, and the ability to work both independently and in a team. Holding a CRT (CREST Registered Tester) certification is preferred but not mandatory. You will collaborate with stakeholders to improve the security posture of the organization and its clients.

Key Responsibilities:

• Perform in-depth penetration tests on a wide range of environments, including networks, web applications, mobile applications, and cloud infrastructure.
• Identify and exploit vulnerabilities, and provide actionable remediation recommendations.
• Develop and execute custom test cases, scenarios, and scripts to simulate attack vectors.
• Create detailed reports that clearly communicate findings, risk levels, and suggested mitigation strategies to both technical and non-technical stakeholders.
• Stay up-to-date with the latest cybersecurity threats, vulnerabilities, and technologies.
• Collaborate with development, IT, and security teams to address identified security weaknesses and verify fixes.
• Provide technical advice on security best practices and strategies for securing information systems.
• Assist in threat modeling and security architecture reviews.
• Support red team engagements and simulated attack scenarios.
• Ensure testing methodologies are aligned with industry standards such as OWASP , NIST , CIS Controls , and MITRE ATT&CK framework.
• Participate in security incident response when required, assisting in post-incident forensic investigations.

Requirements:

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or a related field (or equivalent experience).
• Proven experience in penetration testing across various domains (network, web, mobile, cloud, etc.).
• Strong knowledge of penetration testing tools such as Nmap , Metasploit , Burp Suite , Wireshark , Nessus , Kali Linux , etc.
• Deep understanding of network protocols, operating systems (Windows, Linux), and application security.
• Familiarity with security frameworks like CIS , NIST , and OWASP .
• Experience in writing custom scripts to automate security testing (e.g., Python , Bash , PowerShell ).
• Ability to work both independently on projects and collaboratively in a team setting.
• Strong problem-solving skills, with the ability to think critically and analytically.
• Excellent communication skills, with the ability to present complex technical issues to non-technical stakeholders.

Preferred Qualifications:

• CRT (CREST Registered Tester) certification is preferred.
• Other relevant certifications such as OSCP , OSWE , CPT , CEH , GPEN , or CISSP .
• Knowledge of cloud security testing in platforms like AWS , Azure , or Google Cloud .
• Familiarity with container security (e.g., Docker, Kubernetes) and DevSecOps practices.
• Understanding of social engineering techniques and their role in penetration testing.
• Experience with advanced techniques such as exploit development and red teaming.

Job Overview

We are seeking for a Penetration Tester with CAT1 Security Clearance to lead VAPT for Singapore government and critical infrastructure sectors. You will execute full-scope attacks (networks, apps, cloud, OT), bypass advanced defenses, and deliver actionable remediation strategies.

This role requires CREST/OSCP certification, deep exploit development skills, and experience with GovTech cybersecurity frameworks.

Core Responsibilities

Advanced Threat Emulation:

1. CAT1-cleared engagements:
2. Network: Breach segmented govt networks (e.g., air-gapped systems)
3. Applications: Exploit web/mobile apps (SCADA interfaces, GovTech portals)
4. Cloud: Attack AWS GovCloud/Azure Government environments
5. OT: ICS/SCADA system penetration (Siemens, Rockwell)
6. Develop custom malware/exploits (C++, Python) to evade EDR/XDR.

Red Team Operations:

1. Lead multi-vector campaigns:
2. Phishing (Evade Proofpoint/MS ATP)
3. Physical security bypass (RFID cloning, access control spoofing)
4. Wireless attacks (802.1X, WPA3-Enterprise)
5. Document TTPs aligned with MITRE ATT&CK for ICS/Enterprise.

Govt Compliance & Reporting:

1. Align tests with IM8, CSA Red Teaming Guidelines, and NIST SP 800-115.
2. Deliver executive briefings to CISOs with exploit demos.
3. Create remediation playbooks

Research & Development:

1. Reverse engineer firmware (Binwalk, Ghidra) for 0-day discovery.
2. Contribute to ASEAN CERT advisories (e.g., SingCERT).

Technical Requirements

Non-Negotiable Credentials:

1. CAT1 Security Clearance
2. Active Certifications: OSCP or CREST CRT/CCT (Inf/App)
3. 2+ years in pentesting

Tool Proficiency

1. Exploitation - Metasploit Pro, Cobalt Strike, Burp Suite Pro, PowerSploit
2. Post-Exploit - BloodHound, Mimikatz, Impacket, Covenant C2
3. Forensics - Volatility, Wireshark, CHIRP (ICS)
4. Wireless - HackRF One, Proxmark3, Wi-Fi Pineapple
5. Cloud - Pacu (AWS), MicroBurst (Azure), GCP IAM Exploit Toolkit

Preferred Qualifications

1. Certifications: OSCE³, CREST CCT Gold, OSCP
2. Govt Framework Experience: IM8 Penetration Test Guidelines, CSA Cyber Essentials
3. Public Contributions: CVEs, exploit-db submissions, conference talks (Black Hat Asia, DEFCON)

Identifies and mitigates cyber risks by assessing systems, networks, and applications for vulnerabilities. They simulate real-world attacks, document findings, and provide security improvement recommendations. Staying updated on cybersecurity trends, they collaborate with other professionals to develop comprehensive security strategies.

• Conduct security assessments on systems, networks, and applications.
• Simulate cyber attacks to identify system vulnerabilities.
• Typical security testing activities include:
• Software/Web Application/Web Services penetration testing
• Network Penetration Testing
• Mobile Application Penetration Testing
• Thick Client Penetration Testing
• Develop and execute penetration testing methodologies.
• Prepare detailed reports on the findings of penetration tests.
• Recommend and implement improvements to security policies.
• Stay updated with the latest penetration testing tools and techniques.
• Train staff on security awareness and procedures.
• Collaborate with IT staff to improve system security.

Requirements:

• Bachelor's degree in information security, information systems management, computer science, engineering, or other related discipline.
• More than 2 years of experience in information technology, IT audits, or cyber security.
• Proven experience as a Penetration Tester or similar role in cybersecurity.
• Proficiency in using automated tools and manual testing techniques.
• Strong understanding of common vulnerabilities and exploits.
• Relevant certifications (e.g., CEH, OSCP, CREST) are strongly preferred.
• Excellent problem-solving and analytical skills.
• Must be able to work under pressure and produce content to tight timelines.
• Ability to self-manage, prioritizing a variety of tasks.