Offensive Security Engineer
Replicon
Other Engineering
Makati, Metro Manila, Philippines
Posted on Mar 6, 2026
Company Summary
Deltek is seeking an Offensive Security Engineer to join our Offensive Security team as part of Deltek’s Threat and Vulnerability Management program. The Offensive Security Engineer will perform full scale, end-to-end security engagements across Deltek environments, including internal networks, external networks, web applications, on premise application, mobile applications, APIs, cloud environments, and other Deltek systems.
This role plays a key part in managing security risk across Deltek and protecting our customers. The successful candidate will be experienced in using dynamic security assessment tools combined with manual testing techniques to identify security vulnerabilities and determine their exploitability.
You will work closely with other security professionals and engineering teams across Deltek while testing their environments. You will be responsible for clearly identifying, validating, and explaining security risks and vulnerabilities, and collaborating with engineering teams on effective remediation strategies.
This position is hands-on and requires curiosity, strong analytical skills, and a collaborative mindset. The ideal candidate avoids a checklist-based approach to security testing and is comfortable operating with shared ownership, accountability, and professional judgment. Deltek’s broad application portfolio will provide exposure to a wide range of applications, technologies, and environments.
This role reports to a US-based Threat and Vulnerability Management team lead.
Position Responsibilities
Things You Will Do:
Qualifications: Minimum Requirements
Position Type
FT
Travel Requirements
10%
Applicant Privacy Notice
Deltek is committed to the protection and promotion of your privacy. In connection with your application for employment with us at Deltek, it is necessary for us to collect, store and use information about you (“Personal Data”) to administer and evaluate your application. We are the “controller” of the Personal Data you provide us and will process any such Personal Data in accordance with applicable law and the statements contained in this Employment Candidate Privacy Notice . Additionally, we have not sold and do not sell Personal Data you provide to us through the job application process.
Deltek is seeking an Offensive Security Engineer to join our Offensive Security team as part of Deltek’s Threat and Vulnerability Management program. The Offensive Security Engineer will perform full scale, end-to-end security engagements across Deltek environments, including internal networks, external networks, web applications, on premise application, mobile applications, APIs, cloud environments, and other Deltek systems.
This role plays a key part in managing security risk across Deltek and protecting our customers. The successful candidate will be experienced in using dynamic security assessment tools combined with manual testing techniques to identify security vulnerabilities and determine their exploitability.
You will work closely with other security professionals and engineering teams across Deltek while testing their environments. You will be responsible for clearly identifying, validating, and explaining security risks and vulnerabilities, and collaborating with engineering teams on effective remediation strategies.
This position is hands-on and requires curiosity, strong analytical skills, and a collaborative mindset. The ideal candidate avoids a checklist-based approach to security testing and is comfortable operating with shared ownership, accountability, and professional judgment. Deltek’s broad application portfolio will provide exposure to a wide range of applications, technologies, and environments.
This role reports to a US-based Threat and Vulnerability Management team lead.
Position Responsibilities
Things You Will Do:
- Design, scope, and perform offensive security engagements from planning through execution and reporting
- Perform application penetration testing against mobile, Web, API, and on premise applications to identify security vulnerabilities
- Conduct vulnerability assessments, penetration tests, and adversarial testing activities to evaluate Deltek’s cybersecurity posture
- Validate, document, and communicate findings and proof-of-concepts to a variety of stakeholders (e.g., application engineers, security partners, management)
- Collaborate closely with engineering teams to understand application architecture, behavior, and attack surfaces
- Assess cloud environments for security risks and misconfigurations in collaboration with platform and cloud teams
- Maintain and enhance offensive security tools, techniques, and methodologies in alignment with team practices and emerging threats
Qualifications: Minimum Requirements
- Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or equivalent practical experience
- 3–5 years of experience in offensive security, penetration testing, application security, or related security engineering roles
- Strong understanding of:
- Web application and API security concepts
- Network security fundamentals (HTTP/S, TCP/IP, DNS)
- Authentication, authorization, and access control mechanisms
- Hands-on experience with dynamic security testing tools and manual testing techniques
- Programming or scripting experience in Python, JavaScript, .NET, or similar languages
- Excellent communication and documentation skills
- Ability to collaborate effectively with application developers and security peers
- Experience testing applications built with modern frameworks and technologies (e.g., Java, .NET, C#)
- Exposure to cloud platforms and cloud security principles (AWS, Azure, or GCP)
- Experience validating exploitability beyond automated scanning
- One or more hands-on offensive security certifications or training (e.g., OSCP, eCPPT, PNPT, OSWE in progress or completed)
Position Type
FT
Travel Requirements
10%
Applicant Privacy Notice
Deltek is committed to the protection and promotion of your privacy. In connection with your application for employment with us at Deltek, it is necessary for us to collect, store and use information about you (“Personal Data”) to administer and evaluate your application. We are the “controller” of the Personal Data you provide us and will process any such Personal Data in accordance with applicable law and the statements contained in this Employment Candidate Privacy Notice . Additionally, we have not sold and do not sell Personal Data you provide to us through the job application process.