Penetration Tester

OSec; New York (NY); On-site; USD 90,000 - 140,000; Full time

Benefits offered by this job

Flexible working hours

Competitive health packages

Life insurance

401k plan with company contributions

Maternity and parental leave

On-the-job training opportunities

Paid, flexible vacation

Job summary

OSec is seeking a Penetration Tester to join the Assessment Team in New York. You will perform offensive and defensive security projects for clients and report to the Assessment Team Lead.

You will conduct audits across APIs, mobile, cloud, and web apps, draft comprehensive reports, and provide actionable security recommendations. Remote work is not specified; strong collaboration and up‑to‑date tooling are required.

Qualifications

• 2–3+ years of professional pentesting experience preferred.
• Hands-on experience with AWS EC2/S3/KMS/RDS or equivalent in Azure/GCP.
• Proficient in API, mobile, cloud and web app security testing.
• Familiarity with scripting languages and security tooling.

Responsibilities

• Conduct security audits, network penetration tests, and web/API/cloud assessments.
• Draft security assessment reports with findings and evidence.
• Use social engineering to identify security awareness improvements.
• Provide guidance to clients on reducing security risks.
• Work in teams on complex projects with oversight.

Skills

Penetration testing

Cloud security

AWS security

API testing

Web/mobile testing

Scripting (Python/Perl/Go/Ruby)

Tools

Wireshark

tcpdump

Cloud platforms tooling

Job description

The Penetration Tester is responsible for working as part of the Assessment Team to conduct and participate in offensive and defensive security projects for OccamSec and its clients. This individual will work as part of a security team and report to an Assessment Team Lead.

Job Responsibilities

• Conduct security audits, network penetration tests, and web application, API and cloud assessments.
• Draft security assessment reports that outline findings and provide a walkthrough of the assessment performed with evidence provided appropriately.
• Use social engineering to identify improvement for security awareness and education.
• Provide guidance and recommendation to clients on ways to fix or reduce security risks to their networks and products.
• Operate as part of a team on larger, more complex projects with oversight from senior team members.
• Operate independently on projects within defined-skill set, with oversight from a Project Manager.
• Maintain proficiency in current security tools and skills.

Experience

• Candidates with at least 2-3 years of professional experience are preferred.
• Proficient in working with AWS services like EC2, S3, KMS, RDS, or similar services on Azure & GCP, with a focus on implementing security best practices.
• Skilled in conducting penetration tests for API, Mobile, Cloud, and Web Applications.
• Familiarity with scripting languages such as Python, Perl, Go or Ruby.
• Hands‑on experience in building or developing Server or Application Technologies.
• Utilized penetration tools effectively in various scenarios.
• Applied expertise in replicating threat behaviors.
• Proficient in using packet analyzer tools like Wireshark and tcpdump.
• Sound understanding of IP network protocols, sub‑netting, routing, switching, etc.
• Extensive background in penetrating and exploiting secure networks and systems, staying updated with the latest security software packages, protocols, and computer technologies.
• Excellent written and oral communication skills, with a proven track record in generating comprehensive reports and assessments.

Benefits

• Flexible working hours;
• Competitive health packages;
• Life insurance;
• 401k plan with company contributions
• Maternity and parental leave;
• On-the-job training opportunities; and
• Paid, flexible vacation.