Senior Application Security Engineer

at Globalizationpartners

United Kingdom (Remote-First), remote, senior, full time, GBP 72,000–87,000 / year, 3+ years

posted 15 Oct 2026

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DAST
Go
SAST
SCA
CSPM
Linux
Docker
Terraform
Penetration Testing
JavaScript
AWS
Python
REST APIs

About the role

As an Senior Application Security engineer , you will support G-P’s application security program, ensuring the safety of both web platforms and integrated AI/LLM systems. You will evaluate web technologies and AI workflows using enterprise-grade tools, enforce AI security guidelines, and coordinate remediation efforts with engineering teams.

What you would do

- Participate in threat modeling exercises with engineering team members for application and AI-driven architectures

- Triage SCA/SAST/DAST/CSPM findings by eliminating false positives and providing well-vetted vulnerabilities to engineering teams

- Support vulnerability management efforts for networks and infrastructure

- Partner with engineering teams ensuring timely remediation of security findings

- Perform security assessments, reviews, and internal penetration tests

- Support application security programs and security team initiatives

- Develop scripts and tools to automate repetitive security tasks, such as log analysis, patch management, and incident detection.

- Build custom solutions to integrate security tools with existing systems using languages like Python, JavaScript, or Go.

What they are looking for

- Education:BS (or higher) in Computer Science or related field, or equivalent work experience.

- Experience: 3+ years of experience in application security with any combination of the following: threat modeling experience, secure design reviews, code reviews, pen-testing

- Excellent communication skills and business acumen

- Proficiency in coding/scripting languages (e.g., Python, Go etc.).

- Web application penetration testing experience (CTFs, Bug Bounty, etc)

- Amazon Web Services (AWS) security and engineering knowledge and experience

- Experience with developing or testing web application technologies

- Nice to have security certifications (OSCP, OSWP, eCPPT, eWPT, Security+, etc)

Read from job-boards.greenhouse.io, last seen 4d ago.

What comes with it

G-P values its employees and offers excellent benefits and perks including generous paid parental leave, flexible time off, spending accounts, medical insurance, dental insurance, vision insurance, sabbatical after 5 years and more.

Individuals residing, or applying to work, in the United States: California or Philadelphia, Pennsylvania, please review the following additional information:

G-P will consider qualified applicants with arrest or conviction records in accordance with the California Fair Chance Act, Los Angeles City Fair Chance Act Ordinance, Los Angeles County Fair Chance Act Ordinance, and San Francisco Fair Chance Act Ordinance. Los Angeles applicants can review additional information regarding the Los Angeles City Fair Chance Act here: Fair Chance Initiative for Hiring Ordinance, and Philadelphia applicants can review information pertaining to Philadelphia’s Fair Criminal Record Screening Standards Ordinance here: Fair Chance Poster. Any consideration of a candidate’s background check with arrest or conviction records will include an individualized assessment based on the factors required by applicable law, including the candidate’s specific record and the duties and requirements of the specific job.

G-P. Global Made Possible.

G-P is a proud Equal Opportunity Employer, and we are committed to building and maintaining a diverse, equitable and inclusive culture that celebrates authenticity. We prohibit discrimination and harassment against employees or applicants on the basis of race, color, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, and pregnancy-related conditions), gender identity or expression (including transgender status), sexual orientation, marital status, military service and veteran status, physical or mental disability, genetic information, or any other legally protected status.

G-P also is committed to providing reasonable accommodations to individuals with disabilities. Individuals with disabilities are encouraged to apply for these positions. If you need an accommodation due to a disability during the interview process, please contact us at careers@g-p.com.