Security engineer, application security
Job Description
WRITER is at the forefront of AI and AGI application development, seeking an Application Security Engineer to strengthen their security infrastructure. This role combines deep technical expertise in application security with AI system protection. The position requires 8+ years of application security experience, focusing on embedding security in build pipelines, conducting penetration testing, and leading red team exercises. The role offers a unique opportunity to work with cutting-edge AI technology while implementing robust security measures. Based in London with a hybrid work arrangement, the position offers comprehensive benefits including medical insurance, parental leave, and equity options. The ideal candidate will have strong programming skills, experience with security automation, and the ability to collaborate across different teams including Cloud/Infrastructure, AI Security, and Detection & Response. This is an excellent opportunity for a security professional who wants to impact the future of AI technology while ensuring its safety and security.
Responsibilities For Security engineer, application security
- Own pre-deployment application security, including automated vulnerability scanning, container scanning, and security gates in CI/CD
- Perform comprehensive testing on AI applications, APIs, and model endpoints
- Develop scripts, tools, and frameworks for continuous security assessment
- Plan and execute red team exercises targeting AI systems
- Discover, reproduce, and chain vulnerabilities into realistic attack paths
- Review security architecture and create secure patterns
- Partner with Cloud/Infrastructure, AI Security, and Detection & Response teams
Requirements For Security engineer, application security
- 8+ years in application security, with a strong focus on hands-on testing
- 5+ years conducting penetration tests and security assessments
- Proven record of finding and exploiting critical vulnerabilities
- Deep experience integrating security into DevOps workflows and CI/CD pipelines
- Strong programming skills for exploit development and security automation
- Expertise in web application and API security, including cloud-native architectures
- Proficient with penetration testing tools
- Skilled in SAST, DAST, and SCA tools
Benefits For Security engineer, application security
- Generous PTO, plus company holidays
- Comprehensive medical and dental insurance
- Paid parental leave for all parents (12 weeks)
- Fertility and family planning support
- Early-detection cancer testing
- Competitive pension scheme and company contribution
- Home office setup, cell phone, internet stipend
- Wellness stipend for gym, massage/chiropractor, personal training
- Learning and development stipend
- Company-wide off-sites and team off-sites
- Competitive compensation and company stock options
