Security engineer, application security (UK)

London, England, United KingdomWebsite

Full details on LinkedIn

The complete job description, requirements, and application details are available on the original posting.

About WRITER

Writer Inc. is a generative AI company based in San Francisco, founded in 2020 by May Habib and Waseem AlShikh. The company offers a comprehensive enterprise AI platform that allows businesses to build, deploy, and manage AI agents and workflows using custom large language models (LLMs) and various development tools. Writer focuses on enhancing enterprise-wide AI adoption across multiple sectors, including marketing, sales, finance, and healthcare, by integrating AI with company data for accurate and compliant outputs. The platform features the Palmyra family of LLMs, which includes domain-specific models tailored for healthcare and finance. Key components of the platform include AI Studio for creating custom applications, a Knowledge Graph for connecting business data, and tools for automation and AI supervision. Writer operates on a tiered SaaS model, providing a secure and scalable ecosystem for organizations. The company has raised over $326 million in funding and serves around 250 enterprise customers, including notable names like Uber, Spotify, and L'Oréal.

Industry

information technology & services

Employees

2,500

130 engineers

Revenue

$47M

Website

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Security at WRITER

Compiled from public job postings, careers pages, and company materials. Data may not reflect current state — verify during interviews.

3 Intel Signals

Security Philosophy

Writer views security as a 'velocity multiplier' rather than a blocker, aiming to embed security into every line of code.
The philosophy centers on 'shifting left,' developer enablement, and maintaining a 'full spectrum' security posture where defenders act as attackers to test resilience.

Security Team

The security organization is led by Eric Freeman, Chief Information Security Officer (CISO).
The team includes dedicated Application Security roles, as evidenced by active recruitment for Security Engineers focused on this domain.
The team's structure emphasizes cross-functional engagement with engineers and staff.

Key Initiatives

Key initiatives include the integration of AI agents to increase security velocity, establishing SAST/DAST in CI/CD pipelines, and conducting regular purple teaming.
The team also maintains SOC 2 Type II and ISO certifications and enforces least-privilege access across the platform.

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