Staff Security Engineer

Job not on LinkedIn

🕒 October 8

🇺🇸 United States – Remote

💵 $185k - $270k / year

⏰ Full Time

🔴 Lead

👮‍♂️ Cybersecurity / Security Engineer

👻 Ghost score 2%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Jellyfish

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2005

📣 Marketing

📱 Media

🤖 Artificial Intelligence

Marketing • Media • Artificial Intelligence

Jellyfish is an integrated global digital marketing business that combines media, creative, data and technology to help brands move faster and more efficiently. It builds and operates AI-driven marketing platforms and tools — including creative-production (AI Studios/Pencil), media planning and bidding (Now Next Soon, J+ Bidding), brand visibility on large language models (Share of Model), cultural trend tracking (Social Agents) and creative–media performance linking (Switchboard). Jellyfish also offers language services and campaign optimization across markets, positioning itself as a technology-first agency that blends human creativity with generative AI to scale campaigns and improve ROI.

📋 Description

• Own and lead all Security Engineering activities at Jellyfish • Define and drive the strategic security roadmap aligned with executive business objectives • Design and mandate scalable, resilient security architectures across infrastructure, platform, and product ecosystems • Define, implement, and govern the company-wide Secure Development Lifecycle (SDLC) • Establish secure SDLC practices for internal AI tools and customer-facing AI features • Lead AI and machine-learning threat modeling and continuous risk assessments • Mitigate risks including prompt injection, data poisoning, and sensitive data leakage • Develop automated remedial workflows, vulnerability management, and software composition analysis solutions • Mentor engineers and advise executive leadership on security posture • Cultivate a company-wide culture of security and inclusion • Direct responses to critical security incidents • Oversee threat modeling and set strategy for penetration testing and bug bounty programs • Build security features and write high-quality code • Partner with engineering and data science teams • Occasionally travel as required

🎯 Requirements

• Extensive, proven track record owning, building, and scaling application security programs in a SaaS or fast-paced startup environment • Deep technical expertise in software engineering, including Python, JavaScript/TypeScript, Rust, or C/C++ • Architectural-level understanding of reliability, safety, and security • Deep understanding of security challenges involving Artificial Intelligence and Large Language Models (LLMs) • Practical experience securing internal AI infrastructure and customer-facing AI applications • Ability to balance AI product innovation with security, compliance, and data privacy standards • Demonstrated ability to drive cross-functional consensus and influence engineering leadership • Experience executing large-scale performance, testing, and security initiatives • Strong business acumen • Recognized computer security expertise and experience sharing knowledge through technical talks and engineering-wide education • Ability to work autonomously with a distributed team • Eligible to work in the U.S. for any employer • Located in EST or CST time zone (preferred) • Expert-level skills with Python, Django, Postgres, AWS, Terraform, Circle CI/GitLab/GitHub Actions, Semgrep, or LLVM (bonus) • Open-source security, standardization, or industry working-group contributions (bonus) • Experience transforming collaboration between security and engineering teams (bonus) • Previous security leadership at a high-growth startup (bonus) • Must be authorized to work for any employer in the US; visa sponsorship is unavailable

🏖️ Benefits

• Equity offered • Occasional travel opportunities/requirements • Diverse and inclusive workplace • Voluntary diversity survey; participation does not affect the job application

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