Security Research Engineer
Sybil
Security Research Engineer
RunSybil is an AI security startup scaling offensive security services by automating hacker intuition. We're building Sybil: an AI-powered penetration testing product that finds vulnerabilities faster than human hackers. Backed by strong investor support and early customer traction, our team is composed of experts from the likes of OpenAI, Meta, Mandiant, Palantir, Cruise, and Trail of Bits.
About This Role
We are seeking talented engineers intent on changing the security industry. If you have experience on fast-moving teams, building security products that developers love, and driving projects to completion through ambiguity: we want to talk to you. Ideal candidates have experience building with LLMs.
What You'll Do:
- Offensive agentic capability development
- End-to-end development of high-impact customer facing features and systems
- Propose and implement technical initiatives based on product roadmap needs
- Lead technical design discussions, contribute to team decisions, and provide feedback on engineering approaches
- Translate ambiguous technical challenges into actionable plans, and execute them in collaboration with the team
- Serve as the cornerstone of our engineering culture by setting and upholding exemplary standards for code quality, practices, and craftsmanship
We're Looking For Someone Who Has A Mix Of The Following:
- 4+ years of experience building software
- Offensive security experience finding vulnerabilities in a variety of targets
- Experience designing, deploying, and maintaining production Python backend code
- Strong understanding of modern JS, React, and Python design patterns
- Experience in writing testable and performant code
- Experience with generative AI: ideal candidates have built tools powered by an LLM
- Ideal candidates will be familiar with DevOps or infrastructure engineering concepts
- Seeks autonomy, creative problem-solving, and moving quickly
Hybrid role based in New York City. Some travel may be required.
What We Offer:
- Competitive Salary: Attractive startup compensation package with equity options
- Benefits: Excellent medical, dental, and vision plans. Unlimited PTO
- Growth Opportunities and Early Impact: Work directly with and learn from industry leaders while driving significant impact in our fast-growing security startup
Vacancy posted 19 hours ago
Similar jobs that could be interesting for youBased on the Security Research Engineer in San Francisco, CA vacancy
$320k - $405k
...Security Engineer / Research Engineer, RL Security About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group...SuggestedFor contractorsWork at officeVisa sponsorshipFlexible hoursAnthropic Limited
San Francisco, CA1 day ago$266k
...intelligence benefits all of humanity. The Security team protects OpenAI’s technology,... ...committed to supporting all products and research at OpenAI. Our Security team tenets include... ...culture. About the RoleAs a Security Engineer, Application Security you will be responsible...SuggestedWork at officeRemote workRelocation packageFlexible hoursOpenAI
San Francisco, CA5 days ago$237.6k - $297k
We are seeking a highly technical Security Engineer to join our Product Security team. This role is integral to ensuring the security and integrity of our products and services. You will conduct in-depth code reviews, implement security best practices, and influence the...SuggestedFull timeScale AI
San Francisco, CA5 days ago$200k - $220k
...employees, their laptops, their identities, and the SaaS apps they rely on every day.We are looking for a hands-on Corporate Security Engineer to own and improve the technical controls that keep our workforce and corporate environment safe. This is a security engineering...SuggestedWork at officeLocal areaNotion Labs
San Francisco, CA6 days ago$10 per hour
...impact business, society, and the environment? Come join us.All security disciplines work under the umbrella of the combined PSI (... ...Infrastructure) team: we build the paved path and tooling that hundreds of engineers around the world rely on every day to ship. Corporate Security...SuggestedWork at officeImmediate startRelocationRelocation packageFlexible hoursFlexport
San Francisco, CA3 days ago$183k - $247.6k
...underserved communities around the world.We are a specialized security team that sits inside a global satellite communications business... ...mitigation plans- Experience in threat hunting, detection engineering, or product/application security, including moving from a security...Permanent employmentLocal areaImmediate startFlexible hoursShift workAmazon
San Francisco, CA4 days ago- ...time, spend it on something that matters to the world. The Security Team Examples of key problems the team is working on... ...firmware and BMCs, and data center OT. Partner with security and engineering teams on AI-specific attack scenarios, including agentic...
Fluidstack
San Francisco, CA5 hours ago $150k - $250k
...manufacturing, consumer goods, and global social organizations.We research and deploy technologies that power AI-native operations — both... ...of 20+ F500s. What We Are Looking ForAt Distyl, Research Engineers build the bridge between frontier AI research and production systems...Work at office3 days per weekDistyl AI
San Francisco, CA6 days ago$193.3k - $261.5k
...enterprise systems. As a key member of this team, you will lead research and development efforts in generative AI and Agentic AI to... ...leadership, hands-on innovation, and deep collaboration with engineering teams to bring research into production.Key job responsibilitiesA...InternshipLocal areaFlexible hoursAmazonWebServices
San Francisco, CA5 days ago$200k - $225k
About AlembicAlembic is where top engineers are solving marketing's hardest problem: proving what actually works. If you're looking for... ...teams and customers to leverage advanced analyticsDocument research and implementation decisions for reproducibility and knowledge...Alembic
San Francisco, CA6 days ago- ...customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda'... ...currently Tuesday. About the Role Lambda Security protects some of the world's most... ...understand your readiness for a Sr. Security Engineer role. What You’ll Do Identity &...Work at officeLocal areaRemote workWork from homeFlexible hours
Lambda Inc.
San Francisco, CA2 days ago $197.3k - $313.7k
...looking for talented software and platform engineers to embed in our AI team to bridge the... ...engineering skills directly enable world-class research and products used by millions?At... ...our research breakthroughs into stable, secure, and production-ready applications.The Research...Full timeSalesforce
San Francisco, CA5 days ago- ...product and design teams for Google Workspace.Sierra’s Applied Research team advances the quality, speed, and cost efficiency of the... ...other legally protected class.LocationSan Francisco, CAEmployment TypeFull timeLocation TypeOn-siteDepartmentEngineeringPlatform EngineeringFull timeFlexible hours
Sierra
San Francisco, CA4 days ago - ...About the Role Factory is seeking innovative Research Engineers to design and integrate advanced AI and ML capabilities that revolutionize productivity and accelerate innovation within software organizations.What you will do and achieveDesign, develop, and deploy AI-driven...Work at office
The San Francisco AI Factory
San Francisco, CA6 days ago $155k - $400k
...team is building its AI-native future. About The Role The Security Team is responsible for securing all things Sentry: our... ...autonomy to tackle hard security problems with creativity and an engineering mindset. We work at a company with a strong developer culture,...Hourly payFlexible hoursSentry
San Francisco, CA2 days ago$180k - $230k
...of our vision to transform regulated industries and beyond. Security at Valon Our customers entrust us with some of their most... ...systems, the Security team partners closely with Product and Engineering to design and deliver secure, scalable, and trustworthy capabilities...Local areaRemote workFlexible hoursValon
San Francisco, CA2 days ago$250k
...00/year + benefits Description: Transluce is a non‑profit research lab building tools for scalable, end‑to‑end oversight of AI systems... ...About the role: We are looking for strong scientists and engineers to help advance our vision of scalable end‑to‑end oversight...Work at officeVisa sponsorshipTransluce
San Francisco, CA2 days ago- ...growth. About the Role We are looking for an experienced Research Engineer to work on retrieval & search problems across our API and... ...public information. In addition, job duties require access to secure and protected information technology systems and related data...
Free resume
San Francisco, CA4 days ago - ...company on the list! Healthcare spends $1.1 trillion a year on administration instead of care. About the Role As a Research Engineer, you’ll be responsible for building industry-leading healthcare AI models and model pipelines that power Assort’s voice agents...Work at officeFlexible hours
Alt
San Francisco, CA2 days ago - ...want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the RL teams Our...Work at officeVisa sponsorshipFlexible hours
Anthropic Limited
San Francisco, CA1 day ago - ...category-defining platform for ambient intelligence. Voice is the highest-signal interface we have — and we’re looking for a research-minded engineer to push what’s possible with voice end-to-end: capture → understanding → real-time experiences → evaluation. What you'...Immediate start
Pocket Worlds
San Francisco, CA5 hours ago - ...About the Team The Privacy Engineering Team at OpenAI is committed to integrating privacy... ...the highest standards of data privacy and security. We build essential production... ...equip cross‑functional engineering and research partners with the necessary tools to ensure...Relocation package
The Consensus
San Francisco, CA2 days ago $231k - $340k
...are meaningfully better at legal work. We are looking for a research engineer who can help scale that loop: defining and running model training... ...while navigating the Pareto frontier of cost, latency, security, and governance. Optimize agent harnesses, including domain...Harvey AI
San Francisco, CA2 days ago$128.9k - $180k
...at your back. If Braze sounds like a place where you can thrive, we can't wait to meet you. WHAT YOU'LL DO As a Senior Security Engineer on the Enterprise Security team, you'll protect Braze employees, their assets, and work locations using various tools and...Work at officeLocal areaFlexible hoursBraze
San Francisco, CA4 days ago- ...About Phonic Phonic is a product and research lab focused on powering the most realistic, human-like voice AI conversations. We've... ...in-person in our SF office. About The Role As a Research Engineer at Phonic, you'll sit at the intersection of cutting-edge ML research...Work at office
Mixpeek
San Francisco, CA2 days ago $400 per month
...a highly-specialized Spatial Computing Engineer to join our team full‑time. You will play... ...will work end‑to‑end from cutting‑edge research prototypes to production inference and performance... ...; active or ability to obtain U.S. security clearance. Why Join Us? ~ Meaningful...Full timeSchemata
San Francisco, CA4 days ago$175k - $250k
...Research Engineer About Scorecard We’re a small, nimble team backed by top-tier investors. We have multi-billion dollar customers and a long runway. To accelerate our growth, we’re looking to hire exceptional engineers to help shape the future of AI development....Work at officeKindredventures
San Francisco, CA2 days ago- ...were YC W25. About the role We’re looking for an Applied Research Engineer to own implementation. Our data buyers and sellers often... ...when to move fast, when to elevate, and when correctness or security requires extra care Comfort working directly with technical...Full timeWork at officeRemote workRelocationVisa sponsorship
HUD
San Francisco, CA2 days ago - ...critical infrastructure that powers breakthrough AI models at leading research labs and enterprises. Since 2018, we've been pioneering data-... ...and metrics. Role Overview As an Applied Research Engineer, you will be at the forefront of developing cutting-edge systems...Flexible hours
HRB
San Francisco, CA2 days ago $180k - $280k
...consecutive years, including 2025. The Impact You’ll Make Our research team is expanding to keep pace with a wave of frontier‑facing... ...opportunities at the cutting edge of the field. As a Research Engineer, you’ll take a research direction and run with it – finding the...Full timeSuperAnnotate AI
San Francisco, CA1 day ago
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Security Research Engineer. Be the first to apply!
Related searches
- senior security operations engineer San Francisco, CA
- staff security engineer San Francisco, CA
- offensive security engineer San Francisco, CA
- information technology security engineer San Francisco, CA
- network security engineer San Francisco, CA
- physical security engineer San Francisco, CA
- product security engineer San Francisco, CA
- security engineer San Francisco, CA
- application security engineer San Francisco, CA
- IT security engineer San Francisco, CA