Act as the primary security partner for the Walrus team, providing architectural guidance and embedding security practices throughout the development lifecycle.
Lead security assessments for new features and contribute to ecosystem-wide security initiatives, identifying systemic risks and actionable remediation plans.
Drive a security-by-design culture, leveraging AI and automation to focus on high-impact, complex security research and mentor engineers.
Lead Application Security initiatives across HighLevel's products and engineering teams.
Conduct architecture reviews, threat modeling, and security assessments for web, mobile, and API applications.
Drive DevSecOps practices by automating security in CI/CD pipelines and managing security tooling.
HighLevel is an AI-powered, all-in-one white-label sales and marketing platform that empowers agencies and businesses to grow their digital presence. With over 1,500 team members across 15+ countries, we operate in a global, remote-first environment with a culture rooted in creativity, collaboration, and impact.
Assist in developing secure software by writing and optimising Rust code for security-critical components.
Conduct deep manual and automated code audits to identify and mitigate security vulnerabilities.
Design and implement machine learning models for automated security analysis and threat mitigation.
Parity builds core blockchain infrastructure for a decentralized web, including Polkadot and Kusama. Our remote-first global team develops open-source software and is committed to a respectful, innovative culture.
Own the technical direction, architecture, and execution of HiddenLayer’s AI Attack Simulation product.
Partner with Product and Security Research to define product strategy and translate adversarial AI techniques into scalable capabilities.
Design and build agentic workflows, tool integrations, and evaluation frameworks while mentoring engineers.
HiddenLayer protects the world’s most valuable technologies from adversarial AI attacks. They are a venture-backed startup with a remote global team, recognized for innovation and committed to diversity and inclusion.
Own and mature the enterprise security program across identity, endpoint, and SaaS security.
Implement access control, vulnerability management, and secure configuration of cloud and developer infrastructure.
Collaborate with the CISO and operations teams to deliver security approaches that protect critical assets in a web3 environment.
Solana Foundation is a non-profit based in Zug, Switzerland, dedicated to the adoption, decentralization, and security of the Solana network. They are a global team looking for talented individuals who are willing to jump right in and use their expertise to help the ecosystem build.
Design and ship security workflows combining deterministic analysis with LLM reasoning to find real vulnerabilities across languages and frameworks.
Engineer agentic pipelines and prompts that are precise, cost-aware, and trustworthy for security-critical work.
Push on hard problems in automated triage and validation to close the gap between finding and actionable fix.
Semgrep is a code security platform that helps teams catch and fix vulnerabilities before they ship. They are a venture-backed startup with a transparent culture that values respect and honesty.
Lead threat modeling and security architecture reviews with engineering teams by translating security risks into concrete development actions.
Architect, build, and maintain security tooling and integrations that make secure development the default in our CI/CD pipelines.
Design and deploy automated security testing to identify vulnerabilities early in the development process.
Abnormal Security protects the humans behind the world's most critical organizations from AI-powered cybercrime. More than 4,500 enterprises trust its behavioral AI platform.
Own production security across a multi-cloud footprint (AWS, GCP, Azure, Vercel) and secure multi-tenant SaaS, dedicated VPC, and air-gapped deployments.
Secure the Hermes Agent platform with sandboxing, kernel-level isolation, and agent identity controls, and lead SOC 2 compliance.
Harden identity management, vulnerability management, incident response, and secure software development lifecycle practices.
Nous Research builds open-source AI language models and agents, including Hermes Agent, used by consumers and Fortune 500 enterprises across various deployment environments. The company is a fast-growing startup with a high-velocity, open-source-native engineering culture that values security and pragmatism.
Take ownership of protecting product, users, and collaborators as a Security Engineer on a fast-growing AI dating platform.
Perform weekly code reviews, coordinate security audits, and maintain risk register to ensure safety of AI-generated content.
Monitor emerging AI security threats, manage IT access and device security, and run phishing simulations company-wide.
EverAI builds the world's largest AI companionship platform, redefining relationships for millions with a proprietary moderation system, EverGuard. With 50 million users in two years, the team of about 100 is enthusiastic, passionate, and hardworking, led by experienced entrepreneurs.
Partner with engineering teams to review cloud and compute architecture design changes.
Establish threat models for cloud and compute paved roads to identify security risks.
Write code for automations that support security requirements like threat detection and incident containment.
Quora operates two platforms: a global knowledge sharing platform with over 300 million monthly unique visitors, and Poe, a platform for AI language models. The company is remote-first with a culture rooted in transparency, idea-sharing, and experimentation.
United States
Unlimited PTO
12w maternity
12w paternity
Own our approach to AI and agentic security: guardrails for agentic access to cloud and data, and the security of AI/ML workloads.
Own our detection platform (Panther): detection strategy and coverage across cloud, container, and SaaS log sources.
Act as the senior security resource across cloud security and security reviews, mentoring teammates.
SmarterDx is a clinical AI platform that helps health systems capture revenue and improve quality metrics using clinically-validated EHR data. The company is a remote-first team with a small, collaborative engineering culture focused on making healthcare more accurate and effective.
Design and implement security controls for AI applications, LLMs, and ML infrastructure.
Develop threat models, incident response, and red-team exercises for AI-specific attacks.
Collaborate with engineering and data science teams to embed security throughout the AI lifecycle.
They secure AI and machine learning systems against advanced threats, including prompt injection and adversarial attacks. This collaborative, inclusive technology firm offers significant career growth opportunities.
Partner with engineering teams to perform security reviews, threat modeling, and risk assessments for product features and APIs.
Develop and maintain scalable security tools and automation pipelines for vulnerability detection across the SDLC.
Contribute to security architecture reviews and support bug bounty programs and incident response.
Lime is a global leader in micromobility on a mission to make transportation shared, affordable, and carbon-free. A Time Magazine 100 Most Influential Company, Lime has powered over a billion rides in 30 countries and is a fast-paced, lean, remote-first team.
Define security requirements and design application architectures following a secure-by-default approach.
Conduct threat modeling, code reviews, and penetration testing on cloud-based web and mobile apps.
Implement, manage, and automate SAST/DAST/SCA security controls and WAF rules to enforce protection at scale.
Prima is a motor insurance company that uses data and technology to provide a great experience for drivers. They are trusted by over 5 million drivers and have over 350 engineers in their Engineering department, fostering a culture of curiosity and collaboration.
Analyze complex Web3 security cases to extract recurring attack patterns and build comprehensive SOPs.
Proactively identify operational gaps and propose systematic improvements to enhance team efficiency.
Partner with AI agents to crystallize security insights into a high-quality knowledge base for faster response.
Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. Trusted by over 300 million people across 100+ countries, we are a fast-paced, user-centric organization with a flat structure and a focus on innovation.
Drive security engineering initiatives and embed security across engineering teams.
Manage threats and respond to incidents with advanced automation and AI agents.
Architect secure solutions for AI/ML workloads and mentor team members.
EarnIn is a pioneer of earned wage access, building products that deliver real-time financial flexibility for those living paycheck to paycheck. They have an experienced leadership team and world-class funding partners, and are growing fast with a healthy core business.
Establish secure by design standards and target state security architecture across product development, covering threat modeling, secure design review, and vulnerability management.
Build a formal vulnerability management program encompassing traditional and AI-specific threats like prompt injection, model manipulation, and data exfiltration.
Provide senior technical leadership and build trusted partnerships across Product, Engineering, and Security teams.
Semperis is a cybersecurity company on a mission to be a Force for Good, protecting identity and data. We are one of America's fastest-growing cybersecurity companies and have been recognized as a top workplace.
Design and evolve security architecture across cloud infrastructure, applications, and CI/CD pipeline.
Conduct threat modeling, architecture reviews, and define secure design patterns for GCP-based environment.
Evaluate emerging technologies like AI and GenAI platforms to identify risks and define secure adoption patterns.
Airship provides a no-code, AI-powered platform for brands like Alaska Airlines and BBC to create personalized cross-channel customer experiences. The company fosters a digital-first, flexible remote culture with a collaborative team across time zones.
Lead threat modeling and secure design reviews across C++, Go, and Rust
Build and tune application security testing (SAST, SCA, secret scanning, DAST) and fuzzing harnesses
Operate PSIRT and build security champions program to raise the security bar
Redpanda is a unified platform for agent-data interaction, combining streaming, SQL analytics, and intelligent connectivity with governance for enterprise AI agents. It is a fast-moving, people-first organization with a small, high-trust security team and team members across the globe.
Proactively identify and drive security improvements across the product and platform.
Partner with engineering teams to threat model new features and review designs early in development.
Build and improve security tooling, libraries, and workflows to make secure development the default path.
Fellow is an AI meeting assistant that helps teams record, transcribe, summarise, and act on their meetings. We are a Series A company backed by major venture firms, with a remote-first culture and a growing team.