Lead application security reviews, threat modeling, and secure code review for new features and significant product changes.
Operate and improve SAST, DAST, and SCA tooling, triage findings, and partner with engineering teams to harden the codebase.
Plan and execute internal penetration tests against web applications, APIs, and mobile clients, and own the vulnerability management lifecycle.
ButterflyMX empowers people to automate property access, operations, and security from a single platform, serving over 20,000 properties worldwide. As a distributed, primarily remote workforce, they seek intelligent, passionate, and collaborative individuals driven by a shared commitment to excellence and innovation.
Partner with product and engineering teams to identify risks early and build security into new features.
Lead threat modeling and secure design reviews for new products and architecture changes.
Perform security-focused code reviews and maintain application security tooling integrated into CI/CD.
Jump builds AI-powered tools that help financial advisors automate meeting prep, notes, and follow-up. It is a small startup with a culture that prioritizes security and trust, and security is core to the product.
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.
Perform hands-on security testing and code review across web applications and APIs.
Conduct threat modeling and embed secure development practices into the SDLC.
Build and tune security tooling, including SAST, DAST, and CI/CD automation.
Prolific builds human data infrastructure for AI development, connecting researchers with a global participant pool to collect high-quality, ethically sourced behavioral data. They are a mission-driven company trusted by world-leading research institutions and AI labs, with a remote-first culture.
Partner with product and engineering teams to identify security risks and implement secure solutions throughout the product lifecycle.
Lead threat modeling activities, secure design reviews, and security-focused code reviews to improve development practices.
Build, maintain, and improve application security tooling and participate in incident response activities.
The partner company is a fast-moving engineering organization focused on protecting modern software products and the sensitive data they manage. The team values innovation, inclusion, and continuous improvement, and offers a collaborative culture with high ownership.
Secure AI systems and use AI to scale security, conducting security reviews and threat modeling of AI-integrated product features.
Deliver end-to-end application security reviews for high-risk features, working directly with engineering teams to surface and close risk.
Advance CI/CD pipeline security by operating and evolving security scanning controls in GitLab pipelines.
Smartsheet empowers teams to manage work and scale solutions by uniting human teams with AI agents. They are a large company with over 20 years of experience, fostering a culture where ideas are heard and contributions have real impact.
Lead deep-dive investigations and coordinate resolution across engineering teams during significant security events.
Drive coordinated response across releases, balancing risk and remediation feasibility to reduce exposure window.
Author postmortems and drive continuous improvement after product security incidents.
ServiceNow is the AI control tower for business reinvention, helping 85% of the Fortune 500 work smarter. They foster an AI-native culture with a focus on innovation, flexibility, and trust.
Lead threat modeling, architecture reviews, and code reviews for web applications, APIs, and microservices.
Actively develop and commit code to fix security flaws in Python, Go, or JavaScript/TypeScript codebases.
Implement and manage security testing tools within CI/CD pipelines to catch vulnerabilities early in the SDLC.
RunPod is the AI Developer Cloud, providing a platform for developers to experiment, train, fine-tune, deploy, and scale AI. We are a small, remote-first team that has processed over 20 billion inference requests and closed a $100M Series A in June 2026.
Triage, validate, and remediate security vulnerabilities across products, infrastructure, and internal systems.
Develop, maintain, and contribute to internal and open-source security tooling, writing production-grade code.
Improve secure development practices through code reviews, threat modeling, and security design reviews.
Tiger Data provides the fastest PostgreSQL platform for transactional, analytical, and agentic workloads. With over 2,000 customers and 3 million active databases, it is a remote-first team backed by $180 million in funding.
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.
Partner with engineering teams to perform security reviews, threat modeling, and risk assessments for product features, APIs, mobile applications, and backend services.
Develop and maintain scalable security tools and pipelines to automate vulnerability detection, dependency scanning, and security testing across the software development lifecycle.
Serve as a product security point of contact for incidents, contributing to investigation, root-cause analysis, and post-incident improvement.
Lime is a global leader in micromobility, on a mission to build a future where transportation is shared, affordable, and carbon-free. A Time Magazine 100 Most Influential Company, Lime has powered more than one billion rides across 30 countries and is a fast-paced, lean, remote-first company.
Own key security domains such as vulnerability management, application security, API security, and supply chain security.
Partner with engineering teams to integrate security into design reviews, threat modeling, CI/CD pipelines, and developer workflows.
Develop and improve security tooling and automation to reduce manual effort and leverage AI for triage and detection.
NinjaTrader is an industry-leading trading platform and futures broker that empowers traders with award-winning software and brokerage services. Since 2003, the company has grown to over 2 million users and is the number one rated futures brokerage worldwide, fostering a dynamic culture focused on social connection, professional development, and employee recognition.
Design and ship scalable security solutions to bridge the gap between security and engineering teams.
Build cooperative partnerships with product and engineering teams to integrate robust security capabilities at scale.
Drive security risk reduction through technical leadership, security reviews, and mentorship across engineering teams.
Twilio is a communications platform that delivers innovative solutions to hundreds of thousands of businesses and empowers millions of developers worldwide to craft personalized customer experiences. The company has a remote-first work culture with a strong focus on connection, global inclusion, and diverse experiences, making a global impact each day.
Own and deliver quarterly goals for your team, leading through ambiguity.
Collaborate with product, design, and analytics to articulate technical constraints and make decisions.
Foster a culture of quality and ownership through code review and design standards.
Affirm is a financial technology company that offers buy now, pay later services with no hidden fees. Zero To One is a small, autonomous innovation lab within Affirm focused on rapid prototyping and AI-powered solutions.
Define and enforce security requirements for software products, features, and components.
Design, perform, and maintain security analysis on commercial products throughout the product lifecycle.
Collaborate with cross-functional teams to perform vulnerability management and implement mitigation strategies.
symplr is revolutionizing healthcare operations with a platform that drives effective, efficient, and connected workflows. The company is remote-first with employees across the US, India, and the Netherlands, and values teamwork, customer focus, and integrity.
Conduct application security reviews including threat modeling, code review, and risk assessment for new features.
Perform and improve SAST/DAST operations, triage, validation, and remediation tracking in CI/CD pipelines.
Apply and improve AI security review processes for LLM-integrated features and agentic attack surfaces.
Monarch is a powerful, all-in-one personal finance platform designed to simplify money management. They are a fully remote team of do-ers led by experienced entrepreneurs, passionate about building a product people love.
Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub.
Improve platform reliability through deployments, monitoring, and incident response, while creating robust observability systems and data-backed insights.
Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements and resolve issues impacting users and developers.
Mozilla Corporation is the non-profit-backed technology company behind Firefox and other products, focused on making the internet better for people. With over 225 million users and wholly owned by the non-profit Mozilla Foundation, we are committed to open-source software and a people-first mission, not shareholders.
Architect, design, and implement end-to-end security solutions including firewalls, intrusion detection, and cloud security controls.
Collaborate with DevOps to integrate security into CI/CD pipelines and automate secure deployments.
Conduct regular security assessments, threat modeling, and architecture reviews to identify risks and design mitigations.
Figure is transforming capital markets through blockchain, powering real products used by hundreds of thousands of consumers and institutions. With over 170 partners and $22 billion in home equity loans originated, Figure is the largest non-bank provider of home equity financing in the U.S., recognized as one of Forbes' Most Innovative Fintech Startups in 2025.
Conduct security risk assessments of third parties, evaluating overall maturity and mapping data flows to assess supplier security risks.
Build security tooling and automation, contributing to development of internal applications and scripts.
Execute incident response efforts by identifying, investigating, and remediating security incidents.
BetterHelp is on a mission to make mental health care accessible to everyone by providing affordable online therapy. Founded in 2013, it is now the world's largest online therapy service with a network of over 30,000 licensed therapists, and it deeply invests in its team's well-being and professional development.