Senior Security Software Engineer at Pinterest | San Francisco, CA

Join Pinterest as a Senior Security Software Engineer within our Corporate Security team, where you will play a critical role in safeguarding our platform and users. In this position, you will design, develop, and implement innovative security solutions that protect against emerging threats. You will collaborate with cross-functional teams to ensure the high…

Join Pinterest as a Security Software Engineer II within our Corporate Security team. In this pivotal role, you will be responsible for developing and enhancing security solutions that protect our platform and its users. Your expertise will contribute to the implementation of innovative security measures while collaborating with cross-functional teams to ensure a secure environment.

tvScientific seeks a Senior Software Engineer to strengthen its digital advertising platform. This position centers on developing new features and enhancing current systems, all in support of the company's mission. Role overview This role involves designing, building, and improving software components that drive the platform's capabilities. The work includes both creating new functionality and refining established systems to ensure reliability and performance. Location This position is based in San Francisco, CA, with the option to work remotely from anywhere in the United States.

Join our dynamic team at tvScientific as a Senior Data Engineer. In this role, you will play a pivotal part in shaping our data infrastructure, enhancing our analytics capabilities, and driving data-driven decision-making across the organization. You will collaborate closely with cross-functional teams to implement innovative data solutions that support our strategic objectives.

Join Pinterest as a Senior Machine Learning Engineer specializing in Responsible AI. In this role, you will leverage your expertise to drive innovative applied research in machine learning, ensuring the responsible and ethical use of AI technologies. Collaborate with cross-functional teams to develop advanced algorithms and contribute to large-scale projects that impact millions of users around the globe.

Role Overview Pinterest is hiring a Security Software Engineer II focused on Detection and Response. This role can be based in San Francisco, CA or remote within the US. What You Will Do Develop and refine detection strategies to identify security threats across the Pinterest platform. Implement and improve response protocols to address incidents efficiently. Work closely with teams from different disciplines to spot vulnerabilities and strengthen defenses. Support efforts to reduce incident response times and protect the safety of Pinterest’s user community. Location This position is open to candidates in San Francisco, CA or remote within the United States.

About Pinterest Pinterest helps millions of people worldwide discover new ideas, try fresh possibilities, and collect inspiration for their lives. The company’s mission is to empower individuals to curate a life they love, starting with a talented and diverse team. Pinterest values innovation and encourages employees to fuel growth for millions. Team members are supported in turning passion into opportunity, and the company celebrates different backgrounds while offering flexibility to help everyone do their best work. AI plays a central role at Pinterest, serving as a partner to boost creativity and impact. The hiring process focuses on both foundational skills and how candidates collaborate with AI. For more on Pinterest’s approach to AI in hiring, see this overview. About tvScientific tvScientific is a leading CTV advertising platform built for performance marketers. The platform uses large-scale data and advanced technology to automate and optimize TV advertising, helping businesses achieve measurable results. Media buying, optimization, measurement, and attribution all work together in a single solution. The team behind tvScientific includes experts in programmatic advertising, digital media, and ad verification, building tools for advertisers focused on business growth. Role Overview: Staff Data Engineer The Staff Data Engineer will lead the design, implementation, and improvement of identity services and the data governance platform at tvScientific. This role is critical for maintaining data integrity, privacy, and governance across the company. The position involves working at the intersection of data engineering, identity resolution, privacy, and platform reliability. As an individual contributor, the Staff Data Engineer will help define and carry out the strategic vision for data engineering within the organization. Location San Francisco, CA, US or Remote, US

Join our dynamic team at Cloudflare as a Senior Software Engineer specializing in Security. In this role, you will work on cutting-edge security solutions that protect our customers' data and privacy. You will collaborate with cross-functional teams to design, develop, and implement robust security features while ensuring the scalability and performance of our systems. Your expertise in software engineering and security practices will be essential in driving innovation and leading projects to enhance our security posture.

tvScientific seeks a Senior Backend Engineer to support the backend infrastructure behind its advertising products. The position centers on designing and building applications that handle scale, efficiency, and security needs. Key responsibilities Develop and enhance backend systems that power advertising offerings. Collaborate with engineering, product, and design teams to deliver new features and improvements. Maintain high standards for application performance, reliability, and security. Location San Francisco, CA, US Remote, US

Role Overview Pinterest is looking for a Senior Channel Lead focused on Marketing Sites. This role shapes how Pinterest shows up online and supports major marketing efforts. The Senior Channel Lead manages strategic channel operations, works to improve user experiences, and partners with teams across the company to deliver campaigns that connect with Pinterest’s audience. What You Will Do Lead channel management for Pinterest’s marketing sites Analyze how channels perform and identify areas for improvement Develop new strategies to increase engagement and reach Oversee the execution of marketing plans from concept to launch Work closely with cross-functional partners to deliver campaigns that have real impact Location This position is based in San Francisco, CA, or can be remote within the United States.

About Pinterest:At Pinterest, we empower millions globally to discover creative ideas and realize their aspirations. Our mission is to inspire everyone to craft a life they love, and this begins with the talented individuals behind our platform.Join us for a career that ignites innovation for millions, transforms passion into professional growth, celebrates diverse experiences, and embraces flexibility for optimal performance. Creating a fulfilling career? It's possible.Pinterest is a place where Pinners find and engage with what they love. Our Core Engineering team is central to the Pinterest experience, influencing the journey of over 500 million monthly Pinners. We seek a skilled Engineering Manager II in Machine Learning who can steer our team’s technical direction and strategic planning. You will lead projects that involve creating new product experiences, developing large-scale low-latency systems, and implementing cutting-edge machine learning models that significantly impact our users and business metrics.

At Crusoe, our mission is to accelerate the abundance of energy and intelligence. We are developing cutting-edge technology that empowers individuals to create ambitiously with AI, ensuring that we do not compromise on scale, speed, or sustainability.Join us in driving the AI revolution through sustainable technology. At Crusoe, you will lead significant innovations, make a real impact, and collaborate with a team that is at the forefront of responsible and transformative cloud infrastructure.About This RoleCrusoe is establishing the foundational infrastructure for the future of AI and high-performance computing. We are in search of a talented individual who is committed to building security into our systems from the ground up. As a member of the Product Security team, you will not only secure our future but actively contribute to building it. You will work closely with engineering teams, deploy production code, design secure architectures, and establish the security foundations necessary to safeguard our platform at scale. This is a high-impact role where you will influence security practices across the company, enabling teams to choose the secure path effortlessly.We are looking for a Senior Product Security Software Engineer who excels as a software engineer with expertise in AI. You will design secure systems, create security controls that integrate smoothly into developer workflows, and elevate the security standards across our AI infrastructure and distributed systems while maintaining a pragmatic, delivery-focused approach.

tvScientific is looking for a Staff Product Manager, Activation to focus on increasing user engagement and supporting product growth. This position is based in San Francisco, CA, with remote options available across the US. Role overview This role centers on leading initiatives that improve how users interact with the platform. The Staff Product Manager will work closely with teams across the company to identify opportunities for improvement and to implement changes that make a measurable impact. Collaboration and responsibilities Partner with engineering, design, and analytics teams to refine product features Use data insights to inform decisions and prioritize enhancements Contribute to shaping product strategy and the platform’s direction Impact This position plays a key role in influencing how the product evolves and in delivering a better experience for users. The work done here will help define the future of the tvScientific platform.

Join our dynamic engineering team at tvScientific, where innovation meets technology! We are seeking a talented Software Engineer II specializing in Backend development to help us create cutting-edge solutions. In this role, you'll have the opportunity to work on exciting projects that impact our users and contribute to our mission of delivering exceptional experiences.As a Software Engineer II, you will be responsible for designing, developing, and maintaining high-performance backend systems. You will collaborate with cross-functional teams to implement scalable solutions, optimize existing code, and ensure the reliability and efficiency of our platform. If you are passionate about software development and looking for a challenging yet rewarding environment, we would love to hear from you!

Role Overview Pinterest is looking for a Senior Staff Software Engineer to join the Merchants team. This role focuses on building and improving features that support merchants and enhance the overall platform experience. What You Will Do Work closely with teams across engineering, product, and design to gather requirements and set technical direction. Design and implement scalable systems that support merchant needs and user engagement. Develop software solutions that help merchants connect with Pinterest users and grow their businesses. Contribute to the platform’s mission of inspiring creativity and discovery worldwide. Location This position is based in San Francisco, CA or Palo Alto, CA.

Join Our Team at MacroscopeAt Macroscope, we are dedicated to providing unparalleled insight into the software development landscape. Our mission is to empower leaders with the clarity they need and engineers with the time they deserve.We facilitate a deeper understanding of product and codebase evolution—identifying changes, tracking team contributions, and highlighting progress—all rooted in the ultimate truth: the code itself.Founded by seasoned entrepreneurs with a track record of launching and selling successful ventures, and seasoned executives from publicly traded tech companies, we are backed by premier venture capital firms and angel investors, including Lightspeed Venture Partners, Thrive Capital, Google Ventures, and Adverb.Your RoleWe are seeking a Senior Security Engineer to fortify and expand the security framework of Macroscope’s platform. In this pivotal role, you will design and implement robust security architectures, controls, and secure-by-default protocols across our distributed systems, infrastructure, and APIs that drive our core product.You will spearhead initiatives aimed at protecting customer data, reinforcing our production environment, and elevating security standards throughout our product offerings. Your expertise will ensure our systems adapt to customer demands while upholding enterprise-level security. Collaboration with the engineering team will be crucial as you establish best practices in identity and access management, cloud security, secure CI/CD, secrets management, vulnerability management, and production monitoring.As part of our compact team, you will work closely with founders, engineers, and designers to make architectural choices that will shape the future of our product and organization. This hands-on position is ideal for someone passionate about creating secure systems and empowering the team to innovate swiftly without compromising safety.Technology Stack: Typescript/React (frontend), Golang (backend), Temporal, Google Cloud (GCP), Postgres, Terraform, and custom-built AST “code walkers” in various languages (Golang, Typescript, Swift, Python, Rust).

Join Pinterest as a Staff Product Designer and play a pivotal role in shaping the future of our platform. You will collaborate with cross-functional teams to design intuitive and engaging user experiences. Your creativity and design thinking will be crucial in enhancing our user interface and driving product innovation.As a key member of our design team, you will have the opportunity to work on high-impact projects that reach millions of users worldwide. Leverage your expertise to create design solutions that not only meet business goals but also enhance user satisfaction.

At Thinking Machines Lab, our mission is to enhance human capabilities through the development of collaborative general intelligence. We are dedicated to creating a future where everyone can utilize AI tailored to their specific needs and aspirations.Our team consists of accomplished scientists, engineers, and innovators responsible for some of the most popular AI applications, including ChatGPT and Character.ai, along with renowned open-weight models like Mistral and influential open-source projects such as PyTorch, OpenAI Gym, Fairseq, and Segment Anything.About the RoleWe are on the lookout for a passionate Software Engineer with a focus on security to ensure our products are secure by design while facilitating rapid and ambitious product development. You will collaborate closely with product and research teams to integrate security measures into the design and development processes, and create tools and automation to maintain system safety at scale.Note: This is an ongoing opportunity, and we encourage you to express your interest. While we receive numerous applications and there may not always be an immediate match for your skills, we encourage you to apply. We consistently review applications and will reach out as new roles become available. You may reapply if you gain additional experience, but please limit applications to once every six months. We also post specific roles for particular projects or teams, and you are welcome to apply for those as well.What You’ll DoCollaborate with product and research teams to integrate security into the development lifecycle: threat modeling, design reviews, and establishing secure defaults for new features.Design and implement security controls throughout our product stack (authentication, authorization, session management, input validation, etc.).Create and maintain security tooling and automation for engineers: secure frameworks and templates, CI/CD checks, dependency management, and vulnerability detection.Work alongside researchers to identify and address AI-specific product risks, such as model abuse, prompt injection, data leakage, or misuse of capabilities.Enhance observability and detection for security-related events: access anomalies, abuse patterns, and suspicious behavior in production.

About the RoleJoin Perplexity as a dynamic Software Engineer specializing in security, where you will play a pivotal role in developing and enhancing the software, automation, and systems that drive our security operations. This position focuses on engineering innovative security tools and AI-driven agents aimed at improving our detection and response capabilities, vulnerability management, and overall security posture across our products and infrastructure.ResponsibilitiesDesign, build, and maintain software and automation solutions that enhance our detection and response capabilities, including alert enrichment, triage workflows, and investigation tools.Implement and refine internal AI agents and security bots that facilitate monitoring, investigations, reporting, and other security operations tasks.Develop and manage systems and workflows that support our bug bounty and vulnerability disclosure program, covering intake, triage, prioritization, and remediation tracking.Collaborate with product and engineering teams to perform threat modeling on new features and systems, propose mitigations, and integrate security guardrails into designs and implementations.Contribute to secure-by-default libraries, services, and patterns that empower teams to build secure features effortlessly.Integrate security signals from cloud services, endpoints, SaaS, and applications into unified pipelines and data models that bolster detection and analysis.Automate processes to minimize manual effort in incident response, containment, and remediation.Work closely with security engineers and fellow software engineers to review designs and code, continuously enhancing our security tools and platforms.QualificationsA minimum of 4 years of experience as a software engineer, particularly in developing security-related tools, platforms, or automation, or in a security engineering role with a strong emphasis on software development.Proficiency in at least one major programming language (e.g., Python, Go, or TypeScript) with experience in building production services, command-line interfaces, or internal tools.Experience with integration of security-relevant systems such as logging pipelines, SIEMs, EDR, cloud APIs, or identity platforms.Hands-on experience in threat modeling, secure design, or conducting application security reviews for services or features.Experience in operating or contributing to bug bounty or vulnerability management programs is a plus.

At Hover, we empower individuals to design, enhance, and safeguard the properties they cherish. Our innovative AI technology, built on over a decade of real estate data, provides answers to pivotal questions like, “What will it look like?” and “What will it cost?” Homeowners, contractors, and insurance professionals depend on Hover for accurate, fully-measured, and interactive 3D models of any property, all achievable through a quick smartphone scan.Driven by curiosity and purpose, we are committed to serving our customers, communities, and one another. We believe that diverse perspectives yield the best ideas and are proud to foster an inclusive, high-performance culture that promotes growth, accountability, and excellence. Supported by renowned investors such as Google Ventures and Menlo Ventures, and trusted by industry leaders like Travelers, State Farm, and Nationwide, we are revolutionizing how people perceive and engage with their environments.Why Join Hover?We are transforming the construction industry by providing modern tools for design, documentation, and project estimation—areas that have long been neglected by software solutions. We seek a Senior Software Engineer excited to tackle real-world challenges and deliver software that aids thousands of professionals in designing, scoping jobs, planning projects, and achieving superior results for homeowners.In this role, you will utilize your strong technical skills, product insight, and collaborative spirit. You will take ownership of features from concept through to user delivery, influencing our development approach and enhancing your leadership abilities beyond coding. This position is perfect for someone ready to embrace greater responsibility, drive results with cross-functional teams, and shape the technical roadmap for a high-impact group.Your ContributionsAs a Senior Software Engineer, you will work across the stack—primarily using Ruby on Rails, React, and GraphQL—with opportunities to contribute to React Native mobile applications. You will build robust, scalable systems that power Hover's core product experiences.You will lead projects and features from inception to launch, covering everything from technical discovery and design to iteration and enhancement. Your contributions will impact customer-facing workflows, including onboarding, interactive design tools, inspections, and transactional systems, as well as platform capabilities that ensure product consistency.From crafting polished user interfaces to modeling backend systems and designing APIs, you will influence how professionals interact with Hover throughout their workflows. You will work closely with product and design teams, enhance shared systems, and foster a positive engineering culture through mentorship and collaboration.