Cloud Infrastructure Security Engineer

Join Our Innovative TeamThe Applied Engineering team at OpenAI is dedicated to bridging the gap between research, engineering, product, and design, delivering cutting-edge AI technology to consumers and businesses alike.As a pivotal member of our team, you will manage the core infrastructure that underpins products such as ChatGPT and our API. This includes overseeing our Kubernetes clusters, infrastructure deployment, networking stack, cloud abstractions, and more.Our mission is to learn from our deployments and ensure the responsible and safe use of AI technology. We place a higher priority on safety than on unchecked growth.About Your RoleAs a vital contributor to the cloud infrastructure team, you'll be responsible for constructing and maintaining infrastructure abstractions that facilitate swift and scalable product delivery.This position is based in our San Francisco, CA office.Your Responsibilities:Architect and develop robust development and production platforms that ensure reliability and security at scale.Optimize our infrastructure for scalability to meet future demands.Foster a diverse, equitable, and inclusive work culture that encourages open communication and challenges conventional thinking.Participate in an on-call rotation to maintain the reliability of the systems we build and respond to critical incidents as necessary.You Will Excel in This Position If You:Possess over 5 years of experience in building core infrastructure.Have extensive experience with orchestration systems such as Kubernetes at scale.Are skilled in creating abstractions over cloud platforms.Take pride in developing and managing scalable, reliable, and secure systems.Thrive in environments characterized by ambiguity and rapid change.This role is exclusively located at our San Francisco headquarters. We offer relocation assistance to qualified candidates.

About Crusoe Energy Systems Crusoe Energy Systems manages every layer of AI infrastructure, from energy generation to advanced computational resources. The team focuses on making AI infrastructure more efficient and environmentally conscious, addressing the growing global demand for computing power. Based in San Francisco, Crusoe brings together experts in energy, manufacturing, data center construction, and cloud services. Role Overview: Senior Software Engineer - Cloud Infrastructure This Senior Software Engineer position centers on designing and building cloud infrastructure management systems for Crusoe Cloud, a vertically integrated, AI-focused platform. The engineer will help deliver complete solutions that support the company’s business goals, including system planning, monitoring, deployment, and operations. The role involves hands-on work developing platforms, tools, and frameworks that emphasize reliability, scalability, operational efficiency, and ease of use. As Crusoe Cloud grows, this engineer will play a key part in streamlining infrastructure planning and management processes. What You Will Do Work closely with cross-functional teams to design and implement infrastructure management software and availability platforms for customers using Crusoe’s AI infrastructure. Help improve the reliability, scalability, and security of systems and platforms. Develop workflows that support business objectives and performance targets. Build and maintain high-performing, highly available cloud solutions to meet expanding infrastructure needs. Who Thrives Here Engineers who enjoy solving complex problems, move quickly, and want to work alongside a diverse, supportive team will find this role rewarding. Crusoe values collaboration and a shared drive to advance AI infrastructure. Location San Francisco, CA - US

About UsAt Sierra, we are revolutionizing the way businesses engage with their customers by building a cutting-edge platform that harnesses the power of AI. Our headquarters is located in the vibrant city of San Francisco, with additional offices expanding in Atlanta, New York, London, France, Singapore, and Japan.Our company culture is deeply rooted in our core values: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These principles guide our actions and foster an environment where innovation thrives.Sierra was co-founded by visionary leaders Bret Taylor, who currently serves as the Board Chair of OpenAI and has a rich history with Salesforce and Facebook, and Clay Bavor, who previously led Google Labs and spearheaded initiatives like Google Lens and Project Starline.Your RoleAs a Software Engineer focusing on Infrastructure at Sierra, you will play a pivotal role in designing, constructing, and maintaining the foundational systems that empower our AI platform. Your expertise will ensure that our infrastructure is not only secure and reliable but also scalable, allowing product teams to execute their work with agility and confidence.Guarantee the reliability, scalability, and performance of our platform and LLM inference serving in response to increasing traffic demands.Develop and oversee cloud infrastructure using Terraform to create secure, scalable, and reproducible environments.Establish and manage a self-service infrastructure platform to empower engineering teams in deploying and operating services independently.Take ownership of and improve CI/CD pipelines and release management processes, facilitating rapid and reliable deployments across Sierra’s platform.Design and manage distributed systems utilizing distributed databases, retrieval systems, and machine learning models.Develop and sustain core data serving abstractions along with essential authentication and security features (SSO, RBAC, authentication controls).Effectively navigate and integrate our technology stack with enterprise customer environments in a scalable and maintainable manner.

About UsAt Imprint, we are revolutionizing the world of co-branded credit cards and innovative financial solutions, focusing on smarter, more rewarding, and brand-first experiences. We collaborate with renowned brands such as Crate & Barrel, Rakuten, Booking.com, H-E-B, Fetch, and Brooks Brothers to establish modern credit programs that enhance customer loyalty, unlock savings, and stimulate growth. Our robust platform integrates advanced payment technologies, intelligent underwriting, and a seamless user experience, enabling brands to offer impactful financial products without the complexities of becoming a bank.Co-branded credit cards represent over $300 billion in U.S. annual spending, yet many are still managed by outdated banking systems. Imprint stands as the modern alternative—flexible, technology-driven, and tailored for today’s consumers. Supported by notable investors like Kleiner Perkins, Thrive Capital, and Khosla Ventures, we are assembling a world-class team dedicated to reshaping payment methods and driving brand growth. If you thrive in fast-paced environments, enjoy tackling complex challenges, and aspire to make a significant impact, we would be delighted to meet you.Discover more about us on Imprint's Technology Blog.The TeamThe Tech Platform Engineering Team at Imprint is pioneering the democratization of access to advanced technologies, empowering teams across our organization to innovate and excel. Our commitment to redefining the Fintech landscape drives us to build secure, highly available infrastructures while equipping our engineers with comprehensive development tools, allowing them to rapidly create world-class products.Your RoleDesign, build, and manage cloud and web infrastructure with a strong emphasis on security, reliability, and scalability.Implement and maintain infrastructure components across computing, networking, and data platforms.Adhere to security best practices in cloud infrastructure, ensuring proper access control, network isolation, and secure communication between services.Monitor system health and engage in incident response, root cause analysis, and reliability enhancements.Collaborate with platform, security, and product engineers to deliver safe and efficient infrastructure solutions.

At Sift, we are revolutionizing the way cutting-edge machines are constructed, tested, and managed. Our innovative platform provides engineers with real-time visibility into high-frequency telemetry, effectively removing bottlenecks and facilitating quicker, more dependable development.Sift originated from our experience at SpaceX, contributing to projects like Dragon, Falcon, Starlink, and Starship, where the demands of scaling telemetry, debugging flight systems, and ensuring mission reliability necessitated a new kind of infrastructure. Founded by a talented team from SpaceX, Google, and Palantir, Sift is tailored for mission-critical systems where precision and scalability are imperative.As one of the pioneering engineers at Sift, your role will extend beyond just coding—you will play a crucial part in defining the architecture, shaping the product, and influencing the culture of a company dedicated to addressing real engineering challenges. If you're eager to take on intricate technical obstacles and build foundational systems that support complex machines from the ground up, we would love to connect with you.

Who We AreServal is an innovative AI-driven automation platform redefining operational efficiency for enterprises. Our intelligent agents seamlessly comprehend and execute real-world workflows, replacing outdated manual processes with adaptive, self-learning software. Since our inception in early 2024, we have garnered the trust of industry leaders such as General Motors, Notion, Perplexity, Vercel, Mercor, LangChain, and Verkada, streamlining high-volume operational tasks across their organizations.At the heart of Serval is a cutting-edge agentic AI platform that transforms natural language into actionable workflows. Our agents not only respond to queries but also reason, act across various systems, and continuously enhance their performance. What started as a solution for operational tasks has rapidly expanded into a versatile AI automation layer utilized across IT, HR, Finance, Security, Legal, and Engineering sectors.Our mission is to eradicate repetitive, manual tasks within enterprises, empowering teams through intelligent automation. In the long run, we aim to establish a universal AI operations layer—a system of agents that integrates across business functions, maintaining the momentum of modern companies.We are proud to be backed by renowned investors including Sequoia Capital, Redpoint Ventures, Meritech, First Round, General Catalyst, and Elad Gil, and founded by seasoned product and engineering leaders from Verkada.Role OverviewAs a Senior Software Engineer in Infrastructure at Serval, you will be pivotal in developing and scaling the core systems that empower our AI agents and workflow automation platform. A crucial aspect of this role involves enabling and supporting self-hosted deployments for enterprise clients needing on-premises or private cloud environments. We are looking for engineers with profound expertise in distributed systems, infrastructure-as-code, production operations, and customer-facing support, who aspire to influence the technical architecture of a rapidly evolving platform.What You'll DoDesign, implement, and operate large-scale distributed systems that power Serval's AI agents, workflow orchestration, and data pipelines.Create and maintain Terraform modules to provision and manage cloud infrastructure across AWS, GCP, or Azure environments.Develop and sustain deployment packages, installation scripts, and infrastructure templates, enabling customers to self-host Serval in their own environments.Provide technical support and guidance to enterprise customers during installation and deployment phases.

Netic is revolutionizing the essential services sector with our AI-driven revenue engine, empowering the backbone of the American economy.With $43M in funding from leading investors such as Founders Fund, Greylock, Hanabi, and Dylan Field, who spearheaded our Series B, we have enabled our clients to secure hundreds of thousands of jobs across various service industries in North America. Today, numerous companies thrive entirely on an AI-first model powered by Netic.As a member of our team consisting of innovative builders from top organizations such as Scale, Databricks, HRT, Meta, MIT, Stanford, and Harvard, you will be at the forefront of integrating frontier AI into the physical economy, where challenges are complex, data is intricate, and impacts are immediate and substantial.In the role of a founding Product Infrastructure Engineer, you will design and scale the crucial infrastructure that supports our autonomous AI agents, addressing real-world challenges with significant, tangible outcomes. You will work alongside a passionate team of builders to develop infrastructure and processes from scratch, utilizing state-of-the-art cloud and orchestration technologies. If you excel in dynamic, ambiguous settings and are eager to set new benchmarks in the agentic domain, this is your chance to make a lasting impact.

Join our dynamic team at leverdemo-8 as a Software Engineer specializing in Cloud Infrastructure. We are passionate about reimagining the hiring landscape and are looking for talented engineers to enhance our YugaByte DB for enterprise applications. Your expertise will contribute to optimizing orchestration support across major public clouds including AWS, Google Cloud, and Azure, as well as Kubernetes services and private data centers. You'll play a crucial role in the control and manageability plane of YugaByte and collaborate with tools such as Prometheus and Alert Manager to ensure seamless infrastructure management.Please note that this position is part of Lever's testing environment; we kindly ask you not to apply for this role.

Future builds digital personal training experiences that connect people with expert coaches through a seamless app. Since 2017, the company has grown from an idea in a San Francisco café to the largest provider of personal training sessions in the US. In January 2025, Future merged with Autograph, founded by Tom Brady, and is expanding its reach through new partnerships and AI-driven coaching tools. Future continues to invest in technology, grow its coaching roster, and form partnerships with leading athletes. The team is focused on shaping the future of fitness by making expert coaching accessible to more people. Role overview This remote Cloud Infrastructure Engineer position centers on designing, building, and maintaining the cloud platform that underpins Future’s products. The role is hands-on and impacts daily operations for engineering teams, focusing on reliability, security, and efficiency. What you will do Develop and maintain infrastructure-as-code best practices using AWS CDK, keeping cloud resources version-controlled, repeatable, and peer-reviewed. Design and manage AWS infrastructure components, such as ECS, RDS Aurora, API Gateway, S3, and networking, with attention to reliability, performance, and cost efficiency. Build and support an observability stack, including structured logging, distributed tracing, and monitoring, to provide insights into system performance. Requirements Strong experience with AWS and a focus on building resilient, automated systems. Commitment to operational excellence, security, and cost efficiency. Emphasis on enabling engineering teams to deliver work quickly and confidently.

Join Netic, the cutting-edge AI revenue engine powering essential services that form the backbone of the American economy.Backed by $43 million in funding from top investors like Founders Fund, Greylock, Hanabi, and Dylan Field, we have empowered our clients to secure hundreds of thousands of jobs across various service industries in North America. As a pioneer in AI-driven solutions, we are witnessing the emergence of companies operating entirely on our AI-first platform.As an Agent Infrastructure Engineer, you will be at the forefront of architecting and scaling the core framework that underpins our autonomous AI agents, addressing complex real-world challenges with immediate and significant impacts. Collaborate with a passionate team of innovators from renowned companies such as Scale, Databricks, HRT, Meta, MIT, Stanford, and Harvard, as we bring frontier AI to the physical economy where the stakes are high, and the data is intricate.If you thrive in dynamic, fast-paced environments and are eager to set new benchmarks in the agentic space, seize this opportunity to make your mark!

Join our innovative team at Astranis as a Senior Software Engineer specializing in Infrastructure. In this role, you will be responsible for designing, implementing, and maintaining robust infrastructure solutions that support our cutting-edge satellite technology. Your expertise will play a crucial role in enhancing the reliability and scalability of our systems.

About MiddeskMiddesk simplifies collaboration for businesses by transforming identity verification processes. Since our inception in 2018, we have replaced outdated, manual methods with an efficient platform that provides seamless access to comprehensive and current data. Our services enable companies across various sectors to confidently verify business identities, accelerate customer onboarding, and mitigate risks throughout the customer lifecycle.As a proud Y Combinator graduate, Middesk is supported by notable investors such as Sequoia Capital and Accel Partners. We have recently been featured on Forbes’ Fintech 50 List and recognized as a leader in business verification by the digital identity strategy firm, Liminal.About the Middesk Engineering Team:At Middesk, we prioritize delivering value to our customers through a concept we call 'Velocity'. This term embodies our commitment to achieving meaningful outcomes rather than merely focusing on code delivery speed. We believe that exceptional products arise from a blend of technical expertise and a profound understanding of our customers’ needs. Our engineering team is composed of humble, self-driven individuals who are dedicated to addressing even the most complex challenges faced by our clients. At Middesk Engineering, our mission is to put customers first.Your Role:We are seeking a talented Infrastructure Engineer to join our DevSecOps team. Your mission will be to empower engineering teams by providing secure, cost-effective, and scalable platform capabilities that enhance software delivery, improve developer experience, and ensure compliance with industry standards. You will be responsible for developing the tools and infrastructure necessary to scale our development and production systems. Your contributions will directly impact the entire Software Development Lifecycle and overall developer experience (DevEx). The systems you will support include Kubernetes, cloud infrastructure, observability, and local development environments.Our work environment is hybrid, requiring a presence in our San Francisco or New York City offices for 2 days each week. Candidates must reside within a reasonable commuting distance as we value in-person collaboration while also supporting flexible work arrangements.Key Responsibilities:Architect, build, and scale cloud infrastructure and orchestration systems (e.g., Kubernetes, Terraform, CI/CD).Take ownership of and enhance developer experience (DevEx) tools and workflows, spanning from local development to deployment.Develop observability systems that offer insights into performance, reliability, and usage metrics.

Join Our Innovative TeamAt OpenAI, security is the cornerstone of our commitment to ensuring artificial general intelligence serves all of humanity. The Identity Infrastructure Engineering team is pivotal in this mission, crafting robust identity and access management solutions that safeguard our model weights, customer data, and essential systems across diverse cloud environments. Collaborating closely with teams across Applied Engineering, Research, IT, and Security, we deliver a secure and scalable platform that empowers permissioning, orchestration, and groundbreaking AI research.Your RoleAs a Software Engineer on our Identity Infrastructure Engineering team, you will play a crucial role in designing, deploying, and managing foundational security tools and infrastructure. This position involves leveraging a wide array of technologies to support multi-cloud deployments, ensuring our researchers and engineers can securely build, test, and scale transformative AI systems. We seek individuals who are technically adept, collaborative, and passionate about integrating secure-by-default principles throughout our technology stack.We invite Software Engineers eager to address challenges in:Identity & Access Management: Develop and sustain systems and interfaces that efficiently manage user and service identities, guaranteeing consistent, fine-grained access controls across various cloud providers and internal services.Multi-Cloud Security: Architect and implement tools that protect model weights, proprietary data, and sensitive assets, seamlessly operating within AWS, Azure, GCP, and future cloud environments.Automation & Tooling: Create robust frameworks, APIs, and CLI tools that automate ongoing security tasks (such as credential provisioning and rotation), allowing teams to focus on AI innovation without compromising security.In this position, you will:Develop new features for our IAM platform that integrate seamlessly with evolving cloud services, enabling teams to operate efficiently while adhering to security best practices.Lead security innovations by designing tools, processes, and frameworks that enhance our infrastructure.This role is primarily based in San Francisco, Seattle, or New York City, with remote work options considered. We embrace a hybrid work model, requiring three days in the office weekly, and provide relocation assistance for new hires.

Role Overview mercor is hiring a Cloud Infrastructure Security Engineer in San Francisco. This role focuses on protecting cloud systems, maintaining data integrity, and applying security protocols to guard against new threats. Collaboration with cross-functional teams is central to designing and maintaining secure cloud environments.

Join Convex in revolutionizing application development!At Convex, we are on a mission to redefine how software is constructed on the Internet. Our innovative platform enables developers to create swift, dependable, and dynamic applications without the need for a backend team. We offer a comprehensive full-stack application platform, meticulously designed with abstractions for databases, computing, and backend services, allowing both developers and LLMs to innovate rapidly, ensuring products that are scalable and maintain simplicity throughout their lifecycle.About Our Team:Our Convex team comprises engineers who have architected and built some of the largest backends globally, managing exabytes of data and millions of transactions per second. We are a friendly, collaborative group of passionate individuals who thrive on in-person collaboration in our San Francisco office.Position Overview:As Convex evolves, we are seeking outstanding senior or staff-level engineers to help us architect and sustain the future of our infrastructure at scale. If you have a passion for distributed systems and a robust background in designing and managing web infrastructure, we want to connect with you!We value robust architecture, effective collaboration, and simplicity. Our team embraces high ownership and places significant emphasis on operational excellence. This role is not solely focused on operations; we seek individuals who are dedicated to designing and constructing systems in the most effective manner possible, especially in a startup environment.Your Responsibilities:Architect, construct, and oversee Convex’s global cloud infrastructure.Analyze and enhance the performance and reliability of our systems.Independently prioritize projects, collaborating closely with the engineering team and CTO.Establish best practices and reliability standards as we expand our team and systems.Develop sophisticated systems and database code.Engage with feedback from leadership regarding seeking simpler and more elegant solutions.What We Value:A strong enthusiasm for distributed systems and backend infrastructure.A collaborative spirit and a desire to grow with the team.A commitment to best practices and maintaining high standards in engineering.

Astranis is revolutionizing satellite technology for high orbits, pushing the boundaries of human exploration into the solar system. Our advanced satellites deliver dedicated, secure networks to a diverse clientele that includes large enterprises, sovereign governments, and the US military. With five satellites successfully in orbit and a robust pipeline of launches ahead, we are addressing a significant backlog of over $1 billion in commercial contracts.Astranis is the trusted satellite communications partner for clients demanding exceptional uptime, data security, network visibility, and tailored solutions. Having secured over $750 million in funding from prestigious investors such as Andreessen Horowitz, Blackrock, and Fidelity, we proudly employ a talented team of 450 engineers and innovators. Our state-of-the-art headquarters spans 153,000 sq. ft. in Northern California, USA.Position: Cloud Infrastructure EngineerAs a Cloud Infrastructure Engineer at Astranis, you will play a critical role in designing and implementing infrastructure that is as essential as the satellites it supports, ensuring 24/7 operational reliability. Your expertise will underpin the platforms that Mission Operators rely on to effectively command our satellites and maintain situational awareness. You will also influence our strategic approach to leveraging cloud technology for hosting key applications and enhancing developer productivity.This position supports both commercial and U.S. Government initiatives.

Databricks is looking for a Senior Software Engineer focused on Compute Infrastructure in San Francisco, California. This position centers on building and improving compute architecture to support greater performance and scalability across Databricks' platform. What you will do Develop and optimize compute infrastructure to handle demanding data processing and analytics workloads. Work closely with teams from different disciplines to deliver reliable, high-quality solutions for customers. Impact Your contributions will help define how data processing and analytics evolve at Databricks. The work directly supports customers’ ability to scale and perform complex tasks in the cloud. Who we’re looking for Strong background in cloud technologies and compute systems. Enjoys tackling complex technical challenges. Collaborative approach to problem-solving with cross-functional teams.

Join Our Mission at WatershedWatershed is a pioneering enterprise sustainability platform, trusted by industry leaders such as Airbnb, Carlyle Group, FedEx, Visa, and Dr. Martens. Our platform empowers organizations to manage climate and ESG data effectively, generate audit-ready metrics for voluntary and regulatory compliance including CSRD, and actively pursue significant decarbonization efforts. We are seeking passionate team members who are eager to contribute to product development in a mission-driven startup environment, and who are excited to help shape a thriving team culture.With offices in San Francisco, New York, Denver, London, Paris, Berlin, Sydney, Mexico City, and a robust remote workforce across the US and Europe, we aim to create a dynamic and inclusive workplace that welcomes your participation!Your RoleAre you passionate about developing both cutting-edge technology and high-performing teams? Watershed is scaling its world-class engineering team, and we’re looking for an Engineering Manager to lead our Cloud Infrastructure team. This team plays a critical role in enabling our growth by managing the foundational infrastructure that supports Watershed’s multi-region deployments on GCP.We seek a leader who will articulate an inspiring vision for the team, tackle a diverse array of complex challenges, and empower each engineer to achieve their best work. As one of the initial managers in a rapidly growing organization, you will not only influence engineering culture but also the broader culture at Watershed. Together with our leadership and HR teams, you will help foster a diverse, inclusive, and dedicated workforce.Key ResponsibilitiesLead the Cloud Infrastructure team as the primary manager, balancing people management, technical leadership, and product strategy.Inspire and guide the team through significant growth phases ($100M+), including recruiting new talent and adapting the team's vision and objectives as business needs evolve.Collaborate closely with engineering peers and cross-functional partners, including Security and Finance, to align direction, set priorities, and ensure seamless collaboration.

Role overview Crusoe Energy Systems, Inc. seeks a Staff Cloud Infrastructure Engineer to shape and support its cloud infrastructure, with a primary focus on VMware environments. This position is located in San Francisco, CA. What you will do Design, implement, and maintain scalable cloud infrastructure using VMware technologies. Work closely with team members to support cloud operations for Crusoe's energy solutions. Apply technical expertise to improve reliability and efficiency throughout cloud systems. The team Join a group of engineers committed to building and maintaining cloud platforms that support innovative energy projects.