Infrastructure Security Engineer

Join our innovative team at Xai as an Infrastructure Security Engineer. In this role, you will be instrumental in safeguarding our infrastructure, ensuring that our systems are secure against evolving threats. You will collaborate with cross-functional teams to implement security measures and best practices.

Product Security Engineer, Cloud & InfrastructurePalo Alto, CA (on-site)About 1XAt 1X, we are pioneering the future of work by developing humanoid robots that collaborate with humans to address labor shortages and foster abundance.The RoleAs a Product Security Engineer specializing in cloud and infrastructure, your role will be crucial in designing and maintaining secure architectures, building cloud-native security services, and safeguarding CI/CD pipelines. You will play a key part in ensuring secure communications and protecting data across 1X’s robotics platforms.Your ResponsibilitiesCollaborate closely with engineering teams to develop and maintain security-critical cloud services.Implement infrastructure-as-code security practices for consistent and secure deployments.Design and manage identity and access systems enforcing just-in-time and least-privilege access.Secure CI/CD pipelines against poisoning and credential theft while ensuring artifact integrity.Create and manage cloud-native security services for device authentication, data protection, and secure communication.Architect secure cloud networks through VPC segmentation, traffic filtering, and access control.Configure and oversee cloud security posture management (CSPM) tools to identify misconfigurations and support incident response across environments.

Join Palantir Technologies as a Product Infrastructure Security Engineer, where you will play a pivotal role in safeguarding our innovative software solutions. Your expertise will help us ensure the security and integrity of our products, protecting sensitive data while driving our mission forward.

Role Overview Pylon is hiring an Infrastructure Engineer, Foundation, based in Palo Alto. This role focuses on designing, implementing, and maintaining infrastructure that supports the company’s core products and services. The work directly supports operational reliability and technical growth across the organization. What You Will Do Design and build infrastructure solutions to support Pylon’s main offerings Maintain and improve existing systems to ensure reliability and performance Work with teams across engineering and other functions to integrate and support infrastructure needs Identify opportunities to optimize system performance and scalability Who We’re Looking For Proactive approach to problem solving and infrastructure development Interest in building scalable systems and improving performance Comfort working closely with cross-functional teams

As a Lead Security Engineer specializing in AI and Product Security at Nubank, you will play a pivotal role in safeguarding our innovative financial solutions. Your expertise will help us develop and implement robust security measures that protect sensitive data and maintain the trust of our users. You will lead a dynamic team, driving security initiatives and collaborating closely with various departments to integrate security protocols into our product development lifecycle.

Join Mashgin as an Infrastructure Software Engineer and be a part of our innovative team dedicated to enhancing the efficiency of our cutting-edge technology. You will play a critical role in designing, developing, and maintaining robust infrastructure systems that power our products and services. Your expertise will help us streamline operations, improve performance, and ensure reliability across our platforms.

At Ricursive Intelligence, we are pioneering advancements in artificial intelligence by creating self-improving systems with a focus on innovative chip design. Our mission is to revolutionize chip development, effectively bridging the gap between AI and the hardware that supports it, thereby accelerating the journey towards artificial superintelligence.We are seeking exceptional engineers who are passionate about tackling a wide range of challenges in scaling, low-level optimization, and the fundamental infrastructure necessary for large language model training and inference.

Join our innovative team at xAI as an Application Security Engineer, where you will play a vital role in safeguarding our cloud-native applications throughout the software development lifecycle. You will focus on ensuring the security of code, CI/CD pipelines, and the integration of emerging AI technologies. As part of a small, driven group, your contributions will directly impact our mission to create AI systems that enhance humanity's quest for knowledge.

Role overview BitGo is looking for a Senior Infrastructure Engineer in Palo Alto, California. This role focuses on building and maintaining the company's infrastructure to support reliable, high-performing services. What you will do Work with teams across the company to design, implement, and improve infrastructure systems Ensure systems remain highly available and deliver strong performance Apply cloud technologies and infrastructure as code practices to support and enhance services What we look for Experience with cloud platforms Strong background in infrastructure as code Ability to collaborate with engineers from different disciplines

Senior Software Engineer, Infrastructure About Ladder At Ladder, we identified a significant issue in the life insurance sector: the lengthy application process, the excessive paperwork, and the numerous in-person meetings with agents. Motivated by personal loss, our CEO, Jamie, set out to simplify the process of obtaining essential coverage for families. We innovated real-time underwriting using AI, transforming the months-long life insurance application into a matter of minutes. Our user-friendly digital experience ensures instant decisions and has garnered exceptional user reviews, with over $74 billion in coverage issued. About the Role We are in search of a Senior Software Engineer who will enhance developer productivity within Ladder's engineering team. You will take charge of modernizing our CI/CD pipelines, build systems, and developer tools, while also contributing to the robustness of our cloud infrastructure and data platform. The ideal candidate will possess a proven track record in software engineering, demonstrate leadership qualities, and have a thorough understanding of engineering infrastructure. This position is remote, available in any of the 22 states where Ladder is hiring: AZ, CA, CO, CT, FL, GA, KS, MA, MD, MN, NC, NH, NJ, NV, NY, OH, OR, PA, TX, VA, WA, WI. Please note that Ladder is not sponsoring or transferring OPT or H1-B visas at this time. How You’ll Make a Difference As a senior engineer in our team, your responsibilities will extend beyond coding; you will influence our platform strategy. Your contributions will include: Enhancing developer velocity across the engineering organization by measuring and optimizing the developer workflow, which encompasses build times, test parallelization, deployment speeds, and daily tooling. Shaping the architecture of Ladder’s production infrastructure by evaluating design trade-offs and making impactful technical decisions, such as transitioning from custom monitoring tools to native cloud provider integrations or redefining data pipeline rebuild processes in response to upstream logic changes. You will have the insight to see the holistic view across systems and determine where to allocate engineering resources effectively. Engaging in incident response for infrastructure issues, leading retrospectives, and ensuring actionable follow-through on resolutions.

Join a Transformative CompanyAt Palantir, we develop cutting-edge software that empowers organizations to make data-driven decisions and optimize their operations. Our platforms enable partners to tackle critical challenges—from developing life-saving pharmaceuticals to predicting supply chain disruptions and locating missing individuals.About the RoleAs a key member of our Application Security Team, you will play an instrumental role in safeguarding vital information and ensuring the security of our software products. We are committed to enabling our developers to be agile and produce secure applications, especially given the high-stakes nature of our work in defense, intelligence, and commercial applications.Your responsibilities will include:• Product Security Assessments. Conduct comprehensive security evaluations of our product and service portfolio, utilizing whitebox, greybox, and blackbox testing methodologies. Collaborate with offensive security teams and engineering departments to fortify our offerings against sophisticated threats.• Architectural Security Expertise. Serve as the primary security advisor for product architects and engineers. Engage in threat modeling, risk assessments, and the implementation of security controls to mitigate identified vulnerabilities, ensuring our designs adhere to a secure-by-default approach.• Strategic Security Leadership. Take ownership of transformative security initiatives that influence the entire organization. Your contributions may include implementing software supply chain security measures, establishing hardware-backed GPG key signing protocols, and driving security automation efforts.• Vulnerability Discovery and Remediation. Innovate methods for identifying and addressing security weaknesses in our products. Utilize static and dynamic analysis, security scanning tools, and collaborate with our incident response team to tackle product security challenges.This position offers extensive influence, autonomy, and the resources to effect substantial security enhancements across Palantir. We welcome diverse backgrounds and experiences in candidates, with an emphasis on curiosity, persistence, and a commitment to excellence.

Obsidian Security seeks a Principal Product Security Engineer to lead and expand its product security program. This senior role centers on securing SaaS products, cloud infrastructure, CI/CD pipelines, and related services. The position requires strong technical expertise, sound judgment, and the ability to guide teams across the organization. Key responsibilities Lead and develop the product security program for Obsidian’s SaaS offerings and infrastructure Collaborate with Engineering, Product, GRC, IT, DevOps, SRE, and Platform teams to integrate security throughout the software development lifecycle Advance security practices for cloud and infrastructure Promote secure design principles and conduct threat modeling Champion automation in detection, response, vulnerability management, and security testing Reporting structure This position reports directly to the Head of Security. Who will succeed The role is well suited to an experienced product security leader comfortable in a growing cybersecurity startup, eager to make a real impact on the security of products, customers, and the wider organization. Location This role is based in Palo Alto, CA.

Join xAI’s innovative security team as a Senior Network Security Engineer, where you will leverage your extensive knowledge in network security technologies, particularly in firewalls, VPNs, and routing protocols. Engage in a fast-paced environment that values adaptability and problem-solving skills, while ensuring the security of our cutting-edge AI infrastructure. Your role will involve implementing robust security measures, managing firewall configurations, and developing forward-thinking network security solutions that address our evolving challenges.

Founded in 2017, Obsidian Security is dedicated to addressing a vital need in the digital landscape: safeguarding SaaS applications where modern enterprises operate—such as Microsoft 365, Salesforce, and many others. With the backing of esteemed investors like Greylock, Norwest Venture Partners, and IVP, we have established a comprehensive SaaS security platform designed to mitigate risks, detect and respond to threats, and thwart breaches at their origin. Our team comprises seasoned leaders who have helped shape the fields of endpoint and identity security at renowned companies like CrowdStrike, Okta, Cylance, and Carbon Black. We are currently redefining SaaS security in the age of agentic AI. Obsidian Security is trusted by global enterprises, including Snowflake, T-Mobile, and Pure Storage, protecting over 200 organizations across North America, Europe, the Middle East, Southeast Asia, Australia, and New Zealand—many of which are among the world’s largest Fortune 1000 and Global 2000 companies. With robust global momentum, an expanding partner ecosystem featuring SentinelOne, Databricks, and Google Cloud, and a significant fundraising round on the horizon, we are rapidly scaling towards long-term growth and IPO readiness. Join us in shaping the future of SaaS security!

About Rhoda AI Rhoda AI is building the next generation of humanoid robotics, combining high-performance, software-defined hardware with advanced foundational and video world models. Our robots are designed as adaptable generalists, able to handle complex real-world settings and new challenges. The team works closely with leading researchers from Stanford, Berkeley, Harvard, and other institutions. With over $400M raised, Rhoda AI is investing heavily in research, hardware, and scaling up manufacturing to bring these robots to life. Role Overview The Cloud Infrastructure Engineer will design and manage the systems that power Rhoda AI's robotics and AI platform. This role covers infrastructure for training data collection, robot fleet maintenance, and model training and evaluation. High reliability and low latency are essential throughout. The systems built here form the backbone of product delivery. What You Will Do Design, build, and maintain cloud infrastructure for data pipelines, robot operations, and model training and evaluation. Keep critical infrastructure components, databases, data warehouses, object storage, reliable, available, and fast. Develop and manage backend services and APIs that deliver infrastructure capabilities to internal and external users. Troubleshoot and resolve performance bottlenecks in the data and compute stack to meet strict latency and throughput goals. Work with research teams to translate model training and evaluation needs into scalable infrastructure solutions. Partner with robotics teams to ensure field operations have dependable, low-latency backend support. Create observability tools, including metrics, logging, and alerting systems, to spot and address infrastructure issues early. Set and follow best practices for infrastructure security, cost efficiency, and scalability. Take part in on-call rotations and contribute to incident response and retrospective reviews. What We Look For 4+ years of experience in cloud infrastructure engineering or a closely related area. Skilled in designing and implementing scalable cloud architectures. Hands-on experience with databases, data warehouses, and object storage systems. Strong programming ability in Python, Java, or Go. Excellent problem-solving skills and attention to detail. Collaborative approach and ability to work well in a fast-moving team. Location Palo Alto

Senior Software Engineer, Cloud & Infrastructure | Software EngineeringPalo Alto, CA (on-site)At 1X, we are at the forefront of innovation, developing humanoid robots that collaborate with humans to address labor shortages and foster abundance.In this pivotal role, you will spearhead the design and implementation of sophisticated software that bridges the physical and digital realms of our global robotic operations. From deployment tools and fleet management solutions to customer interfaces and internal operational platforms, your goal is to develop systems that can scale from hundreds to tens of thousands of robots. You will take charge of architectural decisions, construct core components, and mentor engineers across the technology stack, ensuring reliability, simplicity, and performance throughout.

Role Overview Pylon is hiring a Security Engineer focused on foundational security practices at our Palo Alto office. This role centers on building and maintaining security protocols to protect company infrastructure. What You Will Do Design, implement, and maintain security measures across systems and networks Work with teams from different disciplines to spot vulnerabilities and address them Help ensure Pylon meets relevant industry security standards and compliance requirements Location This position is based in Palo Alto.

About the Role Pinterest is looking for an Engineering Manager II to guide the Infrastructure team. This group builds and maintains the systems that keep Pinterest running smoothly and reliably at scale. What You Will Do Lead a team of engineers focused on infrastructure projects Shape technical strategy and direction for core systems Work to ensure high availability and strong performance across services Location This role is based in San Francisco, CA or Palo Alto, CA.

About UsOdyssey is at the forefront of artificial intelligence innovation, dedicated to developing general-purpose world models. These models represent a cutting-edge form of multimodal intelligence that paves the way for transformative applications across consumer, enterprise, and intelligence sectors. Our groundbreaking work, including advancements showcased in Odyssey-2 Pro, positions us as leaders in the next major frontier of AI.Position OverviewWe seek a passionate Infrastructure Engineer who excels in creating the systems that enable pioneering research and product development. You possess a systems-oriented mindset, are driven by performance, and thrive on converting theoretical limitations into practical, efficient solutions. Your mission will be to design and maintain an infrastructure that supports Odyssey's world models, facilitating real-time imagination, action, and interaction.Key ResponsibilitiesDevelop and manage a low-latency model inference platform, ensuring optimal availability, scalability, and resource efficiency for Odyssey’s world models.Engineer and expand our core data processing infrastructure (e.g., Flyte, Ray with Kubernetes) to manage petabyte-scale datasets effectively.Design, construct, and maintain large-scale, GPU-based training clusters for deep learning, emphasizing usability, throughput, and reliability.Automate infrastructure provisioning and monitoring using Infrastructure as Code (IaC) principles.Enhance performance tuning, cost management, and reliability across the technology stack.Work collaboratively with researchers and product developers to comprehend their needs, streamline workflows, and elevate platform usability.

About xAIAt xAI, our mission is to develop artificial intelligence systems that comprehend the universe and assist humanity in its quest for knowledge. Our team is composed of dedicated professionals who are passionate about engineering excellence. We seek individuals who thrive on challenges and exhibit curiosity. Operating within a flat organizational structure, we encourage all employees to take initiative and directly contribute to our mission. We value a strong work ethic and prioritization skills, along with effective communication capabilities to share insights with colleagues. About the Role We are looking for a talented Azure Security Engineer to design, implement, and maintain robust security measures across our Azure Government Cloud environment, including hybrid and multi-cloud configurations. In this hands-on role, you will enhance and uphold our cloud security posture, safeguarding critical workloads while collaborating with engineering, DevOps, and compliance teams to integrate security throughout the development lifecycle. You will utilize Microsoft’s native security tools to identify threats, respond to incidents, and ensure adherence to industry standards and regulations, including compliance with government requirements such as FedRAMP and CMMC. Key Responsibilities:Design and manage security architecture for Azure Government and Commercial deployments, considering DoD IL5/IL6 and FedRAMP High controls.Optimize Microsoft Defender for Cloud, Microsoft Sentinel, Microsoft Defender for Endpoint, and related services for effective threat detection, vulnerability management, and automated response. Establish and enforce identity and access management using Microsoft Entra ID, Privileged Identity Management (PIM), Conditional Access policies, RBAC, and just-in-time access. Secure network architectures using Azure Firewall, Network Security Groups, and other Azure security tools.