Reliability/DFX Engineer

Become a vital part of the engineering teams that responsibly bring OpenAI’s transformative technologies to the world!At OpenAI, our Applied Engineering team collaborates across research, engineering, product management, and design to deliver AI solutions to both consumers and businesses. We are committed to learning from our deployments, maximizing the benefits of AI, and ensuring that this powerful technology is utilized both safely and ethically. Our priority is safety over unchecked growth.About the RoleAs OpenAI continues to expand, we are seeking seasoned engineers who excel in problem-solving to enhance the scalability of our systems. Our achievements hinge on our ability to rapidly iterate on product development while ensuring optimal performance and reliability. You will thrive in a collaborative, fast-paced environment, playing a key role in delivering our technology to millions globally, with a focus on safety and reliability. As a reliability engineer, you will lead efforts to maintain and improve the stability, scalability, and performance of our dynamic infrastructure. You will collaborate closely with cross-functional teams, including software engineers, product managers, and data scientists, to construct and sustain robust systems capable of accommodating our growing user base and workload.Your Responsibilities Include:Designing and implementing solutions to scale our infrastructure to meet increasing demands effectively.Developing and maintaining load, chaos, and synthetic testing software that enhances the reliability of systems designed by development teams.Creating and managing automation tools to streamline repetitive tasks and bolster system reliability.Overseeing the lifecycle management platform for CPU/storage, GPU, and network resources to foster efficiency and support dynamic optimization.Implementing fault-tolerant and resilient design patterns to minimize service interruptions.Establishing and maintaining service level objectives (SLOs) and service level indicators (SLIs) to ensure system reliability.Collaborating with researchers, engineers, product managers, and designers to introduce new features and research advancements to the world.Participating in an on-call rotation to address critical incidents and ensure 24/7 system availability.Your Impact: Your contributions will be essential in guaranteeing the reliability and performance of our platforms as we continue to scale our operations.

About GridwareGridware is an innovative technology firm headquartered in San Francisco, committed to safeguarding and enhancing the reliability of the electrical grid. We have pioneered a revolutionary approach to grid management known as Active Grid Response (AGR), which meticulously monitors the electrical, physical, and environmental factors influencing grid safety and reliability. Our state-of-the-art AGR platform leverages high-precision sensors to identify potential issues at an early stage, facilitating proactive maintenance and fault resolution. This holistic strategy is designed to bolster safety, minimize outages, and ensure optimal grid performance. We are proud to be supported by prominent climate-tech and Silicon Valley investors. To learn more, visit www.Gridware.io.About the RoleWe are seeking a skilled Senior Hardware Reliability Engineer to lead reliability testing, analysis, and lifetime modeling of various outdoor electronic assemblies. This pivotal role will concentrate on the electronic components of our products, collaborating closely with our mechanical-focused Reliability Engineer and engaging with the broader hardware and cross-functional teams.

About Multiply LabsMultiply Labs is an innovative startup located in San Francisco, California, backed by renowned investors in technology and life sciences such as Casdin Capital, Lux Capital, and Y Combinator. Our goal is to develop the world's leading robotic systems and utilize them to make groundbreaking life-saving therapies accessible to everyone.We are transforming the manufacturing process of cell therapies through the creation of advanced robotic systems that automate and scale the production of these crucial treatments. Our cutting-edge robots enable biopharma companies to produce cell therapies efficiently without overhauling their existing processes, thus minimizing regulatory hurdles and risks. Unlike traditional methods that are labor-intensive and costly (often exceeding $1M per patient), our robotic solutions aim to make these vital treatments more affordable and reachable for those who need them.To discover more and view our robots in action, please visit www.multiplylabs.com and follow us on LinkedIn.Position OverviewWe are looking for a dedicated Hardware Reliability Engineer to become an essential part of Multiply Labs’ Reliability Engineering team. As a founding member, you will collaborate closely with the Hardware Product and Systems Integration teams to enhance our designs throughout the entire development lifecycle, from initial prototypes to fully deployed GMP production systems. Your contributions will directly support the delivery of life-saving therapies by ensuring our robots operate seamlessly within the high-stakes biotech environment.

Join Checkr as a Software Engineer focusing on Reliability, where your contributions will enhance our platform's robustness and performance. You will be part of a dynamic team dedicated to building and scaling systems that support our growth and ensure outstanding service delivery to our clients.

Join Cloudflare as a Database Reliability Engineer, where you will play a crucial role in ensuring the reliability and performance of our database systems. You will work collaboratively with our engineering teams to develop, implement, and maintain robust database solutions that support our mission of making the internet safer and faster.Your responsibilities will include monitoring database performance, troubleshooting issues, and optimizing queries to enhance system efficiency. If you are passionate about databases and eager to make an impact in a dynamic environment, we encourage you to apply!

Astranis is at the forefront of satellite technology, crafting advanced satellites designed for high orbits to broaden humanity's exploration of the solar system. Our satellites deliver dedicated, secure networks to a diverse range of esteemed clients worldwide, including large enterprises, government entities, and the US military. With five satellites currently operational and several more set to launch, we are addressing a robust backlog of over $1 billion in commercial contracts.We take pride in being the leading choice for satellite communications among clients with demanding standards for uptime, data security, network visibility, and customization. Having secured over $750 million from top-tier investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 engineers and entrepreneurs operates from our expansive 153,000 sq. ft. headquarters in Northern California, USA.Senior Reliability Test EngineerAs a Senior Reliability Test Engineer, you will play a pivotal role in collaborating across all engineering disciplines to ensure our hardware achieves exceptional quality and reliability standards. With Astranis ramping up satellite production, your expertise will be essential in establishing a comprehensive reliability test program that supports the development of new product designs, monitors manufacturing processes, and identifies long-term reliability issues. The ideal candidate will possess extensive engineering experience with high-reliability products, demonstrate autonomy, and have the capability to design a reliability test program from the ground up.

Astranis is revolutionizing satellite technology by creating advanced spacecraft designed for high orbits, thereby extending humanity's presence in the solar system. Our satellites deliver dedicated and secure networks to an elite clientele, including large corporations, government entities, and the U.S. military. With five satellites successfully launched and a robust pipeline of over $1 billion in commercial contracts, Astranis is set for growth as we prepare for numerous upcoming launches.We are the go-to satellite communications partner for clients demanding exceptional uptime, data security, network visibility, and tailored solutions. Backed by over $750 million from industry-leading investors such as Andreessen Horowitz, Blackrock, and Fidelity, our team of 450 engineers and entrepreneurs thrives in our 153,000 sq. ft. headquarters in Northern California.Senior Electrical Reliability EngineerAs a Senior Reliability Engineer at Astranis, you will be pivotal in ensuring that our spacecraft electronics and systems fulfill our reliability and availability requirements. Collaborating with a multidisciplinary engineering team, you will push the boundaries of geo-synchronous spacecraft design and achieve previously unattainable performance in space. Your expertise will ensure that Design for Reliability remains central to our engineering efforts.

Drata helps organizations demonstrate their commitment to security and integrity. The platform supports companies as they build and maintain trust with users, customers, partners, and prospects. Values Built on Trust: Consistency shapes decisions and actions. Integrity: Choosing to do what is right, every time. Customer-Obsessed: Prioritizing customer needs above all else. Competitive Fire: Striving for higher standards and greater achievements. Diversity: Welcoming different perspectives to encourage creative solutions. Automation First: Pursuing efficiency by saving time and resources wherever possible. How the Team Works Drata blends high standards with a supportive environment focused on growth. Team members are encouraged to own their work, improve continuously, and deliver meaningful results. The company values quick, informed decisions that drive immediate impact, while always keeping the mission and customer needs at the center. The San Francisco-based team uses a hybrid work model. Colleagues collaborate in the office Tuesday through Thursday, focusing on alignment and innovation. Mondays and Fridays offer flexibility for deep work or personal needs. Growth and Culture Drata has expanded to over 600 professionals worldwide, recognized for a culture that values trust, speed, and continuous learning. The environment supports both personal and professional development. See the Speed: CEO Adam Markowitz discusses Drata’s rapid journey to $100M ARR in four years. Hear the Voice of the Team: Employee stories highlight collaboration and growth at Drata.

We are seeking a talented and motivated Reliability Engineer to join our innovative team at Redwood Materials. In this role, you will be responsible for ensuring the reliability and performance of our cutting-edge energy storage systems. You will collaborate with cross-functional teams to develop and implement reliability engineering strategies that enhance product performance and longevity.

Join unify as a Staff Backend Engineer specializing in Reliability. In this pivotal role, you will be responsible for designing, developing, and maintaining backend systems that ensure the reliability and performance of our services. Collaborate with cross-functional teams to implement robust solutions and drive continuous improvement initiatives.

Join Our TeamAt Cognition, we are at the forefront of applied AI innovation, developing cutting-edge software agents that redefine the engineering landscape. Our flagship products, Devin, the pioneering AI software engineer, and Windsurf, an AI-native IDE, embody our commitment to creating AI that collaborates with engineers as a true partner.Our team is composed of elite talent including competitive programming champions, visionary founders, and researchers from top AI institutions such as Scale AI, Palantir, Cursor, Google DeepMind, and more.Your MissionAs a Site Reliability Engineer, you will play a crucial role in ensuring the reliability of our user-focused products, which are utilized by hundreds of thousands of developers daily. Your mission is to preemptively address potential issues and swiftly resolve any incidents that may arise, maintaining a seamless experience for our users.You will be responsible for overseeing production reliability and enhancing our platform engineering practices, encompassing SLOs, incident response, and on-call duties, alongside CI/CD pipelines, deployment infrastructure, and developer tools. At Cognition, we believe in integrating reliability into our systems rather than treating it as an afterthought, and we strive to cultivate a culture that reflects this philosophy.Your AchievementsProduction Reliability: Establish and manage SLOs, SLIs, and error budgets for our products. Develop robust monitoring, alerting, and observability systems to maintain a transparent view of service health.Incident Management: Spearhead incident response with precision and promptness. Conduct blameless postmortems to derive actionable insights from outages, and create effective runbooks and tools to enhance on-call sustainability.Platform Engineering: Oversee deployment pipelines and internal developer tools, ensuring rapid, reliable shipping of code while minimizing unnecessary toil for engineers.Infrastructure as Code: Manage cloud infrastructure via code, creating reproducible, auditable environments that can scale with product demands and mitigate configuration drift.Capacity Planning: Analyze growth trends, anticipate resource requirements, and ensure our infrastructure is always ahead of user demand, optimizing system performance proactively.Security and Reliability: Integrate security protocols with reliability practices to create a robust framework that safeguards our infrastructure.

Join our dynamic team at fal as a Senior/Staff Site Reliability Engineer. In this key role, you will leverage your expertise to enhance our systems' reliability and performance. If you are passionate about building scalable systems and enjoy working in a collaborative environment, we want to hear from you!

ABOUT BASETENBaseten is at the forefront of powering mission-critical AI inference for some of the most innovative companies globally, including Cursor, Notion, OpenEvidence, Abridge, Clay, Gamma, and Writer. We integrate cutting-edge applied AI research with a flexible infrastructure and intuitive developer tools to empower companies at the leading edge of AI to deploy sophisticated models effectively. With our recent $300M Series E funding round—supported by prominent investors such as BOND, IVP, Spark Capital, Greylock, and Conviction—we are rapidly expanding. Join our dynamic team and contribute to creating an essential platform for engineers to launch AI products with ease.THE ROLEAs a Site Reliability Engineer, you will design and implement resilient systems and processes that ensure our infrastructure is scalable, reliable, and efficient. Your responsibilities will encompass everything from automating deployments and monitoring systems to enhancing performance and managing incidents effectively.Collaboration is key; you will work closely with our users to understand their challenges in operationalizing machine learning, facilitating their onboarding onto our platform, and leveraging these insights to inform improvements to Baseten.EXAMPLE INITIATIVESAs part of our Infrastructure team, you will engage in exciting projects such as:Innovative multi-cloud capacity managementOptimizing inference on B200 GPUsImplementing multi-node inferenceUtilizing fractional H100 GPUs for efficient model servingRESPONSIBILITIESDesign and maintain scalable infrastructures to support the deployment and operational needs of machine learning models.Establish standards and best practices to enhance reliability and performance across the infrastructure.Proactively identify and resolve reliability issues using monitoring and alerting systems.Collaborate with cross-functional teams to apply best practices in infrastructure management and incident response.Create automation scripts to streamline processes and reduce manual intervention.

About HiveHive stands at the forefront of cloud-based AI innovation, providing cutting-edge solutions that enable organizations to understand, search, and generate content. Our platform is relied upon by some of the world's most prestigious and forward-thinking companies. We empower developers with an extensive suite of state-of-the-art, pre-trained AI models that handle billions of API requests each month. In addition to our robust model offerings, we deliver comprehensive software applications backed by proprietary AI models and datasets, unlocking transformative applications in various sectors such as content moderation, brand protection, sponsorship measurement, and context-based advertising.With over $120 million in funding from esteemed investors like General Catalyst, 8VC, Glynn Capital, Bain & Company, and Visa Ventures, Hive has cultivated a vibrant global team of over 250 employees across our San Francisco, Seattle, and Delhi offices. If you’re passionate about shaping the future of AI, we invite you to join our dynamic team!DevOps and Systems TeamIn response to our distinctive machine learning demands, we have developed our own data centers focusing on distributed high-performance computing with GPU integration. While we harness the power of these data centers, our infrastructure remains hybrid, leveraging public cloud solutions when advantageous. As we scale our machine learning models for commercial use, we are expanding our DevOps and Site Reliability team to ensure the reliability of our enterprise SaaS offerings. Our ideal candidate thrives in dynamic environments, embraces automation, and believes that every task can be automated and every server can scale. You take pride in enhancing performance across all layers of our stack and are committed to never performing the same task manually twice.

Who We AreAt Hyperbolic Labs, we are committed to democratizing AI by removing barriers to computing power with our Open-Access AI Cloud. By aggregating global computing resources, we provide an innovative GPU marketplace and AI inference service that ensures both affordability and accessibility. As trailblazers at the convergence of AI and open-source technology, we envision a future where AI innovation is only limited by creativity, not by resource availability. We invite forward-thinking individuals who share our dedication to making AI universally accessible, secure, and affordable. Join us in crafting a platform that empowers innovators worldwide to realize their visionary AI projects.In anticipation of our growth following our Series A funding, our team — guided by co-founders with advanced degrees in AI, Mathematics, and Computer Science — is set to transform the computing landscape.About the RoleWe are in search of a skilled Site Reliability Engineer to guarantee that Hyperbolic's GPU marketplace and AI infrastructure function with outstanding reliability, performance, and security. As an aggregator of computational resources from numerous global providers, our service level objectives (SLOs), trust, and economic efficiency are critical to our product. Your key responsibilities will include defining and maintaining service level objectives, developing resilient incident response protocols, managing capacity across our extensive GPU network, and implementing secure rollout and rollback mechanisms to ensure uninterrupted platform operation around the clock.In this influential role, you'll set the reliability benchmarks that foster customer trust in our platform, design comprehensive monitoring and alerting systems for enhanced infrastructure visibility, automate capacity management and resource allocation processes, lead incident response and post-mortem evaluations, and collaborate closely with engineering teams to bolster system resilience. Security and infrastructure hardening will be paramount, necessitating strong isolation protocols between tenants and suppliers, the implementation of effective key management systems, and the establishment of compliance frameworks. This high-impact position will directly affect our ability to deliver on our commitment to providing affordable, accessible AI compute at scale.

About UsAt Sierra, we are pioneering a transformative platform that empowers businesses to forge authentic customer experiences through AI technology. Headquartered in the vibrant city of San Francisco, we also boast a dynamic presence in Atlanta, New York, London, France, Singapore, and Japan.Our operations are anchored in core values that shape our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These principles guide our actions and are integral to our mission.Our visionary founders, Bret Taylor and Clay Bavor, bring unparalleled expertise. Bret, currently the Board Chair of OpenAI, previously co-led Salesforce and served as CTO at Facebook, while Clay led numerous initiatives at Google, including AR/VR projects and Google Workspace.Your RoleIn your capacity as a Software Engineer on the Site Reliability team, you will play a crucial role in establishing and enhancing the reliability, observability, and scalability of Sierra’s AI-centric infrastructure. Collaborating closely with our engineering and product teams, your goal is to ensure our systems remain highly available, efficient, and primed for growth.Lead the development of Sierra’s observability stack—including monitoring, alerting, logging, and tracing—to provide engineers with critical insights into system health and performance.Collaborate with product and platform engineers to architect systems that prioritize reliability and scalability from the outset, not as an afterthought.Design and implement robust, scalable, and secure cloud infrastructure on AWS, employing Terraform and cutting-edge DevOps tools.Enhance the reliability and scalability of our LLM deployments, ensuring they operate efficiently and cost-effectively.Drive improvements in deployment pipelines, CI/CD tooling, and incident management processes to minimize downtime and accelerate response times.Define and cultivate SRE practices within Sierra, shaping culture, tooling, and best practices across the engineering organization.QualificationsBachelor's degree in Computer Science or a related field, or equivalent experience.Proven experience in Site Reliability Engineering or a similar role, with a strong understanding of cloud infrastructure (AWS).Proficiency in Terraform and modern DevOps practices.Experience with observability tools and techniques—monitoring, alerting, logging, and tracing.Strong problem-solving skills with a focus on scalability and performance optimization.Excellent collaboration and communication skills, with the ability to work effectively in a team environment.

Join Cloudflare as a Security Systems Reliability Engineering Manager and lead a team dedicated to enhancing the reliability of our security systems. In this hybrid role, you will drive initiatives that ensure our security infrastructure is robust and resilient, addressing critical challenges within our operations.As a leader, you will collaborate with cross-functional teams to enhance system performance and reliability, ensuring that our security systems meet the high standards expected by our users. Your expertise will be pivotal in maintaining the integrity and availability of our services.

At Fastly, we empower individuals to connect more effectively with the things they cherish. Our cutting-edge edge cloud platform enables customers to swiftly, securely, and reliably craft exceptional digital experiences by processing, serving, and safeguarding their applications as close to their end-users as possible — right at the edge of the Internet. Tailored for modern internet demands, our platform is programmable and supports agile software development. We proudly serve many of the world's leading companies, including GitHub, Yelp, Paramount, and JetBlue.Join us in our mission to build a more trustworthy Internet.Posting Open Date: Feb. 25, 2026Anticipated Posting Close Date*: March 25, 2026*Please note that this job posting may close early depending on the volume of applications.Role Overview:The Data Reliability team is seeking an experienced Senior Software Engineer to contribute to the development and support of next-generation data storage solutions at Fastly. The ideal candidate will possess expertise in backend and data services within cloud environments, proficiency with configuration and orchestration tools such as Terraform and Kubernetes, and the ability to create internal administration tools using Go and related technologies. Our team plays a vital role in ensuring the infrastructure, orchestration, and reliability of Fastly's most data-intensive applications, utilizing technologies like Terraform, Elasticsearch, ClickHouse, Prometheus, MySQL, and Redis across both cloud and hardware platforms. Your contributions will directly enhance our customers' success by providing product teams with a robust platform for efficient and consistent delivery of high-quality, high-throughput, globally distributed data systems and products. We embrace a distributed work model and value both collaborative and asynchronous communication styles.Key Responsibilities:Deploy, support, and maintain various critical data storage systems, scaling from gigabytes to petabytes.Develop statistics and dashboards to track service-level objectives for these systems.Create and manage tools for configuration, backup, and authenticated access to data systems employing peer review, CI/CD, and both daemon- and container-based deployment strategies.Write high-performance, maintainable, and concise code, actively participating in code reviews to enhance the codebase.

About UnifyUnify is pioneering the first AI-powered system of action for revenue teams. Our innovative technology is transforming outbound strategies into a powerful growth engine by ensuring that go-to-market execution is observable, repeatable, and scalable. Founded in 2023 by visionaries from Ramp and Scale AI, our team is comprised of experienced professionals from leading companies like Airbnb, Meta, Waymo, and Perplexity.In 2024, Unify achieved an impressive revenue increase of 8x and now serves a diverse clientele, including Perplexity, Cursor, SoFi, and Justworks. We are a dynamic and high-energy team that has successfully raised $58M from esteemed investors such as Thrive, Emergence, and OpenAI. Join us as we shape the future of GTM!About the RoleAs a Staff Backend Engineer at Unify, you will play a crucial role in enhancing the reliability and scalability of our platform, which processes terabytes of data monthly while maintaining stringent uptime requirements for our clients. You will lead a dedicated team of Site Reliability Engineers (SREs) and collaborate closely with engineering leadership to establish systems and practices that ensure Unify remains fast and dependable as we scale.