Research Infrastructure - Member of Technical Staff SimileResearch Infrastructure - Member of Technical StaffSan Francisco, CaliforniaKeep a multi-node fleet healthy and saturated: node bring-up, topology-aware NCCL and RDMA configuration, scheduling and queue depth, storage lifecycle and checkpoint capacity, autoscaling of serving capacity alongside training jobs, and the alerting that tells us when GPUs are sitting idle. The world's leading companies use Simile to make business-critical decisions — from consumer leaders like CVS Health and Wealthfront to professional services organizations like Deloitte and Gallup — strategizing product launches, entering new markets, and forecasting earnings calls.
Senior Platform Engineer - Core Infrastructure LambdaSenior Platform Engineer - Core InfrastructureSan Francisco, CaliforniaOur investors notably include TWG Global, US Innovative Technology Fund (USIT), Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, Gradient Ventures, Mercato Partners, SVB, 1517, and Crescent Cove. *Note: This position requires presence in our San Francisco,San Jose, or Bellevue office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.
NewSr. Staff Engineer Software, Infrastructure Reliability (Chronosphere) Palo Alto NetworksSr. Staff Engineer Software, Infrastructure Reliability (Chronosphere)San Francisco, CaliforniaRemoteAnalytical Debugging & Quality: The ability to debug your own code efficiently using logs and tests, while proactively identifying edge cases (like nulls or limits) during the design phase. For candidates who receive an offer at the posted level, the starting base salary (for non-sales roles) or base salary + commission target (for sales/com-missioned roles) is expected to be the annual range listed below.
Senior Software Engineer (Infrastructure ) AmplitudeSenior Software Engineer (Infrastructure )San Francisco, CAWashington salary range: $165,000 - $247,000 total target cash (inclusive of bonus or commission)Based on legislation in Washington state, the following details are for individuals who will work for Amplitude in Washington only: unlimited PTO, 10 to 13 holidays annually (will vary), medical dental and vision PPO and CDHP plans. New York City salary range: $183,000 - $276,000 total target cash (inclusive of bonus or commission)Based on legislation in California, the following details are for individuals who will work for Amplitude in San Francisco Bay Area of California.
Staff Software Engineer (Infrastructure ) AmplitudeStaff Software Engineer (Infrastructure )San Francisco, CAWashington salary range: $198,000 - $299,000 total target cash (inclusive of bonus or commission)Based on legislation in Washington state, the following details are for individuals who will work for Amplitude in Washington only: unlimited PTO, 10 to 13 holidays annually (will vary), medical dental and vision PPO and CDHP plans. New York City salary range: $220,000 - $331,000 total target cash (inclusive of bonus or commission)Based on legislation in California, the following details are for individuals who will work for Amplitude in San Francisco Bay Area of California.
Software Engineer, Payments Infrastructure SierraSoftware Engineer, Payments InfrastructureSan Francisco, CaliforniaDesign the secure-capture protocol every channel sits behind, so the payment feels like one continuous conversation to the person on the other end, while telephony providers, contact-center platforms, embedded chat, and Sierra's own voice stack all present a single event lifecycle to agent code, no matter how different each customer's stack is. Make payments something other engineers can use without becoming compliance experts: drive the platform toward processor-agnostic charging, self-serve onboarding, and single-tenant deployments, so a team can add payments to an agent without a payments infrastructure engineer in the loop.
Senior Software Engineer, Infrastructure Hayden AISenior Software Engineer, InfrastructureSan Francisco, CaliforniaThe Infrastructure Engineering team is crucial to the overall success of Hayden products: We own all the underlying fabric that connects thousands of devices deployed in the field with large-scale, multi-region cloud services and applications that interact with the data we collect from those devices. Architect the Service Backbone: Lead the design and evolution of the core services architecture, providing a robust, high-availability backbone utilized by all cloud services and engineering teams.
Member of Technical Staff: Pre-Training Infrastructure Recruiting From ScratchMember of Technical Staff: Pre-Training InfrastructureSan Francisco, CaliforniaThe company is developing a vertically integrated robotics platform that combines advanced machine learning, robotics infrastructure, and large-scale model training to solve some of the most challenging problems in physical automation. This team sits at the intersection of distributed systems, machine learning infrastructure, and hardware optimization, enabling researchers to train and iterate on increasingly sophisticated multimodal AI systems.
Staff Software Engineer, ML Infrastructure VoxelStaff Software Engineer, ML InfrastructureSan Francisco, CaliforniaOwn the train-to-deploy handoff: export trained models to optimized inference formats (TensorRT, ONNX), quantify accuracy and latency impact, and partner with Platform on production deployment. Architect and build the training infrastructure that lets the applied ML team run multiple experiments concurrently and iterate quickly on new architectures (PyTorch, AWS).
Staff Software Engineer, Data Infrastructure PeregrineStaff Software Engineer, Data InfrastructureSan Francisco, CA$200,000–$275,000 / yearBacked by leading Silicon Valley investors, Peregrine helps public safety organizations, state and local and governments, federal agencies, and private-sector institutions address society's challenges with unprecedented speed and accuracy. Our AI-enabled platform turns siloed and disconnected data into operational intelligence - instantly surfacing mission-critical information to empower better, faster decisions that improve outcomes at every touchpoint.
Member of Technical Staff (Software Engineer, Cloud Infrastructure) PerplexityMember of Technical Staff (Software Engineer, Cloud Infrastructure)San Francisco, CaliforniaDesign and operate Perplexity’s cloud networking fabric, including VPC architectures, private connectivity, and peering with hyperscalers and neocloud providers to support low-latency, high-throughput AI workloads. Architect and scale compute platforms (Kubernetes/EKS, autoscaling groups, and mixed CPU/GPU fleets) to efficiently serve online request traffic and background workloads across regions.
Member of Technical Staff — Cluster Infrastructure & Supercomputing RadixArkMember of Technical Staff — Cluster Infrastructure & SupercomputingPalo Alto, CaliforniaOur team has optimized kernels serving billions of tokens daily, designed distributed training systems coordinating 10,000+ GPUs, and contributed to infrastructure that powers leading AI companies and research labs. You will design and operate highly reliable, high-performance GPU/TPU clusters, build next-generation scheduling and resource management systems, and push the limits of large-scale distributed infrastructure for AI workloads.
Member of Technical Staff — Reliability-CI Infrastructure RadixArkMember of Technical Staff — Reliability-CI InfrastructurePalo Alto, California$200,000–$400,000 / yearRadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (30K+ GitHub stars, the fastest open LLM serving engine), and developed Miles (our large-scale RL framework). Our team has optimized kernels serving billions of tokens daily, designed distributed training systems coordinating 10,000+ GPUs, and contributed to infrastructure that powers leading AI companies and research labs.
Senior Software Engineer, Infrastructure Hayden AI Technologies, Inc.Senior Software Engineer, InfrastructureSan Francisco, CAThe Infrastructure Engineering team is crucial to the overall success of Hayden products: We own all the underlying fabric that connects thousands of devices deployed in the field with large-scale, multi-region cloud services and applications that interact with the data we collect from those devices. Responsibilities: Architect the Service Backbone: Lead the design and evolution of the core services architecture, providing a robust, high-availability backbone utilized by all cloud services and engineering teams.
Cloud Infrastructure Engineer zaimlerCloud Infrastructure EngineerSan Mateozaimler was founded by Biswajit Das (ex-VP Engineering, Truera), a Data Infra veteran and former Chief Architect at Visa, and Sofus Macskassy (ex-Director of Engineering, LinkedIn), who built one of the largest knowledge graphs in production in the industry at LinkedIn. zaimler is the context infrastructure for the agentic era: a platform that automatically discovers domain knowledge, maps relationships, and gives AI agents the semantic understanding to operate with precision at scale.
ML Infrastructure Engineer zaimlerML Infrastructure EngineerSan Mateozaimler was founded by Biswajit Das (ex-VP Engineering, Truera), a Data Infra veteran and former Chief Architect at Visa, and Sofus Macskassy (ex-Director of Engineering, LinkedIn), who built one of the largest knowledge graphs in production in the industry at LinkedIn. zaimler is the context infrastructure for the agentic era: a platform that automatically discovers domain knowledge, maps relationships, and gives AI agents the semantic understanding to operate with precision at scale.
NewSenior Cloud Engineer, Agentic Infrastructure HandshakeSenior Cloud Engineer, Agentic InfrastructureSan Francisco, CaliforniaYou'll work closely with engineering, platform, and security teams to define patterns that scale — and make it genuinely easy for developers to do the right thing. Deep hands-on experience with GCP (strongly preferred), AWS, or Azure — you've run production workloads at scale and know where the bodies are buried.
Manager, Datacenter Compute Infrastructure (Starlink) SpaceXManager, Datacenter Compute Infrastructure (Starlink)Palo Alto, CA$155,000–$215,000 / yearTo conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. This role oversees GPU/accelerators, CPUs, storage, ODM/CM relationships, as well as server and rack components to support SpaceXAI’s large-scale AI training clusters and compute facilities.
Senior Engineering Manager, Infrastructure GlossGeniusSenior Engineering Manager, InfrastructureSan Francisco, CA$230,000–$280,000 / yearOwn the technical roadmap for infrastructure and the data platform, defining how we scale from today's footprint to supporting an order of magnitude more traffic while holding a 99.95% uptime target and keeping cloud spend under control across multiple AWS regions. Continue to shape agentic production operations as the default, building the AI enablement layer that lets engineers delegate routine operational work to agents and reserve their own judgment for novel tasks.
Engineering Manager, AI Models Infrastructure IntercomEngineering Manager, AI Models InfrastructureDublin, CAFounded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support. Fin can also be combined with our Helpdesk to become a complete solution called the Fin Customer Service Suite, which provides AI enhanced support for the more complex or high touch queries that require a human agent.