NewHardware Test Engineer I, Testbeds & Egse Muon SpaceHardware Test Engineer I, Testbeds & EgseSan Jose, CA$127,000–$148,000 / yearMuon seeks an early-career Hardware Test Engineer to join our Testbeds & EGSE team - the group that builds the Hardware-In-The-Loop (HITL) testbeds behind every Muon mission and the electrical ground support equipment (EGSE) used to interface with our satellites during assembly, integration, and test. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency.
Training Performance Engineer OpenAITraining Performance EngineerSan Francisco, CAFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. Our work focuses on three pillars: high-performance, asynchronous, zero-copy tensor and optimizer-state-aware data movement; performant, high-uptime, fault-tolerant training frameworks (training loop, state management, resilient checkpointing, deterministic orchestration, and observability); and distributed process management for long-lived, job-specific and user-provided processes.
NewSoftware Engineer, Data Infrastructure (Staff) LightfieldSoftware Engineer, Data Infrastructure (Staff)San Francisco, CaliforniaWe got remarkably far on a deliberately simple stack: Postgres as the system of record, a sharded transactional outbox for change events, Redis-buffered sync into Typesense for search, BullMQ for processing, and Postgres-backed customer-facing analytics with per-organization row-level security. Customers define their own objects, attributes, and relationships at runtime, so the core data model is a schema-flexible, graph-shaped store: entity-attribute-value with typed edges, versioned attribute values, and relationship history.
GPU Cluster Engineer, Systems & Platform SciforiumGPU Cluster Engineer, Systems & PlatformSan Francisco, CaliforniaDriver & Runtime Lifecycle: Build, deploy, and debug the full accelerator stack — NVIDIA (CUDA toolkit, cuDNN, NCCL, Fabric Manager) and AMD (ROCm, RCCL) — including kernel modules (DKMS), GPUDirect RDMA/Storage, and the RDMA software stack (MOFED/DOCA). Golden Images & Automated Bring-Up: Own the node software definition — versioned OS images, kernel tuning (NUMA, hugepages, IRQ affinity, cgroups), GPU/NIC driver stacks — and the automated pipeline that takes a node from base OS to production-ready.
Member of Technical Staff — Training Infrastructure Causal LabsMember of Technical Staff — Training InfrastructureSan Francisco, CaliforniaOur founding team has built and deployed AI against the physical world in robotics, drug discovery, and particle physics at institutions like DeepMind, Waymo, Cruise, Insitro, Nabla Bio, and CERN. Research and test parallelization strategies and numerical precision trade-offs across model scales, including for architectures that don't map cleanly onto existing LLM training stacks.
Fullstack Engineer - Frontend Focus InferenceFullstack Engineer - Frontend FocusSan Francisco, CaliforniaWe combine idle GPU capacity from around the world into a single cohesive plane of compute capable of serving models like DeepSeek and Llama 4. At any moment, 5,000+ GPUs and hundreds of terabytes of VRAM are connected to our network. Collaborate across disciplines – work shoulder-to-shoulder with distributed-systems engineers, product designers, and founders to turn complex infrastructure into delightful product.
Senior Embedded Software Engineer AbbottSenior Embedded Software EngineerAlameda, CaliforniaThis position works out of our Alameda, CA location in the Abbott Diabetes Care Division, where we are focused on helping people manage their health with life-changing products that provide accurate biometric data to drive better-informed decisions. Our portfolio of life-changing technologies spans the spectrum of healthcare, with leading businesses and products in diagnostics, medical devices, nutritionals and branded generic medicines.
ML Infra - Data Infrastructure The Bot CompanyML Infra - Data InfrastructureSan Francisco, CaliforniaStrong experience building and maintaining production systems that process PBs of data on thousands of machines. Throughout the process, we expect candidates to demonstrate: Exceptional mental acuity: you think quickly, learn instantly, and reason across unfamiliar domains.
NewSenior GPU Systems & Fabric Engineer BitdeerSenior GPU Systems & Fabric EngineerSan Jose, CAThis role requires deep expertise in Linux kernel internals, GPU architectures, and high-speed interconnects, as you will be tasked with transforming raw, bare-metal compute resources into scalable, resilient, and multi-tenant cloud primitives. Build and manage automated hardware remediation pipelines using DCGM telemetry to proactively identify, isolate, and reset degraded GPU/NIC components before they impact production jobs.
Senior Machine Learning Engineer, GenAI Data RobloxSenior Machine Learning Engineer, GenAI DataSan Mateo, CA$243,290–$295,250 / yearEvery day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. We are seeking accomplished software engineers with a passion for data, experience building large distributed systems, and a commitment to writing high-quality, well-tested code to solve complex data challenges at scale.
Hardware / Software Codesign Engineer - 3P OpenAIHardware / Software Codesign Engineer - 3PSan Francisco, CAFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. If you are excited about efficiently distributing a large language model across devices, dealing with and optimizing system-wide/rack-wide networking bottlenecks and eventually tailoring the compute pipe and memory hierarchy of the hardware platform, simulating workloads at different abstractions and working closely with our partners, this is the perfect opportunity!
Hardware / Software CoDesign Engineer - 3P OpenAIHardware / Software CoDesign Engineer - 3PSan Francisco, CaliforniaFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. If you are excited about efficiently distributing a large language model across devices, dealing with and optimizing system-wide/rack-wide networking bottlenecks and eventually tailoring the compute pipe and memory hierarchy of the hardware platform, simulating workloads at different abstractions and working closely with our partners, this is the perfect opportunity!
Software Systems Engineer Artech LLCSoftware Systems EngineerSan Ramon, CA$70–$75 / hour5) Resolve or assist in resolving complex service problems for all Telecommunication and Vendor partner CTI solutions through multiparty conference calls with various work centers, local access providers, internal/external customers and equipment vendors. Experienced with Genesys CTI, Framework, Stat and SIP server technologies, Routing strategies, T-Lib SDK, E-Services which include Interaction Server, UCS, Chat server and Client.
Staff Engineer - Cmaas (Platform And Tools - Vms) Geico InsuranceStaff Engineer - Cmaas (Platform And Tools - Vms)Palo Alto, CA$110,000–$230,000 / yearThe Platform and Tools - VMs team is dedicated to realizing a secure, reliable, scalable, and highly efficient next-generation virtual machine management and orchestration platform running on Kubernetes. This role requires deep technical expertise in configuration management systems, infrastructure as code, and the ability to drive technical strategy across engineering teams.
Init Intelligence — Senior/Staff Founding Full-Stack Engineer, Agent Systems DavidJoseph&CoInit Intelligence — Senior/Staff Founding Full-Stack Engineer, Agent SystemsSan Francisco, CaliforniaInit is building AI coworkers for IT teams: a security-focused product where an agent registers as a governed identity in a customer's directory, requests scoped access per task, escalates for human approval, and drives systems it was never given an API for. True founding scope: Early engineer owning the product and system end-to-end — workflow engine, identity/authz, policy engine, credential handling, and agent sandboxes.
Sr. Energy Storage Engineer SB EnergySr. Energy Storage EngineerRedwood City, CA$100,000–$140,000 / yearIn 2026, SoftBank Group and OpenAI announced a $1 billion investment to support SB Energy as their leading development and execution partner for data center campuses, while Ares Infrastructure continues its long-standing support of the company's growth. Energy Storage Engineer will provide subject matter expertise on Energy Storage design, optimization, final engineering, and construction permitting of utility-scale energy storage projects.
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.
Senior Engineering Manager, Cloud Infrastructure MeshSenior Engineering Manager, Cloud InfrastructureSan Francisco, CaliforniaYou've driven developer productivity improvements that engineering teams actually noticed: internal platforms, toolchain automation, deployment speed, or developer experience initiatives that meaningfully changed how your team works. You'll tackle complex, meaningful problems that actually move an industry forward, working alongside a sharp, motivated team that moves quickly, collaborates deeply, and expects everyone to operate with ownership.
Senior/Staff Backend Software Engineer GridCARESenior/Staff Backend Software EngineerRedwood City, CaliforniaWhile leading tech companies invest billions in speculative, long-term solutions that may take decades to arrive, GridCARE’s pioneering physics-based generative AI platform unlocks gigawatts of hidden capacity in today’s electric grid — enabling hyperscalers, data center developers, and utilities to power AI infrastructure years sooner than conventional approaches and without costly upgrades. What matters most is depth: real experience in architecting, implementing, tuning, and debugging real time systems that have to run reliably in production, and genuine curiosity about growing that depth into broader platform and infrastructure ownership as GridCARE scales.
Software Engineer, Crypto Platform WorldSoftware Engineer, Crypto PlatformSan Francisco, CA$191,000–$225,000 / yearThe team owns the full transaction lifecycle, including state reads, calldata construction, smart contract interactions, backend execution paths, transaction submission, and the high-availability infrastructure required to process transactions reliably at scale. Engineers work closely with product teams to ensure wallet features, Mini App integrations, and ERC-4337-based flows remain robust across regions, providers, and failure domains.