Senior Software Engineer, Machine Learning Infrastructure HandshakeSenior Software Engineer, Machine Learning InfrastructureSan Francisco, CaliforniaYou’ll help teams move quickly from prototype to production while building the reliable, high-performance systems that power training, evaluation, and inference across Handshake. This team powers both Handshake’s core career marketplace and Handshake AI by building the shared infrastructure behind our production ML and AI systems.
Staff Software Engineer Hayden AIStaff Software EngineerSan Francisco, CaliforniaYou will operate with complete technical ownership over major system components, mentoring junior and senior engineers, driving complex cross-functional initiatives, and making critical trade-off decisions that balance bleeding-edge innovation, system reliability, performance, and long-term maintainability across the entire Perception stack. As a Staff Software Engineer on the Perception team, you will be a key technical leader, defining and driving the long-term vision and architecture for our perception systems in forthcoming pilots, directly influencing Hayden’s mission and roadmap for business expansion.
Staff Automation Engineer SPANStaff Automation EngineerSan Francisco, CaliforniaHeadquartered in San Francisco’s vibrant SoMa neighborhood, we are an eclectic group of creative thinkers who value open communication, teamwork, and a ‘make it happen’ approach to addressing complex challenges. Additionally, there are three primary focus areas, you should fit into one or more of these: HITL-relevant: Understanding of hardware-in-the-loop testing, reliability testing, and certification testing methodologies.
Senior Software Engineer, Infra/Systems ConvexSenior Software Engineer, Infra/SystemsSan Francisco, CaliforniaIf you like the idea of designing a new storage layer that minimizes B-tree churn, or coming up with an API for managing ephemeral state that might disappear if a node restarts, or setting all that aside for a week and landing something simple and pragmatic because we’re a startup and need to ship, you’re going to like it here. Convex has assembled a team of engineers who have built and designed some of the largest platforms in the world, with exabytes of data, millions of transactions per second, and shipped desktop and mobile software onto billions of devices.
Software Engineer, Data Systems GammaSoftware Engineer, Data SystemsSan Francisco, CaliforniaYou'll work closely with analytics, product, and engineering leadership to enable data-driven decision making at scale while building systems that serve millions of users and inform critical business decisions. 10+ years as a data or software engineer with deep expertise in distributed systems, data infrastructure, and high-growth SaaS products at massive scale.
Space Communications Engineer Cowboy SpaceSpace Communications EngineerSan Carlos, CaliforniaOur satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities—from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
Sr. Battery Engineer Cowboy SpaceSr. Battery EngineerSan Carlos, CaliforniaDevelop a battery management system (BMS), including cell balancing (passive and active balancing techniques), state-of-charge (SOC) and state-of-health (SOH) estimation (coulomb counting, OCV-based, and model-based/Kalman filtering approaches), fault detection, and protection strategies (overvoltage, undervoltage, overcurrent, overtemperature, cell imbalance). Lead battery integration, validation, environmental qualification, and acceptance testing, including vibration/shock (per GEVS/NASA-STD-7001 or ECSS equivalents), thermal vacuum cycling (TVAC), vacuum outgassing (ASTM E595), and abuse testing (overcharge, short circuit, crush, penetration, thermal abuse).
Member of Technical Staff (Software Engineer, Data Platform) PerplexityMember of Technical Staff (Software Engineer, Data Platform)San Francisco, CaliforniaThe team defines the architecture for batch and streaming systems, the orchestration and observability stack, and a self-serve data platform, while thoughtfully combining platforms such as Databricks and Snowflake with open-source technologies including Spark, Kafka, Flink, Airflow, Dagster, dbt, Iceberg, Delta Lake, and ClickHouse. Set and enforce guarantees for data correctness, freshness, lineage, and recoverability, designing systems that handle rapid scale growth, partial failures, and evolving schemas without disrupting AI workloads or product experiences.
Senior Software Engineer, Infrastructure Sift StackSenior Software Engineer, InfrastructureSan Francisco, California8+ years of relevant distributed systems experience focusing on designing and managing cloud-based environments (e.g., AWS, Azure, GCP). Knowledge of automated testing best practices and frameworks, ensuring software reliability through integration, performance, and end-to-end testing in distributed systems.
Senior Software Engineer Tenex.AiSenior Software EngineerSan Jose, CaliforniaWe're a fast growing startup backed by industry experts and top tier investors led by Crosspoint Capital Partners and also backed by Shield Capital, DTCP (formerly Deutsche Telekom Capital Partners), Deepwork Capital, and the Florida Opportunity Fund. We are a force multiplier for defenders, helping organizations enhance their cybersecurity posture through advanced threat detection, rapid response, and continuous protection.
Software Engineer - Test Automation SpecterSoftware Engineer - Test AutomationSan Francisco, CaliforniaFailure analysis — In the inevitable cases where units fail in the field, interrogate root causes and integrate the lessons into future testing to avoid repeating these mistakes. Test requirements and design for testability — Engage early in the design process with HW, FW, and ME teams to drive testability requirements into the design and define what gets tested, at what stage, and to what pass/fail criteria.
Sr. Test Software Engineer, AI Workloads Cowboy SpaceSr. Test Software Engineer, AI WorkloadsSan Carlos, CaliforniaOur satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities—from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
PCB Layout Engineer Cowboy SpacePCB Layout EngineerSan Carlos, CaliforniaOur satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities—from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
Robotics & Control Engineer Rhoda AIRobotics & Control EngineerMountain View, CaliforniaOur robots are designed to be generalists capable of operating in complex, real-world environments and handling long-tail edge cases, made possible by our cutting edge research and end-to-end system design. We've raised over $450M and are investing aggressively in model research, infrastructure, hardware development, and manufacturing scale-up to make generalist robotics a reality.
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.
Avionics Test Engineer Cowboy SpaceAvionics Test EngineerSan Carlos, California$110,000–$150,000 / yearOur satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities—from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
Software Engineer - Systems SpecterSoftware Engineer - SystemsSan Francisco, CaliforniaDesign and build low-latency networking infrastructure connecting embedded devices and cloud systems — protocol design, congestion handling, and tuning for throughput and reliability across a distributed sensor network. This role owns the full stack from hardware interface to cloud edge, working closely with ML, perception, and platform teams to ship the performant, reliable systems that power autonomous monitoring across our customers' physical environments.
Firmware Engineer Cowboy SpaceFirmware EngineerSan Carlos, California$130,000–$185,000 / yearOur satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities—from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
Sr. Mechanisms Engineer Cowboy SpaceSr. Mechanisms EngineerSan Carlos, CaliforniaOur satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities—from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. The ideal candidate is a self-motivated expert with a versatile skill set and deep hands-on experience with flight mechanisms for high-reliability space systems, comfortable driving everything from conceptual design and performance budgeting to precision component procurement and rigorous hardware execution.
Platform Engineer ZyphraPlatform EngineerSan Francisco, CaliforniaYour work will be essential to ensuring the reliability and reproducibility of ML workloads, the safety and control of deployments, and the long-term maintainability of our compute environments. As a Platform Engineer , you’ll be responsible for designing and maintaining the systems that keep Zyphra’s infrastructure robust, observable, secure, and scalable.