Jobs in San Francisco, CA

Menlo Ventures Portfolio

Full-time · San Francisco, CA · $315,000 – $560,000

This role builds the computational infrastructure and tooling that lets researchers understand how large language models actually work internally, rather than treating them as black boxes. It's suited to experienced software engineers who want to work on AI safety through hands-on infrastructure work, enjoy translating research needs into systems, and are comfortable optimizing across the full stack from GPU kernels to user-facing tools.

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Astranis

Contract · San Francisco, CA · $100,000 – $135,000

Astranis is seeking a technical recruiter to build and manage full-cycle hiring pipelines for engineering and business roles at a fast-growing satellite communications company. This fixed-term position suits someone with prior recruiting experience in tech who can source top talent, improve hiring processes, and represent company culture to candidates.

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Menlo Ventures Portfolio

Full-time · San Francisco, CA · $380,000 – $450,000

Lead a sales team of 5-10 Account Executives focused on growing revenue with AI-native startup customers at Anthropic. This role suits experienced sales managers with a background in enterprise software or technical products who want to build high-performing teams while helping companies adopt frontier AI.

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Astranis

Full-time · San Francisco, CA · $145,000 – $185,000

Oversee production and assembly of propulsion subsystems for high-orbit satellites, from component fabrication through vehicle integration. This role suits experienced manufacturing engineers who thrive in fast-paced environments, want hands-on involvement in space technology, and can manage complex cross-functional projects with minimal direction.

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Menlo Ventures Portfolio

San Francisco, CA · $500,000 – $850,000

Anthropic is hiring a Staff-level engineer to build the data infrastructure that prepares massive text corpora for training large language models. You'll design scalable, reliable systems for tokenization, deduplication, and quality assurance—bridging research innovation with production engineering at one of the leading AI safety organizations.

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Astranis

San Francisco, CA

Listed on Astranis’s careers site · Apply there ↗

Menlo Ventures Portfolio

Full-time · San Francisco, CA · $175,000 – $295,000

This role involves building Anthropic's research teams by sourcing and hiring machine learning and AI researchers across multiple disciplines. The ideal candidate has deep recruiting experience with technical talent, understands AI safety concerns, and can innovate on hiring processes tailored to the research community.

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Astranis

San Francisco, CA · $160,000 – $215,000

Lead a team of power electronics engineers designing and building satellite power systems for high-orbit spacecraft at a well-funded aerospace company. This role suits experienced hardware engineers who want to move into technical leadership while staying hands-on with complex power converter design and implementation.

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Menlo Ventures Portfolio

Full-time · San Francisco, CA · $350,000 – $850,000

This role involves keeping Anthropic's large-scale language model training pipelines running reliably and efficiently, requiring someone comfortable operating production systems during launches while also contributing research improvements to the training stack. It suits engineers who enjoy both debugging complex infrastructure problems and designing experiments to optimize model performance.

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Astranis

Full-time · San Francisco, CA · $150,000 – $210,000

This role leads the mechanical design and lifecycle management of spacecraft subsystems at a satellite communications company, from concept through on-orbit operation. It suits experienced aerospace engineers who want to own complete hardware outcomes, mentor junior staff, and work hands-on in a fast-paced development environment.

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Menlo Ventures Portfolio

San Francisco, CA · $350,000 – $850,000

This role involves building infrastructure systems to train, evaluate, and deploy AI models at Anthropic, working across the full stack from data pipelines to performance optimization. It suits experienced infrastructure engineers comfortable with distributed systems, containerization, and large-scale ML workloads who want to contribute to AI safety research.

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Astranis

Full-time · San Francisco, CA · $36 – $47 / hour

This role involves operating CNC tube benders and fabrication equipment to build propulsion hardware for satellites, along with inventory management and quality inspections. It suits someone with hands-on manufacturing experience who thrives in a production environment and wants to contribute directly to advanced aerospace systems.

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Menlo Ventures Portfolio

Full-time · San Francisco, CA · $350,000 – $850,000

Anthropic seeks a Research Engineer to work across their full ML stack, tackling foundational challenges in building AI systems capable of scientific reasoning and complex problem-solving. This role bridges research and engineering, requiring deep expertise in language models, distributed systems, and performance optimization to scale prototypes into production systems.

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Astranis

Full-time · San Francisco, CA · $120,000 – $130,000

This role involves planning and executing environmental tests on satellite components and spacecraft to ensure quality and reliability. It's suited for engineers who enjoy hands-on test operations, equipment design, and cross-functional collaboration in a fast-paced aerospace setting.

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Menlo Ventures Portfolio

Full-time · San Francisco, CA · $350,000 – $500,000

This role involves designing and executing machine learning experiments to understand and improve the safety of advanced AI systems, particularly focusing on risks from highly capable models. You'll be part of a research team tackling problems like scalable oversight, AI control, and alignment stress-testing, requiring both scientific rigor and engineering skill.

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Astranis

San Francisco, CA

Listed on Astranis’s careers site · Apply there ↗

Astranis

San Francisco, CA

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Astranis

San Francisco, CA · $175,000 – $240,000

Astranis is hiring a senior engineer to design and verify FPGA logic for satellites and ground stations, working across radiation-tolerant hardware, high-speed data systems, and software-defined radios. This role suits someone with 5+ years of RTL experience who thrives in aerospace and wants to grow into a technical leader on a rapidly expanding team.

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Astranis

Full-time · San Francisco, CA · $44 – $49 / hour

Astranis seeks a mission operator to help fly and maintain satellites in orbit by executing procedures, monitoring system health, and collaborating with engineering teams. This role suits someone motivated to learn satellite operations who can work rotating shifts including nights and weekends in a high-stakes environment.

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Astranis

San Francisco, CA · $130,000 – $175,000

Develop flight software and firmware for satellites and ground station hardware at a commercial space company, working in C++ on communication protocols and high-reliability systems. This role suits mid-level embedded software engineers with experience building production systems who want to contribute to both commercial and government space programs.

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Astranis

Full-time · San Francisco, CA · $130,000 – $175,000

This role develops the software that controls and monitors Astranis satellites in orbit, from low-level component interfaces to ground station systems and automated testing frameworks. It suits engineers with solid C/C++ and Linux fundamentals who want hands-on responsibility for critical flight systems at a well-funded aerospace company.

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Astranis

San Francisco, CA

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Astranis

San Francisco, CA

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Astranis

San Francisco, CA · $180,000 – $235,000

Astranis is hiring a senior embedded software engineer to develop flight control software for satellites in high orbit, working on architecture, design, and implementation while mentoring junior engineers across multiple spacecraft subsystems.

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Astranis

San Francisco, CA

Listed on Astranis’s careers site · Apply there ↗