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Cohere

Cohere

San Francisco, CA
Applied AI Engineer – Agentic Workflows
No salary listedHybridML Engineering

Designs, builds, and deploys production-grade AI agents using LLMs for enterprise workflows. Collaborates with customers to solve business problems, ensures reliability, and mentors teams on agentic architectures.

Together AI

Together AI

San Francisco, CA

Senior Software Engineer - Together Cloud Infrastructure
$160k+/yrRemote5+ YOEDevOps / SRE

Build and maintain highly available AI cloud infrastructure virtualizing ML hardware like GB200 GPUs and BlueField DPUs, enabling self-serve Kubernetes/Slurm clusters for internal and external customers. Requires 5+ years experience with distributed systems, backend development (Golang preferred), and cloud providers.

Together AI

Together AI

San Francisco, CA

Senior Software Engineer - Together Cloud Platform
$160k+/yrRemote5+ YOEFullstack Engineering

Build highly available global AI cloud platform virtualizing ML hardware for self-serve services like Kubernetes clusters. Requires 5+ years in distributed systems, Golang expertise, cloud providers, and strong systems knowledge.

Together AI

Together AI

San Francisco, CA

Senior Developer Productivity Engineer
$150k+/yrOn-site5+ YOEDevOps / SRE

Owns systems and tooling to optimize developer workflows, CI/CD pipelines, and local environments for faster software delivery. Requires 5+ years in DevOps/SRE, proficiency in Python/Go/JS, and CI/CD expertise.

Together AI

Together AI

San Francisco, CA

Senior Backend Engineer, Inference Platform
$160k+/yrOn-site5+ YOEBackend Engineering

Build and optimize the core inference platform powering frontier AI models at global scale, focusing on low-latency routing, auto-scaling, and GPU resource management. Requires 5+ years in large-scale distributed systems and expert programming skills.

Tavily

Tavily

Israel

Data Engineer
No salary listedOn-site3+ YOEData Engineering

Build and optimize scalable data infrastructure and ETL/ELT pipelines supporting a Search API. The role requires 3+ years of data engineering experience, Python, SQL and NoSQL expertise, AWS experience, and a quantitative bachelor's degree.

Hebbia

Hebbia

New York, NY

GTM Recruiter
$150k+/yrOn-site4+ YOERecruiting

Full-cycle recruiter owning GTM hiring for Sales, Sales Ops, Solutions, and Customer Success at a high-growth AI startup. Requires 4+ years of GTM recruiting experience in fast-paced environments.

Unsiloed AI

Unsiloed AI

San Francisco, CA

Founding Software Engineer - Backend and Infrastructure
$150k+/yrOn-siteBackend Engineering

Founding engineer owns backend systems and infrastructure for document intelligence and VLM workflows, from R&D to production scale. Requires strong Python backend skills, distributed systems, and cloud/K8s expertise with full ownership mindset.

Unsiloed AI

Unsiloed AI

San Francisco, CA

Founding ML Researcher
$200k+/yrOn-siteAI Research

Founding ML Researcher shapes ML research direction for document AI, owns end-to-end lifecycle from research to production deployment. Requires expertise in VLMs, computer vision, unstructured data parsing; PhD preferred.

Sesame

Sesame

San Francisco, CA
Backend Infrastructure Engineer
$175k+/yrOn-site5+ YOEDevOps / SRE

Builds developer infrastructure tools including CI/CD pipelines, build systems, and self-serve frameworks to enable fast, reliable engineering workflows. Requires 5+ years experience with Python/TypeScript, automation focus, and dev tooling expertise.

HappyRobot

HappyRobot

San Francisco, CA

Infrastructure Engineer
$200k+/yrOn-site3+ YOEDevOps / SRE

Infrastructure Engineer owns system stability, observability, and debugging at scale. Requires 3+ years experience with Go, Kubernetes, and tools like Datadog/Prometheus for production incident response.

World Labs

World Labs

San Francisco, CA

Senior Product Engineer
$250k+/yrOn-site6+ YOEFullstack Engineering

Senior product engineer responsible for building polished, end-to-end web applications, backend services, and generative-model workflows. The role combines full-stack delivery, product partnership, technical leadership, and ownership of production quality, requiring 6+ years of software engineering experience.

World Labs

World Labs

San Francisco, CA

Research Scientist
$250k+/yrOn-site3+ YOEAI Research

Research Scientist developing and deploying large-scale diffusion and generative models for 3D worlds. Requires at least 3 years of generative modeling or applied ML experience, strong Python and deep learning framework expertise, and a record of impactful research or open-source contributions.

Reducto

Reducto

San Francisco, CA

Senior Software Engineer, Platform
$150k+/yrOn-site5+ YOEDevOps / SRE

Senior Software Engineer on the Platform team builds and optimizes core APIs and pipelines for document parsing using LLMs, integrates cutting-edge models, reduces latency/costs, and collaborates with ML engineers. Requires 5+ years experience with 2+ years in production LLMs and Python expertise.

NODA AI

NODA AI

Austin, TX

UI Engineer
No salary listedHybrid4+ YOEFrontend Engineering

Builds high-performance, gaming-inspired UI interfaces with WebGL 3D visualizations and Deck.gl data rendering for real-time autonomous vehicle fleet coordination. Requires 4+ years frontend experience, expertise in JavaScript/TypeScript, React/Vue/Angular, and 3D graphics optimization.

OpenAI

OpenAI

San Francisco, CA

Camera Firmware Engineer, Consumer Products
$293k+/yrHybridEmbedded Engineering

Owns low-level camera firmware enablement on custom hardware, from board bring-up to production capture. Develops reliable sensor drivers, capture paths, and debugging tools using strong C/C++ skills on embedded Linux systems.

OpenAI

OpenAI

San Francisco, CA
Backend Software Engineer (Evals)
$230k+/yrOn-site4+ YOEBackend Engineering

Build evals infrastructure and backend services for OpenAI's support automation, focusing on reliable pipelines, monitoring, and AI model integration. Requires 4+ years backend experience with Python, FastAPI, Postgres, and ML/LLM evals.

Lovable

Lovable

Stockholm, Sweden

Analytics Engineer
No salary listedOn-siteData Engineering

Owns the semantic and modeling layer of the data warehouse by transforming raw data into trustworthy datasets, reusable metrics, and documented data contracts. The role partners with domain and platform teams to support self-service analytics and efficient warehouse operations.

Giga

Giga

San Francisco, CA

Social Content Manager
$100k+/yrOn-siteContent Marketing

Owns daily content creation, editorial voice, and performance analysis for X and LinkedIn to build organic attention for an engineering-first AI company. Requires proven social media presence, high shipping cadence, and sharp judgment on B2B tech content.

Shield AI

Shield AI

Dallas, TX

Senior Engineer, Manufacturing (R4265)
$100k+/yrOn-site5+ YOEHardware Engineering

Designs and optimizes assembly tools, fixtures, and processes for advanced composite airframe fabrication in next-generation aircraft. Requires 5+ years in aircraft manufacturing, CAD proficiency (CATIA, NX), and expertise in structural assembly and compliance standards.

HappyRobot

HappyRobot

San Francisco, CA

Senior Software Engineer - Backend
$220k+/yrOn-site5+ YOEBackend Engineering

Builds and operates scalable backend services for AI-native operating system, focusing on real-time infrastructure, system reliability, and production services. Requires 5+ years experience, strong Go skills, and system design expertise.

HappyRobot

HappyRobot

San Francisco, CA

Software Engineer - Backend
$180k+/yrOn-site2+ YOEBackend Engineering

Backend-focused Software Engineer building and operating scalable services, real-time infrastructure for AI workflows using Go. Requires 2+ years experience in backend engineering and system design.

HappyRobot

HappyRobot

San Francisco, CA

Senior Software Engineer - Full-Stack
$220k+/yrOn-site5+ YOEFullstack Engineering

Senior Full-Stack Engineer owns end-to-end product sections, building scalable web apps and voice AI infrastructure. Requires 5+ years experience with TypeScript/Next.js frontend and Go backend expertise.

Voltai

Voltai

Remote

Field Application Engineer (Europe)
No salary listedRemote5+ YOESales Engineering

Provides technical support to integrate hardware and design systems with customer workflows, debugs complex software/hardware issues, and relays requirements to product teams. Requires 5+ years in hardware design/EDA and customer support skills.

Shield AI

Shield AI

San Diego, CA
Avionics Mechanical Engineering - Senior Engineering Manager (R4416)
$185k+/yrOn-site10+ YOEEngineering Management

Leads a team of mechanical engineers designing electro-mechanical avionics systems for autonomous UAVs, including packaging, thermal management, and integration. Drives analyses for harsh environments and ensures compliance, collaborating cross-functionally in aerospace development.

Exa

Exa

San Francisco, CA

Software Engineer, Distributed Data Systems
$180k+/yrOn-siteData Engineering

Architects and builds massive-scale data infrastructure for web crawling, embedding model training, and real-time search, handling hundreds of petabytes. Requires expertise in lakehouse architectures, distributed processing pipelines, and streaming systems like Kafka and Flink.

Granica

Granica

San Francisco, CA

Head of Finance — Strategic Finance & Corporate Development
$140k+/yrOn-site10+ YOEFinance & Accounting

Founding Head of Finance to lead capital strategy, FP&A, and performance systems for a high-growth AI infrastructure startup. Requires experience raising $50M+ rounds and scaling from Series B to IPO.

Broccoli AI

Broccoli AI

San Francisco, CA

Staff Software Engineer
$200k+/yrOn-site8+ YOEBackend Engineering

Staff engineer owns architecture for AI agents, real-time voice, integrations, and workflows at scale. Defines technical strategy, solves high-impact problems across the stack, and mentors the team. Requires 8+ years building complex systems.

Broccoli AI

Broccoli AI

San Francisco, CA

Senior Software Engineer
$180k+/yrOn-site5+ YOEFullstack Engineering

Senior Software Engineer owns major product areas end-to-end, designs scalable backend/frontend systems and integrations, works directly with customers, and mentors engineers. Requires 5-8+ years experience shipping complex features with high ownership in ambiguous environments.

Broccoli AI

Broccoli AI

San Francisco, CA

Software Engineer
$150k+/yrOn-site1+ YOEFullstack Engineering

Builds end-to-end backend and frontend features for AI-powered front-office operations in home services, including booking, scheduling, and dispatch. Requires 1-5 years experience, strong fullstack fundamentals, high ownership, and customer-facing iteration.

Arena

Arena

San Francisco, CA

Technical Recruiter
No salary listedHybrid10+ YOERecruiting

Technical Recruiter partners with hiring managers on full-cycle recruiting for deep-tech roles, focusing on sourcing passive talent in ML and research, building pipelines, and driving process excellence in a hybrid environment.

Arena

Arena

San Francisco, CA

Senior Software Engineer, ML Infrastructure
No salary listedHybrid5+ YOEML Engineering

Leads design and development of scalable, real-time API and data infrastructure for AI model evaluations, processing large-scale event streams with low latency. Requires 5+ years in infrastructure or ML systems, expertise in distributed systems, stream processing, and backend architecture.

Arena

Arena

San Francisco, CA

Staff Software Engineer, Product
No salary listedHybrid8+ YOEFullstack Engineering

Staff Software Engineer owns entire product areas end-to-end at an AI evaluation platform, designing full-stack systems, making high-stakes technical decisions, shipping features, and driving measurable impact. Requires 8+ years experience with deep technical expertise in web apps and product judgment.

Arena

Arena

San Francisco, CA

Senior Software Engineer, Data Infrastructure
No salary listedHybrid5+ YOEData Engineering

Build and scale data pipelines to process millions of user votes for AI model evaluation. Partner with researchers to deliver insights via dashboards, ensuring data quality and reliability in a fast-paced environment. Requires 5+ years in data engineering with big data tools.

Arena

Arena

San Francisco, CA

Founding Product Security Engineer
$210k+/yrHybrid6+ YOESecurity Engineering

Leads product security strategy, designs and implements identity, auth, and secure inference paths for a large-scale AI evaluation platform. Requires 6+ years securing user-facing systems with backend proficiency and threat modeling expertise.

Arena

Arena

San Francisco, CA

Machine Learning Scientist - Open Source Lead
No salary listedHybridAI Research

Leads open-source ML research by designing experiments, developing evaluation methodologies, analyzing preference data, and releasing datasets/code to advance AI model transparency. Requires PhD-level expertise in ML/LLMs and hands-on experience with RLHF/DPO fine-tuning.

Arena

Arena

San Francisco, CA

Machine Learning Scientist
No salary listedHybridAI Research

Designs and conducts experiments to evaluate AI models using human preference data, develops new metrics and methodologies, and analyzes large-scale interaction data to advance model reliability and alignment.

character.ai

character.ai

Redwood City, CA

Software Engineer, Applied ML (Discovery, Recommendation & Search)
$200k+/yrOn-site5+ YOEML Engineering

Builds and optimizes ML backend systems for recommendation, ranking, and search in a fast-growing AI consumer app. Requires 5+ years experience, CS bachelor's, ML frameworks like PyTorch/TensorFlow, cloud infra, and modern typed languages.

Auctor

Auctor

New York, NY

Senior Software Engineer, Backend
$250k+/yrOn-site4+ YOEBackend Engineering

Leads backend engineering projects building AI-powered systems for enterprise document retrieval, collaborative workflows, multi-step planning agents, security, LLM evaluation, and data ingestion pipelines from tools like Confluence and Jira. Requires 4+ years backend experience on SaaS products, scalable systems architecture.

Auctor

Auctor

New York, NY

Deployment Strategist
$130k+/yrOn-site2+ YOESolutions Architecture

Deploys Auctor's AI platform by configuring agents for customer workflows, leading onboarding/training, and delivering demos for enterprise software implementations. Requires 2-10+ years in consulting/professional services/solutions engineering with technical comfort.

Elicit

Elicit

Oakland, CA

Growth
$133k+/yrRemote5+ YOEGrowth Marketing

Build and lead demand generation and field marketing for enterprise life sciences and research accounts, executing multi-channel campaigns, A/B testing, and analytics-driven optimizations to drive pipeline and revenue. Requires 5-7 years B2B marketing experience, strong quantitative skills, and startup builder mindset.

Auctor

Auctor

New York, NY

Forward Deployed Engineer
$175k+/yrOn-siteSolutions Architecture

Leads end-to-end custom integrations and builds tailored workflows for strategic enterprise customers. Works across full stack including Python, TypeScript/Next.js, collaborating directly with clients and feeding insights to product team.

PlantingSpace

PlantingSpace

Remote

Product Software Engineering - Quantitative Modeling
No salary listedRemoteFullstack Engineering

Develops product demos for quantitative modeling system in finance and scientific research, productizing research software by implementing use-case applications, identifying strengths/limitations, and improving the product. Requires experience commercializing research software and applied mathematical modeling.

Shield AI

Shield AI

Dallas, TX

Staff Engineering Specialist, Avionics
$75k+/yrOn-siteHardware Engineering

The Staff Engineering Specialist, Avionics will support the Avionics team in designing, verifying, procuring, manufacturing, and testing custom avionics systems for the X-BAT aircraft. This role involves setting up test campaigns, debugging issues, designing PCBAs, and building wire harnesses.

Krea

Krea

San Francisco, CA

ML Engineer - Personalization & Recommendation Systems
No salary listedOn-siteML Engineering

Builds personalization and recommendation systems from scratch for AI creative tools, modeling user taste and curating feeds. Designs algorithms for generative models to adapt to individual aesthetics, using ML frameworks like PyTorch/JAX.

OpenAI

OpenAI

San Francisco, CA

Release Engineer, Consumer Products
$293k+/yrHybridDevOps / SRE

Designs and operates CI/CD pipelines and release infrastructure for multi-component systems including bootloaders, firmware, and OTA updates. Requires strong automation skills in Python/Bash, Linux expertise, and experience with build systems for embedded/consumer products.

OpenAI

OpenAI

San Francisco, CA

System Software Engineer, Consumer Products
$293k+/yrHybridEmbedded Engineering

Designs, implements, and debugs core platform software components across kernel and user space for reliable, secure consumer products. Requires strong C/C++ proficiency, OS internals knowledge, and systems debugging expertise.

OpenAI

OpenAI

San Francisco, CA

Embedded SWE, Consumer Products
$293k+/yrHybrid10+ YOEEmbedded Engineering

Designs, implements, and debugs embedded software for consumer devices, owning low-level bring-up and optimizations. Requires 10+ years shipping embedded systems with strong C/C++ and hardware collaboration skills.

Coram AI

Coram AI

Sunnyvale, CA

Product Manager
$140k+/yrOn-site2+ YOEProduct Management

Owns end-to-end video security product line, drives roadmap and AI strategy with CEO, partners with engineering, design, sales, and customers to ship features rapidly and scale revenue. Requires 2+ years PM experience, BS in CS/Engineering, and startup pace resilience.

HappyRobot

HappyRobot

San Francisco, CA

Technical Recruiter
$160k+/yrOn-site4+ YOERecruiting

Technical Recruiter owning full-cycle recruiting for engineering and operations roles at a high-growth AI startup. Partners with founders to source, pipeline, and close top technical talent with 4+ years experience.