Software Engineer - Platform/Applied AI (Fullstack) AfterQuerySoftware Engineer - Platform/Applied AI (Fullstack)San Francisco, CaliforniaWe're based in San Francisco and backed by leading investors including Altos Ventures, BoxGroup, and Y Combinator and angels from Google DeepMind, OpenAI, Anthropic, Meta Superintelligence Labs, and Microsoft AI. Strong Team: Our founding team has experience from Citadel Securities, Meta, Google, Silver Lake, and Morgan Stanley — work alongside world-class engineers and researchers.
Member of Technical Staff - AI Product EigenMember of Technical Staff - AI ProductSan Francisco, CaliforniaWe are well-capitalized and backed by Peter Fenton (Benchmark), David Singleton (ex CTO, Stripe), Gustav Söderström (CEO, Spotify), and only hire the best. Own the product experience end-to-end working across the stack from context engineering, agent harness, memory system, tooling, etc.
Member of Technical Staff - AI Platform EigenMember of Technical Staff - AI PlatformSan Francisco, CaliforniaWe are well-capitalized and backed by Peter Fenton (Benchmark), David Singleton (ex CTO, Stripe), Gustav Söderström (CEO, Spotify), and only hire the best. You must have experience designing large yet maintainable AI systems, and be excited to do so about 3 times faster than most people think is possible.
Staff Software Engineer, Brain Health, AI Hinge HealthStaff Software Engineer, Brain Health, AISan Francisco, CaliforniaThe company has designed its platform to address a broad spectrum of MSK care—from acute injury, to chronic pain, to post-surgical rehabilitation—and the platform can help to ease members’ pain, improve their function, and reduce their need for surgeries, all while driving health equity by allowing members to engage in their exercise therapy sessions from anywhere. Inclusive healthcare and benefits: On top of comprehensive medical, dental, and vision coverage, we offer employees and their family members help with gender-affirming care, tools for family and fertility planning, and travel reimbursements if healthcare isn’t available where you live.
Staff Software Engineer, Core AI Platforms GustoStaff Software Engineer, Core AI PlatformsSan Francisco, CA$163,000–$204,000 / yearHere's what you'll do day-to-day: Design and maintain evaluation frameworks across offline and online environments - including golden datasets, LLM-as-judge pipelines, and production replay - while establishing regression gates and end-to-end observability and tracing for agent runs. AI fluency: fluent, daily use of AI coding assistants (e.g., Claude Code, or equivalent AI harness) across the development lifecycle - writing, reviewing, debugging, and documenting code - with strong judgment on when to apply them, how to evaluate output quality, and how to stay current as the tooling evolves.
Senior AI Engineer — Agents Mira MaceSenior AI Engineer — AgentsSan Francisco, CaliforniaConcretely, you'll build agentic systems that carry multi-step work from start to finish, the evaluation infrastructure that tells us whether they're any good, the retrieval layer that gives them accurate knowledge to reason over, and the AI features our internal users rely on every day. Our founding team brings a mix of strong technical experience from companies like Google, Meta, Dropbox, and Amazon, along with serial startup experience ranging from early bootstrapped ventures to Series D scale-ups.
Senior/Staff AI Algorithms Engineer Dexterity.aiSenior/Staff AI Algorithms EngineerRedwood City, CA$170,000–$225,000 / yearTranslate open-ended problems into clear technical approaches, balancing modeling intuition with real-world constraints like latency, reliability, and partial observability. You'll be part of a team working across simulation, real robots, and multimodal sensor streams, applying first-principles thinking to unlock product capabilities where off-the-shelf ML solutions fall short.
Machine Learning Engineer Intern (Computer Vision/Multimodal/Generative AI) SpreeAIMachine Learning Engineer Intern (Computer Vision/Multimodal/Generative AI)San Francisco, CaliforniaThe work spans modern architectures such as diffusion models, transformers, and learned visual representations, with emphasis on controllability, compute efficiency, and production readiness. Your design work will directly impact how thousands (eventually millions) of people experience shopping with SPREEAI – no bureaucratic layers, your ideas can go live and make a difference immediately.
Founding AI Engineer WeaveFounding AI EngineerSan Francisco, CaliforniaTrusted by 200+ customers such as Robinhood, Rho, PostHog and Browserbase, we’ve delivered consistent double-digit month-over-month revenue growth since May and are looking to accelerate our growth. This is a rare opportunity to join at the ground floor and shape how millions of engineers and leaders understand engineering work.
Forward Deployed AI Engineer (Post-Sales) datologyaiForward Deployed AI Engineer (Post-Sales)Redwood City, CA$230,000–$300,000 / yearTraining on curated data can dramatically reduce training time and cost (7-40x faster training depending on the use case), dramatically increase model performance as if you had trained on >10x more raw data without increasing the cost of training, and allow smaller models with fewer than half the parameters to outperform larger models despite using far less compute at inference time, substantially reducing the cost of deployment. We raised a total of $57.5M in two rounds, a Seed and Series A. Our investors include Felicis Ventures, Radical Ventures, Amplify Partners, Microsoft, Amazon, and AI visionaries like Geoff Hinton, Yann LeCun, Jeff Dean, and many others who deeply understand the importance and difficulty of identifying and optimizing the best possible training data for models.
AI Engineer, Decision Intelligence recoursehealth.comAI Engineer, Decision IntelligenceSan Francisco, CaliforniaConcretely: which claims to contest, what to offer, what evidence to include, how to write the argument, and how all of that should change based on the payer, the arbitrator, the procedure codes, and everything we've learned so far. We are actively filing disputes for real customers, including a large multi-facility health system and a litigation-finance partner with hundreds of millions in claim value.
Senior AI Platform Engineer (Autonomous Driving) 42dotSenior AI Platform Engineer (Autonomous Driving)San Francisco, California$120,000–$280,000 / yearFrom building a robust lakehouse architecture for AD scene data to optimizing complex data processing pipelines, you'll work across disciplines to ensure the seamless flow of data that drives our autonomy stack forward. You will be responsible for setting the technical strategy and leading the development of our high-performance data platform, designed to process, manage, and serve massive-scale multimodal datasets for ML model training and validation.
Senior Machine Learning Engineer (Research Scientist) - Data Foundation & AI PlaidSenior Machine Learning Engineer (Research Scientist) - Data Foundation & AISan Francisco, CaliforniaWe work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. They are responsible for the full lifecycle of these systems, including pretraining data curation, model development and training, as well as production deployment, serving, and ongoing monitoring.
AI Operations Specialist Valerie HealthAI Operations SpecialistSan Francisco, CaliforniaAs Valerie scales, strong operators often expand their scope beyond core workflow execution to drive process improvements, support automation initiatives, and help shape how operations runs across new partners and products. Own Operational Delivery for Customers: Serve as the primary operations POC for partner practices, ensuring their workflows run smoothly and meet quality and performance expectations, including supporting the rollout and implementation of new product lines.
AI Specialist (AI Engineering) Hyphen Connect LimitedAI Specialist (AI Engineering)San Francisco, CaliforniaYour expertise will be crucial in developing and deploying cutting-edge AI solutions, ensuring optimal efficiency across diverse hardware architectures. We are looking for an AI Specialist Engineer to enhance the performance of large language and vision models for on-device inference.
ML / AI Software Engineer - C++ Metrics Frameworks General MotorsML / AI Software Engineer - C++ Metrics FrameworksSan Francisco, CA$129,000–$198,400 / yearRole: As an AI/ML Engineer on the Metrics Frameworks team, part of the Simulation, Evaluation, and Data organization, you will be an individual contributor focused on developing and optimizing infrastructure to accelerate autonomous vehicle development, testing, and deployment by creating specialized analytics frameworks and tools. This includes, but is not limited to, developing customized analytics workflows, improving operational telemetry and dashboards to track relevant KPIs for prioritization, and identifying, designing, and implementing solutions to achieve key results.
Senior Ai Research Scientist workatoSenior Ai Research ScientistSan Francisco, CAStrong publication record in top-tier ML venues (NeurIPS, ICML, ICLR) or demonstrable impactful experimental work; hands‑on experience with large‑scale model training, transformer architectures, reinforcement‑learning techniques, and CUDA. Workato delivers enterprise infrastructure for the agentic era, redefining iPaaS and helping enterprises unify data, applications, processes, and AI into a single, governed platform.
Embodied AI Researcher (VLA Models) Hyphen Connect LimitedEmbodied AI Researcher (VLA Models)San Francisco, CaliforniaThe successful candidate will contribute to cutting-edge research, designing models and experiments that advance the field of robotics through deep learning and zero-shot generalization. Strong programming skills in Python and familiarity with machine learning frameworks such as TensorFlow or PyTorch.
AI Safety Specialist (AI Engineering) Hyphen Connect LimitedAI Safety Specialist (AI Engineering)San Francisco, CaliforniaYou will ensure the safe deployment of AI systems by conducting adversarial testing, implementing protective measures, and aligning AI behavior with ethical principles. We are searching for an AI Safety Specialist who will play a crucial role in enhancing the security and robustness of language models.
Multimodal AI Systems Architect (AI Engineering) Hyphen Connect LimitedMultimodal AI Systems Architect (AI Engineering)San Francisco, CaliforniaThis role focuses on enhancing our voice-to-voice interactions and multimodal retrieval capabilities, ensuring our systems are efficient and innovative. We are seeking a talented Multimodal AI Systems Architect to develop and optimize AI systems that seamlessly integrate vision and audio models.