Founding Machine Learning Engineer [32913]
Stealth Startup
We're hiring our Founding Machine Learning Engineer (MLE) with expertise in Agent Development and Time-Series Modeling. You'll play a foundational role in building production-grade systems that combine the power of LLM-powered agents with time-series foundation models.
The Role
This is not a narrow research role — you'll design, train, deploy, and monitor ML systems end-to-end, moving from prototype to production with speed and autonomy. You'll also be a core contributor to defining how agents interact with multimodal numerical data, a problem space where the playbook does not yet exist.
Job Description:
- Design, train, and deploy production ML systems (LLM-powered agents + time-series models)
- Build and scale LLM-powered agents with advanced capabilities: multi-step reasoning, tool integration, autonomous workflows, memory/context management, and adaptive strategies
- Develop and refine evaluation frameworks for agents, ensuring reliability, safety, and measurable performance
- Apply and extend time-series modeling techniques (forecasting, anomaly detection, multimodal fusion) in real-world customer scenarios
- Operate end-to-end: from data ingestion and preprocessing to deployment, monitoring, and continuous improvement
- Stay ahead of the curve on the latest innovations in AI agents, orchestration frameworks, and infrastructure (MCP, A2A, etc.)
- Partner directly with researchers, engineers, and lighthouse customers to validate solutions and drive rapid iteration
What we're looking for:
- Proven industry experience (4-10 years) as an ML Engineer, Research Engineer, or Applied Scientist, with a track record of shipping production ML systems
- Hands-on expertise in LLM-powered agents: multi-step reasoning, tool use, context windows, autonomous workflows, agent memory
- Deep understanding of agent evaluation techniques (reliability, safety, success metrics)
- Up-to-date with modern agent infrastructure and frameworks (MCP, A2A, etc.)
- Fluency with ML engineering best practices: reproducibility, monitoring, scaling, CI/CD, observability
- Comfort operating in a fast-paced startup: shipping quickly, making tradeoffs, and thriving in ambiguity
Nice to have:
- Experience training custom neural networks beyond pre-trained LLMs (e.g., transformers for time-series or multimodal data)
- A background in time-series modeling (forecasting, anomaly detection, classical + deep learning approaches)
- Published research or open-source contributions in ML/AI
Location & Sponsorship
- Location: San Francisco Bay Area, CA (in-person)
- Visa Sponsorship: H1-B, O1
- ...About Parspec Founded in 2021, Parspec is revolutionizing material procurement for the $13 trillion USD construction industry... ...and largest industries. The Opportunity We're looking for a Machine Learning Engineer 1 to join our AI team in San Mateo. This is an early-career...SuggestedInternshipWork at officeFlexible hours
$225k - $325k
...Senior Machine Learning Engineer ABOUT THE ROLE This is a hands-on, high-ownership role for ML engineers who want to build production models... ...ship, and perform under real-world constraints. As a Founding Senior Machine Learning Engineer, you’ll work across the ML...SuggestedH1b- ...the high-performance reasoning engines that allow our autonomous... ...Design, train, and deploy deep learning models for semantic reasoning... ...adapt and elevate the unified machine learning stack for highway... ...related regressions and edge cases found in high‑speed driving...SuggestedTemporary workRelocation package
- ...About Parspec Founded in 2021, Parspec is revolutionizing material procurement for the $13 trillion USD construction industry... ...industries. The Opportunity We are seeking a highly skilled Senior Machine Learning Engineer to join our AI team and play a pivotal role in developing...SuggestedTemporary workWork at officeFlexible hours
$110k - $175k
...Machine Learning Engineer / Researcher — Hestus (YC) Location: San Mateo, CA (Onsite preferred — open to Bay Area candidates willing to commute... ...fundamentally change how hardware is designed and manufactured. Founded by repeat deep-tech entrepreneurs with experience from top...SuggestedFull timeWork at officeFlexible hours$151k - $257k
...Do you enjoy applying machine learning to complex, real‑world problems in autonomous vehicle testing? The Simulation Scenario Authoring team... ...simulation scenarios. We are looking for a hands‑on ML Engineer to integrate, implement, and optimize our next‑generation AV...Temporary workImmediate startRelocation package$100k - $300k
...Machine Learning Engineer, Reinforcement Learning Pittsburgh, San Mateo Company Overview At Skild AI, we are building the world's first general purpose robotic intelligence that is robust and adapts to unseen scenarios without failing. We believe massive scale...- ...Machine Learning Engineer (Audio Training) We're building human-like, real-time voice models focused on natural turn-taking, interruption... ...speech-to-speech, or streaming inference experience Competitive comp + meaningful equity. Founding-level ownership....
$189k - $227k
...detection, classification, and tracking systems. As a software engineer on the perception mapping team, you will be a key contributor to... ...vision or robotics Experience with training and deploying deep learning models Experience with Python libraries (pytorch, numpy) Bonus...Temporary workRelocation package$189k - $258k
...Generative Ai Engineer The Perception team at Zoox is at the forefront of leveraging... ...evaluate multi-sensor fusion based deep learning models to understand obstacles and environmental... ...MS or PhD in Computer Science, Machine Learning, or related technical field with...Temporary workRelocation package$225k - $250k
...STAFF APPLIED AI ENGINEER (LLMs, RAG, EVALUATION) SAN FRANCISCO BAY AREA — HYBRID $225,000 – $250,000 BASE + EQUITY The Opportunity We’re building AI systems that solve complex, real-world problems—including recommendation systems, object mapping, and knowledge...$214k - $257k
...behavior. We also work closely with our Perception, Simulation, and Systems Engineering teams to accelerate our ability to validate our driving performance. As a Prediction and Planning Machine Learning Engineer you will work on the bleeding edge of the industry, developing...Temporary workRelocation package$243.29k - $295.25k
...millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital... ...safer, more civil shared experiences for everyone. As a Senior Machine Learning Engineer on the Economy ML team, you will build models that power ranking...Full timeWork experience placementWork at officeLocal areaMonday to Friday$195.78k - $242.1k
...come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive... ...broad area of the tech spectrum, including machine learning, classifiers for 3D models,... ...our users. As a Senior Machine Learning Engineer within the Account Identity team, you will...Full timeWork experience placementH1bWork at officeLocal areaVisa sponsorshipMonday to Friday- ...Machine Learning Engineer - Perception Computer Vision Client is helping our client find Machine Learning Engineers, Perception Computer Vision, to develop advanced computer vision systems that enhance in-vehicle perception, directly impacting safety and fleet efficiency...
$211k - $263.5k
...thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for... .... The Shield team is looking for ML engineers with a passion for building out enterprise... .... ~5+ years of experience in applied machine learning ~ Lead design and implementation...Live inWork at officeShift work3 days per week- ...safe and efficient navigation in complex environments. As an engineer in the ODIN team, you will develop advanced multimodal large... ...autonomous system Qualifications: MS or PhD in Computer Science, Machine Learning, or related technical field Demonstrated experience training...
$179k - $245k
...Offline Driving Intelligence Engineer The Offline Driving Intelligence (ODIN) team at Zoox is leveraging the latest in AI to craft... ...Qualifications MS or PhD in Computer Science, Machine Learning, or related technical field Demonstrated experience training...Temporary workRelocation package$242k - $290k
...As a Perception Engineer, you will be instrumental in designing and implementing cutting-edge detection models, utilizing fused sensor... ...Experience with PyTorch or related ML frameworks Experience deploying learned models into production Excellent collaboration and teamwork...Temporary workRelocation package- ...Data Scientist Sit at the intersection of software engineering and data science. Leverage big data tools and programming... ...are ready to scale as needed. Prior experience with machine vision and machine learning in financial services is essential. Key...Internship
$242k - $290k
...classification, and tracking systems. As an engineer on the Localization team, you will be a... ...with training and deploying deep learning models Experience with Python libraries... ...Sitting at the intersection of robotics, machine learning, and design, Zoox aims to provide...Temporary workRelocation package$189k - $290k
...objects—all in real-time and with exceptional accuracy. As an engineer in the Scene Understanding team, you will develop advanced... ...driving in these situations. You'll work with state‑of‑the‑art machine learning models that operate in real‑time on our robotaxi platform with...Temporary workRelocation package- ...We are seeking an AI engineer to design and develop auto-labeling algorithms and platforms to facilitate AI model development for... ...autonomous driving stack. In this role, you will work closely with Machine Learning engineers, data scientists, and software engineers to build...Temporary workRelocation package
- ...Wisdom-Ai is looking for a backend/infrastructure engineer to join our founding team in San Mateo, California. You will work on building machine learning and data pipelines that are efficient and highly scalable. The role involves developing large scale data pipelines,...
$243.29k - $295.25k
...of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences-... ...more civil shared experiences for everyone. As a Senior Software Engineer on the Foundation AI organization, you will sit at the...Full timeWork experience placementH1bWork at officeLocal areaVisa sponsorshipMonday to Friday- ...geometric, interpretable algorithms and deep learning to detect near-collisions with obstacles... ...in the world Leverage our large-scale machine learning infrastructure to discover new... ...and push the boundaries of the field Engineer software that runs on-vehicle to efficiently...Temporary workRelocation package
$242k - $333k
...As a machine learning engineer within the Attributes team in the Perception department, you will take ownership of developing and enhancing sophisticated behavioral models for various road users, including vehicles, pedestrians, and cyclists. Your work will focus on creating...Temporary workRelocation package$345.04k - $399.42k
...of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences–... ...create safer, more civil shared experiences for everyone. Why Engineering Efficiency? The Engineering Efficiency AI Infrastructure Pod acts...Full timeWork experience placementWork at officeLocal areaMonday to FridayShift work$296k
...high‑level scene understanding, and you could work on any (or all!) of these components. As a Principal ML Engineer, you will lead the development of machine learning algorithms that can range in influence from onboard autonomy to offboard autonomy and validation. You...Temporary workImmediate startRelocation package$277k - $333k
...on the 3D Mapping team, a diverse set of engineers who are working together to build large-... ...algorithms and ML models for 2D/3D machine perception and mapping in real-world environments... ...with training and deploying deep learning models Proficiency in Python and/or C++...Temporary workRelocation package
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Founding Machine Learning Engineer [32913]. Be the first to apply!
- machine learning software engineer San Mateo, CA
- computer vision machine learning engineer San Mateo, CA
- machine learning engineer San Mateo, CA
- senior ml engineer San Mateo, CA
- machine learning San Mateo, CA
- artificial intelligence - machine learning intern San Mateo, CA
- machine learning research scientist San Mateo, CA
- data engineer machine learning San Mateo, CA
- machine learning scientist San Mateo, CA
- machine learning remote San Mateo, CA


