Member of Technical Staff, Pre-training Data Infrastructure
$180kxAI
Member of Technical Staff, Pre-training Data Infrastructure xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. All employees are expected to be hands‑on and to contribute directly to the company’s mission. Engineers should have strong communication skills and the ability to concisely and accurately share knowledge with teammates. Tech Stack Python / Rust / C++ Spark Ray Location Bay Area, including San Francisco and Palo Alto. Candidates are expected to be located nearby or open to relocation. Focus Design and implement petabyte‑scale, high‑throughput data processing systems that involve both CPU‑ and GPU‑based processing. Design and implement tools for orchestrating complex data pipelines. Design and implement innovative tools for improving data discoverability and data quality at scale for both pre‑training and post‑training across different modalities. Build, run, and manage innovative data pipelines for creating high‑quality training data. Ideal Experiences (at least one from below) Strong systems skills in configuring and troubleshooting complex distributed data processing systems for maximum performance. Building bespoke data processing systems from scratch. Preparing pre‑training and post‑training data for state‑of‑the‑art large language models and generative models. Organizing and meticulously bookkeeping data across multiple clouds, of multiple modalities, and from many sources. Interview Process After submitting your application, the team reviews your CV and statement of exceptional work. If you pass this stage, you will be invited to a 15‑minute interview (“phone interview”) during which a member of our team will ask some basic questions. If you clear the initial phone interview, you will enter the main process, which consists of four technical interviews: Coding assessment in a language of your choice. Systems hands‑on: Demonstrate practical skills in a live problem‑solving session. Project deep‑dive: Present your past exceptional work to a small audience. Meet and greet with the wider team. Our goal is to finish the main process within one week. All interviews will be conducted via Google Meet. Annual Salary Range
$180,000 – $440,000 USD
Benefits Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short and long‑term disability insurance, life insurance, and various other discounts and perks. xAI is an equal opportunity employer. #J-18808-Ljbffr xAI- ...Radiology Partners, Cognita’s models are trained and validated on one of the world’... ...datasets. About the Role As a Member of Technical Staff on the ML Infrastructure team, you will build and operate... ...large-scale compute, storage, and data movement for ML workloads. Design...DataTraining
$180k
...from the ground up. As part of the Compute Infrastructure team, you will own both the raw GPU... ...orchestration and virtualization — to make training and inference at xAI as fast, reliable,... ...equal opportunity employer. For details on data processing, view our Recruitment Privacy...DataTrainingTemporary work$180k
...seeking a highly skilled Senior Infrastructure Engineer to join our US... ...you will develop and manage training and inference clusters, as well... ..., with a focus on secure data handling. Drive system reliability... ...for tackling complex technical challenges in secure environments...DataTrainingTemporary work$180k - $220k
...At Vinci, we are building the operator intelligence infrastructure that modern hardware programs rely on daily. We have... ...across industries on realistic production workloads. Trained on 45TB+ of structured physics data Running billion-voxel inference in production...DataTraining- ...and robot systems to the infrastructure and state‑of‑the‑art... ...scale a high-throughput data infrastructure that processes... ...traceability across training runs Build internal... ...design to production Staff-level candidates are expected to define technical direction and own architectural...DataTrainingImmediate start
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- ...What You’ll Do As a Founding Member of the Technical Staff (Applied AI) at Architect,... ..., and the domain‑specific infrastructure that makes agents useful... ...— curating high‑quality data, defining evaluation criteria... ...the ML research, post‑training, and infra teams to turn hardware...DataTraining
- RadixArk is seeking a Member of Technical Staff — Training to build and scale the systems that train frontier... ...large-scale distributed training infrastructure for LLMs and generative models, pushing... ...large-scale distributed training (data, tensor, and pipeline parallelism)...DataTrainingFlexible hours
- Member of Technical Staff Physical AI (Robotics / World Models) Palo Alto, CA... ...evaluation and curated, real-world data. We work directly with... ..., evaluation, and model training. We design evaluation... ...that gap requires evaluation infrastructure that can systematically surface...DataTrainingShift work
$180k
Member of Technical Staff, Recommendation Systems About xAI xAI’s mission is to create AI systems... ...the user experience Write data pipelines and training jobs that continuously learn from... ...systems Who You Are Knowledge of data infrastructure like Kafka, Clickhouse, and Spark...DataTrainingTemporary workRelocation$180k
Member of Technical Staff - Imagine Safety ABOUT xAI xAI’s mission is to create AI systems that... ...build the critical safety systems and infrastructure that ensure Grok’s multimodal... ...user interactions, model outputs, and training data to continuously improve safety while...DataTrainingTemporary workWorldwide$180k
...generation across modalities—image, video, audio, and text—spanning the full stack: data curation/acquisition, tokenizer training, large-scale pre‑training, post‑training/alignment, infrastructure/scaling, evaluation, tooling/demos, and end‑to‑end product experiences....DataTrainingTemporary work$150k
...and real-time scenarios. We own the full training pipeline: massive data curation, premium audio processing, frontier speech-language pre‑training, and intensive post‑training... ...interaction quality, and experimentation infrastructure to measure and improve performance....DataTrainingTemporary work- ...hardware and robot systems to the infrastructure and state-of-the-art... ...scaling high-quality robot learning data. This role sits at the intersection... ...the demonstrations our models train on. What You’ll Do Design... ...datasets Collaborate with pre-training and post-training teams...DataTraining
$324k - $396k
...knowledge with their teammates. Member of Technical Staff (X.AI LLC; Palo Alto, CA):... ...and large language model training, pipeline parallelism... ...models with truthful data. Identify opportunities for... ...robust, high-availability infrastructure for AI/ML services. ∙ Collaborating...DataTrainingFull time- ...scenarios unseen in training. We work at the... ...frontier of large‑scale pre‑training for our... ...web‑scale video data, then adapt them... ...— from senior to staff — and welcome both... ...expected to define technical direction and drive... ...training and multi‑node infrastructure Why This Role...DataTrainingFull time
- ...robot systems to the infrastructure and state-of-the-... ...robot tasks. Post-training at Rhoda means... ...on internet-scale data and fine-tuning it... ...— from senior to staff. What You'll Do... ...Collaborate with the pre-training team to surface... ...to define technical direction and drive...DataTrainingShift work
- ...scenarios unseen in training. We work at the... ...Engineers to build the data and evaluation... ...levels — from MTS-Staff What You'll Do Design... ...closely with pre-training and post-... ...expected to define technical direction and drive... ...Build the benchmark infrastructure that gives the...DataTrainingFull time
- ...Radiology Partners, Cognita’s models are trained and validated on one of the world’s... ...datasets. About the Role As a Member of Technical Staff in Data Engineering, you will own the... ...experience building data pipelines or infrastructure for ML systems. Experience handling...DataTraining
$150k - $250k
...balance of creativity, curiosity, technical expertise, and ability to... ...-functional teams, such as Data Scientists, Machine Learning... ...essential. We appreciate when team members challenge assumptions, put... ...large foundational model pre-training to the user interface - is built...DataTrainingCurrently hiringWork at officeWork from homeVisa sponsorshipFlexible hours- ...with their teammates. ABOUT THE ROLE: The RL infrastructure team is looking for an engineer to help with low precision RL training and inference. RESPONSIBILITIES: Design... ...equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice...DataTraining
- ...reliable despite non-deterministic model behavior. Role As a Member of Technical Staff, Machine Learning, you will build core ML components. You... ...world ML. Focus Build and improve ML components across data, training, evaluation, and inference. Fine-tune and adapt models...DataTraining
$150k - $250k
About the Role Training world class LLMs and serving Pi at scale requires a world class infrastructure and team. Our work in pre‑training, fine‑tuning, and evaluation, as well as our product... ...to dive into a wide variety of technical challenges Like working in a fast‑paced...TrainingCurrently hiringWork at office$180k
...with their teammates. ABOUT THE ROLE The RL infrastructure team is looking for an engineer to help develop our RL training framework. RESPONSIBILITIES Design and implement... ...an equal opportunity employer. For details on data processing, view our Recruitment Privacy...DataTrainingTemporary work$180k
...teammates. About the Role The mid‑training team at xAI aims to provide... ...in multimodal mid‑training data. Tech Stack Python JAX and... ...interview”) during which a member of our team will ask some basic... ..., which consists of four technical interviews: Coding assessment...DataTrainingTemporary workRelocation$324k - $396k
About the Role Member of Technical Staff (X.AI LLC; Palo Alto, CA): Introduce innovative techniques and... .... Stabilize large language model training, pipeline parallelism training of large... ...tuning large language models with truthful data. Ensure organization’s work is aligned...DataTrainingRemote work$230k
...deliver industry-leading training and inference speeds and empowers... ...multiple openings for Sr. Member of Technical Staff. Title: Sr. Member of... ...and APIs to streamline data preprocessing, inference execution... ...documentation for infrastructure configurations, inference...DataTrainingRemote work$180k
...new project to deeply integrate xAI’s advanced AI infrastructure into a platform used by around 600 million users... ...We’re building xAI’s new storage tier that powers training, inference, recommendations, and real-time data extraction. We build and operate: A multi-tenant...DataTrainingTemporary work$148.5k - $223.9k
...systems with customers. With your strong technical competence, strategic thinking and... ...implementation track records, such as LLM, pre/post‑training, RL, agentic system. Prioritizes deep... ...information about how we use your personal data and your rights, including with regard...DataTraining
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