Member of Technical Staff - RL Data Scaling
$180kxAI
About xAI
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. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.
About the Team
The team focuses on scaling up high-quality reinforcement learning data for training Grok reasoning models. Our team spans the end-to-end data lifecycle, including designing evaluations, curating and synthesizing training data, and advancing RL algorithms.
About the Role
In this role you might:
- Design pipelines to scale up RL data generation and collection.
- Innovate next-paradigm of RL algorithms
Exceptional candidates may have:
- Strong engineering abilities
- Extremely familiar with large language model data collection
- Optional: Experiences with cross-domain expertise
Location
- We hire engineers in Palo Alto. Our team usually works from the office 5 days a week but allow work-from-home days when required. Candidates are expected to be located near Palo Alto or open to relocation.
Interview Process
After submitting your application, the team reviews your CV and statement of exceptional work. If your application passes 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.
- Technical sessions (2): These sessions will be testing your ability to formulate, design and solve concrete problems in real world with LLM.
- Meet the Team: Present your past exceptional work and your vision with xAI to a small audience.
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 & long-term disability insurance, life insurance, and various other discounts and perks.
xAI is an equal opportunity employer.
$180k
Member of Technical Staff - RL Infrastructure About xAI xAI’s mission is to create AI systems that can accurately... ...software engineers to create robust data pipelines, comprehensive evaluations... ...-processing to prepare it for large-scale RL training. How do we standardize our...DataTemporary work$180k
...perfect reliability. As a Member of Technical Staff - Inference, you will design and optimize large-scale model serving systems end-to-end... ...on scaling test-time compute, RL rollout, and model-hardware co... ...employer. For details on data processing, view our Recruitment...DataTemporary work$180k
...including reward modeling, preference optimization (RLHF/DPO), and RL for improving reasoning, truthfulness, and real-world... ...discounts and perks. xAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice....DataTemporary work$180k
...Member Of Technical Staff - Mid-training Palo Alto, CA xAI's mission is to create AI systems... .... Responsibilities: Scale synthetic coding data to trillions of tokens with large-scale... ...mixtures to boost the ceiling for RL. Engineer long-context data recipes...DataTemporary work- ...Member Of Technical Staff — Training RadixArk is seeking a Member Of Technical... ...Staff — Training to build and scale the systems that train... ...scale distributed training (data, tensor, and pipeline parallelism... ...developed Miles (our large-scale RL framework). We're on a...DataFlexible hours
$180k
...Member of Technical Staff - Multimodal Understanding Palo Alto, CA About xAI... ...text—spanning the full stack: data curation/acquisition, tokenizer training, large-scale pre-training, post-training/alignment... ...the stack (pre-training → SFT/RL/post-training) to enable...DataTemporary work$200k - $350k
...Member Of Technical Staff, Reinforcement Learning Inception creates the world'... ...You will design and implement RL training pipelines for our... ...behavior with human intent at scale. Key Responsibilities... ...generative AI models. Work on data preprocessing pipelines,...DataImmediate startFlexible hours- Member of Technical Staff Physical AI (Robotics / World Models) Palo Alto, CA About... ...and curated, real-world data. We work directly with leading... ...frameworks, and training and RL pipelines that shape how... ...approximate human evaluation at scale Iterate on datasets and...DataShift work
$180k
...multimodal mid‑training data. Tech Stack Python... ...boost the ceiling for RL. Engineer long‑context... ...in ML and large model scaling, with familiarity across... ...interview”) during which a member of our team will ask... ...which consists of four technical interviews: Coding assessment...DataTemporary workRelocation$180k
...interview (“phone interview”) during which a member of our team will ask some basic questions... ...the main process, which consists of four technical interviews: Coding assessment in a... ...and trade secret information, and/or user data; Interacting with internal and/or external...DataLocal areaRelocation$180k
...Member Of Technical Staff - Imagine Model Palo Alto, CA; Seattle, WA About... ...video). Responsibilities span data curation, modeling, training... ...synthesis, agentic planning, RL training, and world... ...developing or working with large-scale distributed machine learning...DataTemporary work- ...revolution. What You'll Do As a Founding Member of the Technical Staff (ML infra) at Architect, you'll be responsible for... ...of building end-to-end ML pipelines, including data curation, preparation, and large-scale LLM finetuning (RLHF, SFT). Debugging & Optimization...Data
$180k
...Member of Technical Staff - Data Platform Palo Alto, CA About xAI xAI's mission is to create AI systems that can accurately understand the... ...and operates the infrastructure responsible for all large-scale data transport and processing across the company. We own...DataTemporary work$180k
...Member Of Technical Staff - Pre-Training Palo Alto, CA About XAI XAI's mission is to create... ...trillion parameter neural networks at scale, as well as a variety of smaller specialized... ...opportunity employer. For details on data processing, view our Recruitment...DataTemporary work$180k
...Member Of Technical Staff - Grok Product Palo Alto, CA xAI's mission is to create AI systems that can accurately understand... ...systems for personalized, reliable interactions at global scale. Build and optimize data pipelines using real-time user signals to...DataTemporary work$180k
...Member Of Technical Staff - Media Palo Alto, CA; Seattle, WA About XAI XAI's mission is to create... ...Build the next generation of large-scale video services Contribute to and... ...opportunity employer. For details on data processing, view our Recruitment Privacy...DataTemporary work$180k
...Member of Technical Staff - Imagine Safety Palo Alto, CA About xAI xAI's mission is to create... ...responsibly deployed. You'll design and scale safeguards, detection systems, and... ...interactions, model outputs, and training data to continuously improve safety while...DataTemporary workWorldwide$180k
...Member Of Technical Staff - Voice Product Palo Alto, CA xAI's mission is to create AI systems that... ...of voice interactions at global scale. Move fast across platforms and product... ...opportunity employer. For details on data processing, view our Recruitment Privacy...DataTemporary work$180k
...Member of Technical Staff - X Money New York, NY; Palo Alto, CA xAI's mission is to create AI systems... ...contribute to the creation of a high-scale financial products platform. This is... ...Develop backend services, APIs, and data models to support high-volume, multi-user...DataTemporary work$200k - $350k
...Member Of Technical Staff, Data Infrastructure Inception creates the world's fastest, most efficient AI models. Our Mercury model is the world's... ...The Role We seek experienced engineers to architect and scale the core infrastructure behind distributed training pipelines...DataImmediate startFlexible hours- ...Member Of Technical Staff Memphis, TN About XAI XAI's mission is to create AI systems that can... ...enhancing reliability across a multi-data center environment. This role focuses... ...based on industry benchmarks from high-scale environments like those at hyperscale...Data
- ...focused on expanding access to radiology at scale. Our founding team met at Stanford,... ...datasets. About the Role As a Member of Technical Staff focused on model training, you will be... ...role owns how models are trained: how data flows into training, how training jobs...Data
- About the Role As a Member of Technical Staff [Platform] at NeoCognition , you’ll design and build the... ...iterate rapidly, deploy confidently, and scale intelligently. This role sits at the... ...software engineers to ensure that our data, model, and product workflows are...Data
- ...focused on expanding access to radiology at scale. Our founding team met at Stanford,... ...datasets. About the Role As a Member of Technical Staff on the ML Infrastructure team, you will... ...manage large-scale compute, storage, and data movement for ML workloads. Design and...Data
- ...deterministic model behavior. Role As a Member of Technical Staff, Machine Learning, you will build core... ...from day one, learning how large‑scale ML behaves outside of research settings... ...Build and improve ML components across data, training, evaluation, and inference....DataImmediate start
- About the Role As a Member of Technical Staff [Research] at NeoCognition , you’ll be part of the core team advancing the frontier of LLM... ...computer-use) LLM post-training (instruction tuning, RL, reasoning) Data pipeline design and model evaluation Proficiency in Python...Data
$180k
...products and systems at massive scale across bidding, auction,... ...phone interview”) during which a member of our team will ask some basic... ...process, which consists of 2 technical interviews and 1 project deep-... ...secret information, and/or user data; Interacting with internal and...DataWork at officeLocal areaWork from home- ...and tools for on-demand custom ASICs at scale. Our goal is to co-design custom ASICs... ...Intel. What You'll Do As a Founding Member of the Technical Staff on the RTL Design team at Architect,... ...block-specific compute datapaths and data movement; such as MAC arrays, vector units...Data
$180k
...teammates. About the Team The Data Platform team at X builds and... ...infrastructure responsible for all large‑scale data transport and processing... ...interview”) during which a member of our team will ask some... ...process, which consists of 2 technical interviews and 1 project deep‑...DataTemporary workWork at officeWork from home$220k - $300k
We are looking for a Principal Member of Technical Staff to join our engineering organization as a cross... ...teams to tackle our hardest backend scaling, reliability, and security product challenges... ..., async processing pipelines, and data infrastructure. Drive technical...Data
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Member of Technical Staff - RL Data Scaling. Be the first to apply!
- customer support analyst Palo Alto, CA
- systems support technician Palo Alto, CA
- help desk administrator Palo Alto, CA
- decision support analyst Palo Alto, CA
- technical support assistant Palo Alto, CA
- technical analyst Palo Alto, CA
- technical assistant Palo Alto, CA
- IT support technician Palo Alto, CA
- application support technician Palo Alto, CA
- user support analyst Palo Alto, CA


