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Annotation Tech Jobs in California (NOW HIRING)

Senior Staff Tech Lead, VLM

Palo Alto, CA · On-site

$265K - $331K/yr

In this Tech Lead role, you will drive and deliver the overarching VLM strategy, which includes ... annotation vendors. * Iterate and optimize performance: Establish rigorous evaluation and ...

AI Linguist - Hybrid

Mountain View, CA · On-site

$38.61 - $45.48/hr

... technology Experience with human judgment projects and flows Experience with complex and scalable data annotations and evaluations Experience with programming languages in data annotation space ...

Linguist II (LLM/AI)

Sunnyvale, CA · On-site

$36 - $40.20/hr

... technology, and programming familiarity and a proven ability to support data collection, synthetic data generation, and annotation efforts for LLM/AI training, evaluation, alignment, and AI agent ...

... annotation pipelines. Preferred Qualifications: * Understanding of ML data pipelines and their applications. * Experience working with LLMs. * Familiarity with data labeling for audio technologies ...

Showing results 41-60

Annotation Tech information

What is an annotation tech?

Annotation Techs, short for Annotation Technicians, are professionals who label, categorize, and tag data—such as images, text, or audio—to help train machine learning models. Their work is critical in fields like artificial intelligence, where high-quality, accurately labeled data is needed to teach algorithms how to recognize patterns and make decisions. Annotation Techs may use specialized software tools to identify objects in images, transcribe speech, or classify pieces of text. Attention to detail and consistency are key skills in this role, as errors or inconsistencies can affect the performance of AI systems. These professionals often work in teams and may collaborate with data scientists and engineers to ensure data quality.

What is the difference between Annotation Tech vs Data Labeler?

AspectAnnotation TechData Labeler
Required CredentialsHigh school diploma or equivalent; some roles may prefer technical certificationsHigh school diploma or equivalent; minimal certifications needed
Work EnvironmentOffice or remote; using specialized annotation toolsOffice or remote; using basic labeling software
Industry UsageAI, machine learning, autonomous vehicles, healthcareAI, machine learning, data preparation

Annotation Tech and Data Labeler roles often overlap in data preparation for AI projects. Annotation Tech typically involves more specialized tools and may require some technical knowledge, whereas Data Labelers focus on basic labeling tasks. Both roles are essential in training AI systems, but Annotation Tech positions often demand a deeper understanding of annotation processes and tools.

What skills and qualifications are needed to thrive as an annotation tech?

To thrive as an Annotation Tech, you need strong attention to detail, data labeling proficiency, and familiarity with data annotation guidelines, often supported by a background in computer science or related fields. Experience with annotation platforms such as Labelbox, Supervisely, or CVAT, and sometimes knowledge of basic scripting or data formats like JSON and XML, is typically required. Excellent communication, problem-solving skills, and the ability to follow complex instructions set top performers apart. These skills ensure high-quality, accurate data labeling that directly impacts the effectiveness of machine learning models.

What are common challenges faced by annotation techs when working with large datasets?

Annotation Techs often work with large and diverse datasets, which can present challenges such as maintaining consistency and accuracy across annotations, especially when dealing with ambiguous or complex data. Additionally, the repetitive nature of the work can lead to fatigue, making it important to stay focused and adhere to established guidelines. Collaboration with data scientists and project managers is crucial to clarify requirements and address any uncertainties, ensuring that the annotated data meets project standards and deadlines.
What are popular job titles related to Annotation Tech jobs in California? For Annotation Tech jobs in California, the most frequently searched job titles are:
What job categories do people searching Annotation Tech jobs in California look for? The top searched job categories for Annotation Tech jobs in California are:
What cities in California are hiring for Annotation Tech jobs? Cities in California with the most Annotation Tech job openings:
Infographic showing various Annotation Tech job openings in California as of August 2026, with employment types broken down into 2% As Needed, 72% Full Time, 13% Part Time, 2% Temporary, 10% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Senior Staff Tech Lead, VLM

Rivian

Palo Alto, CA • On-site

$265K - $331K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 27 days ago


Rivian rating

7.3

Company rating: 7.3 out of 10

Based on 159 frontline employees who took The Breakroom Quiz

20th of 44 rated automakers


Job description

About Rivian
Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract.
As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations.
Role Summary
Vision-Language Models (VLMs) are a foundational pillar of our Autonomy stack. In this Tech Lead role, you will drive and deliver the overarching VLM strategy, which includes training and shipping VLM models, extending to multi-modalities, enabling new use cases, among others. In this role, you will also be responsible to architect VLM-driven solutions to solve some of autonomy's hardest challenges, including automated data mining, handling long-tail
distributions, rare edge-case detection, and scene anomaly reasoning. You will also drive our large-scale training data acquisition strategy for VLM-related model training, closely
collaborating with our teams and partners. You will also own the whole end-to-end lifecycle of VLM model delivery: data acquisition, metrics definition, benchmarking, model performance optimization, deployment, feedback loop. Collaborating broadly across the Autonomy org, you will serve as the champion for VLM models and data mining capabilities, as well as represent these efforts in our interactions with other teams
Responsibilities
  • Drive and deliver the VLM strategy: Own the holistic roadmap of the VLM strategy, including training and delivering VLM models, deployment, alignment, and ensuring a unified vision across the Autonomy org.
  • Accelerate data mining: Design and deliver VLM-related models and strategies that power automated data mining, long-tail distributions, rare/edge case detection, and anomaly detection at scale.
  • Drive and deliver the data acquisition strategy: Architect the strategy for large-scale training data acquisition to train the VLM models and improve their performance, establishing workflows with in-house and 3rd-party annotation vendors.
  • Iterate and optimize performance: Establish rigorous evaluation and monitoring benchmarks. Identify and root-cause top-tier system anomalies, prioritizing high-impact optimizations to continuously push the needle on performance.
  • Cross-functional collaboration: Partner closely with core Autonomy teams (Perception, Planning, Calibration, Systems, etc) to translate vehicle feature requirements into concrete ML deliverables.
  • Influence trade-offs & requirements: Define system requirements and guide cross-functional efforts through technical trade-off decisions

Qualifications
  • Education: BS, MS, or PhD in Computer Science, Robotics, Electrical Engineering, or a highly related quantitative field.
  • Experience: 5+ years of professional experience scaling ML solutions, with a strong focus on the following:
    • VLM model training: Hands-on experience training or fine-tuning VLMs using modern parameter-efficient techniques (LoRA, QLoRA) and RL alignment.
    • Large-scale data mining: Proven track record developing VLM/LLM-related techniques for data mining, long-tail distributions, rare cases, safety-critical events.
    • Zero/few-shot capabilities: Experience with open-vocabulary, zero-shot, or few-shot classification models, particularly in long-tail scenarios.
    • Training data strategy: Experience with driving training data acquisition strategy to train VLM-related models, defining data annotation guidelines, partnering effectively with in-house and external 3P annotation vendors.
    • System engineering: Strong proficiency in Python alongside a solid understanding of modern Perception pipelines, benchmarking tools, and infrastructure.
    • Execution: Demonstrated ability to root-cause complex issues across a distributed, cross-functional stack in a fast-paced environment.

Preferred Qualifications
  • Experience applying VLMs within the Autonomous Vehicle domain.
  • Experience with Auto Prompt Optimization (APO) and automated prompt engineering techniques.
  • Experience with spatial grounding in 2D and/or 3D.
  • Experience extending foundational models to extra modalities (e.g., LiDAR, Radar, IMU, ego-motion).
  • Experience utilizing VLMs or Foundation Models for complex behavior reasoning and
    planning.
  • Experience with onboard edge deployment, cloud inference architectures, and balancing compute/efficiency trade-offs.
  • Experience with quantization techniques (PTQ, QAT) and high-performance inference engines like TensorRT

Pay Disclosure
The salary range for this role is $265,000-331,300 for San Francisco Bay Area based applicants. This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, geographic location, shift, and organizational needs.
We offer a comprehensive package of benefits for full-time and part-time employees, their spouse or domestic partner, and children up to age 26, including but not limited to paid vacation, paid sick leave, and a competitive portfolio of insurance benefits including life, medical, dental, vision, short-term disability insurance, and long-term disability insurance to eligible employees. You may also have the opportunity to participate in Rivian's 401(k) Plan and Employee Stock Purchase Program if you meet certain eligibility requirements. Full-time employee coverage is effective on their first day of employment. Part-time employee coverage is effective the first of the month following 90 days of employment. More information about benefits is available at rivianbenefits.com.
Equal Opportunity
Rivian is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition, or any other characteristic protected by law.
Rivian is committed to ensuring that our hiring process is accessible for persons with disabilities. If you have a disability or limitation, such as those covered by the Americans with Disabilities Act, that requires accommodations to assist you in the search and application process, please email us at candidateaccommodations@rivian.com.
Candidate Data Privacy and Technology
Rivian may collect, use and disclose your personal information or personal data (within the meaning of the applicable data protection laws) when you apply for employment and/or participate in our recruitment processes ("Candidate Personal Data"). This data includes contact, demographic, communications, educational, professional, employment, social media/website, network/device, recruiting system usage/interaction, security and preference information. Rivian may use your Candidate Personal Data for the purposes of (i) tracking interactions with our recruiting system; (ii) carrying out, analyzing and improving our application and recruitment process, including assessing you and your application and conducting employment, background and reference checks; (iii) establishing an employment relationship or entering into an employment contract with you; (iv) complying with our legal, regulatory and corporate governance obligations; (v) recordkeeping; (vi) ensuring network and information security and preventing fraud; and (vii) as otherwise required or permitted by applicable law.
Rivian may share your Candidate Personal Data with (i) internal personnel who have a need to know such information in order to perform their duties, including individuals on our People Team, Finance, Legal, and the team(s) with the position(s) for which you are applying; (ii) Rivian affiliates; and (iii) Rivian's service providers, including providers of background checks, staffing services, and cloud services.
Rivian may transfer or store internationally your Candidate Personal Data, including to or in the United States, Canada, the United Kingdom, and the European Union and in the cloud, and this data may be subject to the laws and accessible to the courts, law enforcement and national security authorities of such jurisdictions.
How We Use AI in Our Hiring Process: To ensure transparency, we want candidates to know that Rivian uses iCIMS Talent Cloud Artificial Intelligence (TCAI) and AI-enabled tools to assist with screening, reviewing, organizing and highlighting profiles and applications that match the key requirements for each role.
AI does not make hiring decisions: Qualified candidate applications are reviewed by a member of our team, and all decisions throughout the process are made by humans. We use AI to support efficiency and consistency, not to replace human judgment. We are committed to a fair, thoughtful, and equitable experience for every candidate.
Participation in AI profile matching is entirely voluntary. If you prefer that your profile not be used in this process, you can opt out at any time. Opting out means your profile will be excluded from automated matching and will not be surfaced for additional roles through this system. Your current application remains active and will not be affected in any way.
Please note that we are currently not accepting applications from third party application services.

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About Rivian

Sourced by ZipRecruiter

Rivian is a pioneering automotive industry player headquartered in Irvine, California. Established in 2009, the company has made notable advancements in developing sustainable transportation solutions. It is widely recognized for its electric adventure vehicles: the R1T pickup and the R1S SUV. Rivian is dedicated to creating a positive shift in societal mobility and emphasizes sustainability, innovation, and adventure as part of its core values. Their mission is to keep the world adventurous forever - a testament to their commitment in transitioning the world to sustainable transportation. Rivian's achievements are numerous, with one of the most notable being securing a significant multi-billion dollar investment from Amazon for the production of electric delivery vans.

Industry

Automobile dealers

Company size

10,000+ Employees

Headquarters location

Irvine, CA, US

Year founded

2009