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Llm Engineer Jobs in California (NOW HIRING)

Ironflow AI

AI/LLM Integration Engineer

San Diego, CA

$110K - $148K/yr

As our AI/LLM engineer, you won't just write prompts -- you'll define how the system thinks. You'll architect the orchestration layer that enables streaming chat, multi-agent coordination, and ...

LiteLLM AI Gateway

AI Engineer

San Francisco, CA · On-site

$200K - $250K/yr

  • Medical

  • Dental

  • Vision

Python, LLM APIs, FastAPI As the Backend LLM Engineer, you'll be responsible for ensuring LiteLLM unifies the format for calling LLM APIs in the broader OpenAI + Anthropic spec. This involves writing ...

Hippocratic AI

LLM Inference Engineer

Menlo Park, CA · On-site

About the Role We're seeking an experienced LLM Inference Engineer to optimize our large language model (LLM) serving infrastructure. The ideal candidate has: * Extensive hands-on experience with ...

Whatnot

LLM Platform Engineer

San Francisco, CA · On-site

$245K - $345K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable ... Create robust and scalable LLM evaluation frameworks to measure model performance, guide iteration ...

Whatnot

LLM Platform Engineer

San Francisco, CA · On-site

$245K - $345K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable ... Create robust and scalable LLM evaluation frameworks to measure model performance, guide iteration ...

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Llm Engineer information

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How much do llm engineer jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for llm engineer in California is $52.93, according to ZipRecruiter salary data. Most workers in this role earn between $42.69 and $61.44 per hour, depending on experience, location, and employer.

What does an LLM engineer do?

An LLM Engineer designs, develops, and optimizes applications that leverage large language models (LLMs). They fine-tune models, integrate them into products, and improve performance through prompt engineering and model customization. This role requires expertise in machine learning, natural language processing (NLP), and software development. LLM Engineers work closely with data scientists and developers to create AI-driven solutions for various applications such as chatbots, content generation, and code assistance.

What are the key skills and qualifications needed to thrive as an LLM engineer?

To thrive as an LLM Engineer, you need strong expertise in machine learning, natural language processing, and proficiency with Python, along with a solid understanding of transformer-based models and deep learning frameworks like PyTorch or TensorFlow. Familiarity with cloud platforms, version control systems (e.g., Git), and tools such as Hugging Face Transformers is typically required, and certifications in AI or data science can be advantageous. Excellent problem-solving, collaboration, and communication skills help you work effectively with interdisciplinary teams and present complex findings clearly. These skills enable you to develop, fine-tune, and deploy large language models efficiently in real-world applications.

How much do Llm engineers make?

Llm engineers typically earn between $100,000 and $180,000 annually, depending on experience, location, and company size. Senior roles or those with specialized skills in machine learning and natural language processing can command higher salaries, often exceeding $200,000 with bonuses and stock options.

What are the most commonly searched types of Llm Engineer jobs in California?

The most popular types of Llm Engineer jobs in California are:

What are popular job titles related to Llm Engineer jobs in California?

For Llm Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Llm Engineer jobs in California look for?

The top searched job categories for Llm Engineer jobs in California are:

What cities in California are hiring for Llm Engineer jobs?

Cities in California with the most Llm Engineer job openings:

Llm Engineer jobs near you
Infographic showing various Llm Engineer job openings in California as of August 2026, with employment types broken down into 81% Full Time, 13% Part Time, 2% Temporary, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $110,091 per year, or $52.9 per hour.

Junior LLM Engineer (Volunteer)

Health4TheWorld

Palo Alto, CA • On-site

Other

Re-posted 6 days ago

Job description

This is currently a volunteer position. Contributors will gain hands-on experience building real-world AI systems for public health impact.

About the Role

This is an unpaid volunteer opportunity for early-career engineers interested in gaining hands-on experience building LLM-powered applications for social impact in healthcare and public health.

Commitment

  • 3–6 hours per week
  • Remote
  • Flexible schedule

Qualifications

  • 1–3 years software engineering experience (or strong portfolio)
  • 6–12 months experience working with LLM APIs or relevant projects
  • Strong Python skills
  • Familiarity with prompt engineering and basic RAG preferred

Responsibilities

  • Assist in chatbot development
  • Support prompt engineering and testing
  • Help build and test RAG pipelines
  • Contribute to documentation
  • Collaborate with senior engineers

Transparency

This is currently a volunteer position. Contributors will gain hands-on experience building real-world AI systems for public health impact.

Apply