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216 llm engineer jobs at 121 companies in Laguna Niguel, CA

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LLM Post-Training Engineer Graduate (Research & Product) - 2027 Start
San Jose or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
$128k-$317k/yr OnsiteFull Time
TikTok
TikTok: Global short-form video hosting and social media platform.
Completing or recently completed a master's in computer science, machine learning, or related field; strong Python, PyTorch or JAX skills; Transformer and LLM training knowledge.
Python, PyTorch, JAX, DeepSpeed, Megatron-LM
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2mo
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AI Tooling Engineer
San Francisco or Seattle or Los Angeles or New York City or United Kingdom or Ireland or Poland or Germany or Australia or North America or Europe
$200k-$260k/yr RemoteFull Time
Whatnot
Whatnot: Social marketplace for buying and selling via live streams
4+ YOE4+ years industry experience, 1+ years applied AI/LLM product experience; strong fluency with prompt engineering, RAG, MCP, agents, evals; systems-integration experience with APIs/webhooks; strong communication and mentorship skills.
Anthropic, OpenAI, Google, APIs, webhooks, LLM, RAG, MCP, evals
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1w
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Sr. Vehicle Modelling Engineer, Applied AI Systems
Irvine or Palo Alto
$135k-$186k/yr HybridFull Time
Rivian and Volkswagen Group Technologies
Rivian and Volkswagen Group Technologies: A joint venture developing software-defined vehicle technology and AI-enabled systems for electric vehicles.
BS/MS in engineering or equivalent; strong Python; experience building LLM applications, RAG/semantic search, and AI tooling; systems engineering and physical simulation familiarity; GitLab CI/CD experience.
Python, OpenModelica, Julia, Simulink, FMI, FMU, LangChain, LlamaIndex, LLM, GitLab, GitLab CI/CD, RequiTest, DBC, ARXML
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2w
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Senior Principal Engineer – Applied ML/AI Algorithms R&D for Advanced Patient Monitoring
Irvine, California, United States
$130k-$207k/yr OnsiteFull Time
BD
BDNYSE: BDX: Manufactures medical devices, surgical instruments, and pharmacy automation systems.
4+ YOEPhD+4 or MS+7 or BS+8 in AI/ML/data science/software engineering; experience productionizing ML/LLM models, MLOps, mentoring engineers, building scalable experimentation and working in regulated healthcare environments.
MLOps, LLM, LMM, ML, DL, AI, feature store
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2w
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Application Software Engineer, Applied AI
Vandenberg or Bastrop or Cape Canaveral or Hawthorne or McGregor or Redmond or Brownsville
$125k-$195k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
1+ YOEBachelor's in CS/engineering or 2+ years software experience; 1+ years full-stack; hands-on experience delivering production AI/LLM systems; strong software engineering foundations.
Python, C#.NET, Go, Scala, Java, Docker, Kubernetes, Kafka, Angular, React, PostgreSQL, SQL Server
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3w
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Principal Engineer
Eagan or Frisco or New York City or Toronto or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$159k-$295k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
Expertise in identity and access management, distributed systems, and AI/LLM integration; deep Python experience; cloud (AWS) and relational DB (PostgreSQL); strong communication and architecture ownership skills.
Python, FastAPI, PostgreSQL, AWS, Okta, Auth0, Entra ID/Azure AD, AWS Cognito, Anthropic, OpenAI, vector databases, SAML, OIDC, OAuth 2.0, RBAC/ABAC, MCP, LLMs
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2mo
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AI Evaluation Engineer
Bucharest or Boulder or Boston or Chicago or Glendora or Richmond or London or Auckland
lei16k-lei19k/mo HybridFull Time
Yes Energy
Yes Energy: Provides real-time electric power market data and trading analytics.
5+ YOEBachelor's in CS/Data/Math, 5+ years software engineering with focus on testing/evaluation or AI/ML tooling, strong Python, experience building evaluation pipelines and LLM eval concepts, familiarity with RAG and production data pipelines.
RAGAS, LangSmith, PromptFlow, Snowflake, Python, RAG
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2mo
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Senior Platform Engineer, AI
Denver or Long Beach
$170k-$275k/yr HybridFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
5+ YOE5+ years software/cloud/DevOps experience; production development in Python/TypeScript/Java; experience with LLM APIs, prompt engineering, RAG, agent frameworks, API integrations; ability to obtain Top-Secret clearance and U.S. citizenship or equivalent status.
Python, TypeScript, Java, CrewAI, Pydantic AI, API, webhooks, MCP, Retrieval-Augmented Generation (RAG), AWS, Azure, GCP, AWS GovCloud, Azure Government, FedRAMP, NIST 800-53, IL4, IL5
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2w
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Senior / Staff Application Security Engineer
Boston or New York City or Los Angeles or San Francisco
$230k-$330k/yr OnsiteFull Time
Suno
Suno: AI platform for creating full songs from text prompts.
6+ YOE6+ years in security engineering with hands-on application security, secure SDLC tooling, AWS experience, ability to write production code and threat-model AI/LLM surfaces.
AWS, SAST, DAST
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1mo
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Customer Success Automation Engineer
San Francisco or Culver City or Dallas or Los Angeles
HybridFull Time
Altruist
Altruist: Provides a digital custodian and portfolio management platform for advisors.
5+ YOE5+ years software engineering with production experience; strong product instincts; experience with LLMs, agent frameworks, Python, APIs, webhooks, Salesforce; customer-focused and data-driven.
Python, LLMs, OpenAI, Anthropic, Gemini, LangChain, LlamaIndex, CrewAI, RAG architectures, APIs, webhooks, Salesforce, Service Cloud, Experience Cloud, Apex, Flow, Salesforce APIs
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3w
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Senior AI Workflow & Systems Engineer
Los Angeles or United States
$70k-$160k/yr RemoteFull Time
TubeScience
TubeScience: Creates performance-optimized video advertisements for social media platforms.
4+ YOE4+ years engineering/DevOps experience with hands-on AI/ML, production deployments on cloud platforms, LLMs and orchestration tools, REST API integration, and strong Python or JavaScript skills.
Vercel, AWS, GCP, n8n, Make, Zapier, LangChain, Python, JavaScript, Node.js, REST APIs, vector databases
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1mo
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Software Modernization Engineer
El Segundo, California, United States
$129k-$194k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
6+ YOEBachelor's in CS/CE/STEM, 6+ years software engineering/architecture experience, ability to obtain U.S. government security clearance (U.S. citizenship required), experience modernizing legacy systems, cloud/microservices, DevOps, and stakeholder interfacing.
containerization, microservices, real-time operating systems, visualization frameworks, Linux, AWS, Azure, Jenkins, CI/CD, REST APIs, LLM, RAG, NLP
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3w
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Luminate: GTM Engineer
Los Angeles, California, United States
$130k-$150k/yr HybridFull Time
Luminate
Luminate: Providing data insights for the global entertainment industry.
Hands-on experience building AI-powered GTM workflows, proficiency with Python and SQL, API integrations, LLMs and agent design, and fluency integrating Salesforce/Pardot/Clay/Salesloft; US work authorization required.
Python, SQL, Salesforce, Pardot, Clay, Salesloft, LLMs, Slack
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2mo
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Senior Systems Engineer, Commercial Intelligence and Analytics
Los Angeles or New York City or San Francisco
$103k-$189k/yr OnsiteFull Time
The Trade Desk
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
5+ YOE5+ years in analytics/data/software engineering; strong SQL and Python; experience building production data pipelines, CI/CD, and version-controlled workflows; familiarity with Snowflake, Tableau, Git/GitLab, Docker, LLM APIs; strong communication.
Python, SQL, Snowflake, Tableau, Git, GitLab, LLM APIs, Docker, Jira, Confluence, Salesforce, Databricks
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2mo
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Data Engineer
New York or Los Angeles or San Francisco
$140k-$175k/yr HybridFull Time
Regard
Regard: A that builds AI-powered software to improve clinical documentation and advance patient care.
3+ YOEBS or equivalent, 3+ years data engineering experience, Python and SQL proficiency, experience with PySpark and distributed data processing, AWS experience preferred, LLM-assisted development familiarity, and willingness to participate in on-call support.
S3, Apache Iceberg, EMR, PySpark, Dagster, Kubernetes, ClickHouse, PostgreSQL, FastAPI, Metabase, Python, SQL, AWS, AWS Athena, EHR, OMOP CDM, HIPAA, LLM
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1mo
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Forward Deployed Engineer (FDE) - Public Sector, Nonprofit & Education
McLean or Maryland or Chicago or West Virginia or Virginia or Irvine or Indianapolis or San Francisco or New York City or Dallas or Denver or Atlanta or Austin
$89k-$288k/yr HybridFull Time
Salesforce
SalesforceNYSE: CRM: Sells cloud-based customer relationship management and business software solutions.
3+ YOE3+ years software engineering or technical delivery experience, customer-facing delivery experience, production systems experience, proficiency with Python/JavaScript/TypeScript/Java/Apex, hands-on LLM and data integration experience.
Cursor, Claude, Vibes, Agentforce, Python, JavaScript, TypeScript, Java, Apex, LangChain, LlamaIndex, Snowflake, Databricks, BigQuery
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2w
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Sr. AI/ML Engineer - Remote or Hybrid in Eden Prairie, MN or Irvine, CA
Eden Prairie or Irvine
$120k-$215k/yr HybridFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
5+ YOE5+ years engineering experience, strong Python skills, practical experience with LLMs, RAG, embeddings, vector search, prompt engineering, model APIs, data pipelines, and responsible AI practices.
Python, LLMs, RAG, embeddings, vector search
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2mo
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Sr. Data Engineer
New York or Maryland or Chicago or Detroit or Los Angeles or United States
$94k-$153k/yr HybridFull Time
Dentsu
DentsuTokyo Stock Exchange: 4324: Providing global advertising, digital marketing, and media communications services.
4+ YOE4+ years in data/software engineering; strong Python and SQL; deep Snowflake experience (Streams and Tasks, Snowpark preferred); experience with identity matching, PII handling, Git, CI/CD, and AI/LLM-assisted data workflows.
Snowflake, Streams and Tasks, Snowpark, Python, SQL, Git, CI/CD, AWS, Azure, GCP, Unix, Bash, MCP, LLM
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1mo
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Forward Deployed Engineer, Routines
Los Angeles, California, United States
RemoteFull Time
Athena
Athena: Provides premium managed executive assistant services for global leaders.
Technical/product background with hands-on experience building AI automations, experience with integrations/APIs and LLM agent systems, able to demo personal automations; bachelor’s degree or equivalent preferred.
Claude Code, Codex, Cowork
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2mo
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Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
Cotality
Cotality: Provider of property intelligence, data, and analytics solutions.
10+ YOE10+ years professional software engineering experience; expert Python/FastAPI; semantic, graph, and RAG/Vector retrieval experience; cloud (GCP/AWS/Azure); leadership, TDD, and AI/LLM/SLM familiarity.
Git, Unix, Python, FastAPI, FastMCP, ADK, LLM, SLM, GraphRAG, Vector Databases, RAGAS, DeepEval, GCP, AWS, Azure
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