13 senior fastapi developer jobs at 8 companies in Menifee, CA
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Boston or Encinitas
$142k-$192k/yr OnsiteFull Time
5+ YOE5+ years experience building full-stack web applications; strong Python (Django/FastAPI), TypeScript/React, AWS, PostgreSQL, Docker, and CI/CD (Jenkins) experience; API design and mentoring skills; US citizenship or green card required.
Python, Django, FastAPI, TypeScript, React, PostgreSQL, AWS, Docker, Jenkins, Node/Express, Java/Spring
1mo
Save
Mark Applied
Hide
Senior Professional Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$129k-$165k/yr HybridFull Time
5+ YOEBachelor's or Master's in Computer Science/AI or related, 5+ years software engineering, expert Python/FastAPI, microservices, Snowflake/Databricks, cloud (GCP/AWS/Azure), Agile (Jira/Confluence), strong communication and mentoring skills.
Python, FastAPI, Snowflake, Databricks, GCP, AWS, Azure, Jira, Confluence, YAML
1w
Save
Mark Applied
Hide
Senior Software Engineer - AI, CoCounsel International
Eagan or Frisco or New York City or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$110k-$204k/yr HybridFull Time
4+ YOE4+ years backend engineering experience with Python, FastAPI, PostgreSQL, AWS; production agentic AI and LLM integration experience; strong debugging, architecture, and collaboration skills.
Python, FastAPI, PostgreSQL, AWS, OpenAI, Anthropic
1mo
Save
Mark Applied
Hide
Principal Engineer, CoCounsel
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
Bachelor's degree (or equivalent) in CS or CE, deep Python and distributed systems experience, hands-on AI/LLM and agent experience, FastAPI/PostgreSQL/AWS familiarity, identity/IAM (SAML, OIDC, OAuth 2.0) expertise, strong communication.
Python, FastAPI, PostgreSQL, AWS, SSO, SAML, OIDC, OAuth 2.0, RBAC, ABAC, Anthropic, OpenAI, LLMs, MCP servers, vector databases, embeddings, semantic search
2mo
Save
Mark Applied
Hide
Senior Machine Learning Engineer
Costa Mesa, California, United States
OnsiteFull Time
Hands-on experience training and evaluating deep models for segmentation and detection (PyTorch); understanding vision transformers and 2D/3D data; strong Python skills.
Python, PyTorch, torchvision, Detectron2, MMDetection, Hugging Face Transformers, FastAPI, Docker, AWS
1mo
Save
Mark Applied
Hide
Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
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
1mo
Save
Mark Applied
Hide
Staff Software Engineer – AI Platform
Eagan or Frisco or Brooklyn or Toronto or Ann Arbor or New York City or San Francisco or Los Angeles or Irvine or McLean or Washington
$127k-$273k/yr HybridFull Time
5+ YOE5+ years building scalable cloud applications, deep Python and FastAPI experience, PostgreSQL and AWS experience, familiarity with LLMs/AI systems, strong distributed-systems and architecture skills.
Python, FastAPI, PostgreSQL, AWS, Vercel, OpenAI, Anthropic
1mo
Save
Mark Applied
Hide
Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
10+ YOEMaster's or Bachelor's in CS/AI (required), 10+ years software engineering, expert Python/FastAPI, semantic/graph and RAG experience, cloud (GCP/AWS/Azure), Git/Unix, ADK, vector DBs, strong communication and leadership.
Git, Unix, Python, FastAPI, FastMCP, ADK, Vector Databases, GraphRAG, RAGAS, DeepEval, HyDE, GCP, AWS, Azure
1w
Save
Mark Applied
Hide
Senior AI Engineer
Costa Mesa, California, United States
$125k-$147k/yr RemoteFull Time
8+ YOE3+ Mgmt8+ years software experience with 3+ years leading technical teams; proven production LLM/AI system design; expertise across full-stack, cloud-native, and observability tooling.
TypeScript, Node.js, Python, Go, C#, Java, React, Next.js, Tailwind, FastAPI, .NET Core, Angular Core, Azure, AWS, Kubernetes, AKS, EKS, Terraform, Databricks, Mosaic AI Agent Framework, Unity Catalog, Delta Lake, GraphQL, gRPC, Azure DevOps, ArgoCD, Prometheus, OpenTelemetry, Grafana, New Relic, Datadog, Kafka, EventHub, SQL, NoSQL
6d
Save
Mark Applied
Hide
Staff AI Platform & Reliability Engineer
Santa Ana, California, United States
$172k-$220k/yr OnsiteFull Time
Senior Python/GCP engineer to design and operate AI generation services, provider integrations, billing/usage metering, tenant security and platform reliability.
Python 3.12, FastAPI, Pydantic, asyncio, Cloud Run, Pub/Sub, Cloud Tasks, GCS, Firestore, Cloud SQL/Postgres, SQLAlchemy, Alembic, Terraform, IAM/OIDC, Secret Manager, CI/CD, NestJS, TypeScript, Claude Code, Codex, Cursor
2w
Save
Mark Applied
Hide
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
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
1mo
Save
Mark Applied
Hide
10883 - Enterprise SAP Systems & AI Solutions Engineer
Irvine, California, United States
$103k-$159k/yr HybridFull Time
7+ YOE7+ years enterprise IT experience; functional SAP Finance/ERP knowledge; Python, AI, SQL, EMR/integration skills; strong analytical and communication abilities; bachelor's degree or equivalent.
SAP ERP, SuccessFactors, Python, Django, FastAPI, OpenAI, Anthropic Claude, Streamlit, Dash, React, SQL, RESTful APIs
1mo
Save
Mark Applied
Hide
Agentic AI Architect - Intelligence Engineering (West)
Denver or East Bay or Los Angeles or Orange County or Phoenix or Portland or Salt Lake City or San Diego or San Francisco or Seattle or Silicon Valley
$108k-$237k/yr HybridFull Time
5+ YOE5+ years software engineering experience with 2+ years on generative/agentic AI, multi-agent system design, RAG architectures, cloud AI platform deployment, Python proficiency, and strong communication skills.
Python, FastAPI, Flask, Lang Graph, Strands Agents SDK, OpenAI Agents SDK, Google ADK, LangSmith, Model Context Protocol (MCP), AWS Bedrock, Azure AI Foundry, OpenAI Service, GCP Vertex AI, Gemini, Databricks, Claude Code, Cursor, Kiro, RAGAS, DeepEval