24 fastapi developer jobs at 16 companies in Fallbrook, CA

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
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
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
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
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
4w
Save
Mark Applied
Hide
Senior Software Engineer
Boston or Encinitas
$142k-$192k/yr OnsiteFull Time
Paperless Parts
Paperless Parts: Cloud-based quoting software for custom part manufacturers.
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
Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
Cotality
Cotality: Provides property data, analytics, and workflow intelligence solutions.
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
1mo
Save
Mark Applied
Hide
Full Stack Engineer
Irvine, California, United States
$125k-$140k/yr OnsiteFull Time
ICEYE
ICEYE: Operates synthetic aperture radar (SAR) satellite constellations.
2+ YOEBachelor's degree in CS/IT, 2+ years full‑stack development with production AWS deployments; proficiency in Go, FastAPI, React, and experience with RESTful APIs and cloud-native patterns; eligible for Top Secret clearance.
Go, Python, React, FastAPI, AWS, Kubernetes, AWS CDK, Terraform, JavaScript, TypeScript, IAM, API Gateway, Lambda, DynamoDB
2mo
Save
Mark Applied
Hide
GenAI Python Systems Engineer –Senior Manager
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$124k-$280k/yr HybridFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
8+ YOESenior Manager level with 8+ years of experience; proficient in Python, SQL, FastAPI; cloud certifications a plus; willing to travel up to 80%; Bachelor's degree required.
Python, SQL, FastAPI, Cloud Platforms, LLM techniques, Data Warehousing, Data Lakes, IAM
4w
Save
Mark Applied
Hide
Software Engineer - Business Analytics
San Diego or Boston
$100k-$125k/yr HybridFull Time
HavocAI
HavocAI: Develops autonomous surface vessels and collaborative maritime autonomy software.
1+ YOEBachelor's or equivalent, 1+ years software/analytics engineering experience, strong programming fundamentals (Python/JavaScript/TypeScript/SQL), BI/dashboard and automation experience, U.S. citizenship and ability to obtain security clearance.
Python, JavaScript, TypeScript, SQL, React, Next.js, Node.js, Flask, FastAPI, Streamlit, Looker, Power BI, Tableau, Metabase, Retool, Cursor, Claude Code, GitHub Copilot, Rippling, Ashby, Salesforce, HubSpot, Jira, Confluence, Rho, Navan, AWS, GCP, Azure
4d
Save
Mark Applied
Hide
Mid-Level AI Product / Creative-Tools Engineer
Santa Ana, California, United States
$120k-$155k/yr OnsiteFull Time
eJam
eJam: Builds and scales direct-to-consumer e-commerce brands.
2–4 years production software engineering experience; strong React and TypeScript; modern React toolchain (Next.js or Vite); Node.js backend and relational DB knowledge; automated testing; fluency with agentic coding tools.
React, TypeScript, Next.js, Vite, Node.js, NestJS, Python, FastAPI, Claude Code, Codex, Cursor, Playwright, TanStack Query, Mantine, SSE, WebSockets
1w
Save
Mark Applied
Hide
Research Software Engineer I - Center for AI and Research Computing (AIRC)
La Jolla, California, United States
$33-$38/hr OnsiteFull Time
Salk Institute
Salk Institute: Conducts biological research to solve global health challenges.
0+ YOEEarly-career software engineer with full-stack ability in Python and another language, Git experience, Linux familiarity, demonstrated coding portfolio, and interest in scientific collaboration and HPC.
Python, Claude Code, Git, SLURM, Claude API, Docker, Kubernetes, AWS, GCP, React, Svelte, Vue, FastAPI, Django, GitHub, Linux/Unix, CI/CD
1w
Save
Mark Applied
Hide
Senior AI Engineer
Costa Mesa, California, United States
$125k-$147k/yr RemoteFull Time
Cushman & Wakefield
Cushman & WakefieldNYSE: CWK: Global commercial real estate and property services firm.
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
1mo
Save
Mark Applied
Hide
Sr Machine Learning Engineer
Irvine or Plano or Louisville
$130k-$162k/yr HybridFull Time
KFC Pan Europe
KFC Pan EuropeNYSE: YUM: Quick-service restaurant chain specializing in fried chicken products.
3+ YOEBachelor's degree, 3+ years ML engineering/MLOps or software engineering experience, strong Python (pandas, PyTorch, scikit-learn), AWS (SageMaker, Step Functions, Lambda, S3, IAM, ECR), Airflow/Glue, Docker, CI/CD, SQL; strong troubleshooting and collaboration skills.
Python, pandas, PyTorch, scikit-learn, boto3, SQL, SageMaker, Step Functions, Lambda, S3, IAM, ECR, Airflow, Glue, Snowflake, Redshift, Athena, Docker, GitLab CI/CD, MLflow, Hydra/OmegaConf, FastAPI, PyMC, ArviZ, Terraform, Terragrunt, CloudFormation, CloudWatch, DataDog, GitLab
1mo
Save
Mark Applied
Hide
Sr Machine Learning Engineer
Irvine, California, United States
$130k-$162k/yr HybridFull Time
Yum! Brands
Yum! BrandsNYSE: YUM: Global operator of quick-service restaurant brands.
3+ YOEBachelor's/Master's in CS/Engineering/Data Science, 3+ years ML engineering/MLOps experience, strong Python (pandas, PyTorch, scikit-learn, boto3) and SQL skills, AWS SageMaker and orchestration (Step Functions, Lambda, Airflow) experience, Docker and CI/CD experience.
Python, pandas, PyTorch, scikit-learn, boto3, SQL, SageMaker, Step Functions, Lambda, S3, IAM, ECR, Airflow (MWAA), Glue, Snowflake, Redshift, Athena, Docker, GitLab CI/CD, MLflow, Hydra/OmegaConf, FastAPI, PyMC, ArviZ, Terraform, Terragrunt, CloudFormation, CloudWatch, DataDog
2mo
Save
Mark Applied
Hide
Trading, Investment & Optimization - QuantAI Engineer (Hybrid)
Seattle or Chicago or Los Angeles or Atlanta or Houston or Arlington or San Francisco or Morristown or Boston or Dallas or San Diego or New York
HybridFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
3+ YOEBachelor's in CS/engineering or related field; 3+ years in client-facing tech delivery; strong backend/API/full-stack or ML workflows; experience with enterprise hardening and deployment.
Electron, FastAPI, Docker, cloud services, evaluation tooling, agent orchestration frameworks, MCP-style integrations, Python, TypeScript, JavaScript
2mo
Save
Mark Applied
Hide
Senior Machine Learning Engineer
Costa Mesa, California, United States
OnsiteFull Time
Kinetic Automation
Kinetic Automation: Automates digital vehicle maintenance and ADAS calibration using robotics.
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
4d
Save
Mark Applied
Hide
AI Engineering Manager, Agentic Foundation
Bellevue or South San Francisco or San Diego
$215k-$228k/yr HybridFull Time
ZS
ZS: Global management consulting and technology firm for healthcare and life sciences.
Engineering management experience; deep software engineering and system design skills; experience with distributed systems, microservices, APIs, data/storage and GenAI/LLM systems; strong backend skills (Python, FastAPI/Flask); client-facing communication.
Python, FastAPI, Flask, CI/CD
1mo
Save
Mark Applied
Hide
10883 - Enterprise SAP Systems & AI Solutions Engineer
Irvine, California, United States
$103k-$159k/yr HybridFull Time
Hyundai AutoEver America
Hyundai AutoEver AmericaKorea Exchange: 307950: Provides automotive software and IT services for mobility systems.
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
Slalom
Slalom: Provides business and technology consulting and software engineering services.
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