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Fastapi Developer Jobs in Anaheim, CA (NOW HIRING)

Circadia Health

Senior Software Engineer

Los Angeles, CA

$132K - $174K/yr

Design, develop, and maintain RESTful APIs using Python (FastAPI) to support healthcare applications. * Collaborate with frontend and mobile developers to integrate APIs effectively. * Ensure APIs ...

Circadia Health

Senior Software Engineer

Los Angeles, CA · On-site

$132K - $174K/yr

Design, develop, and maintain RESTful APIs using Python (FastAPI) to support healthcare applications. * Collaborate with frontend and mobile developers to integrate APIs effectively. * Ensure APIs ...

SpaceX

Software Engineer, Simulation

Hawthorne, CA · On-site

They are seeking a Software Engineer for their NDE & Materials Software team to develop and enhance ... FastAPI. • Front-end experience in React or similar JavaScript UI frameworks. • Database ...

SpaceX

Software Engineer, Simulation

Hawthorne, CA · On-site

They are seeking a Software Engineer specializing in simulation to enhance their multiphysics ... FastAPI. • Front-end experience in React or similar JavaScript UI frameworks. • Database ...

Staffingine LLC

AI Architect

Torrance, CA · On-site

$65.75 - $86.75/hr

Implement structured output validation and schema enforcement using Pydantic FastAPI and JSON ... Programming Architecture Python 310 Async design modul ardistributed architecture microservices

SpaceX

Software Engineer, Simulation

Hawthorne, CA · On-site

They are seeking a Software Engineer specializing in simulation to enhance their multiphysics ... FastAPI. • Front-end experience in React or similar JavaScript UI frameworks. • Database ...

SpaceX

Software Engineer, Simulation

Hawthorne, CA · On-site

As a software engineer on the NDE & Materials Software team, you will develop and advance the in ... FastAPI. • Front-end experience in React or similar JavaScript UI frameworks. • Database ...

Yum!

Sr Machine Learning Engineer

Irvine, CA · On-site

$112K - $154K/yr

We are seeking a hands-on Senior Machine Learning Engineer to support and enhance machine learning ... Familiarity with MLflow, Hydra/OmegaConf, FastAPI, or similar ML platform tooling. * Experience ...

Yum

Sr Machine Learning Engineer

Irvine, CA · On-site

$112K - $154K/yr

We are seeking a hands-on Senior Machine Learning Engineer to support and enhance machine learning ... Familiarity with MLflow, Hydra/OmegaConf, FastAPI, or similar ML platform tooling. * Experience ...

Commure

Staff Backend Engineer

Los Angeles, CA · On-site

$200K - $250K/yr

Work across the entire technology stack, including but not limited to Python, Go, FastAPI, Flask ... Strong Backend Programming Skills (We use Python and Go) * General Understanding of Containers and ...

Emergence

Software Engineer - Full Stack

Irvine, CA · On-site

$120K - $140K/yr

Experience with FastAPI, asyncio, or event-driven architectures * Exposure to Docker, Kubernetes ... Learn from senior engineers in a high-growth space. You'll receive hands-on mentorship from ...

Emergence AI

Software Engineer - Full Stack

Irvine, CA · On-site

$120K - $140K/yr

Experience with FastAPI, asyncio, or event-driven architectures * Exposure to Docker, Kubernetes ... Learn from senior engineers in a high-growth space. You'll receive hands-on mentorship from ...

Yum! Brands

Sr Machine Learning Engineer

Irvine, CA · On-site

$112K - $154K/yr

Senior Machine Learning Engineer We are seeking a hands-on Senior Machine Learning Engineer to ... Familiarity with MLflow, Hydra/OmegaConf, FastAPI, or similar ML platform tooling. * Experience ...

Cotality

Principal Software Engineer (Python)

Irvine, CA · On-site +1

$144K - $194K/yr

Expert Python/FastAPI Developer: Proven experience in designing, scaling, and maintaining existing production web services in an asynchronous Python environment. * Semantic & Graph Expertise: Deep ...

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Fastapi Developer information

See Anaheim, CA salary details

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How much do fastapi developer jobs pay per hour?

As of Jun 22, 2026, the average hourly pay for fastapi developer in Anaheim, CA is $55.32, according to ZipRecruiter salary data. Most workers in this role earn between $42.26 and $67.69 per hour, depending on experience, location, and employer.

What are some common challenges FastAPI Developers face when integrating third-party services or APIs?

FastAPI Developers often encounter challenges when integrating third-party services, such as handling authentication protocols (like OAuth2), ensuring compatibility between JSON schemas, and managing asynchronous calls to avoid performance bottlenecks. It’s also common to troubleshoot and adapt to inconsistencies in external API documentation or rate limits. Collaborating closely with frontend teams and DevOps professionals helps streamline these integrations, ensuring robust, scalable API solutions.

What is the difference between Fastapi Developer vs Backend Developer?

AspectFastapi DeveloperBackend Developer
Required SkillsPython, Fastapi, REST APIs, async programmingMultiple languages (Python, Java, Node.js), REST/SOAP APIs, databases
Work EnvironmentWeb development, API-focused projects, microservicesBroader software development, server-side logic, database management
Industry UsageTech startups, SaaS, API-driven servicesEnterprise, e-commerce, finance, various industries

Fastapi Developers specialize in building high-performance APIs using Python and Fastapi, often within microservices architectures. Backend Developers have a broader scope, working with multiple languages and technologies to develop server-side applications across various industries. While Fastapi Developers focus on API efficiency, Backend Developers handle comprehensive backend systems.

What are the key skills and qualifications needed to thrive as a FastAPI Developer, and why are they important?

To thrive as a FastAPI Developer, you need strong proficiency in Python programming, RESTful API design, and experience with FastAPI, often supported by a background in computer science or related fields. Familiarity with tools like SQL/NoSQL databases, Docker, and cloud platforms, as well as knowledge of asynchronous programming and API documentation tools like Swagger, is typically required. Excellent problem-solving skills, attention to detail, and effective communication set outstanding FastAPI developers apart. These skills are crucial for building reliable, high-performance APIs that meet modern application demands and facilitate seamless team collaboration.

What is a FastAPI Developer?

A FastAPI Developer is a software engineer who specializes in building web applications and APIs using the FastAPI framework, which is a modern, fast (high-performance) web framework for Python. FastAPI Developers are responsible for designing, developing, and maintaining backend services and APIs that are efficient, robust, and scalable. They often work with databases, authentication, and deployment processes, and ensure that the API endpoints adhere to best practices for security and performance. Their work is crucial for enabling smooth communication between front-end applications and backend systems.
What job categories do people searching Fastapi Developer jobs in Anaheim, CA look for? The top searched job categories for Fastapi Developer jobs in Anaheim, CA are:
What cities near Anaheim, CA are hiring for Fastapi Developer jobs? Cities near Anaheim, CA with the most Fastapi Developer job openings:
Fastapi Developer jobs near you

Senior Software Engineer

Circadia Health

Los Angeles, CA

$132K - $174K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 6 days ago

Job description


About Circadia Health


Circadia Health is a growth-stage healthcare AI company on a mission to prevent avoidable hospitalizations and transform senior-care operations. Our Circadia Intelligence Platform combines:

  1. Contactless sensing that monitors respiration and motion with medical-grade accuracy

  2. Native predictive models that detect 85% of preventable adverse events several days in advance

  3. Enterprise integrations that operationalize predictions directly inside EHR, care-coordination, billing, and compliance workflows


Today, our technology touches 40,000+ post-acute patients daily across skilled-nursing, home-health, and home-care networks. We are backed by leading healthcare and AI investors and headquartered in El Segundo, CA.

The Role
As a Full-Stack Software Engineer, you will play a critical role in designing, developing, and maintaining both backend APIs and frontend applications that support sensitive healthcare platforms. You will be proficient in Python for backend development and have experience with modern frontend frameworks such as ReactJS, Vue.js, or Angular. Your expertise in Test-Driven Development (TDD), security best practices, and comprehensive documentation will ensure the reliability, scalability, and security of our mission-critical software. Your work will directly impact patient care and enhance the efficiency of clinical staff by contributing to a platform that serves 30k+ patients daily through our Circadia Contactless Monitor (IoT devices)-a number expected to scale beyond 100k+ in the next 2 to 3 years.
What You'll Do
Frontend Development:
  • Build, develop, and maintain responsive, interactive user interfaces using modern JavaScript frameworks (React, Vue.js, Angular).
  • Implement state management and develop reusable UI components for seamless integration with backend services.
  • Optimize frontend performance using techniques like lazy loading, code splitting, and caching.
  • Ensure cross-browser compatibility and adherence to WCAG guidelines for accessibility.
 
Backend/API Development:
  • Design, develop, and maintain RESTful APIs using Python (FastAPI) to support healthcare applications.
  • Collaborate with frontend and mobile developers to integrate APIs effectively.
  • Ensure APIs are secure, scalable, and performant to handle increasing loads.
 
AWS Expertise:
  • Build scalable applications using AWS services (Cognito, Pinpoint, IoT, MSK).
  • Expand and manage services under AWS modules while implementing robust authentication protocols.
  • Navigate Docker deployments to scale containerized applications efficiently.
 
Test-Driven Development (TDD):
  • Write unit tests and integration tests using PyTest to ensure code quality and reliability.
  • Conduct code reviews and implement best practices for high coding standards.
 
Data Management:
  • Manage patient data efficiently using databases (MySQL, PostgreSQL, MongoDB).
  • Optimize database queries for performance and scalability while ensuring data integrity.
 
Security and Compliance:
  • Implement and maintain security measures to protect sensitive healthcare data.
  • Ensure compliance with healthcare regulations, including HIPAA.
  • Regularly update and patch API endpoints to address vulnerabilities.
 
  • Documentation and Collaboration:
  • Create and maintain comprehensive documentation for APIs, workflows, and best practices.
  • Maintain detailed change logs, version histories, and onboarding guides.
Must-Have Qualifications
 
  • Advanced knowledge of Python and related frameworks (FastAPI, NumPy, Pandas, Pydantic) including multithreading and parallel design principles.
  • Understanding of AWS, including knowledge of Cognito, Pinpoint, IoT, MSK and other services.
  • Expertise in Javascript and frameworks such as ReactJS
  • Deep understanding of user-centered design principles, design thinking methodologies, and usability best practices.
  • Knowledge of HTTP(S) as a protocol
  • Proficient in using and maintaining Docker containers.
  • Strong understanding of RESTful API design principles and best practices.
  • Experience with TDD and testing frameworks such as PyTest.
Nice-to-Haves
  •  
  • Proficiency in C++, TypeScript
  • Experience with Qt preferred but not required
  • Experience with Google APIs is preferred.
  • Design Acumen: Deep understanding of user-centered design principles, visual hierarchy, and interaction design fundamentals. Proficiency in translating complex healthcare workflows into intuitive, user-friendly interfaces.
  • Detail-Oriented: Responsible for developing APIs that handle sensitive healthcare data. Ability to maintain high levels of accuracy and attention to detail in all tasks.
  • Communication and Trust: Exceptional communication skills with the ability to collaborate effectively across teams. Ability to maintain the highest levels of confidentiality on a consistent basis.
  • Organization and Efficiency: Capable of managing multiple projects and timelines simultaneously. Highly organized, with a keen eye for detail in all tasks and projects.
  • Growth Mindset: Ability to learn from mistakes, reflect on them, and not repeat them. Curiosity and resilience in the face of setbacks, constantly seeking to improve and grow.
 
Technologies and Tools:
  • Programming Languages: Python, Javascript,  C++ (Optional)
  • Frameworks: FastAPI, NumPy, Pandas, Pydantic, ReactJS
  • Databases: MySQL, PostgreSQL, MongoDB
  • Testing: PyTest
  • Version Control: Git
  • CI/CD: Jenkins, CircleCI
  • Documentation: Confluence, Markdown
  • Monitoring: Prometheus, Grafana
$150,000 - $225,000 a year

  1. Base Salary: $150k - $225k + meaningful stock options

  2. Benefits: 100% company-paid medical, dental, vision; 401(k); generous PTO

  3. Workspace: El Segundo HQ with rooftop views, espresso bar, and weekly team lunches

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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