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Junior Fastapi Developer Jobs in California (NOW HIRING)

AI Architect/Developer

Santa Clara, CA · Hybrid

$82K - $193K/yr

Act as a lead developer to mentor junior staff and ensure best practices in code quality and model ... Strong background in RESTful API development (FastAPI, Flask) and data pipeline architecture ...

Act as a lead developer to mentor junior staff and ensure best practices in code quality and model ... Strong background in RESTful API development (FastAPI, Flask) and data pipeline architecture ...

Act as a lead developer to mentor junior staff and ensure best practices in code quality and model ... Strong background in RESTful API development (FastAPI, Flask) and data pipeline architecture ...

Senior Software Engineer, Data

San Francisco, CA · On-site

$144K - $190K/yr

Be a technical resource and mentor for junior engineers, and partner directly with leadership on ... Familiarity with FastAPI, Django, SQLAlchemy, Celery, or Infrastructure-as-Code (Terraform, CDK) is ...

Senior Software Engineer, Data

Los Angeles, CA · On-site

$132K - $174K/yr

Be a technical resource and mentor for junior engineers, and partner directly with leadership on ... Familiarity with FastAPI, Django, SQLAlchemy, Celery, or Infrastructure-as-Code (Terraform, CDK) is ...

... using FastAPI, Flask, Docker, or similar tools. * MLOps basics Must Have -- model versioning ... We run a structured onboarding programme for junior hires including a dedicated mentor, a 90-day ...

Principal Software Engineer (Python)

Irvine, CA · On-site

$144K - $194K/yr

Mentor Senior & Junior Engineers: Act as a technical mentor and coach, sharing expertise in Python ... Expert Python/FastAPI Developer: Proven experience in designing, scaling, and maintaining existing ...

Principal Software Engineer (Python)

Irvine, CA · On-site +1

$144K - $194K/yr

Mentor Senior & Junior Engineers: Act as a technical mentor and coach, sharing expertise in Python ... Expert Python/FastAPI Developer: Proven experience in designing, scaling, and maintaining existing ...

Showing results 21-40

Junior Fastapi Developer information

What is a Junior FastAPI Developer?

Junior FastAPI Developers are entry-level software engineers who specialize in building web applications and APIs using FastAPI, a modern Python web framework. They are responsible for writing, testing, and maintaining backend code, often under the guidance of more experienced developers. Their tasks typically include developing RESTful APIs, integrating databases, and ensuring application performance and security. Junior FastAPI Developers usually have a basic understanding of Python, web technologies, and REST principles. They play an important role in supporting projects, learning best practices, and growing their technical skills.

What are the key skills and qualifications needed to thrive as a Junior FastAPI Developer?

To thrive as a Junior FastAPI Developer, you need foundational knowledge of Python programming, RESTful API concepts, and experience working with FastAPI frameworks, supported by a relevant degree or coding bootcamp. Familiarity with Git for version control, SQL or NoSQL databases, and containerization tools like Docker is typically expected. Strong problem-solving skills, eagerness to learn, and effective communication make candidates stand out in collaborative development environments. These competencies ensure efficient, high-quality API development and seamless teamwork in agile software projects.

What are some typical challenges a Junior FastAPI Developer may face when joining a new team?

As a Junior FastAPI Developer, you may encounter challenges such as adapting to established codebases, understanding the team's API design patterns, and ensuring your code aligns with both FastAPI best practices and your organization's standards. Collaborating closely with senior developers and participating in code reviews can help accelerate your learning process. Additionally, you may need to quickly familiarize yourself with related tools such as Docker, Git, and testing frameworks, as well as the team's workflow for deploying and maintaining APIs in production environments.

What is the difference between Junior Fastapi Developer vs Junior Python Developer?

AspectJunior Fastapi DeveloperJunior Python Developer
Required CredentialsBasic Python knowledge, familiarity with FastapiBasic Python knowledge, possibly some frameworks
Work EnvironmentWeb backend development, API creationGeneral software development, scripting
Employer & Industry UsageTech companies, startups, web servicesBroad industry, including data analysis, automation
Common Search & ComparisonYesYes

The main difference is that a Junior Fastapi Developer specializes in building APIs using Fastapi, while a Junior Python Developer has broader Python programming skills without specific focus on web APIs. Fastapi developers typically work in web backend environments, whereas Python developers may work across various domains.

What are the most commonly searched types of Fastapi Developer jobs in California?

The most popular types of Fastapi Developer jobs in California are:

What are popular job titles related to Junior Fastapi Developer jobs in California?

For Junior Fastapi Developer jobs in California, the most frequently searched job titles are:

What cities in California are hiring for Junior Fastapi Developer jobs?

Cities in California with the most Junior Fastapi Developer job openings:

Infographic showing various Junior Fastapi Developer job openings in California as of September 2026, with employment types broken down into 100% Full Time. Highlights an 66% In-person, and 34% Remote job distribution.

AI Architect/Developer

Santa Clara, CA • Hybrid

United Airlines
Aviation • 10K+ employees

$82K - $193K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 4 days ago


United Airlines rating

7.9

Company rating: 7.9 out of 10

Based on 343 frontline employees who took The Breakroom Quiz


Job description

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world's mostinnovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as theyprovide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days arethe same.

Location:

Long Beach, CA Hybrid 3 days a week

About the job you're considering

We are seeking a highly skilled AI Architect/Developer hybrid to bridge the gap between AI strategy and production-grade implementation. This individual will be responsible for designing scalable AI ecosystems, selecting appropriate model architectures, and directly contributing to the development of custom AI solutions, pipelines, and integrations.

Your role:
  • Translate business requirements into robust, high-performance AI architectural blueprints.
  • Write clean, modular, and maintainable production code.
  • Conduct model tuning, quantization, and pruning to ensure models meet performance thresholds.
  • Act as a lead developer to mentor junior staff and ensure best practices in code quality and model security
  • Comfortable working within an Agile/Scrum framework with frequent delivery milestones.
  • Commitment to maintaining comprehensive architectural documentation, including data flow diagrams and API specifications.
  • Strict adherence to data privacy standards and secure AI development practices
  • Proven delivery of ninja with robust portfolio of quantifiable success stories
Your skills and experience:
  • Experience designing scalable machine learning infrastructure (on-prem, cloud-hybrid, or multi-cloud environments).
  • Minimum of 10+ years of experience designing, developing, and delivering enterprise-scale technology solutions, including AI/ML architectures, with a proven ability to translate business requirements into secure, scalable, and high-performance AI platforms.
  • Ability to evaluate and select the right LLMs, SLMs, or traditional ML models based on latency, cost, and accuracy requirements.
  • Expertise in integrating AI services with existing enterprise software ecosystems, including security, compliance, and data governance frameworks.
  • Proficiency in Python-based frameworks (e.g., PyTorch, TensorFlow, LangChain, LlamaIndex).
  • Hands-on experience with CI/CD for AI, model versioning, and monitoring tools (e.g., MLflow, Kubeflow, Weights & Biases).
  • Strong background in RESTful API development (FastAPI, Flask) and data pipeline architecture (Apache Airflow, Kafka, Spark).
  • Deep understanding of the underlying principles of neural networks and transformer architecture.
  • Ability to interpret and optimize model performance using formulas related to loss functions and optimization
  • Strong proficiency in Python, SQL, and familiarity with C++ or Go for high-performance components.
  • Expertise in containerization and orchestration using Docker and Kubernetes.
  • Experience with Vector Databases (e.g., Pinecone, Milvus, Weaviate) and traditional RDBMS/NoSQL databases.

The base compensation range for this role in the posted location is: $82,082- $193,440/year

Capgemini provides compensation range information in accordance with applicable national, state, provincial, and local pay transparency laws. The base compensation range listed for this position reflects the minimum and maximum target compensation Capgemini, in good faith, believes it may pay for the role at the time of this posting. This range may be subject to change as permitted by law.

The actual compensation offered to any candidate may fall outside of the posted range and will be determined based on multiple factors legally permitted in the applicable jurisdiction.

These may include, but are not limited to: Geographic location, Education and qualifications, Certifications and licenses, Relevant experience and skills, Seniority and performance, Market and business consideration, Internal pay equity.

It is not typical for candidates to be hired at or near the top of the posted compensation range.

In addition to base salary, this role may be eligible for additional compensation such as variable incentives, bonuses, or commissions, depending on the position and applicable laws.

Capgemini offers a comprehensive, non-negotiable benefits package to all regular, full-time employees. In the U.S. and Canada, available benefits are determined by local policy and eligibility and may include:

Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave

Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)

Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)

Life and disability insurance

Employee assistance programs

Other benefits as provided by local policy and eligibility

Important Notice: Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini's discretion, consistent with applicable laws. The Company reserves the right to amend or withdraw compensation programs at any time, within the limits of applicable legislation.

Disclaimers

Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. Capgemini also participates in the Partnership Accreditation in Indigenous Relations (PAIR) program which supports meaningful engagement with Indigenous communities across Canada by promoting fairness, accessibility, inclusion and respect. We value the rich cultural heritage and contributions of Indigenous Peoples and actively work to create a welcoming and respectful environment. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law.

This is a general description of the Duties, Responsibilities and Qualifications required for this position. Physical, mental, sensory or environmental demands may be referenced in an attempt to communicate the manner in which this position traditionally is performed. Whenever necessary to provide individuals with disabilities an equal employment opportunity, Capgemini will consider reasonable accommodations that might involve varying job requirements and/or changing the way this job is performed, provided that such accommodation does not pose an undue hardship. Capgemini is committed to providing reasonable accommodation during our recruitment process. If you need assistance or accommodation, please reach out to your recruiting contact.

Please be aware that Capgemini may capture your image (video or screenshot) during the interview process and that image may be used for verification, including during the hiring and onboarding process.

Click the following link for more information on your rights as an Applicant in the United States. http://www.capgemini.com/resources/equal-employment-opportunity-is-the-law

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.


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About United Airlines

Sourced by ZipRecruiter

United Airlines is embarking on an exciting journey to become the best airline in aviation history. Our purpose, "Connecting People, Uniting the World," extends beyond transportation, emphasizing our commitment to uplift and create opportunities in the places we serve. With a global presence and diverse workforce, we value inclusivity and are dedicated to hiring tens of thousands of individuals across various roles. Our comprehensive benefits package, including perks like space available travel, parental leave, and 401k, aims to support your well-being and growth.

Industry

Aviation

Company size

10,000+ Employees

Headquarters location

Chicago, IL, US

Year founded

1926

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