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Python Fastapi Developer Jobs in San Antonio, TX

Frost

Engineer III - AI

San Antonio, TX · On-site

They are seeking an Engineer III - AI to lead technical efforts on AI reliability, bias mitigation ... with Python, FastAPI, LangChain, vector databases, and agent loop architectures • Excellent ...

Frost Bank

Engineer III - AI

San Antonio, TX · On-site

If so, being an Engineer III - AI with Frost could be for you. At Frost, it's about more than a job ... Strong experience with Python, FastAPI, LangChain, vector databases, and agent loop architectures

Frost Bank

Engineer III - AI

San Antonio, TX

If so, being an Engineer III - AI with Frost could be for you. At Frost, it's about more than a job ... Strong experience with Python, FastAPI, LangChain, vector databases, and agent loop architectures

Booz Allen Hamilton

AI Developer

San Antonio, TX · On-site

$77K - $176K/yr

... Python, TypeScript, or Java with APIs and data services, including FastAPI, Flask, REST, GraphQL ... Bachelor's degree in Engineering, Computer Science, or Data Science Nice If You Have: * Experience ...

Booz Allen Hamilton, Inc.

AI Developer

San Antonio, TX · On-site

$77K - $176K/yr

... Python, TypeScript, or Java with APIs and data services, including FastAPI, Flask, REST, GraphQL ... Bachelor's degree in Engineering, Computer Science, or Data Science Nice If You Have: * Experience ...

Guidehouse

Lead Full Stack Developer

Boerne, TX

Expert proficiency in Python and JavaScript, with proven experience leading teams of five or more developers. * Django experience is preferred; experience with Flask, FastAPI, Falcon, or SQLAlchemy ...

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How much do python fastapi developer jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for python fastapi developer in San Antonio, TX is $52.88, according to ZipRecruiter salary data. Most workers in this role earn between $43.56 and $60.05 per hour, depending on experience, location, and employer.

What is a Python FastAPI developer?

A Python FastAPI Developer is responsible for designing, developing, and maintaining backend applications using FastAPI, a modern web framework for building APIs with Python. They work on creating high-performance APIs, integrating with databases, implementing authentication, and ensuring scalability. This role often involves working with asynchronous programming, cloud services, and containerization tools like Docker. Developers collaborate with teams to create efficient, secure, and well-documented API endpoints for web and mobile applications.

What are the key skills and qualifications needed to thrive in the Python FastAPI developer position, and why are they important?

To thrive as a Python FastAPI Developer, you need strong proficiency in Python programming, experience designing RESTful APIs with FastAPI, and a background in web development concepts. Familiarity with version control systems like Git, containerization tools such as Docker, and knowledge of cloud platforms or SQL/NoSQL databases are commonly required, and certifications in cloud services or Python development can be advantageous. Excellent problem-solving skills, effective communication, and the ability to collaborate in agile teams help developers contribute efficiently to complex projects. These competencies ensure robust, scalable backend solutions and smooth coordination within development teams to meet business goals.

What are some typical daily tasks for a Python FastAPI developer?

A Python FastAPI Developer typically spends their day designing, developing, and maintaining RESTful APIs to support web or mobile applications. This involves writing clean and efficient Python code, collaborating with frontend developers or other backend engineers to integrate new features, and ensuring the application meets performance and security standards. Developers also participate in code reviews, debugging, and continuous integration processes, while regularly communicating with product managers or stakeholders to align on project requirements. Staying up to date with FastAPI enhancements and industry best practices is also a common part of the role.

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Python Fastapi Developer jobs near you

Senior Python Engineer - AI Coding Agent Evaluation (Freelance)

Mindrift

San Antonio, TX • Remote

$200/hr

Part-time

Posted 21 days ago

Job description

Please submit your CV in English and indicate your level of English proficiency.


Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.What this opportunity involves:
We're building a dataset to evaluate AI coding agents - how well a model handles real-world developer tasks.


You'll create challenging tasks and evaluation criteria within realistic simulated environments:

  • Build realistic developer environments - a virtual company with codebase, infrastructure, and context (tickets, docs, conversations) that forms a believable development history
  • Design tasks from intermediate states of these environments - craft the prompt, define what "solved" means, and ensure the task is solvable by an AI agent
  • Write tests that verify agent solutions - accept all valid approaches and reject incorrect ones, neither too strict nor too lenient
  • Iterate on tasks and tests based on QA feedback - review agent solutions, analyze failures, and refine until the evaluation is fair and robust

What this is NOT:

  • Not data labeling
  • Not prompt engineering
  • Not writing code from scratch - the agent writes most of the code; you guide and evaluate

What we look for:

  • 8+ years in software development
  • Core stack: Python (FastAPI), JavaScript/TypeScript (React), Docker, Postgres, Kafka, Redis
  • Experience writing tests (functional, integration)
  • English proficiency - B2+

Why this is hard:
Frontier models are already good at coding. Creating a task that genuinely challenges the best models is non-trivial. You need to deeply understand where models fail and what scenarios reveal the difference between a good and a bad solution. Tasks have many valid solutions - writing tests that accept all correct solutions and reject incorrect ones is harder than it sounds.

How it works
Apply Pass qualification(s) Join a project Complete tasks Get paidEffort estimate


Tasks for this project are estimated to take 30 hours to complete, depending on complexity. This is an estimate and not a schedule requirement; you choose when and how to work. Tasks must be submitted by the deadline and meet the listed acceptance criteria to be accepted.

Compensation:
Up to $200/hr equivalent, depending on level and pace. Tasks are estimated at ~30 hours each; you set your own schedule.

Apply