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Fastapi Developer Jobs in Missouri (NOW HIRING)

MasterCard

Senior AI Engineer

O Fallon, MO · Hybrid

$97K - $134K/yr

Excellent Python engineering skills including async programming, API development (FastAPI), and building inference-ready microservices; SQL proficiency required. Hands-on experience with cloud AI ...

Jobgether

... DevOps, and cloud technologies. * Experience with technologies such as OpenAI or Anthropic SDKs, LangChain, LangSmith, smolagents, FastAPI, Flask, Kubernetes, Docker, and Git is highly valuable.

New

Omni Federal

Software Engineer

Saint Louis, MO · On-site

Experience building backend web services using FastAPI or Node.js * Experience working with ... Experience as a full-stack developer, including Web Services, Database, and Front-End Development

Mastercard, Inc.

Senior AI Engineer

O Fallon, MO · On-site

$97K - $134K/yr

Title and Summary Senior AI Engineer Mastercard's Business & Market Insights (B&MI) group empowers ... FastAPI), and building inference-ready microservices; SQL proficiency required. • Hands-on ...

Walmart

Software Engineer III- AI Systems

Cassville, MO · On-site

$90K - $180K/yr

Create internal SDKs/CLIs to streamline developer workflows, testing, and reproducibility. Quality ... FastAPI/Flask (Python), K8s (Kubernetes) and containerization (Docker). * Strong foundations in ...

Walmart

Software Engineer III- AI Systems

Anderson, MO · On-site

$90K - $180K/yr

Create internal SDKs/CLIs to streamline developer workflows, testing, and reproducibility. Quality ... FastAPI/Flask (Python), K8s (Kubernetes) and containerization (Docker). * Strong foundations in ...

Walmart

Software Engineer III- AI Systems

Noel, MO · On-site

$90K - $180K/yr

Create internal SDKs/CLIs to streamline developer workflows, testing, and reproducibility. Quality ... FastAPI/Flask (Python), K8s (Kubernetes) and containerization (Docker). * Strong foundations in ...

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$49

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How much do fastapi developer jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for fastapi developer in Missouri is $49.56, according to ZipRecruiter salary data. Most workers in this role earn between $37.88 and $60.67 per hour, depending on experience, location, and employer.

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 are the key skills and qualifications needed to thrive as a FastAPI developer?

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 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 most commonly searched types of Fastapi Developer jobs in Missouri?

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

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

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

What job categories do people searching Fastapi Developer jobs in Missouri look for?

The top searched job categories for Fastapi Developer jobs in Missouri are:

What cities in Missouri are hiring for Fastapi Developer jobs?

Cities in Missouri with the most Fastapi Developer job openings:

Fastapi Developer jobs near you
Infographic showing various Fastapi Developer job openings in Missouri as of August 2026, with employment types broken down into 86% Full Time, 3% Part Time, and 11% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $103,091 per year, or $49.6 per hour.

4004 Mid Level Software Engineer with Security Clearance

Saint Louis, MO • On-site

Procession Systems
Recruiting and Staffing Services • 11 - 50 employees
Learn more about Procession Systemsexternal

Other

Re-posted 11 days ago

Job description

OVERVIEW: We are seeking a Software Engineer to support our client's intelligence analysis products and capabilities. This position involves providing software development capabilities to enhance existing and emerging client capabilities, including design and development, modernization of existing applications and services, and operations and sustainment. The role focuses on driving the client's adaptation of higher levels of automation and operational efficiency through agile development methodologies, rapid prototyping, and modern technology stacks. GENERAL DUTIES: * Develop, modernize, and maintain software applications and services * Contribute to the design and architecture of high-performance applications * Leverage agile methodologies to enhance operational efficiency * Participate in rapid prototyping to quickly iterate and improve solutions * Utilize modern technology stacks to meet client needs * Implement CI/CD pipelines using GitLab * Collaborate with cross-functional teams to deliver high-quality software solutions REQUIRED QUALIFICATIONS: * Bachelor's degree in Computer Science, Engineering, Mathematics, Information Systems, or a related technical degree with 4+ years of experience in software engineering/development or Masters and with 2+ years of experience in software engineering/development * Working in Agile environments * Using GitLab for code source repository and using GitLab CI/CD * Proficiency in at least two of the following: * Python application/API development * FastAPI * Building high-performance applications in React.js * Web services architecture, design, and development * PostgreSQL database design * AWS and specific AWS tooling (S3, DynamoDB, SQS, SNS) * Developing customized code, scripts, modules, macro procedures, or libraries for specialized spatial analysis functions using languages such as Python, Java, JavaScript, PHP, C, C++, C#, Perl, or similar * Key Technologies: * Linux * Java * Containerization (Docker, Podmad, Kubernetes, ...) * VS Code * Jira DESIRED QUALIFICATIONS: * Experience working independently with clients or stakeholders to develop user stories for full-service consumer and business applications * Experience with government and/or commercial imagery products, including SAR or related RADAR imaging technologies * Developing geospatial information systems (GIS) and working with open-source and proprietary geospatial formats * Using and developing common geospatial tools, data, and operating platforms such as: * Tools: Boundless Spatial suite, Remote View, PostGRES/PostGIS, Oracle Spatial, ArcGIS Desktop, ArcGIS Server, Image Server, File Geodatabases * Data Formats: KML, KMZ, NITF, TIFF, JPEG, GeoPDF, and similar geo-related formats and data structures * Operating Platforms: ESRI, OpenGeo Suite, or similar * Abstracting new or legacy systems via standards-based APIs, including Open Geospatial Consortium standards * Developing terrain analysis visualization and algorithms * Developing automated detection algorithms CLEARANCE: * TS/SCI minimum
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About Procession Systems

Sourced by ZipRecruiter

Procession Systems, based in Reston, Virginia, United States, is an industry leader operating in the Information Technology Services sector. Established to address complex business and technology challenges, the company delivers innovative tech solutions for government entities, primarily focusing on systems integration and software development. Procession Systems takes pride in their commitment to quality, responsiveness, and results, geared towards improving public sector services and saving taxpayer dollars.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Reston, VA, US

Year founded

2016

Social media

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