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Fastapi Jobs in Chicago, IL (NOW HIRING)

Catalyst Labs

ML Engineer

Chicago, IL · On-site

Preferred : • Familiarity with FastAPI, OpenAI APIs, Baseten, LiteLLM, LiveKit, PostgreSQL, Redis, and S3 is a plus. Company : Welcome to Catalyst Labs - Powering Catalytic Growth At Catalyst Labs ...

Horizontal Talent

AI Engineer

Chicago, IL · On-site +1

Knowledge of modern application and data technologies such as containers, Kubernetes, FastAPI, Kafka, PostgreSQL, MongoDB, Cosmos DB, and Neo4j * Strong understanding of when to apply relational ...

ShyftOff

Senior Full Stack Engineer

Chicago, IL · On-site

FastAPI Data : PostgreSQL Cloud: ECS, EC2, Lambda, RDS, S3 Tools: n8n, Cursor, Github Copilot, ChatGPT Why ShyftOff This is a chance to join a fast-growing startup building a category-defining ...

Miller Cooper

Full Stack Software Engineer

Chicago, IL · Remote

$125K - $145K/yr

Python (Django, FastAPI, Flask), microservices development, RESTful API design, Kubernetes, and Terraform. * Frontend: React, HTML5, CSS3, Typescript, JavaScript. * Database: SQL (e.g., PostgreSQL ...

Miller Cooper

Full Stack Software Engineer

Chicago, IL · Remote

$125K - $145K/yr

Python (Django, FastAPI, Flask), microservices development, RESTful API design, Kubernetes, and Terraform. * Frontend: React, HTML5, CSS3, Typescript, JavaScript. * Database: SQL (e.g., PostgreSQL ...

P2P

Senior Software Engineer, Treasury (Ruby/Python)

Chicago, IL · On-site

$175 - $275/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Full-stack development in Python (FastAPI) and/or Ruby (Rails) * Strong relational data modeling fundamentals * GitOps and Kubernetes * Job orchestration systems (Airflow, Prefect, etc.) Candidates ...

Optiver

Senior Production Software Engineer

Chicago, IL

$126K - $166K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Experience with technologies such as Ansible, Django, FastAPI, Flask, Jenkins, Hashicorp Vault, Docker/Podman and Kubernetes would be beneficial * Previous experience in production management would ...

Excel Sports Management

Data Engineer

Chicago, IL

$100K - $115K/yr

Experience building APIs or services to expose data (FastAPI, Flask, or similar). * Experience with BI tools (Power BI, Tableau). * Experience working in the sports industry and/or the agency world.

DRW

Senior Software Engineer, Treasury (Ruby/Python)

Chicago, IL · On-site

$175K - $275K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Full-stack development in Python (FastAPI) and/or Ruby (Rails) * Strong relational data modeling fundamentals * GitOps and Kubernetes * Job orchestration systems (Airflow, Prefect, etc.) Candidates ...

Infleqtion

Quantum Software Engineer - Nuclear

Chicago, IL · On-site

$107K - $144K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Experience with backend development with tools such as FastAPI for web frameworks and PostgreSQL/SQLAlchemy for databases. * Experience with cloud development, especially on GCP and AWS.

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$122.7K

$138.6K

$156.5K

How much do fastapi jobs pay per year?

As of Aug 18, 2026, the average yearly pay for fastapi in Chicago, IL is $138,566.00, according to ZipRecruiter salary data. Most workers in this role earn between $131,381.00 and $143,698.00 per year, depending on experience, location, and employer.

What is a FastAPI?

A FastAPI job typically involves developing, maintaining, and optimizing web applications and APIs using the FastAPI framework. FastAPI is a modern, high-performance web framework for Python that is designed for building APIs quickly with automatic OpenAPI generation. Professionals in this role are expected to have experience with Python, asynchronous programming, and API development, often working with databases, authentication, and cloud services.

What are the typical daily responsibilities of a FastAPI developer?

As a FastAPI Developer, your daily tasks typically include designing and implementing RESTful APIs, writing efficient and maintainable code, and performing thorough testing to ensure reliability and performance. You may also collaborate closely with frontend developers, DevOps engineers, and QA teams to integrate new features and troubleshoot issues. Regular code reviews, documentation, and participation in agile development meetings are common parts of the workday. This collaborative and dynamic environment allows you to make a direct impact on the product while growing your skills through hands-on problem-solving and teamwork.

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

To thrive as a FastAPI Developer, you need strong proficiency in Python, REST API design, and knowledge of web frameworks, ideally supported by a relevant degree or industry certifications. Familiarity with tools like Docker, Git, asynchronous programming, and testing frameworks such as Pytest is often required. Excellent problem-solving skills, adaptability, and clear communication are valuable soft skills in this role. These competencies ensure robust API development, seamless collaboration, and the delivery of high-quality software solutions in agile environments.

What are the most commonly searched types of Fastapi jobs in Chicago, IL?

The most popular types of Fastapi jobs in Chicago, IL are:

What are popular job titles related to Fastapi jobs in Chicago, IL?

For Fastapi jobs in Chicago, IL, the most frequently searched job titles are:

What job categories do people searching Fastapi jobs in Chicago, IL look for?

The top searched job categories for Fastapi jobs in Chicago, IL are:

Fastapi jobs near you
Infographic showing various Fastapi job openings in Chicago, IL as of August 2026, with employment types broken down into 90% Full Time, 4% Part Time, and 6% Contract. Highlights an 76% Physical, 8% Hybrid, and 16% Remote job distribution, with an average salary of $138,566 per year, or $66.6 per hour.

Postdoctoral Appointee - Building Agentic AI Platform for X-ray Science

Argonne National Laboratory

Lemont, IL • On-site

$49K - $67K/yr

Full-time

Re-posted 6 days ago

Job description

Job Summary:
Argonne National Laboratory is seeking a highly motivated Postdoctoral Researcher to join the X-ray Science Division. The successful candidate will develop an AI-enabled platform for X-ray absorption spectroscopy, working with a multidisciplinary team to advance agentic AI tools for simulation, interpretation, data analysis, and scientific discovery.
Responsibilities:
• Develop an AI-enabled platform for X-ray absorption spectroscopy by integrating LLMs, scientific machine learning, physics-aware workflows, and strong computational chemistry/electronic-structure expertise.
• Work with a multidisciplinary team to advance agentic AI tools for simulation, interpretation, data analysis, and scientific discovery.
Qualifications:
Required:
• A recent PhD (within 5 years) in computational chemistry, chemistry, materials science, physics, computational science, computer science, engineering, or a related field.
• Strong computational chemistry background in atomistic simulations, electronic-structure theory, DFT, structure-property relationships, and interpretation of simulation results.
• Hands-on experience with DFT or electronic-structure codes such as VASP, Quantum ESPRESSO, CP2K, ABINIT, GPAW, Gaussian, ORCA, Q-Chem, or related packages.
• Strong materials science or chemistry domain knowledge, such as bonding, defects, catalysis, batteries, solid-state chemistry, molecular systems, or related materials classes.
• Strong Python skills and familiarity with LLM APIs, agent frameworks, PyTorch, and the Python scientific stack (e.g., numpy, pandas, scikit-learn). Passion for front-end development and web-based applications, back-end services and API design (e.g., FastAPI, Flask), and deploying applications in local or cloud environments.
• Experience with complex scientific datasets and reproducible analysis or simulation workflows.
• Effective written and oral communications skills.
• Demonstrated ability to work both independently and collaboratively in a multidisciplinary environment.
• Commitment to Argonne's Core Values: Impact, Safety, Respect, Integrity, and Teamwork.
Preferred:
• Experience with X-ray absorption spectroscopy theory, modelling, and interpretation, including XANES/EXAFS.
• Hands-on experience with XAS simulation packages such as FEFF, OCEAN, FDMNES, XSpectra, or exciting.
• Experience comparing simulated and experimental XAS/XAFS spectra.
• Experience with high-throughput spectroscopy workflows, HPC, synchrotron datasets, or physics-informed AI.
Company:
Argonne National Laboratory conducts researches in basic science, energy resources, and environmental management. Founded in 1946, the company is headquartered in Lemont, USA, with a team of 1001-5000 employees. The company is currently Late Stage.

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