38 senior fastapi developer jobs at 24 companies in Illinois
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Senior Software Engineer
Chicago, Illinois, United States
$153k/yr RemoteFull Time
5+ YOERequires advanced Python development, relational/vector databases, cloud services, and AI/ML concepts with REST APIs and CI/CD.
Python, FastAPI, Flask, REST API, PostgreSQL, SQLAlchemy, Weaviate, Pinecone, Pandas, Plotly, Matplotlib, AWS, S3, RDS, API Gateway, Lambda, Redis, SQS, Celery, Git, CI/CD, GraphQL, OpenAI, Anthropic, MistralAI, UML
3w
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Senior Backend Software Engineer
Arkansas or California or Colorado or District of Columbia or Florida or Illinois or Massachusetts or Maryland or Maine or Michigan or New Jersey or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia or Washington
$165k-$195k/yr RemoteFull Time
5+ YOE5+ years backend development experience with Python and FastAPI, strong backend architecture, relational modeling, AWS services, Docker, CI/CD, and cross-team communication.
Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, Flyway, AWS, ECS, Lambda, RDS, S3, IAM, Docker, Git, CI/CD, GitHub Actions, AWS CodePipeline, Claude Code, Cursor, Terraform, Terragrunt, Datadog, Sentry, LangGraph, Claude Code SDK, Amazon Bedrock
1d
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Senior GenAI/Python Engineer
Chicago, Illinois, United States
$90k-$130k/yr OnsiteFull Time
8+ YOE5+ years advanced Python development, 1.5+ years production GenAI/LLM experience, FastAPI and async orchestration, vector DB/RAG and SQL knowledge, cloud experience (Azure/AWS/GCP).
Python, typing, pytest, Git, CI/CD, Docker, OpenAI, Azure OpenAI, Anthropic, Bedrock, LangChain, LangGraph, LlamaIndex, Pydantic, JSON schema, embeddings, pgvector, Pinecone, Weaviate, OpenSearch, Snowflake, FastAPI, Flask, Django, SQL, Azure, AWS, GCP, Confluence
2mo
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Senior Platform Engineer
Atlanta or Boston or Chicago or Dallas or New York
HybridFull Time
6+ YOE6+ years backend platform engineering; Kubernetes, Python, Postgres, Kafka, Redis; security and AI tooling.
Python, FastAPI, Pydantic, SQLAlchemy, Alembic, PostgreSQL, Redis, Kafka, Docker, Kubernetes, OpenTelemetry, Prometheus, Helm, Vault, Azure Key Vault, Azure Monitor
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Senior Software Engineer
Chicago, Illinois, United States
$153k/yr OnsiteFull Time
5+ YOEBachelor's or Master’s in Computer Science or related field with years of relevant software engineering experience; 5 years with Bachelor's or 3 years with Master's; strong Python and cloud skills.
Python, FastAPI, Flask, REST, PostgreSQL, SQLAlchemy, Weaviate, Pinecone, QlikView, Pandas, Plotly, Matplotlib, AWS, S3, RDS, Lambda, GraphQL, Celery, Redis, SQS, Git, OpenAI, Anthropic, MistralAI
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Senior Research Engineer - Experimental Engineering
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
Senior research engineer with deep full-stack software engineering experience, strong applied AI/ML knowledge, prototyping and R&D experience, Python/FastAPI and frontend (React/React Native) familiarity, and ability to lead experiments and mentor engineers.
AI, Machine Learning, Python, FastAPI, React, React Native, RAG
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Senior AI Engineer
Plano or Purchase or Chicago
$111k-$185k/yr HybridFull Time
8+ YOESenior AI Engineer with 8+ years in software lifecycle, ML/AI, and production-grade agent systems; strong Python/Java, distributed systems, and ML Ops experience.
Python, Java, FastAPI, asyncio, Pydantic, LangChain, LangGraph, CrewAI, MLflow, Arise, Docker, Kubernetes, Ray, Kafka, gRPC, Redis, Prometheus, OpenTelemetry, Grafana, Temporal, MEM0, Temporal Agentic Memory, Graph and Vector DBs
6d
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Senior Software Engineer, Treasury (Ruby/Python)
Chicago, Illinois, United States
$175k-$275k/yr OnsiteFull Time
Senior generalist engineer with experience in Python or Ruby, full-stack development, relational data modeling, GitOps/Kubernetes, job orchestration (Airflow/Prefect) and partnering with business stakeholders.
Python, Ruby, FastAPI, Rails, Kubernetes, GitOps, CI/CD, Airflow, Prefect
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AI/ML Engineer (Senior Associate) - Remote
Chicago or Toronto or United States or Canada
$130k-$160k/yr RemoteFull Time
3+ YOE3+ years AI/ML development experience, Bachelor’s in CS/Engineering/Data Science, proficiency in Python, familiarity with scikit-learn/PyTorch/TensorFlow/OpenAI APIs, cloud platforms (Azure, AWS) and Docker, API development experience (FastAPI/Flask).
Python, scikit-learn, PyTorch, TensorFlow, OpenAI APIs, LangGraph, AutoGen, CrewAI, FastAPI, Flask, Azure, AWS, Docker, vector databases, Azure Machine Learning, AWS SageMaker, Google AI/ML services, MLOps, CI/CD, MCP
2mo
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GenAI Python Systems Engineer –Senior Manager
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$124k-$280k/yr HybridFull Time
8+ YOESenior Manager level with 8+ years of experience; proficient in Python, SQL, FastAPI; cloud certifications a plus; willing to travel up to 80%; Bachelor's degree required.
Python, SQL, FastAPI, Cloud Platforms, LLM techniques, Data Warehousing, Data Lakes, IAM
6d
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Lead Software Engineer, Gen AI
Chicago or Peoria
$128k-$209k/yr OnsiteFull Time
Experience developing and deploying Gen AI solutions using Python, CI/CD, AWS, FastAPI and working with LLM frameworks; strong software design, testing, and collaboration skills.
Python, GitHub Actions, CloudFormation, LangChain, LangGraph, Semantic Kernel, Crew.ai, FastAPI, Apache Airflow, GoLang, React, SageMaker Studio, Lambda, API Gateway, RDS, Git
2mo
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Senior AI Engineer
Plano or Purchase or Chicago
$111k-$185k/yr HybridFull Time
8+ YOELead design and delivery of production-grade agent capabilities across cloud and edge environments; architect scalable agent systems; drive evaluation and integration patterns.
Python, Java, FastAPI, Kubernetes, Docker, MLflow, Prometheus, OpenTelemetry, Grafana, Kafka, gRPC, Redis, LangChain, LangGraph, CrewAI, Tempor al, Mem0
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Senior Software Engineer, Backend Services
Chicago, Illinois, United States
$150k-$170k/yr HybridAll Commitments Available
5+ YOESenior Python engineer with 5-7 years in large-scale systems, building SaaS/PaaS, and data management experience.
Python, FastAPI, Flask, PostgreSQL, SQL, REST, AWS, Docker, PySpark, Kafka, OpenSearch, Elasticsearch, Lustre, GPFS, VAST, Parquet, S3, Security: OAuth2, SAML, OpenID Connect
1mo
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Senior Full Stack Engineer - AI (Chicago, IL, US)
Chicago, Illinois, United States
$140k-$150k/yr HybridFull Time
5+ YOE5+ years software engineering experience; bachelor's degree preferred; experience with React, Java micro-services, Kafka, AWS data services, Python (PySpark, Pandas, FastAPI), SQL, Airflow, Snowflake, data governance tools, and designing REST/GraphQL APIs.
React, micro-frontend, micro-services, Java, Kafka, CI/CD, Python, PySpark, Pandas, FastAPI, SQL, SQL Server, PostgreSQL, AWS Glue, AWS Lambda, Amazon S3, Amazon DynamoDB, Airflow, Snowflake, Iceberg, Delta Lake, Collibra, Alation, Starburst, REST, GraphQL, GitHub Copilot, Claude Code, Amazon Q, Cursor, Azure Blob storage, Azure Functions, MCP
1mo
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Senior AI Software Engineer
Chicago, Illinois, United States
$72k-$141k/yr HybridFull Time
7+ YOE7+ years systems analysis and application development experience including 3+ years building AI solutions; strong Java, Python, TypeScript skills; experience with LLMs, RAG, GCP, APIs, CI/CD, observability; bachelor’s in CS preferred.
LLMs, RAG, Java, Python, TypeScript, FastAPI, Spring Boot, GitHub Copilot, Claude Code, Cursor, MCPs, Google Cloud Platform (GCP), GKE, Cloud Storage, PostgreSQL, Pub/Sub, Secret Manager, BigQuery, Vertex AI, Docker, GitHub, GitHub Actions, React, SQL, NoSQL, OAuth, JWT
1mo
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Senior Software Engineer
Chicago, Illinois, United States
$153k/yr HybridFull Time
5+ YOE5+ years software engineering experience (or 3+ with master's), bachelor's in CS or related, strong Python, database, cloud, ML/NLP, and AI governance knowledge.
Python, FastAPI, Flask, RESTful, PostgreSQL, SQLAlchemy, Weaviate, Pinecone, SQL Server, QlikView, Pandas, Plotly, Matplotlib, AWS S3, Aurora, RDS, API Gateway, AWS Lambda, GraphQL, Git, SQS, Celery, Redis, OpenAI, Anthropic, MistralAI, LangGraph, AutoGen, Split, CloudBees, Transformers
2w
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Senior Software Engineer
San Mateo or Arizona or California or Colorado or Florida or Georgia or Illinois or Nevada or North Carolina or Oregon or Texas or Utah or Washington
$160k-$180k/yr RemoteFull Time
5+ YOE5-7 years software engineering, Bachelor's in Computer Science or related (preferred), proficiency in Python and Java, experience with event-driven architectures, cloud (AWS), Kubernetes, real-time data pipelines, and healthcare data standards.
Apache Kafka, Airflow, Flink, DataDog, Kibana, Kafka Streams, Spark Streaming, Flask, FastAPI, Spring Boot, AWS, Kubernetes, Kinesis, Python, Java, Redshift, BigQuery, Snowflake, DynamoDB, FHIR, CCDA, HL7 V2/V3, DICOM
1w
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Senior Software Engineer, AI Agentic Experience (Auth0)
Bellevue or Chicago or New York City
$147k-$202k/yr HybridFull Time
5+ YOE5+ years software engineering experience building developer tools or platforms; proficiency in JavaScript/TypeScript, Golang and/or Python; experience with LLM APIs or agent runtimes; familiarity with OAuth2/OIDC/JWT; strong architecture, documentation, and collaboration skills.
JavaScript, TypeScript, Python, React, Next.js, FastAPI, OAuth2, OIDC, JWT
5d
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Lead Software Engineer, Gen AI
Chicago or Peoria
$128k-$209k/yr OnsiteFull Time
Experience designing and delivering Gen AI solutions using Python, OOP, CI/CD, AWS, LLMs, FastAPI and ML pipelines; strong software architecture, testing, and cross-functional collaboration skills.
Python, GitHub Actions, CloudFormation, LangChain, LangGraph, Semantic Kernel, Crew.ai, Large Language Models (LLMs), FastAPI, Apache Airflow, GoLang, React, Git, SageMaker Studio, Lambda, API Gateway, RDS
1d
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Senior Software Engineer (Full Stack)
Alabama or Arkansas or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Illinois or Indiana or Kentucky or Louisiana or Maryland or Maine or Michigan or Minnesota or Missouri or North Carolina or New Hampshire or New Jersey or New York or Ohio or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Vermont or Washington
RemoteFull Time
5+ YOE5+ years building production full‑stack applications; strong JavaScript/TypeScript and React experience, backend skills (PHP/Node/Python), cloud and DevOps knowledge, API and database expertise, strong communication and systems design.
JavaScript, TypeScript, React.js, Vue.js, Angular, HTML5, CSS3, SASS, PHP, Node.js, Python, Django, FastAPI, PostgreSQL, MySQL, MongoDB, DynamoDB, Redis, AWS, GCP, Azure, Docker, Kubernetes, GitHub Actions, Jenkins, GitLab, Claude Code, Cursor, Copilot
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