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Senior Fastapi Jobs in Plainfield, IL (NOW HIRING)

PB consulting

Senior AI Solutions Architect

Lyons, IL · On-site

We are seeking a Senior AI Solutions Architect to lead the architecture and development of scalable ... Design and develop scalable Python APIs and microservices using FastAPI, Flask, or similar ...

Hoplon InfoSec, LLC

Senior AI/ML Engineer

Oak Brook, IL · On-site

$140 - $190/hr

Immediately About theRole We are lookingfor a Senior AI/ML Engineer with 5+ years of hands-on ... Track record of serving models at scaleusing frameworks like Triton, vLLM, FastAPI, or TorchServe.

Northern Base

Senior GenAI/Python Engineer

Chicago, IL · Remote

$124K - $167K/yr

Senior GenAI/Python Engineer Location: Remote (USA) Employment Type: Full-Time Visa Type: USC / GC ... FastAPI, Flask, or Django frameworks ✔ Experience with asynchronous Python programming and ...

84.51°

Senior Data Engineer

Chicago, IL · On-site

$109K - $148K/yr

H1-B visa, F-1 visa (OPT), TN visa or any other non-immigrant status)_ As a Senior Data Engineer ... This role will also have exposure to Python microservice development, leveraging FastAPI, Helm, AKS ...

84.51°

Senior Data Engineer

Chicago, IL · On-site

$109K - $148K/yr

H1-B visa, F-1 visa (OPT), TN visa or any other non-immigrant status)_ As a Senior Data Engineer ... This role will also have exposure to Python microservice development, leveraging FastAPI, Helm, AKS ...

84.51

Senior Python & Snowflake Engineer (Hybrid)

Chicago, IL · Hybrid

$125K - $168K/yr

As a Senior Software Engineer, you will be part of a cross-functional team, applying your skill ... Strong fundamentals, with overlap across our tech stack (Python, Snowflake, FastAPI, PostgreSQL ...

84.51

Senior Python & Snowflake Engineer (Hybrid)

Chicago, IL · Hybrid

$125K - $168K/yr

As a Senior Software Engineer, you will be part of a cross-functional team, applying your skill ... Strong fundamentals, with overlap across our tech stack (Python, Snowflake, FastAPI, PostgreSQL ...

Caterpillar

Senior Software Engineer, Gen AI

Chicago, IL · On-site

$126K - $166K/yr

As a Senior Software Engineer you will work on Generative AI projects focused building assistants ... Develop and deploy services using FastAPI on AWS. * Develop services and components to be deployed ...

Northern Base

Senior AI ML Engineer

Chicago, IL · On-site

$120K - $130K/yr

Python; model serving frameworks and API development such as FastAPI/MLflow; vector databases and embeddings; LangChain/LlamaIndex or similar orchestration; CI/CD; containerization; cloud deployment ...

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All JobsFastapi JobsSenior Fastapi JobsSenior Fastapi Jobs in Plainfield, IL

Senior Fastapi information

See Plainfield, IL salary details

$24.4K

$78.3K

$159.4K

How much do senior fastapi jobs pay per year?

As of Sep 5, 2026, the average yearly pay for senior fastapi in Plainfield, IL is $78,256.00, according to ZipRecruiter salary data. Most workers in this role earn between $40,400.00 and $100,400.00 per year, depending on experience, location, and employer.

What is the difference between Senior Fastapi vs Backend Developer?

AspectSenior FastapiBackend Developer
Primary FocusBuilding APIs with Fastapi frameworkDeveloping server-side logic across various frameworks
Required SkillsPython, Fastapi, async programming, REST API designPython, multiple frameworks (Django, Flask, Fastapi), database management
Work EnvironmentTech companies, startups, cloud-based projectsVaried industries, enterprise and startup environments
CertificationsPython certifications, Fastapi experiencePython certifications, general backend development certifications

Senior Fastapi specialists focus specifically on building high-performance APIs using the Fastapi framework, often requiring expertise in async programming and REST API design. Backend Developers have a broader scope, working across multiple frameworks and technologies to develop server-side logic. While both roles require Python skills, Senior Fastapi roles are more specialized, whereas Backend Developers have a wider range of tools and responsibilities.

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Senior Fastapi jobs near you

Senior AI Solutions Architect

PB consulting

Lyons, IL • On-site

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

We are seeking a Senior AI Solutions Architect to lead the architecture and development of scalable Generative AI, LLM, and RAG solutions. This is a hands-on technical leadership role focused on architecture, Python development, AWS, and production AI applications.

Responsibilities

*Own the end-to-end architecture and technical design of LLM and Generative AI solutions.
*Translate business requirements into scalable solution architectures, technical plans, and development tasks.
*Define architecture standards, integration patterns, technical decisions, and engineering best practices.
*Provide technical direction, mentor engineers, and lead design and code reviews.
*Design and develop scalable Python APIs and microservices using FastAPI, Flask, or similar frameworks.
*Architect and implement LLM applications, LangChain workflows, and RAG pipelines.
*Define strategies for prompt engineering, embeddings, chunking, retrieval, re-ranking, and model evaluation.
*Design and optimize vector database solutions using Pinecone, Chroma, FAISS, Milvus, or similar technologies.
*Establish monitoring and evaluation for quality, relevance, latency, reliability, safety, and cost.
*Design secure, scalable, and resilient AI services on AWS, including Lambda, EC2, S3, EKS, and RDS.
*Partner with DevOps/MLOps teams on CI/CD, infrastructure automation, observability, incident response, and production support.
*Ensure solutions meet enterprise requirements for security, governance, availability, scalability, fault tolerance, and operational readiness.

Required Qualifications

*Extensive software engineering experience with technical leadership responsibilities.
*Strong hands-on Python and backend development experience.
*Experience with FastAPI, Flask, or comparable frameworks.
*Proven experience delivering production LLM/Generative AI and RAG applications.
*Strong knowledge of LLM architecture, prompt engineering, embeddings, vector databases, retrieval, re-ranking, and evaluation.
*Experience with OpenAI, Anthropic, Hugging Face, LangChain, or similar platforms/frameworks.
*Strong AWS cloud architecture and deployment experience.
*Experience with microservices, APIs, cloud security, scalability, and distributed systems.
*Strong experience leading architecture/design reviews, code reviews, technical planning, and complex engineering initiatives.
*Ability to mentor engineers and influence technical decisions without formal management authority.

Preferred Skills

*Experience with MLOps, CI/CD, infrastructure as code, and observability.
*Experience with enterprise AI governance, security, and responsible AI practices.
*Experience optimizing AI applications for performance, reliability, and cost.
*Experience working with cross-functional application, data, cloud, security, DevOps, and platform teams.

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