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Senior Fastapi Developer Jobs in Illinois (NOW HIRING)

Site Technologies

Lead Backend Software Engineer

$185K - $215K/yr

This is a player-coach role: the Lead will directly manage 3 to 4 senior backend engineers, set ... Experience building production APIs with FastAPI or similar Python frameworks * Strong ...

84.51˚

Senior Data Engineer (P1692)

Chicago, IL · On-site

$126K - $166K/yr

... with FastAPI/Flask service development • Experience working with AKS/Kubernetes/Helm • Experience with DevOps / Monitoring & Reliability • Experience with Structured Streaming (Spark or ...

Fitch Group

Senior Software Engineer, AI (Chicago)

Chicago, IL · On-site

$126K - $166K/yr

Fitch Solutions is currently seeking a Senior Software Engineer, AI based out of our Chicago office ... Build robust production infrastructure - Develop enterprise-scale APIs (FastAPI) for deployment ...

FIS Amount

Senior AI Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

As an AI Software Engineer, you'll spend your days architecting and building AI-powered systems ... Proven track record designing and developing scalable APIs and distributed services (FastAPI ...

Optiver

Senior Production Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

Optiver is looking for an experienced Production Software Engineer with responsibilities for ... Experience with technologies such as Ansible, Django, FastAPI, Flask, Jenkins, Hashicorp Vault ...

Morningstar

Senior Software Engineer

Chicago, IL · On-site +1

$153K/yr

Architecting, optimizing and developing Python-based applications and APIs (FastAPI, Flask, RESTful services), including asynchronous programming and event-based architectures using cloud-native ...

Morningstar, Inc.

Senior Software Engineer

Chicago, IL · On-site

$153K/yr

Architecting, optimizing and developing Python-based applications and APIs (FastAPI, Flask, RESTful services), including asynchronous programming and event-based architectures using cloud-native ...

Fitch Group

AI Engineer

Chicago, IL · On-site

$57 - $73.50/hr

Fitch Solutions is currently seeking a Senior Software Engineer, AI based out of our Chicago office ... Build robust production infrastructure - Develop enterprise-scale APIs (FastAPI) for deployment ...

Fitch Solutions

AI Engineer

Chicago, IL · On-site

$57 - $73.50/hr

Fitch Solutions is currently seeking a Senior Software Engineer, AI based out of our Chicago office ... Build robust production infrastructure - Develop enterprise-scale APIs (FastAPI) for deployment ...

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Senior Fastapi Developer information

What does a Senior FastAPI Developer do?

A Senior FastAPI Developer designs, develops, and maintains backend web applications using the FastAPI framework in Python. They are responsible for building scalable APIs, optimizing performance, ensuring security best practices, and integrating with databases and external services. Senior developers also mentor junior team members, contribute to architecture decisions, and collaborate closely with front-end engineers and stakeholders to deliver robust software solutions.

What are some common challenges faced by Senior FastAPI Developers when scaling applications, and how can these be addressed?

Senior FastAPI Developers often encounter challenges related to managing high concurrency, optimizing API performance, and ensuring robust security as applications scale. To address these, it’s important to implement asynchronous programming practices, leverage efficient database queries, and utilize API gateways for better traffic management. Collaboration with DevOps and QA teams is also essential to automate deployments and monitor system health, ensuring smooth scaling and reliable user experiences.

What are the key skills and qualifications needed to thrive as a Senior FastAPI Developer, and why are they important?

To thrive as a Senior FastAPI Developer, you need deep expertise in Python, RESTful API design, and experience building scalable web backends, typically supported by a degree in computer science or related field. Familiarity with FastAPI, Docker, cloud platforms (such as AWS or Azure), and CI/CD tools is highly valued, along with proficiency in testing frameworks. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills enable the delivery of robust, efficient, and maintainable APIs that support business goals and high user demands.
What are the most commonly searched types of Fastapi Developer jobs in Illinois? The most popular types of Fastapi Developer jobs in Illinois are:
What are popular job titles related to Senior Fastapi Developer jobs in Illinois? For Senior Fastapi Developer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Senior Fastapi Developer jobs in Illinois look for? The top searched job categories for Senior Fastapi Developer jobs in Illinois are:
What cities in Illinois are hiring for Senior Fastapi Developer jobs? Cities in Illinois with the most Senior Fastapi Developer job openings:
Senior Fastapi Developer jobs near you
Infographic showing various Senior Fastapi Developer job openings in Illinois as of July 2026, with employment types broken down into 88% Full Time, 2% Part Time, 1% Temporary, and 9% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution.
Lead Backend Software Engineer

Lead Backend Software Engineer

Site Technologies

Remote

$185K - $215K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago

Job description

Job Type
Full-time
Description
About SITE Technologies:
SITE Technologies, founded in 2018, is on a mission to revolutionize facility management with cutting-edge AI solutions that empower enterprise customers to operate more efficiently.
We embrace a hybrid work culture, with remote and Chicago team members working seamlessly to deliver a great product to our customers. We believe in innovation, teamwork, and having fun along the way Our Core Values define how our team shows up every day:
  • Solve Impossible Problems
  • Embrace Empathy & Integrity
  • Own Your Outcome
  • Do The Best Work of Our Lives
  • Together We Thrive

If you're looking to be part of a collaborative, forward-thinking team where your work makes an impact, come join us!
Working at SITE Technologies:
SITE Technologies is seeking a hands-on Lead Backend Software Engineer to lead and grow a small backend team while personally building and evolving SITE's platform and related customer systems. This is a player-coach role: the Lead will directly manage 3 to 4 senior backend engineers, set technical direction, remain deeply involved in the architecture, implementation, quality, and operation of critical backend systems, and oversee nearshore engineers or consultants as the team evolves. The ideal candidate is a pragmatic, product-minded engineer and thoughtful people manager who can turn complex operational workflows and user needs into clear technical plans, reliable data models, stable API contracts, and delivered product outcomes. This person will partner closely with product managers, other technical teams, and business stakeholders to ship backend systems for geospatial data, imagery, asset workflows, reporting, third-party integrations, and AI product experiences.
Requirements
What you'll do:
  • Lead the technical design and hands-on implementation of core backend APIs and services, primarily in Python and FastAPI
  • Set architectural direction for domain models, relational schemas, service boundaries, data consistency, and API contracts
  • Translate product priorities into well-scoped delivery plans, milestones, and technical decisions
  • Personally lead critical-path development, code reviews, release planning, and incident response
  • Set and maintain high standards for testing, CI/CD, observability, security, performance, and production reliability
  • Build reliable integrations across geospatial, media, reporting, asset management, and third-party vendor systems
  • Develop and maintain ETL and data migration processes for imagery, geospatial, and operational data
  • Directly manage 3 to 4 senior backend engineers through regular one-on-ones, feedback, performance management, and career development, while overseeing nearshore engineers or consultants as needed
  • Delegate work effectively, remove delivery blockers, and ensure the team ships high-quality backend systems predictably
  • Partner with product, frontend, data, operations, and QA teams to prioritize tradeoffs and deliver customer value
  • Hire, onboard, mentor, and develop strong backend engineers

What We're Looking For:
  • 7+ years of experience in backend development, with strong proficiency in Python
  • Demonstrated experience as a hands-on technical lead while directly managing engineers
  • Very strong ability to reason from first principles about backend architecture, workflow modeling, API boundaries, data consistency, security, and operational failure modes
  • Strong product judgment and ability to turn ambiguous business needs into clear technical plans and deliverable milestones
  • Proven ability to mentor senior engineers, give direct feedback, and raise team performance
  • Strong communication skills and ability to lead across product, frontend, data, operations, and business teams
  • Experience building production APIs with FastAPI or similar Python frameworks
  • Strong understanding of relational data modeling, PostgreSQL, SQLAlchemy or comparable ORM libraries, and database migration tools such as Alembic or Flyway
  • Experience with AWS backend services such as ECS, Lambda, RDS, S3, IAM, and related services
  • Experience with Docker, Git, and designing and maintaining CI/CD pipelines with GitHub Actions, AWS CodePipeline, or similar tools
  • Practical fluency with AI coding agents such as Claude Code and Cursor

Exceptional candidates also have:
  • Experience working in a dynamic startup environment
  • Experience managing distributed teams or external engineering partners
  • Knowledge of infrastructure as code, preferably Terraform and Terragrunt
  • Experience with observability tools such as Datadog and Sentry
  • Experience designing authentication and authorization flows
  • Experience with 2D and 3D geospatial data
  • Experience with ETL pipeline development, data migration, or large-scale unstructured data processing
  • Experience building agentic systems with tools such as LangGraph, Claude Code SDK, and Amazon Bedrock
  • Experience modernizing legacy systems while preserving production behavior

What we have to offer:
  • This is a remote, US based position that can be based in one of 18 states where SITE is an employer.
  • A competitive base salary plus the opportunity to participate in SITE's stock options plan.
  • Generous paid vacation and separate sick time banks.
  • Ten (10) Company holidays off plus two (2) floating holidays.
  • Two (2) paid days per year to do volunteer work.
  • Paid parental leave benefits available after ninety (90) days of employment.
  • Employee health, dental, vision, life and short-term disability coverage at no cost available on the first of the month after your hire date.
  • 401K plan with a 4% employer safe harbor contribution.
  • A strong workplace culture with a smart, collaborative team.

More Reasons to join SITE Technologies:
  • Exciting Startup Energy - Be part of an early-stage company where your work truly makes a difference.
  • Collaborate with Brilliant Minds - Work alongside top talent in AI, tech, and business.
  • Professional Growth - Expand your skills and grow your career in an innovative company.
  • Great Culture - We value innovation, ownership, and having fun while making an impact.

Salary Description
$185,000 to $215,000

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