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1,532 senior python developer jobs at 503 companies in Illinois

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Senior GenAI/Python Engineer
Chicago, Illinois, United States
$90k-$130k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesBSE: 532540: Global leader in IT services, consulting, and business solutions.
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
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2mo
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Python Developer 6254661
Charlotte or Cleveland or California or Colorado or District of Columbia or Illinois or Maryland or Massachusetts or Minnesota or New York or New Jersey or Washington
$24-$72/hr OnsiteFull Time, Contract
Accenture
AccentureNYSE: ACN: Global professional services delivering 360° value.
5+ YOE5+ years Python development, 3+ years Oracle SQL and banking/finance domain experience. Proficiency with React JS, Django/Flask, UNIX/shell scripting, relational databases (Sybase/Oracle), Git/Mercurial/SVN, and strong unit testing and debugging skills. Associate's degree required.
React JS, Python, JS, Django, Flask, UNIX, shell scripting, SQL, Oracle, Sybase, Oracle SQL, ORM libraries, Git, Mercurial, SVN
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4w
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Team Lead, Python/Django Engineer
Westchester, Illinois, United States
$135k-$140k/yr RemoteFull Time
Follett Corporation
Follett Corporation: Private educational services provider and campus retailer serving college students, faculty, staff, parents, and fans.
7+ YOEBachelor's or equivalent, 7+ years software engineering with deep Python and Django expertise, strong PostgreSQL and enterprise integration experience, CI/CD and cloud proficiency, React familiarity, and excellent communication.
Python, Django, DRF, PostgreSQL, SQS, SNS, Celery, RESTful APIs, Git, CI/CD, Docker, Kubernetes, Azure, AWS, GCP, React, Claude Code, GitHub Copilot, PagerDuty, Datadog, Grafana, Shopify
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1mo
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Senior Software Engineer, Treasury (Ruby/Python)
Chicago, Illinois, United States
$175k-$275k/yr OnsiteFull Time
DRW
DRW: Global proprietary trading firm investing across diverse asset classes.
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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2mo
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Senior Software Developer - Python
Chicago or Greenwich
$200k-$250k/yr HybridFull Time
IBG Holdings LLC
IBG Holdings LLC: Private holding owning IBG membership interests and Interactive Brokers Group. Class B common stock.
5+ YOE5+ years software engineering experience (Python/C++/Java), 3+ years Python as primary language, experience with Polars/Pandas/NumPy, Linux (1-3 yrs), SQL and large codebases; Bachelor's degree in CS or related.
Python, C++, Java, Polars, Pandas, NumPy, Linux, SQL
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5d
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GenAI Python Systems Engineer – Senior Associate
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 Seattle 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 Fort Worth or Greensboro or Hartford or Houston or Indianapolis or Grand Rapids or Irvine or Jacksonville 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 City or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$77k-$202k/yr OnsiteFull Time
PwC
PwC: Global professional services network providing audit, tax, and consulting services.
3+ YOEBachelor's degree and 3+ years of experience required. Preferred fields include data science, AI, computer science, information systems, or engineering. Python, machine learning, NLP, and cloud or data platform credentials preferred.
Python, AWS, Google Cloud, Microsoft Azure, Databricks, Snowflake, machine learning libraries, NLP
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2mo
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Senior Product Software Engineer (Python)
San Francisco or Chicago or Los Angeles
$160k-$200k/yr HybridFull Time
Tyba
Tyba: Private software providing energy-storage simulation and operations tools to energy developers and operators.
5+ YOE5+ years full-stack engineering experience; strong Python and React; production GraphQL experience; willingness to learn ClojureScript; familiarity with AI-assisted coding tools; strong cross-functional communication.
Python, React, GraphQL, Strawberry, ClojureScript, Cursor, Copilot, Claude Code, Warp Agent Mode, Recharts, ECharts, dbt, Snowflake, Redshift, PyTorch, AWS, PostgreSQL, Fulcro, Tailwind CSS, Clojure, Kotlin
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1mo
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Senior Software Engineer (Python, Typescript) - Full Stack
Chicago, Illinois, United States
RemoteFull Time
Augintel
Augintel: Private U.S. SaaS providing AI-powered tools to help health and human services professionals analyze case notes.
5+ YOE5+ years experience, strong Python and TypeScript, AWS (ECS, OpenSearch, Lambda, S3), PostgreSQL/SQL, React and NodeJS, experience building scalable data pipelines and working with ML teams.
Python, TypeScript, AWS, ECS, OpenSearch, Lambda, S3, SQL, PostgreSQL, React, NodeJS
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1w
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Senior Lead Software Engineer, Back End (Go, Python, Java)
McLean or Chicago
$209k-$262k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: A technology-driven bank providing diverse financial services.
6+ YOE1+ MgmtBachelor's degree and 6+ years of professional software engineering experience required, including 1+ year of cloud computing. Preferred: 9+ years with Go, Python, or Java and 1+ year of people management.
Go, Python, Java, SQL, Node, Scala, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud, Open Source RDBMS, NoSQL, Agile
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1w
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Senior Lead Software Engineer, Back End (Go, Python, Java)
McLean or Chicago
$230k-$262k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: A technology-driven bank providing diverse financial services.
6+ YOE1+ MgmtBachelor's degree, 6+ years of professional software engineering experience, and 1+ year of cloud computing experience. Preferred: 9+ years with Go, Python, or Java and technical leadership or people management experience.
Go, Python, Java, SQL, Node, Scala, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud, RDBMS, NoSQL
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1w
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Senior Lead Software Engineer, Back End (Go, Python, Java)
McLean or Chicago
$209k-$262k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: A technology-driven bank providing diverse financial services.
6+ YOE1+ MgmtBachelor’s degree, 6+ years of professional software engineering experience, 1+ year of cloud computing experience, and expertise in backend development, microservices, and distributed systems.
Go, Python, Java, SQL, Node, Scala, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud, GCP, RDBMS, NoSQL, Agile
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3mo
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Senior Data Engineer
Chicago, Illinois, United States
$150k-$200k/yr OnsiteFull Time
Belvedere Trading
Belvedere Trading: Private proprietary trading firm market-making equity-index and commodity derivatives for financial markets.
Design and develop big data warehouses and ETL pipelines; strong SQL and Python; integrate data across systems; streaming tools; optimize BigQuery; strong communication.
SQL, Python, Kafka, Kinesis, Pulsar, Flink, Spark, BigQuery
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3w
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Senior IOS Developer
Chicago, Illinois, United States
$150k-$180k/yr HybridFull Time
NOCD
NOCD: Private telehealth provider delivering online ERP-based OCD treatment and support to people with obsessive-compulsive disorder.
6+ YOERequires 6+ years of professional iOS development, Swift and SwiftUI expertise, backend experience with Python or TypeScript, REST APIs, AWS, mobile architecture, testing, and release practices.
Swift, SwiftUI, Combine, Python, TypeScript, AWS, REST APIs, Lambda, S3, RDS, API Gateway, Objective-C, CI/CD
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1mo
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Senior Data Engineer
Chicago or Peoria
$113k-$183k/yr OnsiteFull Time
Caterpillar Inc.
Caterpillar Inc.NYSE: CAT: Global manufacturer of construction and mining equipment and engines.
Extensive Python development, OOP, CI/CD and Git experience; knowledge of AWS services, relational/NoSQL databases, software development lifecycle, testing, decision-making and effective communication.
Python, Git, Jenkins, GitHub Actions, Azure Devops, CI/CD, Bedrock, Lambda, Dynamo, Fargate, S3, Sagemaker, IAM, RDS, DynamoDB, PostgreSQL, MongoDB, Oracle
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1mo
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Senior Developer - IT
Arlington Heights, Illinois, United States
$112k-$147k/yr OnsiteFull Time
United Airlines
United AirlinesNASDAQ: UAL: A major U.S. airline providing global passenger and cargo transport.
4+ YOEBachelor's in CS/CE/EE/MIS,4+ years software development experience, AWS and backend API experience (Java/Node/Python), CI/CD, Kubernetes, Git, cloud platforms, Agile, strong communication; must be authorized to work in the US.
AWS Lambda, AWS Step Functions, Amazon CloudWatch, Amazon CloudFront, Amazon Cognito, Amazon Route 53, Amazon DynamoDB, Amazon ECS, Amazon EC2, Amazon S3, Amazon RDS, Amazon RDS - Aurora Postgres, Active MQ, Secrets Manager, Parameter Store, Amazon EFS, Git, Python, Bash, PowerShell, Node.js, Java, Springboot, Angular 15, Github, Harness, Artifactory, Kubernetes, Microsoft .Net Framework, Microsoft .Net Core, SQL, NoSQL, JSON, XML, OAuth, Claude, Agentic AI, CoPilot, AWS, Azure, GCP, Jira, Confluence, Microsoft Azure DevOps
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1mo
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Senior Data Engineer
Peoria or Chicago
$113k-$183k/yr OnsiteFull Time
Caterpillar Inc.
Caterpillar Inc.NYSE: CAT: Global manufacturer of construction and mining equipment and engines.
Extensive software development experience with Python, OOP, CI/CD, Git, AWS services, and relational/noSQL databases; strong decision-making and communication skills.
Python, Git, Jenkins, GitHub Actions, Azure DevOps, Bedrock, Lambda, Dynamo, Fargate, S3, Sagemaker, IAM, RDS, PostgreSQL, DynamoDB, MongoDB, Oracle
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Senior Software Engineer
Menlo Park or New York City or Bellevue or Washington or Denver or Westlake or Chicago or Lake Mary or Clearwater or Gainesville
HybridFull Time
Robinhood
RobinhoodNASDAQ: HOOD: Provides brokerage, crypto, advisory, and banking services.
5+ YOERequires 5+ years of software engineering experience, strong Python or Go coding skills, distributed systems expertise, and experience with load testing, fault injection, chaos engineering, or developer infrastructure.
Python, Go, Kubernetes, CI/CD
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1mo
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Senior Software Engineer
Westchester, Illinois, United States
$99k-$124k/yr RemoteFull Time
RB Global
RB GlobalNYSE: RBA: Omnichannel marketplace for commercial assets and vehicles.
10+ YOEBachelor's in CS/IT, 10+ years software development with backend Java experience; proficiency in Python/Go, Spring Framework, cloud platforms, containerization, relational databases, CI/CD, and strong communication.
Java, Python, Go, Spring Framework, Spring Boot, Spring Data, Spring Security, MySQL, PostgreSQL, AWS, Azure, GCP, Docker, Kubernetes, React, Angular
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3w
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Senior Software Engineer/Full Stack Developer
Denver or Naperville
HybridFull Time
PTMA Financial Solutions
PTMA Financial Solutions: Private financial services firm providing treasury management and investment advisory solutions to public entities and financial institutions.
7+ YOEBachelor's degree or equivalent professional experience, 7+ years of experience, and expertise in Java, node.js, SQL, Python, web technologies, relational databases, and collaborative software development.
Java, node.js, SQL, Python, HTTP, JSON, Web Sockets, ClaudeCode, CoPilot for git, Unix, Microsoft SQL Server, PostgreSQL, Azure SQL, Oracle, DevOps
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1mo
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Senior Software Engineer
Chicago or United States
RemoteFull Time
DomainTools
DomainTools: DNS threat-intelligence helping enterprises, governments, and security platforms detect and investigate online threats.
5+ YOE5+ years professional development with Python/Rust/Go, 3+ years with AWS/Docker/Kubernetes, Kafka, OpenSearch/Postgres/CockroachDB/Spark, Linux/Unix; strong communication and cross-team coordination.
Python, GoLang, Rust, AWS, Docker, Kubernetes, OpenSearch, Postgres, CockroachDB, Spark, Kafka, Linux, ElasticSearch, NATS, Apache Airflow, Bash, Scala, C, Hive
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