2,543 python developer jobs at 710 companies in Illinois

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
2w
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Predoctoral Appointee – Python Developer
Lemont, Illinois, United States
$58k-$97k/yr OnsiteFull Time, Temporary
Argonne National Laboratory
Argonne National Laboratory: Federally funded U.S. Department of Energy research laboratory conducting basic and applied science and engineering for national priorities.
Recent or soon-to-be completed master's degree and Python development experience. Requires database, SQL, web automation, testing, communication, problem-solving, and collaborative research skills.
Python, TensorFlow, PyTorch, Claude, ChatGPT, MongoDB, SQLite, XML, JSON, SQL, Selenium, pytest, unittest/pyunit, Matplotlib, MATLAB, Git, SVN, JIRA, NumPy, Pandas, Tkinter, Django, Flask
3w
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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
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
4d
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GenAI Python Systems Engineer – Experienced Associate
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rochester or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or San Juan or Seattle or Spartanburg or Albany or Stamford or Tampa 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 Grand Rapids or Indianapolis or Irvine or Jacksonville or Kansas City or Little Rock or Los Angeles or Birmingham or Fayetteville or Melville 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
$63k-$140k/yr HybridFull Time
PwC
PwC: Global professional services network providing audit, tax, and consulting services.
1+ YOEBachelor's degree and at least 1 year of experience required. Proficiency in Python and Scikit-Learn, AI implementation, data analysis and modeling, and machine learning solution development preferred.
Python, Scikit-Learn, AWS, Google Cloud, Microsoft Azure, Databricks, Snowflake
3mo
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Quantitative Developer - Python
Chicago, Illinois, United States
$200k-$225k/yr OnsiteFull Time
IMC
IMCNYSE American: IMC: Global proprietary trading firm and technology-driven liquidity provider.
5+ YOE3-7 years of quantitative software development; strong Python experience; knowledge of time series, backtesting, and ML for systematic strategies; low-latency systems preferred; ability to work across research and engineering.
Python, Pandas, Polars, Time Series, Backtesting, Machine Learning
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
2w
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Software Engineer - Python, Business Operations
Chicago, Illinois, United States
$145k/yr OnsiteFull Time
Akuna Capital
Akuna Capital: Proprietary trading firm providing options-market liquidity through advanced technology, strategic trading, and quantitative research.
3+ YOEBachelor's degree or equivalent experience; 3–5 years software development; Python, SQL, PostgreSQL, REST APIs, integrations, Git, AI/LLM APIs, and independent cross-functional project experience.
Python, SQL, PostgreSQL, Jira, NetSuite, Device42, Bitbucket, MCP (Model Context Protocol), Confluence, REST APIs, Anthropic, OpenAI, Git, Jira/JSM, SuiteScript, SuiteTalk, Atlassian Bitbucket/Git, LLM/AI APIs
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
4d
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Product Engineer, Python AI, Consultant - Remote
Illinois, United States
$70k-$121k/yr RemoteFull Time
Allstate
AllstateNYSE: ALL: A leading provider of insurance and protection solutions.
2+ YOERequires 2+ years of Python software engineering, 1+ year of AI experience, vector databases, scalable AI deployment, Azure, CI/CD, distributed systems, cloud-native architectures, and Agile development.
Python, Microsoft Azure, CI/CD, Large Language Models (LLMs), vector databases, Python IDLE, Shell Programming, Shell Scripting, Software Development Life Cycle (SDLC)
2mo
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Software Engineer III- Python, Databricks
Jersey City or Chicago
$133k-$185k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services and investment banking firm.
2+ YOEExperience with Python (3+ years preferred), Java (2+ years), big data technologies (2+ years; e.g., AWS, Spark, Kafka, Databricks), SQL, UNIX shell scripting, ETL implementation, data architecture and strong analytical and communication skills.
Python, Databricks, AWS, Spark, Kafka, Java, SQL, UNIX shell scripting, Oracle, SQL Server, MongoDB, AWS Open Search
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
1mo
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Lead Data Engineer, (Python, AWS)
Chicago, Illinois, United States
$179k-$205k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: A technology-driven bank providing diverse financial services.
4+ YOEBachelor's degree, 4+ years of application development, 2+ years of big data technologies, and 1+ year of cloud computing experience. Python, SQL, Scala, or Java experience preferred.
Java, Scala, Python, SQL, Redshift, Snowflake, MapReduce, Hadoop, Hive, EMR, Kafka, Spark, Gurobi, MySQL, Mongo, Cassandra, UNIX, Linux, AWS, Microsoft Azure, Google Cloud, Agile
1mo
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Automation Engineer - Python, Selenium, Playwright
Chicago or Illinois or Indiana or Kentucky or Michigan or Wisconsin or Ohio or Louisiana
$63k-$139k/yr OnsiteFull Time
CGI
CGITSX: GIB.A: Global IT consulting and business services firm.
4+ YOE4+ years automation/QA experience; strong Python, Playwright, Selenium, SQL, API testing, framework development, CI/CD integration, Agile experience, and ability to work independently.
Python, Selenium, Playwright, SQL, CI/CD
1mo
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Lead Data Engineer, (Python, AWS)
Chicago, Illinois, United States
$179k-$205k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: A technology-driven bank providing diverse financial services.
4+ YOEBachelor's degree, 4+ years application development, 2+ years big data, 1+ year cloud experience; proficiency with Python/Java/Scala, distributed data tools, data warehousing, and UNIX.
Java, Scala, Python, SQL, Redshift, Snowflake, MapReduce, Hadoop, Hive, EMR, Kafka, Spark, Gurobi, MySQL, Mongo, Cassandra, UNIX, AWS, Microsoft Azure, Google Cloud
1mo
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Software Engineer (C++ or Python) – 2027 Grads
New York City or London or Singapore or Austin or Chicago
$300k/yr OnsiteFull Time
Hudson River Trading
Hudson River Trading: Private quantitative trading firm providing liquidity across global markets and directly to financial-market clients.
BS/MS in CS or related; proficient in C/C++ or Python, strong CS fundamentals, Linux/UNIX knowledge, excellent debugging and problem-solving, eligible for full-time roles in 2027.
C/C++, Python, UNIX, Linux
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
1mo
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Software Engineer (C++ or Python) – 2027 Grads
Austin or Chicago or London or New York City or Singapore
$300k/yr OnsiteFull Time
Hudson River Trading
Hudson River Trading: Private quantitative trading firm providing liquidity across global markets and directly to financial-market clients.
Full-time undergraduate or master's student in computer science or a related field, eligible for 2027 full-time roles, with C/C++ or Python experience and strong design, debugging, problem-solving, and computer science fundamentals.
C, C++, Python, UNIX, Linux
1mo
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Lead Data Engineer, (Python, AWS)
Chicago, Illinois, United States
$179k-$205k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: A technology-driven bank providing diverse financial services.
4+ YOEBachelor's degree, 4+ years of application development, 2+ years of big data technologies, and 1+ year of cloud computing experience. Preferred expertise includes Python, SQL, Scala, Java, AWS, and distributed data tools.
Java, Scala, Python, SQL, Redshift, Snowflake, MapReduce, Hadoop, Hive, EMR, Kafka, Spark, Gurobi, MySQL, Mongo, Cassandra, UNIX, Linux, AWS, Microsoft Azure, Google Cloud
3mo
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Senior Scala/Python Engineer (Hybrid)
Chicago, Illinois, United States
$130k-$170k/yr HybridFull Time
Rewards Network
Rewards Network: Private fintech helping restaurants grow through loyalty marketing, rewards, insights, and flexible funding.
7+ YOE7+ years back-end dev, 3+ years functional programming; Scala or similar; Kafka; PostgreSQL; REST/microservices; CI/CD; security; leadership potential.
Scala, Python, Cats Effect, Kafka, PostgreSQL, Docker, Kubernetes, Typelevel, REST APIs