539 junior python jobs at 242 companies in Illinois

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
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Junior Software Engineer
Chicago, Illinois, United States
OnsiteFull Time
TransMarket Group
TransMarket Group: A global proprietary trading firm utilizing automated technology.
Bachelor’s degree in a quantitative or technical field; programming in C++/Python; interest in finance; strong math and communication; onsite.
C++, Python, Linux scripting
2mo
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Junior Software Engineer
Chicago, Illinois, United States
$80k-$100k/yr OnsiteFull Time
Supernova Technology
Supernova Technology: Provides cloud-based digital software for securities-based lending.
Entry-level software engineer; learn SDLC, backend, coding; BS in CS or related field or equivalent practical experience; Java/C/C++, JavaScript; Java Spring Framework; handling high-priority requests; startup adaptability.
Java, C/C++, JavaScript, Python, Spring Framework, Spring Boot
2mo
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Junior Software Engineer (C++ & AI-Assisted Development)
Chicago, Illinois, United States
OnsiteFull Time
SG Cap Trading
SG Cap Trading: Proprietary trading firm developing automated trading software and systems.
1+ YOE1-2 years C++ experience; AI tooling experience; problem solving; BS in CS/CE or equivalent; Python is a plus; Git/IDE tooling; interest in local LLMs.
C++, Python, Git, CLion, VSCode, CI/CD, Local LLMs
1mo
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Junior Floor Trader
Chicago or London
$150k-$190k/yr OnsiteFull Time
Maven Securities
Maven Securities: Proprietary trading firm specializing in quantitative and systematic strategies.
0+ YOE0-2 years options market making experience preferred; strong Python and Excel skills; quick decision-making, numerical and analytical ability, excellent communication and teamwork.
Python, Microsoft Excel
1mo
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Junior Quantitative Analyst
Austin or Chicago or New York or Old Greenwich or San Francisco or West Palm Beach
$150k/yr OnsiteFull Time
WorldQuant
WorldQuant: Develops systematic investment strategies through quantitative research and data.
Undergraduate or advanced degree in a quantitative field; programming in Python and/or C++; Linux experience; strong problem-solving and quantitative skills; interest in financial data, machine learning, and data engineering.
Python, C++, Linux
1w
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Software Engineer (Entry-Level) - Python
Chicago, Illinois, United States
$145k/yr OnsiteFull Time
Akuna Capital
Akuna Capital: Proprietary trading firm providing liquidity in global options markets.
Pursuing a technical bachelor’s/masters/PhD graduating by Aug 2027 with 3.5+ major GPA, legal U.S. work authorization on day one (OPT/STEM accepted), strong Object-Oriented Python and distributed systems skills, and strong communication.
Python
2w
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Junior Security Analyst
Chicago, Illinois, United States
$24-$31/hr HybridFull Time
University of Chicago
University of Chicago: Provides higher education and conducts academic research.
0+ YOEEntry-level information security role supporting operations, vulnerability management, incident response, basic Python scripting, and log analysis; vocational training or equivalent and <2 years related experience.
Python
3d
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Junior FPGA Engineer
Chicago, Illinois, United States
$150k/yr HybridFull Time
Eagle Seven
Eagle Seven: Proprietary firm executing algorithmic trading on global exchanges.
1+ YOEBachelor's in EE/CE/CS,1-3 years relevant experience, strong SystemVerilog/Verilog skills, ModelSim simulation experience, Python proficiency, familiarity with FPGA flows and high-speed interfaces.
SystemVerilog, Verilog, ModelSim, Questa, Vivado Simulator, Python, PCIe, Ethernet, DDR, Xilinx/AMD Vivado, Intel/Altera Quartus
1mo
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Junior Data Scientist
Chicago or Austin or Denver or Washington or Atlanta or Boston or United States
$115k-$135k/yr RemoteFull Time
Cushman & Wakefield
Cushman & WakefieldNYSE: CWK: Global commercial real estate and property services firm.
2+ YOEBachelor's in a quantitative field, 2+ years experience in research/analytics/data science (real estate preferred), proficiency in Python/R and SQL, geospatial and econometric methods, working knowledge of cloud platforms.
Python, R, SQL, ArcGIS, QGIS, ACS, TIGER, LODES, BLS, IPUMS, NLCD, Overture Maps, Azure, AWS
1mo
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Junior Floor Trader
Chicago or London
$150k-$190k/yr OnsiteFull Time
Maven Securities
Maven Securities: Proprietary trading firm providing liquidity in global financial markets.
0+ YOE0-2 years options market making experience; strong Python and Excel, numerical and analytical skills, quick decision-making, teamwork and communication, interest in financial markets.
Python, Microsoft Excel
3w
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Junior Risk Analyst
Downers Grove, Illinois, United States
$85k-$105k/yr HybridFull Time
Invesco
InvescoNYSE: IVZ: Provides diversified investment management services and financial products globally.
1+ YOE1+ years relevant experience in investment risk, performance/attribution, or portfolio analytics; strong Python and quantitative skills; experience with risk/performance systems; bachelor’s degree in a quantitative field; progress toward CFA/CIPM/FRM desirable.
Python, SQL, FactSet, MSCI Risk Metrics
3w
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Junior FPGA Developer
Chicago, Illinois, United States
$100k-$175k/yr OnsiteFull Time
Edgehog Trading
Edgehog Trading: Proprietary firm specializing in systematic electronic options market-making.
BS/MS in EE/CE or related field, hands-on RTL design in Verilog/SystemVerilog, familiarity with ModelSim/QuestaSim/Vivado/Quartus and synthesis flow, Linux proficiency, Python/C/C++ a plus, eagerness to apply AI tools and learn HFT.
Verilog, SystemVerilog, ModelSim, QuestaSim, Vivado, Quartus, Linux, Python, C, C++
1w
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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: A quantitative firm using technology to trade global financial markets.
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
2w
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Junior AI/ML Engineer
Lisle, Illinois, United States
$76k-$114k/yr OnsiteFull Time
International Motors
International Motors: Manufacturer of commercial trucks, buses, and diesel engines.
0+ YOEBachelor's degree (or pursuing) accepted with no experience OR 2+ years software engineering; experience with Python, Pandas, Scikit-learn, SQL, Databricks, Dataiku, and Azure; foundational ML knowledge and strong teamwork and learning ability.
Python, Pandas, Scikit-learn, SQL, Databricks, Dataiku, Azure
1mo
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Junior Database Administrator - Fuze Services
United States or Alabama or Arizona or Arkansas or California or Colorado or Connecticut or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Vermont or Virginia or Washington or Wisconsin
$77k-$97k/yr RemoteFull Time
Fuze Health
Fuze Health: Integrated digital health, home diagnostics, and virtual pharmacy platform.
1+ YOE1–3 years DBA or database support experience; hands-on with Microsoft SQL Server 2019+, AWS (RDS, Lambda, CloudWatch), T-SQL, Python, PowerShell; production environment experience, rotating on-call participation, and compliance familiarity (HIPAA, HITRUST, SOC2).
Microsoft SQL Server 2019, SQL Server, T-SQL, AWS RDS, AWS Lambda, State Machines, CloudWatch, CloudWatch DMVs, Python, PowerShell, GitHub Action workflows, Datadog, Terraform
4d
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FedRAMP Cybersecurity Analyst (Junior) US Remote
Illinois or Minnesota or Mississippi or Missouri or Montana or Nebraska or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or North Dakota or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or South Dakota or Tennessee or Texas or Utah or Vermont or Virginia or Washington or West Virginia or Wisconsin or Wyoming or Alabama or Alaska or Arizona or Arkansas or California or California or Colorado or Connecticut or Delaware or District of Columbia or Florida or Massachusetts or Georgia or Idaho or Indiana or Iowa or Kansas or Kentucky or Louisiana or Maine or Maryland or Michigan
$75k-$85k/yr RemoteFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
1+ YOEUS citizen able to obtain clearance, High School and Bachelor's degree, obtain A2LA R311 FedRAMP certification within 3 months, scripting (Python/PowerShell/Bash), FedRAMP/FISMA/NIST knowledge, vulnerability scanning, 10-25% travel.
Nessus, ACAS, SCC, DISA STIGs, STIG Viewer, DB Protect, Acunetix, Python, PowerShell, Bash
3d
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Cloud System Admin 1 (Junior)
Scott Air Force Base, Illinois, United States
HybridFull Time
UNCOMN
UNCOMN: A technology services delivering secure cloud and IT solutions to public and private sector clients.
Meet DoD Cyber Workforce Framework 8140 Work Role 641, obtain CompTIA Security+ and cloud certification within 30 days, eligible for Secret clearance, Linux administration experience, strong written/verbal communication.
SAML, OAuth, AWS, Azure GovCloud, Linux, Terraform, CI/CD, Java, Python, Ruby, Bicep, ARM templates
1w
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Junior Architect / Senior Data Engineer - Remote
Schaumburg or Minneapolis or Washington or Springfield or United States
$92k-$164k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
5+ YOEHands-on experience with Azure Data Factory, Databricks/PySpark, Synapse/Fabric, T-SQL and Python; strong data warehouse, ETL, CI/CD, monitoring and migration skills; willing to travel ~10%.
Azure Data Factory, Azure Synapse Analytics, Databricks, Microsoft Fabric, Azure Data Lake Storage Gen2, Delta Lake, Parquet, PySpark, T-SQL, Spark SQL, KQL, PowerShell, Bash, Azure Key Vault, Azure AD, Entra ID, Azure Monitor, Log Analytics, Azure DevOps, ARM, Bicep, Terraform, Synapse Dedicated SQL Pool, Azure SQL, Teradata, Snowflake, Informatica PowerCenter, Unity Catalog, OneLake, pandas, pytest
4d
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Internship - Quantitative Trading
Austin or Chicago or New York City
$5k-$6k/wk OnsiteInternship
Virtu Financial
Virtu FinancialNYSE: VIRT: Provides liquidity and trading technology to global financial markets.
Rising-junior college students for a 10-week internship; strong quantitative background (physics, engineering, math, statistics), outstanding problem-solving, and some programming experience (Python, SQL, Java, C++).
Python, SQL, Java, C++
1w
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Software Engineer – 2027 Internship Program (June Start)
Chicago, Illinois, United States
$150k-$200k/yr OnsiteInternship
Old Mission
Old Mission: Quantitative proprietary trading firm specializing in global market making.
Currently pursuing Bachelors or Masters in CS/CE or similar, 3.0+ GPA, junior standing with graduation Dec 2027 or May 2028, comfortable with C++, Python or TypeScript, strong CS fundamentals, able to start June 1, 2027.
C++, Python, TypeScript