326 junior python developer jobs at 148 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
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
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
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 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
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
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++
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
1w
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Graduate Developer
Farmington Hills or Rosemont or Pennsylvania or Houston or Dallas or Golden
HybridFull Time
GHD
GHD: Global professional services firm specializing in engineering and architecture.
0+ YOEBachelor's degree required, 0-2 years developer experience, proficiency in JavaScript and Python, front- or back-end development, data visualization and manipulation skills.
Javascript, Python, Earth Volumetric Studio
2d
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Software Development Engineer
Illinois or Mississippi or Montana or North Carolina or Louisiana or Maryland or Maine or Minnesota or Nebraska or Missouri or North Dakota or New York or New Jersey or New Mexico or Nevada or Ohio or South Carolina or Texas or Rhode Island or South Dakota or Vermont or Tennessee or Virginia or Washington or Utah or Wisconsin or West Virginia or Oregon or Wyoming or Oklahoma or Pennsylvania or Colorado or Alabama or Arizona or California or Connecticut or District of Columbia or Florida or Iowa or Arkansas or Idaho or Kansas or Delaware or Georgia or Indiana or Kentucky or Michigan or Massachusetts or New Hampshire
$65k-$173k/yr RemoteFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
2+ YOE2+ years systems analysis and application development; 1+ year development in Java/C++/Python; Agile experience; 1+ year with AI/generative AI, Confluent Kafka, and LLMs such as Gemina or Claude.
Java, C++, Python, Confluent Kafka, Gemina, Claude
1mo
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Senior Software Engineer
Chicago or United States
$113k-$183k/yr RemoteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
1+ YOEMaster's in Computer Science or related and 1 year experience developing backend/service-layer software. Requires Java, Python, PostgreSQL, MongoDB, TDD practices, and Agile development experience.
Java, PostgreSQL, MongoDB, Python
1mo
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AI Solutions Developer
Illinois or Washington or Florida or New York or Colorado or New Jersey or Massachusetts or Maryland or Georgia or Tennessee or California
$70k-$80k/yr RemoteFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
1+ YOE1+ years of hands-on AI development or implementation, bachelor\u0002s degree in computer science/business or related field, experience with LLMs and Salesforce integrations, familiarity with Python and analytics tools.
LLMs, Gemini, Agentforce, Salesforce, Einstein, Tableau, Snowflake, Moveworks, Cloverleaf, Python, Google AppScript
3w
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Full Stack Engineer
Schaumburg, Illinois, United States
$115k-$130k/yr HybridFull Time
DataDelivers
DataDelivers: Customer data platform for the restaurant industry.
2+ YOE2+ years full stack development experience with React, Python, SQL and AWS; ability to read and improve existing codebase, consume/develop REST APIs, and work in a hybrid team environment.
React, Python, SQL, AWS, Athena, S3, DynamoDB, API Gateway, Amplify, CloudFront, Git, TypeScript, REST, Jira
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
1w
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AI Engineer
San Francisco or Seattle or Dallas or Austin or Chicago or Atlanta or New York or San Diego
$100k-$120k/yr HybridFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
1+ YOE1-3 years software development experience, bachelor's in CS/AI/data science, proficiency with AI/LLM APIs and frameworks, Python and JavaScript/TypeScript skills, Git and CI/CD experience, Docker/Podman familiarity.
Python, TypeScript, JavaScript, LangChain, LangGraph, CrewAI, PydanticAI, Model Context Protocol (MCP), Anthropic Claude API, OpenAI API, OpenAI Codex, Claude, Cursor, GitHub, GitHub Copilot, SQL, Docker, Podman, React, HTML, CSS, FastAPI, Flask, Express, Pinecone, Weaviate, pgvector, Microsoft Azure, Microsoft Fabric, Google Cloud, Amazon Web Services, Power BI
1mo
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Mid Software Developer
O'Fallon, Illinois, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
2+ YOEMinimum 2 years relevant experience (or HS/GED +6 yrs); experience with AWS (S3, EC2, Lambda), Python, shell scripting, TypeScript, Node.js/Express, ASP.NET Core, C#, Postgres, Kubernetes, Docker, .NET Core, Linux, React, Java, and SQL; AWS Developer certification and TS/SCI clearance preferred; must pass background and drug screening.
Amazon S3, EC2, Lambda, AWS SDK API tools, RDS, Python, Python Flask, Bash, TypeScript, Node.js/Express, ASP.NET Core Web API, Swagger (OpenAPI), C#, Postgres, Kubernetes, Docker, .NET Core, Linux, React, JavaScript, Java, SQL, Gitlab/DevOps, ESRI, Microsoft Word, Microsoft Excel, Microsoft Office
3w
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Software Engineer - SMB (Hybrid)
Chicago, Illinois, United States
$68k-$110k/yr HybridFull Time
Enova International
Enova InternationalNYSE: ENVA: Provides digital lending and credit solutions through machine learning.
2+ YOE2+ years professional software development experience with Java, Python, or Go; frontend experience with TypeScript and React; strong SQL and API/microservices experience; bachelor’s degree or equivalent; willingness to join on-call rotation.
Java, Python, Go, TypeScript, React, SQL, Docker, Kubernetes, AWS, Terraform, GitHub
1mo
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Research Developer – New Grad
Amsterdam or Chicago or London or New York City
OnsiteFull Time
Headlands Technologies
Headlands Technologies: A global proprietary trading firm utilizing quantitative algorithms.
Degree in a technical field required; strong statistics and ML experience; software development skills in Java, C++, or Python; interest in systematic trading; internship experience preferred; collaborative and results-focused.
Java, C++, Python
1w
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Software Developer
Chicago, Illinois, United States
$225k/yr OnsiteFull Time
DRW
DRW: Technology-driven principal trading firm operating in global financial markets
Degree in CS/Math/Physics or related expected by June 2027; proficiency in C++, Java or Python; experience with multi-threading, network programming (TCP/IP), API design, data processing, and algorithms.
C++, Java, Python, TCP/IP
3w
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Software Engineer II
California or Florida or Georgia or Illinois or Indiana or Minnesota or Montana or North Carolina or New Hampshire or New Jersey or New York or Ohio or Oregon or Pennsylvania or Virginia
$75k-$125k/yr RemoteFull Time
Vitu
Vitu: Digitizes vehicle titling and registration for businesses and governments.
2+ YOEBachelor's in CS or equivalent, Scrum Developer certification, 2+ years experience building scalable web applications across front-end and back-end stacks; proficiency with HTML, CSS, JavaScript, PHP/Python/Ruby/C#, and SQL Server; agile experience.
HTML, CSS, JavaScript, PHP, Python, Ruby, C#, SQL Server