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Junior Python Developer Jobs in Illinois, United States

270+ junior python developer jobs from 200+ companies hiring in Illinois, United States.

All jobs in Illinois, United StatesJunior Python Developer Jobs in United States
Cities:Chicago·Aurora·Rockford·Joliet·Naperville·Springfield·Peoria·North Peoria·Elgin·Waukegan·West Town·Champaign·Near North Side·Cicero·Belmont Cragin·Bloomington·Arlington Heights·Evanston·Schaumburg·Bolingbrook
272 jobs- Illinois
2w
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Junior AI Developer
United States
RemotePart Time
Future Technologies
Future Technologies: Provides technical engineering and mission support for defense systems.
Part-time junior AI developer with Python/C++. Knowledge of AWS ML services and basic ML concepts; eager to learn low-level AI optimization.
Python, C/C++, AWS, SageMaker, EC2, EKS, Lambda, Bedrock, S3, CUDA, AWS Neuron, CloudWatch, X-Ray, PyTorch, TensorFlow, JAX
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6d
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Junior Quantitative Developer
New York or Chicago
$125k-$185k/yr OnsiteFull Time
Harbor Capital Advisors
Harbor Capital Advisors: Provides active asset management and fund administration services.
0+ YOEBachelor’s degree in a quantitative/technical field; 0–3 years software/quantitative experience; strong Python; SQL/PostgreSQL; production engineering; interest in financial markets.
Python, SQL, PostgreSQL, Git, CI/CD, Data pipelines, ETL
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19h
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Health Python Programmer - Junior
United States
$70k-$104k/yr RemoteFull Time
LMI
LMI: Delivers management, technology, and analytics solutions for federal agencies.
2+ YOEBachelor's in CS/Software Engineering; 2+ years Python; SQL/NoSQL; Git; Agile; unit/integration testing.
PySpark, Pandas, NumPy, Polars, SQL, NoSQL, Git, Snowflake
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1mo
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Junior Software Engineer
Chicago, Illinois, United States
$80k-$130k/yr OnsiteFull Time
Geneva Trading
Geneva Trading: Global proprietary trading firm specializing in listed derivatives markets.
BS/MS in Computer Science/Engineering; strong OS and systems programming; proficient in C++ and Python; deep knowledge of Linux internals; collaborate with Traders and Quants.
C++, Python, Linux, Operating Systems, Kernel Bypass, CPU affinity, Memory management
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2mo
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Junior Software Engineer – Scientific Computing (C++)
United States
$80k-$120k/yr RemoteFull Time
Axle Informatics
Axle Informatics: Provides bioscience and IT solutions for biomedical research.
1+ YOE1–3 years software development; strong C++ skills; experience with LLM-based tools; Linux experience; Python scripting; collaborative, fast-moving environment.
C++, Linux, Python, LLM tools, GitHub Copilot, Claude, GPT-4, OpenAI, Cursor
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1mo
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Junior Quantitative Latency Engineer
Chicago or Austin or London or New York City or Singapore
$200k-$300k/yr HybridFull Time
Hudson River Trading
Hudson River Trading: A quantitative firm using technology to trade global financial markets.
0+ YOEProficiency in Python and Pandas; strong data analytics; technical degree or equivalent; quick learner; cross-functional collaboration.
Python, Pandas, Data Analysis Tools
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2mo
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Junior QA Engineer
United States
RemoteFull Time
Teak
Teak: Provides refund protection and checkout flexibility for live events.
0+ YOEEntry-level QA role requiring basic testing knowledge, strong documentation, and willingness to learn.
Playwright, Python, Typescript, JIRA, TestRail
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2mo
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Junior Data Engineer
United States
RemoteFull Time
Cyntegrity
Cyntegrity: AI-driven risk management software for clinical trial quality monitoring.
1+ YOEEntry-level data engineer with 1+ years programming experience; Python/.NET C#/JavaScript; data analysis; JSON/XML/CSV; SQL/MongoDB; ETL; CDISC; CFR 21 Part 11; Docker; Linux; Azure; strong communication.
Python, C#, JavaScript, JSON, XML, CSV, SQL, MongoDB, ETL, CDISC, CFR 21 Part 11, Docker, Linux, Azure
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23h
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Junior AI Developer
United States
RemoteFull Time
BenGen
BenGen: Venture studio developing and operating digital marketing and MarTech companies.
0+ YOEEntry-level position requiring a bachelor’s or master’s in CS/Data Science/AI; strong Python with PyTorch/TensorFlow/JAX; familiarity with LLMs, RAG, and fine-tuning; problem-solving and action-oriented mindset.
Python, PyTorch, TensorFlow, JAX
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1mo
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JUNIOR INFRASTRUCTURE ENGINEER
Aurora, Illinois, United States
$80k-$120k/yr HybridFull Time
XR Trading
XR Trading: Provides liquidity in global financial markets using proprietary technology.
0+ YOEEarly-career infra engineer with TCP/IP, routing, troubleshooting, and scripting; onsite in Aurora, IL; CCNA preferred.
TCP/IP, Networking, Wireshark, tcpdump, Python, CCNA
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2w
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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 experience in C++ and Python; strong math/finance knowledge; onsite only; excellent communication.
C++, Python, Linux
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3w
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Junior Full Stack Developer
Schaumburg, Illinois, United States
$64k-$111k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
Bachelor’s degree in CS/Information Systems or related field; experience with server-side languages; proficient in C#, Java, NodeJS or Python; HTML/CSS/JavaScript; .NET; SQL Server/MySQL; problem-solving; good communication; version control; eager to learn.
NodeJS, .NET, SQL Server, HTML, CSS, JavaScript, Python, React, Angular, Microsoft Power Platform
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4d
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Third Sector Intelligence, Inc. - Junior Data Engineer
United States
$90k-$105k/yr RemoteFull Time
Third Sector Intelligence (3Si)
Third Sector Intelligence (3Si): Data analytics platform for early childhood social programs.
1+ YOE1-3 years experience in data engineering or related role; strong Python and SQL; cloud experience; ETL, data modeling; unit testing; good communication; able to work in agile teams.
Python, SQL, Cloud, Workflow orchestration, ETL, Data modeling, Unit testing
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1mo
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Junior Vulnerability Automation Engineer
United States
RemoteFull Time
Flashpoint
Flashpoint: Provides actionable threat intelligence and risk mitigation software.
0+ YOEEntry-level candidate with CS fundamentals; experience with Python; interest in web scraping; ability to work with distributed data systems; strong analytical and problem-solving skills.
Python, Git, Apache Airflow, NiFi, PostgreSQL, Relational databases
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1mo
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Junior Site Reliability Engineer
United States
$95k-$110k/yr RemoteFull Time
Coalfire
Coalfire: Provides cybersecurity advisory, assessment, and technical testing services.
2+ YOE2+ years in production operations; strong cloud, IaC, automation skills; experience with AWS/Azure/GCP; scripting; collaboration and communication abilities.
AWS, Azure, GCP, Terraform, Ansible, Jira, ServiceNow, Splunk, Elastic Stack, Bash, Python, PowerShell
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4h
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Junior Programmer/Analyst
Canton, Illinois, United States
$60k-$65k/yr OnsiteFull Time
Spoon River College
Spoon River College: Provides community-based higher education and career training programs.
4+ YOEBachelor’s or Associate’s in IT preferred; experience in administrative systems/programming; SQL, Python, Java, JavaScript, C#, or C++; flexible to evenings/weekends.
SQL, Python, Java, JavaScript, C#, C++
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6d
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Junior Developer/IT Support (Part Time Student)
North America
RemoteFull Time
US Property Consultants
US Property Consultants: Provides management and construction services for multifamily residential properties.
2+ YOEFront-line IT support and software development with Python/PowerShell, SQL, scripting; Windows admin; HR/payroll system familiarity.
Python, PowerShell, JavaScript, Git, GitHub, HTML, CSS, REST, APIs, SQL, Windows, Office Suite, Apex Payroll, Time & Attendance, HRIS
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5d
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Software Engineer Internship (Technical Operations Team) - Summer 2026
Chicago, Illinois, United States
$25/hr OnsiteInternship
Gelber Group
Gelber Group: Executes electronic trades using proprietary capital globally.
0+ YOEPursuing a BS/MS in CS or related field; junior or higher; strong Python; web development experience; good communication with non-engineering stakeholders.
Python, JavaScript, TypeScript, C#
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1w
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Junior Quality Engineer – AI Ecosystem
Chicago, Illinois, United States
$90k-$100k/yr HybridFull Time
Lenovo
LenovoHKSE: 992: Manufactures personal computers, mobile devices, and server infrastructure.
2+ YOE2+ years in Quality Engineering or Software Testing; Bachelor's in Engineering or a technical field; experience with manual and automated testing; basic automation (Python/Java/JavaScript).
Python, Java, JavaScript, Android, Cloud, CI/CD
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23h
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Junior DevOps Engineer
United States
RemoteFull Time
Kolbe Academy
Kolbe Academy: Provides classical Catholic K-12 homeschooling curriculum and online courses.
Associate degree or equivalent experience; scripting, networking, REST APIs; security practices; Git; cloud, containers, ETL; education-technology experience preferred.
Python, PowerShell, Bash, TCP/IP, DNS, VPN, REST APIs, Git, AWS, Azure, Docker, Kubernetes, ETL
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3w
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Software Developer I
United States
RemoteFull Time
ITA International
ITA International: Provides professional services and data analytics for defense operations.
2+ YOE2+ years software development experience; strong Python/Java; capable of writing unit tests and collaborating with teams.
Python, Java, Git
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1mo
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0to1 Engineer
United States
$200k-$227k/yr RemoteContract
Mozilla
Mozilla: Developing open-source web browsers and digital privacy tools.
Prototyping and software development for open source AI; strong Python/TypeScript; experience with AI tooling and APIs; ability to work in public and open repositories.
Python, TypeScript, Open source AI stack, APIs, Cursor, Claude Code
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1w
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2026 Summer Intern - Software Engineer
Chicago, Illinois, United States
$47/hr HybridTemporary
CIBC
CIBCToronto Stock Exchange: CM: Providing personal and business banking and wealth management services.
0+ YOEJunior or senior majoring in CS/IT/SE or related field; graduation 2026-2027; knowledge of SDLC, databases (Oracle/SQL), and security basics; Python experience; adaptable and team oriented.
C++, Python, Oracle, SQL, Excel, Office, STL
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1w
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Software Engineer
United States
$85k-$178k/yr RemoteFull Time
Indeed
Indeed: Online employment platform for job seekers and employers.
Develop, test, and maintain AI gateway/guardrails features; cloud infra familiarity; Node.js, Python, or TypeScript; degree in CS/CE/EE/Math; interest in LLM/AI systems.
AWS, GCP, Azure, Node.js, Python, TypeScript
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5d
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Software Engineer
Champaign, Illinois, United States
$80k-$110k/yr HybridFull Time
PAR Technology
PAR TechnologyNYSE: PAR: Provides unified software and hardware for restaurant operations.
0+ YOEBachelor’s degree in CS or Computer Engineering; 0-2 years of experience; strong CS fundamentals; experience with Java or Python; SQL; AWS; Snowflake; AI-assisted development tools.
SQL, AWS, Snowflake, Java, Python
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1mo
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2026 Summer Intern - Software Engineer
Chicago, Illinois, United States
$47/hr HybridInternship, Temporary
CIBC
CIBCToronto Stock Exchange: CM: Provides personal, commercial, and investment banking and wealth management.
0+ YOEJunior or senior majoring in CS/IT/Software Engineering; expected graduation Dec 2026–Jun 2027; SDLC, Oracle/SQL, batch processing, firewalls, FTP/SFTP knowledge; Python; AI knowledge is a plus; strong teamwork and communication.
Python, Oracle, SQL, FTP/SFTP, Firewalls, Microsoft Office, Excel, PowerPoint
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6d
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Sr. Platform Engineer I
Chicago or Remote
$165k-$180k/yr HybridFull Time
NinjaTrader
NinjaTrader: Provides futures brokerage services and a trading software platform.
8+ YOE8+ years in platform engineering, DevOps, or developer tooling; strong CI/CD, Kubernetes/Docker, scripting (Python/Go/Bash); IaC (Terraform/Helm); cloud (AWS/GCP/Azure); focus on developer experience.
Kubernetes, Docker, Terraform, Helm, GitHub Actions, Python, Go, Bash
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1w
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Software Engineer 1, Dev Accelerator
Canada or United States
RemoteFull Time
Abnormal AI
Abnormal AI: Protects enterprises from email attacks using behavioral artificial intelligence.
1+ YOE1+ years of professional development or 2+ years of strong open source contributions; strong fundamentals; Python or Go; CI/CD; able to work with AI tools.
Python, Go, CI/CD, Git, gRPC, Protobuf
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1w
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Associate Software Engineer
United States
$65k-$87k/yr RemoteFull Time
Wiland
Wiland: Provides predictive audience intelligence and data-driven marketing analytics solutions.
1+ YOEBachelor's in CS or related field or equivalent experience; 1+ years in software development; 1+ years in consultative/training roles; experience with NodeJS, JavaScript, PHP, MySQL/MariaDB, Linux, Python; familiarity with Agile; Direct/Digital Marketing experience a plus
NodeJS, JavaScript, PHP, RDBMS/MySQL/MariaDB, Linux, Python
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3w
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SuccessFactors Recruiting: Developer (The Major Extremity Trauma Research Consortium) (120810)
United States
$24-$43/hr RemotePart Time
Johns Hopkins University
Johns Hopkins University: Private research university providing higher education and global research.
Part-time, entry-level Developer with foundational skills in R and/or Python; no prior professional experience required; Bachelor’s degree; 25 hours/week; remote.
R, Python, Git, Basecamp
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3w
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Software Engineer I - Backend
United States
RemoteFull Time
CDW
CDWNasdaq: CDW: Sells and manages IT products and services for organizations.
0+ YOEDesign and develop web apps using Python; REST/GraphQL APIs; PostgreSQL/Redis/ElasticSearch; unit/integration tests; CI/CD with GitLab, Kubernetes/EKS; AWS; strong collaboration.
Python, REST, GraphQL, PostgreSQL, Redis, ElasticSearch, GitLab, Kubernetes, AWS
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1mo
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Machine Learning/AI Engineer (LATAM Remote)
United States or Mexico
RemoteFull Time
UP.Labs
UP.Labs: Builds and scales mobility-focused startups with corporate partners.
Proficient in computer vision, ML systems, backend development, Python, Generative AI, PostgreSQL, and Databricks; strong cloud familiarity.
Python, PostgreSQL, Databricks, GCP, AWS, Azure, OpenAI, LLMs
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23h
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Software Dev Engineer I
Champaign, Illinois, United States
$89k-$184k/yr HybridFull Time
Yahoo
Yahoo: Digital media platform offering news, email, and search services.
0+ YOECS degree; entry-level software development; experience with Python/Java/C++; AI/ML tools and cloud services; strong problem solving; distributed systems.
Python, Java, C++, SQL, LLM APIs, Cloud (AWS/GCP), Kubernetes, Terraform, Airflow, BigQuery, Dataproc, Sagemaker, Vertex AI
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2w
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Jr Software Developer
O’Fallon, Illinois, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
2+ YOEBS or MS in a tech field; 2+ years experience; TS/SCI clearance; strong AWS, Python, and DevOps skills.
AWS, Python, React, C#, ASP.NET Core Web API, Node.js, TypeScript, PostgreSQL, Docker, Kubernetes, Linux, Bash, OpenAPI/Swagger, GitLab DevOps, ESRI, RDS
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1mo
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Entry/Mid-Level Full stack developer
North America
$50k-$70k/yr RemoteFull Time
AEPOP
AEPOP: Distributes contractor supplies and provides business and technology solutions.
0+ YOEEntry to mid-level full stack developer with BS in CS or related field; strong JS/Python; front-end and back-end skills; Git; remote, full-time.
JavaScript, Python, Java, C#, React, Angular, Vue.js, Node.js, Express, Django, Flask, HTML5, CSS3, Git, Docker, Kubernetes, CI/CD
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2w
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Software Engineer Intern - Product & Backend
United States
RemoteInternship
Good At Numbers
Good At Numbers: Automated decision intelligence platform for business operations.
3+ YOE3+ years software development experience preferred; backend APIs, databases; Python/JavaScript/TypeScript; testing, code review, maintainable design; strong communication.
Python, JavaScript, TypeScript, React, Next.js, FastAPI, Django, Node.js, PostgreSQL, APIs, Testing
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2w
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Web Software Developer
United States
RemoteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
Active Secret Clearance; AWS native infrastructure; EKS; Kubernetes; Docker; Node.js; Python; Django; React; scalable web applications.
AWS, EKS, Docker, Kubernetes, Node.js, Python, Django, React
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1w
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Associate AI Engineer / AI Engineer
Chicago or Lewisville or Toronto
$80k-$120k/yr HybridFull Time
Applied Systems
Applied Systems: Cloud-based software for insurance agency and brokerage management.
Python and SQL programming; data science exposure; interest in applied AI; cloud platforms (Google Cloud); API knowledge; problem-solving.
Python, SQL, Google Cloud, Vertex AI, Looker, Tableau, Power BI, Git
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3w
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Software Engineer I, Backend (Purchasing Power Experience)
United States or Canada
$115k-$170k/yr RemoteFull Time
Affirm
AffirmNasdaq: AFRM: Financial platform providing installment loans for consumer purchases.
0+ YOEExperience designing, developing and launching backend systems at scale; proficient in Python or Kotlin; familiar with AWS, MySQL, Kubernetes; strong code quality and collaboration; Bachelor’s degree or equivalent practical experience.
Python, Kotlin, AWS, MySQL, Kubernetes
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2mo
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Product Engineer
United States
$140k-$220k/yr RemoteFull Time
Coverbase
Coverbase: Automates third-party risk management and procurement using artificial intelligence.
Strong software engineering skills; startup environment; productivity across stack (React, Python, AI, AWS).
React, TypeScript, Python, PostgreSQL, AWS, Pulumi, AI systems
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HiringCafe market data

Junior Python Developer Jobs market signals in Illinois, United States

These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.

Open jobs
270+
Hiring companies
200+
Fresh sample
70% new in 30d
Salary visibility
66% show pay

Companies appearing in this market

AffirmCIBCGood At NumbersPAR TechnologyYahooAbnormal AIAEPOPApplied Systems

Work location mix in visible results

Remote: 27Hybrid: 10Onsite: 7

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