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Junior Python Developer Jobs in Wheaton, IL (NOW HIRING)

Next Step Systems

Python Software Engineer

Chicago, IL · On-site

  • Medical

  • Retirement

  • PTO

Python Software Engineer, Chicago, IL A proprietary trading firm with three locations in Chicago ... Developer, Trading, Financial, Chicago Recruiters, Information Technology Jobs, IT Jobs, Chicago ...

Next Step Systems

Software Engineer, Python

Chicago, IL · On-site

  • Medical

  • Retirement

  • PTO

Software Engineer, Python, Chicago, IL This is a 100% onsite Software Engineer position and not ... Developer, Programming, Programmer Analyst, Chicago Recruiters, Information Technology Jobs ...

Next Step Systems

Software Engineer, Python

Chicago, IL · On-site

  • Medical

  • Retirement

  • PTO

Software Engineer, Python, Chicago, IL This is a 100% onsite Software Engineer position and not ... Developer, Programming, Programmer Analyst, Chicago Recruiters, Information Technology Jobs ...

Old Mission

Python Software Engineer

Chicago, IL · On-site +1

$150K - $225K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

About the Position We are on the lookout for Software Engineers who excel in Python. As a Software Engineer, you'll play a pivotal role on your team, taking ownership of cutting-edge projects. Your ...

Rewards Network

Senior Scala/Python Engineer (Hybrid)

Chicago, IL · Hybrid

$130K - $170K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Collaborate with DevOps and data teams to align on platform performance and operational needs ... Experience building applications using Python (preferred). Education, Certifications and Experience:

Kemper

Python Engineer Manager

Downers Grove, IL

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

... engineering, data analysis or a similar role Proven experience in managing technical team and mentoring. * 3+ years experience in Python development, with experience creating python-based ...

Rewards Network

Senior Scala/Python Engineer (Hybrid)

Chicago, IL · On-site +1

$130K - $170K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... DevOps and data teams to align on platform performance and operational needs. • Implement ... Experience building applications using Python (preferred). Education, Certifications and Experience:

Old Mission

Python Software Engineer

Chicago, IL · On-site

$150K - $225K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

About the Position We are on the lookout for Software Engineers who excel in Python. As a Software Engineer, you'll play a pivotal role on your team, taking ownership of cutting-edge projects. Your ...

TransMarket Group

Junior Algorithmic Trader

Chicago, IL · On-site

$69K - $89K/yr

As a Junior Algorithmic Trader, you will have the opportunity to experience relative value ... Learn and master object-oriented programming languages (C++ and Python) * Build and maintain ...

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Junior Python Developer information

See Wheaton, IL salary details

$23.2K

$86K

$132.9K

How much do junior python developer jobs pay per year?

As of Aug 12, 2026, the average yearly pay for junior python developer in Wheaton, IL is $85,995.00, according to ZipRecruiter salary data. Most workers in this role earn between $64,800.00 and $84,100.00 per year, depending on experience, location, and employer.

What is a junior Python developer?

A Junior Python Developer is an entry-level software developer who specializes in writing, testing, and maintaining code using the Python programming language. They typically work under the guidance of senior developers and assist in building applications, fixing bugs, and improving performance. Their responsibilities may include writing scripts, working with databases, and integrating third-party services. Strong problem-solving skills, knowledge of Python frameworks like Django or Flask, and familiarity with version control systems like Git are often required. Junior developers are expected to learn quickly and contribute to the development team while gaining hands-on experience.

What are the key skills and qualifications needed to thrive in the junior Python developer position?

To thrive as a Junior Python Developer, you need a solid foundation in Python programming, an understanding of computer science fundamentals, and often a relevant degree or coursework. Familiarity with version control systems like Git, basic experience with web frameworks such as Flask or Django, and knowledge of databases are commonly expected, while certifications like PCEP can be advantageous. Attention to detail, a willingness to learn, effective problem-solving, and strong communication skills are essential soft skills for this role. These competencies ensure you can contribute efficiently to software development projects, adapt to new challenges, and collaborate well within a development team.

What are the typical daily responsibilities of a junior Python developer?

As a Junior Python Developer, your daily tasks may include writing and testing code, fixing bugs, and participating in code reviews alongside more experienced developers. You'll often work on modules or features under the guidance of senior team members, attend stand-up meetings, and update project documentation as needed. Collaboration with frontend developers, QA testers, and project managers is common, especially when integrating systems or implementing new features. Over time, you can expect to take on more complex tasks and gradually build your expertise through mentorship and hands-on project work.

Is there a demand for junior Python developers?

There is strong demand for junior Python developers across various industries, including web development, data analysis, and automation. Companies seek candidates with basic programming skills, knowledge of frameworks like Django or Flask, and familiarity with version control tools such as Git. Entry-level roles are available in many regions due to Python's popularity and versatility.
What are the most commonly searched types of Python Developer jobs in Wheaton, IL? The most popular types of Python Developer jobs in Wheaton, IL are:
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What job categories do people searching Junior Python Developer jobs in Wheaton, IL look for? The top searched job categories for Junior Python Developer jobs in Wheaton, IL are:
What cities near Wheaton, IL are hiring for Junior Python Developer jobs? Cities near Wheaton, IL with the most Junior Python Developer job openings:
Junior Python Developer jobs near you
Infographic showing various Junior Python Developer job openings in Wheaton, IL as of August 2026, with employment types broken down into 96% Full Time, and 4% Contract. Highlights an 84% In-person, 4% Hybrid, and 12% Remote job distribution, with an average salary of $85,995 per year, or $41.3 per hour.

Senior GenAI/Python Engineer

Tata Consultancy Service Limited

Chicago, IL • On-site

$90K - $130K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 8 days ago

Job description

Must Have Technical/Functional Skills
  • 5+ years of advanced professional Python development experience with production-grade coding practices.
  • Strong hands-on experience writing clean, tested, maintainable code using typing, pytest, packaging standards, Git, CI/CD, Docker, and code review discipline.
  • 1.5+ years of hands-on experience building GenAI / LLM applications in production using OpenAI, Azure OpenAI, Anthropic, Bedrock, or similar model APIs.
  • Experience building LLM-powered agents, including intent classification, domain-specific agents, agentic extraction flows, and multi-step orchestration.
  • Hands-on experience with Agentic AI frameworks or patterns such as LangChain, LangGraph, LlamaIndex, function calling, tool use, or custom orchestration.
  • Strong experience in structured output extraction from LLMs using JSON schema enforcement, Pydantic, retry/repair strategies, and validation logic.
  • Experience with RAG and vector search concepts including embeddings, chunking, hybrid search, reranking, entity resolution, fuzzy matching, confidence thresholds, and disambiguation flows.
  • Working knowledge of vector databases or search platforms such as pgvector, Pinecone, Weaviate, OpenSearch, Snowflake vector functions, or equivalent.
  • Strong API development experience using FastAPI or similar frameworks such as Flask or Django.
  • Experience with async Python and orchestration of parallel LLM/API calls.
  • Strong SQL skills and comfort working with large analytical datasets.
  • Cloud environment experience, preferably Azure; AWS or GCP acceptable.
  • Strong written and verbal communication skills, with ability to collaborate directly with engineering teams, product owners, and cross-functional stakeholders.

Roles & Responsibilities
  • Build and enhance LLM-powered agentic applications using Python.
  • Develop intent classification, domain-specialist agent workflows, and agentic extraction pipelines for complex user questions.
  • Build natural-language-to-structured-payload pipelines that convert user utterances into accurate JSON query payloads, including filters, exclusions, rankings, and metric selection.
  • Integrate semantic search and vector retrieval services for embedding-based entity resolution, fuzzy matching, confidence scoring, and disambiguation flows.
  • Design, build, and consume FastAPI-based microservices.
  • Implement async orchestration patterns for parallel LLM calls, API calls, and downstream service integrations.
  • Develop prompt engineering patterns, structured output enforcement, JSON schema validation, function calling, tool usage, and guardrails.
  • Build evaluation harnesses, test sets, and regression test frameworks to measure extraction accuracy and validate prompt/model changes.
  • Work with metadata/catalog services, entitlement-aware data access, and reporting-engine payload contracts.
  • Collaborate with multiple platform, data, service, and product teams to deliver production-ready GenAI capabilities.
  • Write clear technical documentation including Confluence pages, ADRs, sequence diagrams, and flow diagrams.
  • Participate in hands-on technical evaluation, code reviews, design discussions, and production readiness reviews.

Salary Range-$90,000-$130,000 a year
#LI-KR3
TCS Employee Benefits Summary:
Discretionary Annual Incen tive.
Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans.
Family Support: Maternal & Parental Leaves.
Insurance Options: Auto & Home Insurance, Identity Theft Protection.
Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement.
Time Off: Vacation, Time Off, Sick Leave & Holidays.
Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.

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