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Senior Python Software Engineer Jobs in Naperville, IL

Caterpillar

Senior Software Engineer

Chicago, IL · On-site

$112K - $183K/yr

MongoDB); (3) 1 year of experience in Python application development and data management; (4) 1 ... Senior Software Engineer / R0000375840 #LI-DNI] . Summary Pay Range: $112,710.00 - $183,140.00 ...

TransMarket Group

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

Tools: C++, Python, Bash, Linux, SQL Requirements * Bachelor's degree in a quantitative or technical field, plus five years of experience in software engineering, or a Master's degree in a ...

Infleqtion

Sr Software Engineer

Chicago, IL · On-site

$106K - $145K/yr

We are seeking a Senior Software Engineer to join the team building the control system software for ... Experience with Python and at least one compiled language, with a desire to learn and work in Rust

Infleqtion

Sr Software Engineer

Chicago, IL · On-site

$106K - $145K/yr

We are seeking a Senior Software Engineer to join the team building the control system software for ... Experience with Python and at least one compiled language, with a desire to learn and work in Rust

Jorie AI

Software Engineer

Oak Brook, IL · On-site

$90K - $120K/yr

We are seeking a Python Senior Software Engineers to build and maintain intelligent automation solutions focused on Revenue Cycle Management (RCM) in the healthcare industry. We are seeking eight ...

Capital One

Sr Lead Software Engineer

Chicago, IL · On-site

JavaScript, Java, TypeScript, SQL, Python, or Go * 4+ years of experience with AWS, GCP, Microsoft Azure, or another cloud service * 4+ years of experience in open source frameworks * 1+ years of ...

Capital One

Senior Lead Software Engineer

Chicago, IL · On-site

JavaScript, Java, TypeScript, SQL, Python, or Go * 4+ years of experience with AWS, GCP, Microsoft Azure, or another cloud service * 4+ years of experience in open source frameworks * 1+ years of ...

Meds

Senior Software Engineer

Chicago, IL

$126K - $166K/yr

TypeScript, Python, Ruby * Databases: SQL and no-SQL, BigQuery, MongoDB * Frameworks, key libraries ... Be on the cutting edge of both telemedicine and software engineering * Contribute as a core team ...

Capital One

Senior Lead Software Engineer

Chicago, IL · On-site

JavaScript, Java, TypeScript, SQL, Python, or Go * 4+ years of experience with AWS, GCP, Microsoft Azure, or another cloud service * 4+ years of experience in open source frameworks * 1+ years of ...

Jorie AI

Software Engineer

Oak Brook, IL · Remote

We are seeking a Python Senior Software Engineers to build and maintain intelligent automation solutions focused on Revenue Cycle Management (RCM) in the healthcare industry. We are seeking eight ...

Meds

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

TypeScript, Python, Ruby * Databases: SQL and no-SQL, BigQuery, MongoDB * Frameworks, key libraries ... Be on the cutting edge of both telemedicine and software engineering * Contribute as a core team ...

Capital One

Senior Lead Software Engineer

Chicago, IL · On-site

JavaScript, Java, TypeScript, SQL, Python, or Go * 4+ years of experience with AWS, GCP, Microsoft Azure, or another cloud service * 4+ years of experience in open source frameworks * 1+ years of ...

Jorie AI

Software Engineer

Oak Brook, IL · Remote

We are seeking a Python Senior Software Engineers to build and maintain intelligent automation solutions focused on Revenue Cycle Management (RCM) in the healthcare industry. We are seeking eight ...

Capital One

Sr Lead Software Engineer

Chicago, IL · On-site

JavaScript, Java, TypeScript, SQL, Python, or Go * 4+ years of experience with AWS, GCP, Microsoft Azure, or another cloud service * 4+ years of experience in open source frameworks * 1+ years of ...

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All JobsPython Software Engineer JobsSenior Python Software Engineer JobsSenior Python Software Engineer Jobs in Naperville, IL

Senior Python Software Engineer information

See Naperville, IL salary details

$54.9K

$141.8K

$194.7K

How much do senior python software engineer jobs pay per year?

As of Jul 9, 2026, the average yearly pay for senior python software engineer in Naperville, IL is $141,764.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,300.00 and $163,300.00 per year, depending on experience, location, and employer.

What is the difference between Senior Python Software Engineer vs Python Developer?

AspectSenior Python Software EngineerPython Developer
Required CredentialsBachelor's degree in CS or related field, experience in software engineeringBachelor's degree in CS or related field, coding proficiency
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing applications, debugging
Employer & Industry UsageTech companies, startups, enterprise softwareWeb development, data analysis, automation projects
Common Search & Comparison IntentUnderstanding senior-level roles, responsibilities, and skillsEntry to mid-level coding roles, project involvement

The main difference between a Senior Python Software Engineer and a Python Developer lies in experience, responsibilities, and scope. Senior engineers typically lead projects, design system architecture, and mentor junior staff, while Python Developers focus on coding, application development, and implementation. Both roles require strong Python skills and relevant credentials, but senior roles demand more experience and leadership capabilities.

What are some common challenges faced by Senior Python Software Engineers when leading complex projects, and how can they be addressed?

Senior Python Software Engineers often face challenges such as balancing hands-on coding with mentoring junior team members, managing technical debt, and designing scalable solutions. Successfully addressing these challenges involves clear communication, proactive code reviews, and effective prioritization of tasks. Collaborating closely with cross-functional teams and fostering a culture of knowledge sharing can also help ensure project success and team growth.

What are the key skills and qualifications needed to thrive as a Senior Python Software Engineer, and why are they important?

To thrive as a Senior Python Software Engineer, you need advanced proficiency in Python programming, strong problem-solving abilities, and a solid background in computer science or a related field. Familiarity with frameworks like Django or Flask, experience with version control systems such as Git, and knowledge of cloud platforms and CI/CD tools are typically required. Leadership, effective communication, and mentorship skills help you collaborate with teams and guide junior developers. These skills ensure the delivery of robust, scalable software solutions and foster a productive, innovative development environment.

What does a Senior Python Software Engineer do?

A Senior Python Software Engineer designs, develops, tests, and maintains complex software applications using the Python programming language. They often lead or mentor junior developers, architect software solutions, and ensure best coding practices are followed. These professionals collaborate with cross-functional teams to deliver scalable and efficient systems, troubleshoot issues, and optimize application performance. Their expertise includes advanced knowledge of Python frameworks, libraries, and development tools, as well as experience with databases, APIs, and cloud services.
What are popular job titles related to Senior Python Software Engineer jobs in Naperville, IL? For Senior Python Software Engineer jobs in Naperville, IL, the most frequently searched job titles are:
What job categories do people searching Senior Python Software Engineer jobs in Naperville, IL look for? The top searched job categories for Senior Python Software Engineer jobs in Naperville, IL are:
What cities near Naperville, IL are hiring for Senior Python Software Engineer jobs? Cities near Naperville, IL with the most Senior Python Software Engineer job openings:
Senior Python Software Engineer jobs near you
Senior Software Engineer

Senior Software Engineer

Caterpillar

Chicago, IL • On-site

$112K - $183K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 29 days ago

Caterpillar Inc. rating

7.5

Company rating: 7.5 out of 10

Based on 465 frontline employees who took The Breakroom Quiz

225th of 427 rated machine equipment manufacturers

Job description

Career Area:
Technology, Digital and Data
Job Description:
Your Work Shapes the World at Caterpillar Inc.
When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.
Caterpillar Inc. seeks Senior Software Engineer at its facility located at 540 W Madison St, Chicago, IL 60661.
Design, modify, develop, write, and implement software programming applications for target systems using agile methods. Acquires client requirements resolving workflow problems through automation optimization. Writes source codes for new applications, and/or generating and enhancing code samples for existing applications. Utilizers automated testing tools to perform the testing and maintenance. Produces software products or systems in line with product requirements. Use a structured methodology for delivering and managing new or enhanced software products to the marketplace. Designs, develops and maintains interfaces and linkage to alternative platforms and software packages. Converts market requirements into software product design. Designs, configurates and integrates technical aspects of software products. Designs, plans, and executes testing strategies and tactics to ensure software product quality and adherence to stated requirements. 100% Telecommuting Allowed.
REQS: This position requires a master's degree or foreign equivalent in Computer Science or a related field and 1 year of experience in designing and developing software on a service layer/backend stack or related occupation. Additionally, the applicant must have employment experience with: (1) 1 year of experience in Java application development; (2) 1 year of experience in Development of software applications using relational databases (e.g. PostgreSQL) and non-relational databases (e.g. MongoDB); (3) 1 year of experience in Python application development and data management; (4) 1 year of experience in application of test-driven development (TDD) practices; and (5) Agile development methodologies.
Applicants who are interested in this position should apply via www.caterpillar.com/careers, search [Senior Software Engineer / R0000375840 #LI-DNI].
Summary Pay Range:
$112,710.00 - $183,140.00
Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.
Benefits:
Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.
  • Medical, dental, and vision benefits*
  • Paid time off plan (Vacation, Holidays, Volunteer, etc.)*
  • 401(k) savings plans*
  • Health Savings Account (HSA)*
  • Flexible Spending Accounts (FSAs)*
  • Health Lifestyle Programs*
  • Employee Assistance Program*
  • Voluntary Benefits and Employee Discounts*
  • Career Development*
  • Incentive bonus*
  • Disability benefits
  • Life Insurance
  • Parental leave
  • Adoption benefits
  • Tuition Reimbursement

* These benefits also apply to part-time employees
Visa Sponsorship is not available for this position.
Posting Dates:
June 10, 2026 - October 8, 2026
Any offer of employment is conditioned upon the successful completion of a drug screen.
Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.
Not ready to apply? Join our Talent Community.

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