Explore 10 python software developer jobs from 1 hiring companies in Princeton, IL, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Python Software Developer Jobs

Caterpillar

Cintal

Onsite

Career Area:Technology, Digital and DataJob Description:Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you&#39;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&#39;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.Cat Digital is the digital and technology arm of Caterpillar Inc., leveraging the latest technologies to build industry-leading digital solutions for our customers and dealers. With over 1.5 million connected assets worldwide, our teams use data, technology, advanced analytics, telematics, and AI capabilities to help our customers build a better, more sustainable world.Job Summary: As a Lead Software Engineer you will work on Generative AI projects focused on building assistants, AI-infused processing pipelines, tooling, and software. Join our innovative team and contribute to the development of cutting-edge AI solutions at Cat Digital. What You Will Do:<ul><li>Develop and deploy Gen AI solutions utilizing Python and OOP principles.</li><li>Implement and manage CI/CD pipelines using GitHub Actions.</li><li>Deploy solutions on AWS using CloudFormation.</li><li>Work with frameworks such as LangChain, LangGraph, Semantic Kernel, and Crew.ai.</li><li>Apply knowledge of Large Language Models (LLMs) and prompt engineering concepts.</li><li>Develop and deploy services using FastAPI on AWS.</li><li>Collaborate with data scientists to refactor analytics solutions for production, ensuring scalability and efficiency.</li><li>Assist in the development of machine learning and AI pipelines using Apache Airflow.</li></ul> What You Will Have:<ul><li>Software Development: Knowledge of software development tools and activities; ability to produce software products or systems in line with product requirements.</li><li>Software Development Life Cycle: Knowledge of the software development life cycle; ability to use a structured methodology for delivering and managing new or enhanced software products.</li><li>Software Product Design/Architecture: Knowledge of software product design; ability to convert requirements into software product design.</li><li>Software Product Technical Knowledge: Knowledge of technical aspects of a software products; ability to design, configure and integrate technical aspects of software products.</li><li>Software Product Testing: Knowledge of software product testing; ability to design, plan, and execute testing strategies and tactics to ensure software product quality and adherence to stated requirements.</li></ul> Considerations for Top Candidates:<ul><li>Comfort planning, building, maintaining, and coordinating with others on large, complex projects.</li><li>Software development experience and solid working knowledge of OOP principles</li><li>Experience in designing and developing software applications in Python (nice to have experience: GoLang, frontend frameworks like React)</li><li>Experience with Python libraries such as FastAPI, LangGraph, and LangChain</li><li>Experience with modern Gen AI system architectures and techniques (multi agent, big tool, context management, MCP, long term memory)</li><li>Experience working with Git version control on medium to large teams</li><li>Exceptional communication skills with experience working on a cross-functional team</li><li>Deploying software using GitHub Actions or similar</li><li>Experience with AWS components such as SageMaker Studio, Lambda, API Gateway, and RDS</li><li>Technical writing skills</li></ul>Additional Information:This position will be based out of either our Chicago, IL or Peoria, IL offices. #LI #BI (used to post on Built In Chicago)What You Will Get:Working with a Fortune 100 leader, you can build your career on a global scale and take advantage of development opportunities with emerging technologies. We’ve created an inclusive environment for you to explore your passions, make an impact and do the work that really matters. Join Us.About Caterpillar Caterpillar Inc. is the world’s leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we’ve been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed.<h3></h3><h3></h3>Summary Pay Range:$128,470.00 - $208,770.00Compensation 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.<ul><li>Medical, dental, and vision benefits*</li><li>Paid time off plan (Vacation, Holidays, Volunteer, etc.)*</li><li>401(k) savings plans*</li><li>Health Savings Account (HSA)*</li><li>Flexible Spending Accounts (FSAs)*</li><li>Health Lifestyle Programs*</li><li>Employee Assistance Program*</li><li>Voluntary Benefits and Employee Discounts*</li><li>Career Development*</li><li>Incentive bonus*</li><li>Disability benefits</li><li>Life Insurance</li><li>Parental leave</li><li>Adoption benefits</li><li>Tuition Reimbursement</li></ul>       * These benefits also apply to part-time employees<h3></h3><h3></h3><h3></h3><h3></h3><h3></h3>Visa Sponsorship is not available for this position.<h3></h3><h3></h3>Posting Dates:April 9, 2026 - April 26, 2026Any 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 <a href="http://flows.beamery.com/caterpillarinc/talcom" target="_blank">Talent Community</a>.

Lead Software Engineer, Gen AI

Lead Software Engineer

Lead Software Engineer for Gen AI; Python, AWS, CI/CD, LangChain/LangGraph, FastAPI; collaboration with data scientists; production AI pipelines.

Career Area:Technology, Digital and DataJob Description:Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you&#39;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&#39;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.Cat Digital is the digital and technology arm of Caterpillar Inc., leveraging the latest technologies to build industry-leading digital solutions for our customers and dealers. With over 1.5 million connected assets worldwide, our teams use data, technology, advanced analytics, telematics, and AI capabilities to help our customers build a better, more sustainable world.  Job Summary: As a Lead Software Engineer you will work on Generative AI projects focused on building assistants, AI-infused processing pipelines, tooling, and software. Join our innovative team and contribute to the development of cutting-edge AI solutions at Cat Digital. What You Will Do:<ul><li>Develop and deploy Gen AI solutions utilizing Python and OOP principles.</li><li>Implement and manage CI/CD pipelines using GitHub Actions.</li><li>Deploy solutions on AWS using CloudFormation.</li><li>Work with frameworks such as LangChain, LangGraph, Semantic Kernel, and Crew.ai.</li><li>Apply knowledge of Large Language Models (LLMs) and prompt engineering concepts.</li><li>Develop and deploy services using FastAPI on AWS.</li><li>Collaborate with data scientists to refactor analytics solutions for production, ensuring scalability and efficiency.</li><li>Assist in the development of machine learning and AI pipelines using Apache Airflow.</li></ul> What You Will Have:<ul><li>Software Development: Extensive knowledge of software development tools and activities; ability to produce software products or systems in line with product requirements.</li><li>Software Development Life Cycle: Extensive knowledge of the software development life cycle; ability to use a structured methodology for delivering and managing new or enhanced software products.</li><li>Software Product Design/Architecture: Extensive knowledge of software product design; ability to convert requirements into software product design.</li><li>Software Product Technical Knowledge: Extensive knowledge of technical aspects of a software products; ability to design, configure and integrate technical aspects of software products.</li><li>Software Product Testing: Extensive knowledge of software product testing; ability to design, plan, and execute testing strategies and tactics to ensure software product quality and adherence to stated requirements.</li></ul> Top Candidates Will Also Have:<ul><li>Comfort planning, building, maintaining, and coordinating with others on large, complex projects.</li><li>Software development experience and solid working knowledge of OOP principles</li><li>Experience in designing and developing software applications in Python (nice to have experience: GoLang, frontend frameworks like React)</li><li>Experience with Python libraries such as FastAPI, LangGraph, and LangChain</li><li>Experience with modern Gen AI system architectures and techniques (multi agent, big tool, context management, MCP, long term memory)</li><li>Experience working with Git version control on medium to large teams</li><li>Exceptional communication skills with experience working on a cross-functional team</li><li>Deploying software using GitHub Actions or similar</li><li>Experience with AWS components such as SageMaker Studio, Lambda, API Gateway, and RDS</li><li>Technical writing skills</li></ul> Additional Details:<ul><li>This position will be based out of either our Chicago, IL; Peoria, IL; or Irving, TX (Dallas) offices</li><li>Relocation Assistance is NOT available for this role</li></ul> What You Will Get: Working with a Fortune 100 leader, you can build your career on a global scale and take advantage of development opportunities with emerging technologies. We&#39;ve created an inclusive environment for you to explore your passions, make an impact and do the work that really matters. Join Us.  About Caterpillar Caterpillar Inc. is the world&#39;s leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we&#39;ve been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed.<h3></h3><h3></h3>Summary Pay Range:$128,470.00 - $208,770.00Compensation 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.<ul><li>Medical, dental, and vision benefits*</li><li>Paid time off plan (Vacation, Holidays, Volunteer, etc.)*</li><li>401(k) savings plans*</li><li>Health Savings Account (HSA)*</li><li>Flexible Spending Accounts (FSAs)*</li><li>Health Lifestyle Programs*</li><li>Employee Assistance Program*</li><li>Voluntary Benefits and Employee Discounts*</li><li>Career Development*</li><li>Incentive bonus*</li><li>Disability benefits</li><li>Life Insurance</li><li>Parental leave</li><li>Adoption benefits</li><li>Tuition Reimbursement</li></ul>       * These benefits also apply to part-time employees<h3></h3><h3></h3><h3></h3><h3></h3><h3></h3>Visa Sponsorship is not available for this position.<h3></h3><h3></h3>Posting Dates:April 16, 2026 - May 3, 2026Any 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 <a href="http://flows.beamery.com/caterpillarinc/talcom" target="_blank">Talent Community</a>.

Gen AI focus, Python, OOP, CI/CD (GitHub Actions), AWS (CloudFormation), LangChain/LangGraph, Semantic Kernel, Crew.ai, FastAPI, ML pipelines, Airflow

Career Area:EngineeringJob Description:Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you&#39;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&#39;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.Role Definition: The individual hired for this position will collaborate with the software, tools and technology teams to create architectural guidelines, frameworks and patterns that application teams will follow to build high-quality, consistent and scalable software for RTOS &amp; Linux based applications across the product lines. The individual will provide team mentorship that includes providing schedule adherence and alignment. Reporting to stakeholders will be required on a regular basis to ensure alignment to organizational commitments.What You Will Do:<ul><li>Collaborate with application teams and establish application architecture guidelines for software modularity, communication patterns, common services and ensure governance across teams.</li><li>Ensure consistent design with standardized layering, interfaces and reusable components to improve maintainability</li><li>Collaborate with application teams to identify and establish shared libraries, services and create test suites.</li><li>Work closely with application and platform teams to ensure smooth integration between application layer and underlying platforms. Coordinate interface points, like application access to platform services and support in new feature development as needed.</li><li>Build prototypes to test architecture ideas and refine guidelines. Help teams resolve technical issues through hands-on support.</li><li>Team mentorship that includes strategy emphasis and alignment to organizational goals.</li></ul>What You Will Have:<ul><li>Analytical Thinking: Knowledge of techniques and tools that promote effective analysis; ability to determine the root cause of organizational problems and create alternative solutions that resolve these problems.</li><li>Effective Communications: Understanding of effective communication concepts, tools and techniques; ability to effectively transmit, receive, and accurately interpret ideas, information, and needs through the application of appropriate communication behaviors.</li><li>Teamwork: Knowledge of the necessity and value of teamwork; experience with; ability to work cooperatively towards shared goals and being supportive of others at all levels.</li><li>Technical Excellence: Knowledge of a given technology and various application methods; ability to develop and provide solutions to significant technical challenges.</li><li>Producing Results: Understanding of the criticality of getting things done in spite of current circumstances and the ability to utilize assigned resources and leverage back-channel resources (individuals or teams) to achieve or exceed planned outcomes.</li><li>Software Product Design/Architecture: Knowledge of software product design; ability to convert market requirements into the software product design.</li></ul>Top Candidates Will Have:<ul><li>Extensive experience in software design, development tools and activities; ability to produce software products or systems in line with product requirements.</li><li>Skilled in design of complex software systems, including defining module boundaries, choosing technologies in the role of a technical lead.</li><li>Demonstrated experience in RTOS/Linux software development, including real-time operating systems such as FreeRTOS.</li><li>Proficiency in testing framework like google test and embedded build system workflows</li><li>Strong scripting capabilities (Python, Bash) and debugging skills.</li><li>Ability to work independently and collaborate across embedded, validation, and systems engineering teams.</li><li>Accurately interpret ideas, information, and needs through the application of appropriate communication behaviors.</li></ul><ul><li>Advanced Degree in accredited Engineering, Computer Science, or Computer Engineering</li><li>High level of proficiency in programming languages like C, C&#43;&#43; and testing frameworks like Google test</li><li>Exposure to CI/CD systems (GitHub Actions, Jenkins, etc.).</li></ul><ul><li>Familiarity with AI-assisted development tools.</li><li>Ability to communicate technical information effectively with a diverse group  </li></ul>Additional Details:<ul><li>This position requires the candidate to work full-time at the Mossville, IL office.</li><li>Domestic relocation assistance is available for this position.</li><li>Visa sponsorship is available with this position.</li><li>Travel is 10%</li></ul>#LI<h3></h3><h3></h3>Summary Pay Range:$128,470.00 - $192,710.00Compensation 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.<ul><li>Medical, dental, and vision benefits*</li><li>Paid time off plan (Vacation, Holidays, Volunteer, etc.)*</li><li>401(k) savings plans*</li><li>Health Savings Account (HSA)*</li><li>Flexible Spending Accounts (FSAs)*</li><li>Health Lifestyle Programs*</li><li>Employee Assistance Program*</li><li>Voluntary Benefits and Employee Discounts*</li><li>Career Development*</li><li>Incentive bonus*</li><li>Disability benefits</li><li>Life Insurance</li><li>Parental leave</li><li>Adoption benefits</li><li>Tuition Reimbursement</li></ul>       * These benefits also apply to part-time employees<h3></h3><h3></h3>This position requires working onsite five days a week.<h3></h3><h3></h3>Relocation is available for this position.<h3></h3>Visa sponsorship is available for eligible applicants.<h3></h3><h3></h3>Posting Dates: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 <a href="http://flows.beamery.com/caterpillarinc/talcom" target="_blank">Talent Community</a>.

Embedded Software Engineering Specialist

Experience in RTOS/Linux software development, architecture guidelines, mentorship, and strong C/C++, testing (Google Test), scripting (Python/Bash), and CI/CD collaboration.

Career Area:EngineeringJob Description:Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you&#39;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&#39;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 Embedded Software Validation Engineer at its facility located at 2427 E Engine Drive, Chillicothe, IL 61523.Validate software, test, and create documentation in compliance with safety regulated software development processes. Programming of automated test scripts for HIL/dSpace Testbench based on functional software specifications. Develop, integrate, release, and validate production software for Excavation Division&#39;s primary platform using requirements management tools, implementation languages, and automation tooling platforms. Utilize model-based development tools, to perform system analysis and software design/validation. Perform on-machine or HIL development activities to ensure machine level performance and feature design targets are met. Provide continuous HIL hardware and software maintenance.REQS: This position requires a bachelor’s degree or foreign equivalent in Electrical Engineering, Electronics Engineering, Mechanical engineering or a related field and 3 years of experience in software validation or testing or related occupation. Alternatively, the employer will also accept a master’s degree, or foreign equivalent, in Electrical Engineering, Electronics Engineering, Mechanical engineering or a related field and 1 year of experience in software validation or testing or related occupation.Additionally, the applicant must have employment experience with: (1) Source control tools and software change management practices; (2) dSpace applications and Matlab/Simulink; (3) Agile software development processes and DevOps; (4) Communication protocols such as CAN and their support tools including but not limited to Vector CAN devices; (5) Hardware tools including multi-meters, debuggers, and oscilloscopes; (6) Testing/validating embedded control systems solutions; (7) Electro-hydraulics such as implements and hydrostatic systems; and (8) Automation tools such as Python or other equivalent.Applicants who are interested in this position should apply via <a href="http://www.caterpillar.com/careers" target="_blank">www.caterpillar.com/careers</a>, search [Embedded Software Validation Engineer / R0000360624 # - LI-DNI].<h3></h3><h3></h3>Summary Pay Range:$97,530.00 - $146,290.00Compensation 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.<ul><li>Medical, dental, and vision benefits*</li><li>Paid time off plan (Vacation, Holidays, Volunteer, etc.)*</li><li>401(k) savings plans*</li><li>Health Savings Account (HSA)*</li><li>Flexible Spending Accounts (FSAs)*</li><li>Health Lifestyle Programs*</li><li>Employee Assistance Program*</li><li>Voluntary Benefits and Employee Discounts*</li><li>Career Development*</li><li>Incentive bonus*</li><li>Disability benefits</li><li>Life Insurance</li><li>Parental leave</li><li>Adoption benefits</li><li>Tuition Reimbursement</li></ul>       * These benefits also apply to part-time employees<h3></h3><h3></h3>This position requires working onsite five days a week.<h3></h3><h3></h3><h3></h3>Visa Sponsorship is not available for this position.<h3></h3><h3></h3>Posting Dates:March 30, 2026 - July 28, 2026Any 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 <a href="http://flows.beamery.com/caterpillarinc/talcom" target="_blank">Talent Community</a>.

Embedded Software Validation Engineer

Bachelor’s in Electrical/Electronics/Mechanical engineering plus 3 years in software validation; or Master’s in same fields plus 1 year; experience with dSpace, MATLAB/Simulink, CAN, Python; Agile/DevOps; automation and test tooling.

Embedded Software Engineer

2 years software engineering/testing experience; bachelor's degree in CS or related engineering; U.S. work authorization; visa sponsorship available for eligible candidates.

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