Explore 5 python software engineer jobs from 3 hiring companies in Centralia, IL, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Python Software Engineer

Mount Vernon

Salem

Wamac

Central City

O'Fallon

Belleville

Collinsville

Fairview Heights

Edwardsville

Shiloh

Highland

Swansea

Glen Carbon

Troy

Vandalia

Greenville

Mascoutah

Carlyle

Breese

Python Software Engineer Jobs

Caterpillar

Chenega Corporation

Netrist Solutions

Onsite

Hybrid

Mid Software Developer

Bachelor's with 4+ yrs or Master's with 2+ yrs; TS/SCI clearance preferred; AWS, Python, React, C#, DevOps, Linux, RDS, Open API experience.

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 In this role as a Control Systems Senior Engineer, you will have the responsibility for working on multiple projects in the Cat Technology’s Machine Technology Platform Group. These projects will typically include evaluating new technologies, incorporating process improvements, or a variety of other initiatives related to subsystems on current and future Caterpillar machines. This individual will play a role in building innovative and scalable solutions that enable seamless data flow between onboard and offboard systems. Responsibilities<ul><li>Gather and analyze user/client requirements to create the software specifications for components and subsystems used across several products.</li><li>Drive design consistency across products.</li><li>Participate in software architecture discussions and engage appropriate SMEs to effectively resolve technical issues.</li><li>Guide projects through the planning, development and validation process.</li><li>Oversee project progress and costs; communicate status with stakeholders and participating functional areas; addressing and resolving problems.</li><li>Communicate with internal customers and managing expectations; ensuring effective use of project controls and reporting mechanisms.</li><li>Keep up with industry trends and new technology breakthroughs by continuous learning. </li><li>Build dashboards providing visibility into software quality, validation progress, and development maturity</li></ul>Skill Descriptors<ul><li>Embedded Systems: Knowledge of embedded systems and their applications; ability to develop embedded systems with varying levels of complexity to control the operations of the machine it is embedded within.</li><li>Technical Troubleshooting: Knowledge of technical troubleshooting approaches, tools and techniques; ability to anticipate, recognize, and resolve technical issues on hardware, software, application or operation.</li><li>Communicating Complex Concepts: Knowledge of effective presentation tools and techniques to ensure clear understanding; ability to use summarization and simplification techniques to explain complex technical concepts in simple, clear language appropriate to the audience.</li><li>Problem Solving: Knowledge of approaches, tools, techniques for recognizing, anticipating, and resolving organizational, operational or process problems; ability to apply knowledge of problem solving appropriately to diverse situations.</li><li>Requirements Analysis: Knowledge of tools, methods, and techniques of requirement analysis; ability to elicit, analyze and record required business functionality and non-functionality requirements to ensure the success of a system or software development project.</li></ul>Top Candidates Will Have:<ul><li>Requires a degree in an accredited Engineering or Computer Science curriculum or equivalent experience</li><li>Knowledge of software development life cycle</li><li>Proficiency in C/C&#43;&#43; for embedded systems using RTOS or embedded Linux.</li><li>Strong scripting capabilities (Python, Bash)</li><li>Familiarity with requirements tools (DOORS, Jama, or similar)</li><li>Familiarity with AI-assisted development tools.</li></ul>#LI<h3></h3><h3></h3>Summary Pay Range:$112,710.00 - $169,060.00Compensation 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 not available for this position.<h3></h3><h3></h3>Posting Dates:April 26, 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>.

Control Systems Senior Engineer

Senior control systems engineer with embedded systems, software development in C/C++, scripting (Python, Bash); knowledge of RTOS/embedded Linux; experience with requirements tools; AI-assisted development tools.

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.The Embedded Product Cybersecurity team is developing embedded cybersecurity solutions &amp; software for Caterpillar Display, Telematics, Machine, Engine, &amp; Autonomy product lines that will be used for years to come. The ideal candidate will be passionate about developing cybersecurity software solutions for Caterpillar’s embedded product line. They must also be willing to learn new areas of expertise in cybersecurity while working with multiple systems, software, component, and product teams to produce world class cybersecurity solutions for Caterpillar.  What You Will Do:<ul><li>Lead a team of approximately 15 with responsibility to design, develop, configure, and test our security-enabling software that targets a wide range of scopes, including full-stack ECU component software, system-wide onboard security software, offboard internal development tools, and ECU supplier manufacturing tools.</li><li>Participate in iterative development and fast delivery of features utilizing up-to-date technologies and practices like Linux, Python, C/C&#43;&#43;, Agile, and emergent design.</li><li>Design &amp; Document Cybersecurity features</li><li>Develop Embedded Cybersecurity solutions that will be implemented in C/C&#43;&#43;, Java, and Python languages</li><li>Validate Embedded Cybersecurity software features used across Caterpillar’s product line</li><li>Lead the team to assess and identify Cybersecurity software risks</li></ul>What You Will Have: <ul><li>Requirements Analysis: Knowledge of tools, methods, and techniques of requirement analysis; ability to elicit, analyze and record required business functionality and non-functionality requirements to ensure the success of a system or software development project.</li><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>Software Development: Knowledge of software design and development tools and activities; ability to produce software products or systems in line with product requirements.</li><li>Technical Troubleshooting: Knowledge of technical troubleshooting approaches, tools and techniques; ability to anticipate, recognize, and resolve technical issues on hardware, software, application or operation</li></ul>Top Candidates Will Also Have:<ul><li>Advanced degree in Electronics Technology, Electrical/Computer Engineering, Computer Science, or a related field.</li><li>Strong people interaction, teamwork, communication, and computer skills are required.</li><li>The candidate must be detail oriented and a proven “self starter,” with a strong record of achievement and results.</li><li>Solid experience with communication networks including Ethernet, J1939 Proprietary, Cat Data Link, and various data link protocols.</li><li>Extensive experience with design and development process of Data Link Communication Protocols</li><li>Desire to work in a fast-paced Agile team environment</li><li>Experience in Cybersecurity</li><li>Experience with GIT configuration management tool</li><li>Ability to read electrical schematics</li><li>Experience with RTOS development (i.e. Free RTOS)</li><li>Experience with CAN, J1939, and other data link protocols</li><li>Experience using Design Patterns and Object-Oriented programming</li><li>Experience with developing Unit Tests and Test-Driven Development</li><li>Experience using debugging tools for embedded systems (e.g. Lauterbach, GDB)</li></ul>Additional Information:<ul><li>The location for this position is Mossville, IL.  This role is on-site Monday to Friday.</li><li>Domestic relocation assistance is available for this position.</li><li>Sponsorship will NOT be offered for this position</li><li>This position may require less than 10% travel.</li></ul>#LI<h3></h3><h3></h3>Summary Pay Range:$147,760.00 - $221,640.00Compensation 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 not available for this position.<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 Senior Specialist - Cybersecurity

Embedded Software Engineering

Lead a cybersecurity-focused embedded software team; design, develop, test, and document cybersecurity features for Caterpillar embedded products.

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.Your Work Shapes the World at Caterpillar Inc.  When you join Caterpillar, you’re joining a global team who care not just about the work we do – but also about each other.  We are the makers, problem solvers and future work 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.Cat Technology collaborates with partners across the Caterpillar enterprise to advance technologies including autonomy and automation, which helps enhance site safety, productivity and efficiency across customer operations worldwide. Cat Technology also owns enterprise-wide initiatives in innovation, research and development, manufacturing automation and advanced materials, ensuring Caterpillar continues to lead the industry in technological excellence and engineering innovation.  As an Electronic Systems Verification and Validation Senior Engineer for Caterpillar’s Intelligent Machine Systems team within the CAT Technology Division (Mossville, IL – Building AC) you&#39;re responsible for verifying and validating embedded software that goes onto our MTTT machines. You will develop deep expertise in Caterpillar’s electrical and electronic systems and use both Software in the Loop (SiL) and Hardware in the Loop (HiL) methodologies to execute system integration testing. Your work ensures the delivery of high-quality software to our internal and external customers. Additional Information:<ul><li>Location:  Mossville, IL (United States)</li><li>Required Travel: Up to 10% (Domestic)</li><li>Relocation Assistance Offered: Domestic</li><li>US Work Sponsorship Offered: Yes</li></ul>What You Will Do:•   Work alongside our MTTT team lead, MTTT team members and offshore team members to implement processes and activities associated with the design and testing of SiL and HiL benches for machine level integration testing  •    Ensure all test infrastructure is properly version controlled and documented, including harness documentation, bench design and setup, Matlab and plant models, ControlDesk layouts, and other test related activities  •    Work with MTTT test lead, machine system coordinators, and electronic system design engineers to define testing priorities and determine test coverage  •    Work with system engineers to understand machine feature requirements, develop test plans, implement test plans, perform testing regression, document test result and troubleshoot new software features as needed  •    Perform software regression, delta content testing, and properly document test results to meet compliance with functional safety requirements and ISO 9001 requirements  •    Document test process and results; prepare and analyze software defect-tracking reports   •    Develop product-testing procedures such as identification and implementation of new bench capabilities by participating in selecting the next generation of test environment and tools  •    Develop automated test scripts to improve testing efficiency in both the HiL and SiL environmentsWhat You Will Have (Basic Requirements):• Education Requirement: Degree or advanced degree in an accredited Engineering degree in Electrical Engineering, Mechanical Engineering, Computer Engineering or Computer Science• Technical Excellence: Knowledge of a given technology and various application methods; ability to develop and provide solutions to significant technical challenges.   • Product Testing: Knowledge of product testing approaches, techniques and tools; ability to design, plan and execute testing strategies and tactics to ensure product quality at all stages of manufacturing.   • 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.   • 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. What Will Set You Apart (Top Candidates Will Have):<ul><li>Strong hands-on experience with dSPACE test equipment and Automation Desk </li><li>Strong experience with Opal test equipment </li><li>Strong experience with SIL and Googletest </li><li>Strong experience with software version control such as Git &amp; Ivy </li><li>Strong experience with Python scripting such as PyTest </li><li>Software development experience utilizing C, C&#43;&#43;, or Simulink </li><li>Solid working experience in the design, development, or testing of embedded systems.  </li><li>Excellent working knowledge of product testing approaches, techniques and tools; ability to design, plan and execute testing for L6 machine level software integration </li><li>Excellent working knowledge of dSPACE hardware, ControlDesk, Automation Desk, Matlab/Simulink for IO simulation of sensor components and plant modelling, and Dynasty for closed-loop testing. </li><li>Excellent knowledge of designing and commission complex HiL test benches using dSPACE hardware and other hardware as needed. </li><li>Excellent working knowledge of CAN, J1939, Ethernet, TCP/IP, LIN, and other datalink protocols for software integration testing. </li><li>Excellent working knowledge of CAN Based data acquisition tools (such as Vector CANape and CANalyzer or equivalent) </li><li>Excellent working knowledge in Python and C/C&#43;&#43; for test script automation </li><li>Advise and work with global team members to troubleshoot and design next generation HiL benches </li><li>Mentor junior engineers to improve their technical proficiency to improve team’s overall performance </li><li>Complete tasks with high precision, accuracy, and quality </li><li>Good working knowledge of the embedded software development cycle </li></ul>What You Will Get:Through it all, we are <a href="https://www.youtube.com/watch?v&#61;mYIDne7Q5ek&amp;list&#61;PLwAXbfivFg0jmiNqqgFLeQJpRB_i-UVln&amp;index&#61;39" target="_blank">one team</a> – creating and delivering world-class components and solutions superior to the competition.  Learn more about the <a href="https://www.youtube.com/watch?v&#61;GvCYWtWARlk&amp;list&#61;PLwAXbfivFg0jmiNqqgFLeQJpRB_i-UVln&amp;index&#61;25" target="_blank">Caterpillar Experience</a>.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.#LI#BI<h3></h3><h3></h3>Summary Pay Range:$112,710.00 - $169,060.00Compensation 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:April 25, 2026 - May 4, 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>.

Electronic Systems Verification & Validation Senior Engineer

Electronic Systems Verification and Validation Engineer

Embedded software verification/validation, SiL/HiL, MATLAB/Simulink, test planning, defect tracking; Engineering degree required.

We are seeking a Senior Full
Stack Developer (Backend Emphasis) to support a command and control system for
the Mobility Air Force. This role focuses on designing and maintaining mission
critical backend services in Java and .NET, building and securing RESTful APIs,
and implementing cloud native patterns in Amazon GovCloud. You will work across
the entire stack, but your primary responsibility will be backend architecture,
service reliability, data integrity, and integration with cloud services. You will operate within an
Agile environment and mentor junior developers while contributing to evolving
DevSecOps pipelines and secure deployment practices. <div> </div><h3>What you will do </h3><ul><li style="">Design, implement, test, and deploy backend features
 using Java and .NET in AWS GovCloud. </li><li>Lead the development of RESTful services, API
 endpoints, and backend integration patterns. </li><li style="">Architect and implement microservices, serverless
 functions, and containerized workloads using AWS services such as Lambda,
 ECS, EKS, Fargate, and API Gateway. </li><li style="">Build and optimize data models, SQL queries, and
 relational database operations. </li><li style="">Participate in architecture reviews, design sessions,
 and backlog refinement. </li><li style="">Conduct code reviews and refactor existing backend
 components for scalability, maintainability, and security. </li><li style="">Integrate backend services into CI/CD pipelines with
 automated builds, tests, and scans. </li><li style="">Ensure secure coding practices and interpret output
 from static and dynamic security analysis tools. </li><li style="">Use scripting languages, including Python and Bash, to
 automate operational and deployment tasks. </li><li style="">Troubleshoot complex backend issues across application
 logic, integrations, data stores, and cloud resources. </li><li style="">Mentor team members in API design, backend
 architecture, and secure coding patterns. </li></ul><div> </div><h3>What we like to see </h3><ul><li style="">Deep experience with Java and .NET development in
 production environments. </li><li style="">Strong understanding of REST API design, service
 versioning, and integration testing. </li><li style="">Experience deploying and managing backend services in
 AWS using Lambda, ECS, ECR, CloudFormation, RDS, S3, CloudWatch, and IAM. </li><li style="">Experience with microservices or modular service
 architectures. </li><li style="">Strong debugging skills in distributed systems. </li><li style="">Experience working within DoD or regulated environments
 with security compliance requirements. </li><li style="">Comfortable working with minimal day-to-day direction
 and accountable for end to end delivery. </li></ul><div> </div><h3>You should be familiar with </h3><ul><li style="">Java (Spring Boot or similar frameworks) and .NET (Core
 or Framework). </li><li style="">SQL and relational database design. </li><li style="">Linux administration and scripting. </li><li style="">Containerization with Docker and orchestration
 patterns. </li><li style="">CI/CD tooling such as Jenkins, GitHub Actions, or
 GitLab CI. </li><li style="">Cloud networking, IAM policies, and secure cloud
 deployment models. </li><li style="">Basic front end technologies for full stack
 integration, including HTML, CSS, and JavaScript. </li><li style="">OpenAPI Spec 3.x and automated code generation </li><li style="">Agile methodology. </li></ul> <h3>Requirements</h3><ul><li style="">Minimum Experience: 5+ years of professional
 development, including at least 3 years of Java development. </li><li style="">Experience owning backend services or components in
 production. </li><li style="">Bachelor’s degree in Computer Science, Engineering, or
 related field, or equivalent experience. </li><li style="">Ability to obtain or maintain a government security
 clearance. </li><li style="">Prior DoD or federal experience is strongly preferred. </li></ul><div> </div><div> </div>This
position is eligible for remote work in
the St. Louis area. However,
the position requires a government security clearance, so candidates must be U.S. citizens and eligible for work without a visa sponsorship. <h3>Benefits</h3><ul class="wp-block-list" style="color:rgb(23, 27, 39); font-family:PuviRegular, sans-serif; font-size:14px; font-style:normal; font-weight:400; letter-spacing:normal; orphans:2; text-indent:0px; text-transform:none; widows:2; word-spacing:0px; white-space:normal; background-color:rgb(255, 255, 255)"><li>Competitive Salary </li><li>Paid Time Off </li><li>Paid Federal Holidays </li><li>401K with matching </li><li>100% Paid Medical, Dental, Vision, Long &amp; Short Term Disability, and Basic Life </li><li>Flexible Spending Account </li><li>Health Reimbursement Arrangement </li><li>Work From Home Options </li><li>Education Assistance </li></ul><div> </div>

Senior Full Stack Developer - Back End

Full Stack Developer

5+ years of professional development; 3+ years in Java; backend ownership in production; DoD/federal experience preferred; government clearance required.

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