Explore 3 senior python developer jobs from 3 hiring companies in Butterfield, MN, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Senior Python Developer

Saint James

New Ulm

Mankato

Fairmont

North Mankato

Worthington

Mountain Lake

Windom

Saint Peter

Estherville

Sleepy Eye

Jackson

Spirit Lake

Redwood Falls

Madelia

Springfield

Lake Crystal

Blue Earth

Milford

Senior Python Developer Jobs

AspenTech

Rolls-Royce

Rolls-Royce Power Systems

Onsite

<div><div><div><div><div><div><div><h2><br /><b>Job Description</b></h2></div></div></div></div></div></div></div><p><b>Title: Sr. Systems Software Engineer </b></p><p><i>Pioneer the next generation of innovation. Join us and you’ll develop your skills and expertise to the very highest levels, working in an international environment for a company known the world over for its brilliance. </i></p><p></p><p><b>Position Summary: </b></p><p>This position performs engineering work related to research, designing, and development of new products and interfacing the Automation Web systems related to Genset operation. Functions include:</p><p></p><p><b>Key Accountabilities:</b> </p><ul><li>Lead the design, development, and maintenance of scalable, high-performance software applications using C&#43;&#43;, C#, and Python.</li><li>Architect modular, maintainable codebases aligned with software engineering best practices and design patterns.</li><li>Build and integrate RESTful APIs and microservices to enable real-time data processing, automation, and seamless system interoperability.</li><li>Develop and deploy machine learning, Generative AI, and Large Language Models (LLMs) to enhance automation, intelligent interfaces, and analytics capabilities.</li><li>Design, deploy, and manage cloud infrastructure on AWS, ensuring robustness, scalability, and cost-efficiency.</li><li>Ensure software solutions are deployed in highly secure, compliant environments adhering to relevant industry standards.</li><li>Collaborate effectively with cross-functional teams, including product, QA, and operations—to deliver end-to-end software solutions that meet business objectives.</li><li>Develop and maintain CI/CD pipelines and automated testing frameworks to enable rapid, reliable software delivery.</li><li>Apply security best practices throughout the software development lifecycle, including identity management, encryption, secure coding, and threat mitigation.</li><li>Monitor and optimize system performance through profiling, concurrency management, and code refactoring.</li><li>Participate in security audits and compliance reviews to maintain adherence to industry and regulatory standards.</li></ul><p></p><p><b>Basic Requirements:  </b></p><ul><li>Applicants must be authorized to work for any employer in the U.S without sponsorship. We are unable to sponsor or take over sponsorship of an employment Visa at this time</li><li>Bachelor’s degree in engineering, Computer Science, or a related field, with 5&#43; years of experience in Genset manufacturing or a similar industrial environment; or 9&#43; years of relevant software engineering experience.</li></ul><p></p><p><b>Preferred Qualifications: </b></p><ul><li>Advanced proficiency in C&#43;&#43;, C#, and Python, with deep knowledge of object-oriented design, design patterns, concurrency, and memory management.</li><li>Proven experience designing, implementing, and maintaining RESTful APIs and microservices, including secure authentication/authorization (OAuth, JWT) and efficient inter-service communication (gRPC, message queues).</li><li>Strong command of AWS services such as Lambda, EC2, S3, RDS, DynamoDB, SageMaker, and CloudFormation; familiarity with infrastructure-as-code tools like Terraform or CloudFormation for automated, repeatable deployments.</li><li>Skilled in developing, training, fine-tuning, and deploying machine learning models, Generative AI, and Large Language Models (LLMs) using PyTorch, with hands-on experience in model lifecycle management and deployment automation.</li><li>Expertise in relational (PostgreSQL, MySQL) and NoSQL (DynamoDB, InfluxDB) databases, including schema design, indexing, replication, and performance tuning.</li><li>Experienced in building and maintaining CI/CD pipelines using Jenkins, GitHub Actions, GitLab CI, with strong skills in automated testing, container builds, and deployment automation.</li><li>Working knowledge of Docker and Kubernetes, including deployment manifests, Helm charts, and cluster management best practices.</li><li>Proficient with Git workflows (branching, pull requests, code reviews) and collaborative development in distributed teams.</li><li>Deep understanding of secure coding principles, identity and access management (IAM), encryption standards (TLS/SSL), and vulnerability mitigation.</li><li>Experience deploying applications within regulated environments, ensuring compliance with ISO 27001, NIST, GDPR, or equivalent frameworks.</li><li>Skilled in conducting security audits, vulnerability assessments, and implementing remediation strategies.</li><li>Solid knowledge of Agile methodologies (Scrum, Kanban) and software development lifecycle (SDLC) processes.</li><li>Familiarity with HTML5, CSS3, and modern JavaScript frameworks (React, Angular, Vue.js) for HMI customization is advantageous.</li></ul><p></p><p>Rolls-Royce is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to any protected characteristics.</p><p></p><p>At Rolls-Royce, we are committed to creating a workplace where all employees feel respected, supported, and empowered to do their best work. We foster a welcoming and innovative work environment that invests in you, giving you access to an incredible breadth and depth of opportunities where you can grow your career and make a difference. </p><p></p><div><div><div><div><div><div><div><h2><br /><b>Job Category</b></h2></div></div></div></div></div></div></div>Software Systems<div><div><div><div><div><div><div><h2><br /><b>Job Posting Date</b></h2></div></div></div></div></div></div></div>18 Mar 2026; 00:03<div><div><div><div><div><div><div><h2><br /><b>Pay Range</b></h2></div></div></div></div></div></div></div>$90,985 - $147,850-Annually<div><div><div><div><div><div><div><p><br /><b>Location:</b></p></div></div></div></div></div></div></div>Mankato, MN<p><br /><b>Benefits</b></p><p>Rolls-Royce provides a comprehensive and competitive Total Rewards package that includes base pay and a discretionary bonus plan. Eligible employees may have the opportunity to enroll in other benefits, including health, dental, vision, disability, life and accidental death &amp; dismemberment insurance; a flexible spending account; a health savings account; a 401(k) retirement savings plan with a company match; Employee Assistance Program; Paid Time Off; certain paid holidays; paid parental and family care leave; tuition reimbursement; and a long-term incentive plan. The options available to an employee may vary depending on eligibility factors such as date of hire, employment type, and the applicability of collective bargaining agreements.</p>

Sr. Systems Software Engineer

Senior Systems Software Engineer

Bachelor’s in engineering or computer science; 5+ years in Genset manufacturing or related, or 9+ years software experience; must be eligible to work in the U.S. without sponsorship.

<div><div><div><div><div><div><div><h2><br /><b>Job Description</b></h2></div></div></div></div></div></div></div><p><b>Title: Sr. Systems Software Engineer </b></p><p><i>Pioneer the next generation of innovation. Join us and you’ll develop your skills and expertise to the very highest levels, working in an international environment for a company known the world over for its brilliance. </i></p><p></p><p><b>Position Summary: </b></p><p>This position performs engineering work related to research, designing, and development of new products and interfacing the Automation Web systems related to Genset operation. Functions include:</p><p></p><p><b>Key Accountabilities:</b> </p><ul><li>Lead the design, development, and maintenance of scalable, high-performance software applications using C&#43;&#43;, C#, and Python.</li><li>Architect modular, maintainable codebases aligned with software engineering best practices and design patterns.</li><li>Build and integrate RESTful APIs and microservices to enable real-time data processing, automation, and seamless system interoperability.</li><li>Develop and deploy machine learning, Generative AI, and Large Language Models (LLMs) to enhance automation, intelligent interfaces, and analytics capabilities.</li><li>Design, deploy, and manage cloud infrastructure on AWS, ensuring robustness, scalability, and cost-efficiency.</li><li>Ensure software solutions are deployed in highly secure, compliant environments adhering to relevant industry standards.</li><li>Collaborate effectively with cross-functional teams, including product, QA, and operations—to deliver end-to-end software solutions that meet business objectives.</li><li>Develop and maintain CI/CD pipelines and automated testing frameworks to enable rapid, reliable software delivery.</li><li>Apply security best practices throughout the software development lifecycle, including identity management, encryption, secure coding, and threat mitigation.</li><li>Monitor and optimize system performance through profiling, concurrency management, and code refactoring.</li><li>Participate in security audits and compliance reviews to maintain adherence to industry and regulatory standards.</li></ul><p></p><p><b>Basic Requirements:  </b></p><ul><li>Applicants must be authorized to work for any employer in the U.S without sponsorship. We are unable to sponsor or take over sponsorship of an employment Visa at this time</li><li>Bachelor’s degree in engineering, Computer Science, or a related field, with 5&#43; years of experience in Genset manufacturing or a similar industrial environment; or 9&#43; years of relevant software engineering experience.</li></ul><p></p><p><b>Preferred Qualifications: </b></p><ul><li>Advanced proficiency in C&#43;&#43;, C#, and Python, with deep knowledge of object-oriented design, design patterns, concurrency, and memory management.</li><li>Proven experience designing, implementing, and maintaining RESTful APIs and microservices, including secure authentication/authorization (OAuth, JWT) and efficient inter-service communication (gRPC, message queues).</li><li>Strong command of AWS services such as Lambda, EC2, S3, RDS, DynamoDB, SageMaker, and CloudFormation; familiarity with infrastructure-as-code tools like Terraform or CloudFormation for automated, repeatable deployments.</li><li>Skilled in developing, training, fine-tuning, and deploying machine learning models, Generative AI, and Large Language Models (LLMs) using PyTorch, with hands-on experience in model lifecycle management and deployment automation.</li><li>Expertise in relational (PostgreSQL, MySQL) and NoSQL (DynamoDB, InfluxDB) databases, including schema design, indexing, replication, and performance tuning.</li><li>Experienced in building and maintaining CI/CD pipelines using Jenkins, GitHub Actions, GitLab CI, with strong skills in automated testing, container builds, and deployment automation.</li><li>Working knowledge of Docker and Kubernetes, including deployment manifests, Helm charts, and cluster management best practices.</li><li>Proficient with Git workflows (branching, pull requests, code reviews) and collaborative development in distributed teams.</li><li>Deep understanding of secure coding principles, identity and access management (IAM), encryption standards (TLS/SSL), and vulnerability mitigation.</li><li>Experience deploying applications within regulated environments, ensuring compliance with ISO 27001, NIST, GDPR, or equivalent frameworks.</li><li>Skilled in conducting security audits, vulnerability assessments, and implementing remediation strategies.</li><li>Solid knowledge of Agile methodologies (Scrum, Kanban) and software development lifecycle (SDLC) processes.</li><li>Familiarity with HTML5, CSS3, and modern JavaScript frameworks (React, Angular, Vue.js) for HMI customization is advantageous.</li></ul><p></p><p>Rolls-Royce is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to any protected characteristics.</p><p></p><p>At Rolls-Royce, we are committed to creating a workplace where all employees feel respected, supported, and empowered to do their best work. We foster a welcoming and innovative work environment that invests in you, giving you access to an incredible breadth and depth of opportunities where you can grow your career and make a difference. </p><p></p><div><div><div><div><div><div><div><h2><br /><b>Job Posting Date</b></h2></div></div></div></div></div></div></div>18 Mar 2026; 00:03<div><div><div><div><div><div><div><h2><br /><b>Pay Range</b></h2></div></div></div></div></div></div></div>$90,985 - $147,850-Annually<div><div><div><div><div><div><div><p style="text-align:left"><br /><b>Location:</b></p></div></div></div></div></div></div></div>Mankato, MN<p style="text-align:inherit"></p><p style="text-align:left"><b>Benefits</b></p><div><div><div><div><div><div><div><p>Rolls-Royce provides a comprehensive and competitive Total Rewards package that includes base pay and a discretionary bonus plan. Eligible employees may have the opportunity to enroll in other benefits, including health, dental, vision, disability, life and accidental death &amp; dismemberment insurance; a flexible spending account; a health savings account; a 401(k) retirement savings plan with a company match; Employee Assistance Program; Paid Time Off; certain paid holidays; paid parental and family care leave; tuition reimbursement; and a long-term incentive plan. The options available to an employee may vary depending on eligibility factors such as date of hire, and employment type.</p></div></div></div></div></div></div></div><p style="text-align:inherit"></p><p style="text-align:left"><b><span>The Business Unit<b> <span class="emphasis-3">Power Systems of Rolls-Royce</span></b> provides world-class power solutions and complete life-cycle support under our product and solution brand </span><i>mtu</i><span>. Through digitalization and electrification, we strive to develop drive and power generation solutions that are even cleaner and smarter and thus provide answers to the challenges posed by the rapidly growing societal demands for energy and mobility.</span></b><br /> </p><p style="text-align:left"><b><span>We deliver and service comprehensive, powerful and reliable systems, based on both gas and diesel engines, as well as electrified hybrid systems. These clean and <span><span><span><span><span><span><span><span><span><span class="WBK1">technologically-advanced</span></span></span></span></span></span></span></span></span></span> solutions serve our customers in the marine and infrastructure sectors worldwide.</span></b></p>

Bachelor’s degree in engineering or computer science with 5+ years in Genset manufacturing or similar industrial environment; or 9+ years software engineering.

<p style="text-align:left">The driving force behind our success has always been the people of AspenTech. What drives us, is our aspiration, our desire and ambition to keep pushing the envelope, overcoming any hurdle, challenging the status quo to continually find a better way. You will experience these qualities of passion, pride and aspiration in many ways — from a rich set of career development programs to support of community service projects to social events that foster fun and relationship building across our global community.</p><p style="text-align:inherit"></p><p style="text-align:inherit"></p><h2><b>The Role</b></h2>AspenTech is a global software leader helping industries meet the increasing demand for resources from a rapidly growing population in a profitable and sustainable manner. Our Digital Grid Management software suite, including AspenTech products, helps power and utilities companies achieve superior real-time control, optimization and management for exceptional performance of complex energy networks.<br>As a Sr. Project Engineer, you will be responsible for end-to-end delivery of SCADA/EMS/GMS/ADMS projects using the monarch platform, including planning / design / integration / testing / training / and commissioning at site. A good understanding of utility use-cases (Electricity / Gas / Water / Renewables) is preferred.  Additional responsibilities will include:<p style="text-align:inherit"></p><p style="text-align:inherit"></p><h2><b>Your Impact</b></h2><ul><li><p>Design, plan, integrate, test and commission hardware and software requirements on customer systems.</p></li><li><p>Perform installation, integration, and testing of the hardware, software and system.</p></li><li><p>Own troubleshooting efforts for discovered variances and deploy resolutions in a timely manner.</p></li><li><p>Define project requirements through customer communication and communicate the requirements to other departments, as necessary.</p></li><li><p>Work as the project technical lead responsible for deploying complex and dynamic control systems.</p></li><li><p>Provide networking and system/application design.</p></li><li><p>Customize system, hardware and network configuration based on customer requirements.</p></li><li><p>Provide customer support and assistance per contract maintenance and warranty.</p></li><li><p>Assist in creating training materials and project documentation as needed.</p></li></ul><p style="text-align:inherit"></p><p style="text-align:inherit"></p><h2>What You'll Need</h2><ul><li><p>Bachelor of Science in Electrical Engineering, Computer Engineering, Physics, Systems Engineering or related field.</p></li><li><p>Strong technical background in automation and computers with at least 5 years of relevant experience.</p></li><li><p>Experience in one or more of the following: power systems, electric utility operations/dispatch, real-time control systems, client/server applications, network communications, UNIX / Linux / Windows operating systems.</p></li><li><p>Experience in software programming and scripting (Python, C / C&#43;&#43;).</p></li><li><p>Experience with the implementation of AspenTech DGM (OSI monarch) suite of software. </p></li></ul><p></p><p></p>The salary range for this role is $87,700.00 - $109,600.00. This range represents what we in good faith believe is the range possible for base compensation for this role at the time of this posting. We may ultimately pay more or less than the posted range based on several factors. This range may be modified in the future. This role is also eligible for bonus or variable incentive pay. Additionally, we offer a comprehensive benefits package including paid time off, charitable giveback day, medical/dental/vision insurance, and retirement benefits to eligible employees.

Sr. Project Engineer

Bachelor’s degree in engineering or related field; 5+ years in automation/real-time control; experience with power/utility systems; programming in Python or C/C++; experience with AspenTech DGM (OSI Monarch).

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