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Machine Solutions Inc. · 1 day ago

Software Engineer

Eden Prairie, MN

Full-time

Onsite

Senior Level, Lead/Staff

10+ years exp

Machine Solutions Inc. is a premier provider of advanced equipment and services for the medical device and biopharmaceutical industries. The Principal Software Engineer will lead the design and implementation of embedded control and automation software for complex medical device manufacturing equipment, focusing on microcontrollers and PLCs.

MedicalMedical Device

Responsibilities

Lead the design and implementation of real-time control systems for automated medical device manufacturing equipment

Define software architectures integrating microcontrollers, PLCs, motion controllers, sensors, and HMI systems

Design, implement, and optimize motion control systems for precision automation applications, including servo and stepper motor control

Provide technical guidance on hardware selection, control strategy, safety interlocks, and network communication protocols

Serve as the primary software technical authority during design reviews, risk assessments, and design verification activities

Develop and maintain embedded firmware in assembly/C/C++ for microcontrollers (e.g., 68000, ARM Cortex, Microchip, or Maxim Integrated)

Develop and maintain Windows Visual Studio HMI applications in C/C++/C#/C# WPF(for BW-TEC HMI)

Develop structured PLC software (Ladder Logic, Function Block Diagram, Structured Text) using Allen-Bradley, Beckhoff and Omron platforms

Implement deterministic communication between embedded controllers, PLCs, and supervisory systems (EtherNet/IP, Modbus, CAN, RS-485, SPI, I²C, etc.)

Develop user interfaces and operator controls through HMI systems for production environments

Ensure software modules are robust, maintainable, and traceable to design inputs and risk mitigations

Collaborate with mechanical, electrical, and process engineers to develop integrated control solutions for precision motion, fluidics, robotics, and safety systems

Participate in design verification and validation (V&V) testing, including protocol creation, execution, and documentation per QMS requirements

Support factory acceptance testing (FAT), site acceptance testing (SAT), and field support of deployed systems

Conduct root cause analysis and corrective action for software-related field or production issues

Contribute to the development of company-wide software standards for automation platforms and embedded systems

Qualification

Embedded systemsPLC programmingMicrocontroller programmingC/C++ programmingHMI developmentMotion control systemsAnalytical thinkingLeadership skillsProblem-solving skillsCommunication skills

Required

Solid working knowledge of microcontrollers (ARM Cortex, Microchip, STM32, etc.), PLCs (Beckhoff, Omron, Allen-Bradley, etc.), FPGAs, sensors, and communication interfaces (I2C, SPI, UART, CAN, Ethernet, Modbus, Profinet)

Strong understanding in Microsoft Visual Studio development using programming languages C, C++, C#, and C# WPF

Expert in IEC 61131-3 programming languages and embedded assembly/C/C++

Strong analytical and debugging skills using oscilloscopes, logic analyzers, and network tools

Excellent documentation, communication, and leadership skills

Ability to balance innovation with compliance and risk management

Strong leadership, communication, and mentoring abilities

Excellent problem-solving and analytical thinking

Collaborative and adaptable with cross-functional teams

Master's or bachelor's degree in computer science, Computer Engineering or related required

10+ years developing software for microcontroller and PLC based platforms with at least 3 years in a technical leadership or principal engineer capacity, or 8+ years with a Master's degree

Proven track record of bringing products from concept through production

Ability to read, analyze and interpret general business periodicals, professional journals, technical procedures, schematics, interconnects assembly and part drawings or governmental regulations

Ability to write reports, business correspondence and procedure manuals

Ability to present information and respond to questions from groups of managers, clients, and customers