Motion Control Engineer

Who we are: At UST, we help the world’s best organizations grow and succeed through transformation. Bringing together the right talent, tools, and ideas, we work with our client to co-create lasting change. Together, with over 30,000 employees in 30+ countries, we build for boundless impact—touching billions of lives in the process.

Visit us at . Summary: UST is looking for core Motion Control Engineer Job Description: About the Role We are seeking a Motion Control Engineer to own the design, configuration, and optimization of multi-axis motion systems built on ACS Motion Control platforms. You will select the right motor, encoder, drive, and controller architecture for each application, then bring those systems to life — wiring, commissioning, programming, and tuning them to meet demanding accuracy, throughput, and reliability targets.

This role sits at the intersection of electrical design and controls software. You should be equally comfortable reading a schematic, pulling a scope trace on a servo loop, and writing ACSPL+ code.

What You'll Do

Motion system architecture and selection Size and select servo/stepper motors, linear and rotary, based on load, duty cycle, inertia ratio, and thermal budget Specify feedback devices — incremental and absolute encoders, resolvers, linear scales — matching resolution, interface (En. Dat, BiSS, Sin/Cos, A/B), and accuracy to the application Define the controller and drive architecture: ACS controller family, EtherCAT network topology, drive sizing, power supply and regen requirements Perform trade studies on cost, performance, and lead time; produce bills of material and vendor comparisons Configuration, programming, and tuning Configure ACS controllers and drives using Motion.

Boot, SPii. Plus MMI Application Studio, and related toolchains Develop motion applications in ACSPL+ — multi-axis coordinated motion, gantry and master/slave configurations, gearing, camming, PVT and spline trajectories, registration and triggered motion Tune servo loops — current, velocity, and position — using frequency response analysis, notch and low-pass filters, feedforward terms, and disturbance rejection techniques Characterize and correct settling time, following error, resonance, backlash, and cogging; validate against spec with data Implement safety and fault handling: limits, E-stop chains, STO, homing strategies, error recovery Electrical integration Produce and review motion control schematics, panel layouts, cable and harness drawings, and I/O maps Debug wiring, grounding, shielding, and EMI issues on the bench and on the machine floor Support panel build, wiring checkout, and power-on of new systems PLC and machine integration Program and integrate PLCs (Siemens TIA Portal, Rockwell Studio 5000, Beckhoff TwinCAT, or equivalent) that supervise or coordinate with the motion controller Implement fieldbus communication — EtherCAT, Ether.

Net/IP, PROFINET, Modbus TCP — between PLC, motion controller, HMI, and upper-level software Work with mechanical, software, and manufacturing engineering through design reviews, integration, and production ramp Document designs, tuning parameters, and commissioning procedures; support transfer to manufacturing and field service What You'll Bring Required Bachelor's degree in Electrical Engineering, Electrical & Electronics Engineering, Mechatronics, or a related discipline 7–8 years of hands-on experience in industrial motion control and automation Demonstrated experience with ACS Motion Control hardware and software — SPii.

Plus controllers/drives, ACSPL+ programming, MMI Application Studio Strong working knowledge of servo control theory: control loop structure, gain tuning, frequency response, stability margins, feedforward Proven ability to size and select motors, drives, and feedback devices from first principles rather than by catalog matching Solid electrical fundamentals: ability to create and interpret schematics and wiring diagrams, and to troubleshoot with a multimeter, oscilloscope, and controller trace tools PLC programming experience in at least one major platform, including ladder and structured text Familiarity with industrial networks, especially EtherCAT, and with machine safety concepts and standards Comfortable working hands-on in a lab or machine floor environment, including bring-up and debug of prototype hardware Preferred Experience with multi-axis gantry systems, dual-loop feedback, or direct-drive linear and torque motors Experience with other motion platforms (Beckhoff, Aerotech, Delta Tau/Power PMAC, Siemens, Rockwell) for comparison and migration work Knowledge of vibration analysis, mechanical resonance, and structural dynamics as they affect closed-loop performance Exposure to machine vision or sensor-triggered motion Experience supporting equipment through design-to-production transition What we believe : We’re proud to embrace the same values that have shaped UST since the beginning.

Since day one, we’ve been building enduring relationships and a culture of integrity. And today, it's those same values that are inspiring us to encourage innovation from everyone, to champion diversity and inclusion and to place people at the centre of everything we do. Humility: We will listen, learn, be empathetic and help selflessly in our interactions with everyone.

Humanity: Through business, we will better the lives of those less fortunate than ourselves. Integrity: We honour our commitments and act with responsibility in all our relationships. Equal Employment Opportunity Statement UST is an Equal Opportunity Employer. We believe that no one should be discriminated against because of their differences, such as age, disability, ethnicity, gender, gender identity and expression, religion, or sexual orientation.

All employment decisions shall be made without regard to age, race, creed, colour, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law.

UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.

• To support and promote the values of UST.
• Comply with all Company policies and procedures