Building Automation Systems Design Engineer

Capitol Mechanical•Sun Prairie, WI

About The Position

Capitol Automation, an authorized ABB dealer, designs, installs, maintains, and services building automation systems from project inception through completion. The company provides energy-efficient and sustainable solutions for facilities ranging from standalone sites to large multi-building complexes. The full-time Building Automation Systems Design Engineer is based in Sun Prairie, Wisconsin. The role designs and develops Direct Digital Control (DDC)-based building automation systems supporting HVAC, lighting, and other critical facility operations. The engineer works with clients, sales, and field teams to gather requirements and create system designs, documentation, and sequences of operation, while supporting installation, integration, and commissioning.

Requirements

  • Demonstrated interest or experience in building automation systems (BAS) design, documentation, and implementation.
  • Familiarity with BACnet, Modbus, and LonWorks, or a strong willingness to learn.
  • Proficiency in Visio, AutoCAD, and/or other building automation or design tools.
  • Experience with or understanding of system integration and troubleshooting.
  • Strong analytical and problem-solving skills.
  • High attention to detail and the ability to work independently and as part of a team.
  • Strong communication and interpersonal skills.

Nice To Haves

  • Relevant internships, projects, or coursework; entry-level candidates with these experiences are encouraged to apply.
  • A bachelor’s degree in engineering or a related field. Equivalent industry experience or relevant coursework will also be considered.

Responsibilities

  • Design panel layouts, electrical wiring diagrams, sequences of operation, point lists, and bills of materials.
  • Develop BAS system architecture, control diagrams, and documentation using tools such as AutoCAD and Visio.
  • Collaborate with clients, sales, and field teams to gather requirements and translate them into automation solutions.
  • Support system integration, troubleshooting, validation, commissioning, and ongoing technical support for BAS projects.
  • Maintain project documentation, develop operation manuals, and update as-built drawings.
  • Assist with submittal preparation and coordination with sales and field teams.
  • Build strong client relationships.

Benefits

  • Competitive salary and benefits package.
  • Opportunity to work on diverse, impactful projects with a focus on sustainability.
  • Support for professional development in the growing building automation field.
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