Building Automation Systems Design Engineer

Capitol Mechanical•Sun Prairie, WI

1d•Onsite

About The Position

Capitol Automation, an authorized ABB dealer, designs, installs, maintains, and services building automation systems from project inception through completion. The company delivers energy-efficient and sustainable solutions for sites ranging from standalone facilities to multi-building complexes. The full-time Building Automation Systems Design Engineer role is based in Sun Prairie, Wisconsin. The engineer designs and develops Direct Digital Control (DDC)-based building automation systems supporting HVAC, lighting, and other facility operations. The role involves working with clients, sales, and field teams to gather requirements and develop system designs, documentation, and sequences of operation, while supporting installation, integration, and commissioning. The position also includes preparing project documentation and operation manuals, updating as-built drawings, and coordinating submittals with sales and field teams. Capitol Automation offers a competitive salary and benefits package, diverse projects with a sustainability focus, and professional development support.

Requirements

Demonstrated interest or experience in building automation systems design, documentation, and implementation; entry-level candidates with relevant internships, projects, or coursework are encouraged to apply.
Familiarity with BACnet, Modbus, and LonWorks protocols, 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 ability to work independently and as part of a team.
Strong communication and interpersonal skills.

Nice To Haves

A bachelor’s degree in engineering or a related field is preferred; equivalent industry experience or relevant coursework will 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, while building client relationships.