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HVAC Controls Design Specialist — BAS Documentation

Job in Round Rock, Williamson County, Texas, 78682, USA
Listing for: AiRCO Mechanical Ltd.
Full Time position
Listed on 2026-11-04
Job specializations:
  • Engineering
    CAD/ AutoCAD/ Mechanical Design, Automation & Mechatronics Engineer, Systems Engineer
Salary/Wage Range or Industry Benchmark: 90000 - 130000 USD Yearly USD 90000.00 130000.00 YEAR
Job Description & How to Apply Below

Shape smarter buildings with precise BAS design and submittals

Why you’ll love working here
  • Professional, technical, and financial growth in a thriving Building Automation group.
  • Impact across commercial projects where quality documentation drives installation success.
  • Access to modern tools and a collaborative team that values initiative.
What you’ll do
  • Translate scope, budget, and contract documents into compliant Building Automation Controls designs.
  • Develop full BAS submittal packages: detailed riser diagrams, network architecture, and physical point‑to‑point wiring schematics for HVAC and electrical systems.
  • Create and validate Sequences of Operations (SOO) to ensure performance requirements are met.
  • Produce accurate Bills of Material and polished engineered documents using AutoCAD and Microsoft Visio (CDT).
  • Perform BAS system design: load calculations, equipment selection, and control system integration.
  • Support the Sales team during estimation and bid phases with design input.
  • Collaborate with Project Managers to craft RFIs; identify and resolve plan/spec discrepancies.
  • Integrate protocols expertly: BACnet MSTP/IP, Modbus TCP/RTU, and Lon Works.
  • Maintain meticulous documentation for design systems, wiring diagrams, and software configurations.
  • Independently execute large, complex projects using standard tools and practices with smart deviations where appropriate.
  • Forecast required design labor and track against budget and forecast goals.
  • Coordinate with external customers and vendors to ensure accuracy and timeliness.
  • Assist with project timeline, budget, and cross‑team coordination.
  • Recommend products that add functionality and value; support service engineering for existing buildings.
  • When assigned, develop and maintain engineering standards libraries for both Bosch Building Technologies and the industry.
  • Other duties as assigned.
Must‑have capabilities
  • Deep HVAC knowledge: RTUs, FCUs, VAV boxes; AHUs, DOAS, MUA; hydronic systems with valve sizing; chiller plants (air‑cooled/water‑cooled), cooling towers; boiler plants with heat exchangers.
  • Proficiency in AutoCAD and Microsoft Visio (CDT).
  • Strong documentation habits and attention to detail.
Preferred qualifications
  • 2+ years programming experience with Tridium/Niagara, Spyder tool, EIKON, EC‑gfx Program, and/or Controller Configuration Tool.
  • Track record proposing cost‑effective technical solutions.
  • Experience maintaining internal standards, libraries, or best practices for design/engineering.
  • Background in both design and support/service engineering for installed building systems.
Benefits and support
  • Two weeks paid vacation in year one
  • Paid holidays and sick leave
  • Excellent health, vision, and dental insurance with low employee cost
  • Life insurance (2× salary paid by company)
  • Short‑term and long‑term disability insurance (company‑paid)
  • Accidental death and dismemberment insurance
  • Optional additional life insurance
  • 401(k) with company match
  • Health Savings Accounts
  • Teladoc
  • Employee Assistance Program
  • Tuition reimbursement
How we work
  • Operate with minimal supervision and high ownership.
  • Communicate proactively through RFIs and coordination with PMs, vendors, and customers.
  • Balance precision with progress—hit schedule and budget targets without compromising quality.
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