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BAS Systems Design and Integration Engineer (HVAC)

AiRCO Mechanical

Round Rock, TX 78681 • $30.00 to $35.00 / hr • 9/11/2026

Job Description

Job Description
Are you the engineer who turns specs into rocksolid BAS designs?

Picture this: A new commercial project lands on your desk. The scope is ambitious, the budget is set, and the schedule is tight. You map the network, draft the SOOs, and deliver submittals so clear the field team can build from them without a doubt. If this sounds like your kind of challenge, Airco Mechanicalan MEP leader for 40+ years with 1,000+ teammateswants to meet you.

Your mission
  • Own Building Automation Controls design that aligns precisely with scope and budget while ensuring equipment compatibility.
  • Deliver endtoend BAS submittal packages: detailed riser diagrams, resilient network architecture, and physical pointtopoint wiring schematics for HVAC and electrical systems.
  • Author and validate Sequences of Operations (SOO) and confirm they meet system requirements.
  • Produce complete Bills of Material and professional engineered documents using AutoCAD and Microsoft Visio (CDT).
  • Engineer BAS solutions including load calculations, equipment selection, and multisystem integration.
  • Back the Sales team during estimation/bid with technical design input.
  • Team with Project Managers to generate RFIs; spot discrepancies in plans/specs early and resolve them.
  • Integrate controls using BACnet MSTP/IP, Modbus TCP/RTU, and LonWorks.
  • Keep immaculate records of design decisions, wiring diagrams, and software configurations.
  • Work independently with minimal supervision and lead large projects using standard tools, products, and practices.
  • Forecast and monitor your design labor to meet budget and forecast objectives.
  • Coordinate with customers and vendors to keep engineering accurate and on time.
  • Help manage project timeline, budget, and crossdiscipline coordination.
  • Recommend new products that lift functionality and value; support service engineering on existing building systems.
  • When assigned, develop and curate engineering standards libraries for both Bosch Building Technologies and the industry.
  • Other duties as assigned.
What you know
  • HVAC systems endtoend: unitary (RTUs, FCUs, VAVs), large air systems (AHUs, DOAS, MUA), hydronic systems incl. valve sizing, chiller plants (air and watercooled), cooling towers, and boiler plants with heat exchangers.
  • AutoCAD and Microsoft Visio (CDT) for drafting and documentation.
  • Best practices for producing fieldready documentation.
Bonus points
  • 2+ years programming with Tridium/Niagara, Spyder tool, EIKON, ECgfxProgram, and/or Controller Configuration Tool.
  • History proposing costeffective technical approaches.
  • Experience building/maintaining internal standards, libraries, or design/engineering best practices.
  • Background spanning both design and support/service engineering for installed systems.
What’s in it for you
  • Two weeks paid vacation in your first year
  • Paid holidays and sick leave
  • Excellent health, vision, and dental insurance with low employee cost
  • Life insurance (2 salary paid by company)
  • Shortterm and longterm disability insurance (companypaid)
  • Accidental death and dismemberment insurance
  • Optional additional life insurance
  • 401(k) with company match
  • Health Savings Accounts
  • Teladoc
  • Employee Assistance Program
  • Tuition reimbursement
How you’ll succeed

Communicate early and often, document obsessively, and turn ambiguity into crisp designs that installers trust. If that’s your style, you’ll thrive here.