HVAC CAD Designer

You want a say in the decision, not a task list handed down from a meeting you were not in. You want to open a project and see a blank page, not a template someone half-finished last week. When a client questions the sizing, you want the answer to be yours, backed by numbers you ran and can walk through out loud.

We’re looking for an HVAC CAD Designer in Boston, MA.

If that is how you want to spend your day, keep reading.

Tech Air is driven by a passion for creating healthier spaces through cutting-edge air systems to enhance environments in schools, hospitals, labs, and beyond. This role is how we bring that work into our own hands. Without a designer in this seat, we stay dependent on drawings handed to us. With one, we sit at the preconstruction table as a design partner.

We are working toward being the contractor of choice for even the most complex jobs by 2035. That goal shows up in the standard we hold the work to. We do it right. We finish the job. We back what we build.

Our core values are not posters on a wall. Adapt and Conquer means when a project shifts, you find the better way. Bring the Heat means you show up ready to give it your all. Build Strong Relationships means the engineer of record, the general contractor, the shop, and the field crew all know your word is good. Own the Process, Own the Outcome means the design has your name on it from the blank page to the final set.

If that reads like a place you would want to show up to, keep going.

• You want a task handed to you already decided.
• You go quiet when a room full of people questions your numbers.
• You wait for someone else to spot the conflict in your drawing.
• You do the work in bursts the night before a deadline.
• You send a set out without a second look at the math.
• You would rather trace an existing model than build one from nothing.

You want the blank page. Sizing, routing, equipment selection, and layout are yours to decide, and that is the part of the job you look forward to.

You take pride in a drawing someone else can build straight from. When the shop opens your set, the answer is in the sheet, not on your phone.

You defend a number to a room that knows enough to push back. You checked it before the meeting. You walk through your logic without getting defensive.

You solve the conflict yourself first. When you cannot, you escalates with a specific ask, not a shrug.

You ask the question on day one when a parameter looks off. Clearing it early beats redoing the work later.

You write down what got agreed to in the meeting and send it back so nobody remembers it differently a month from now.

You keep your work in order. Anyone on the team opens your folder and finds the current version.

You pick up a new system fast and use it without hand-holding.

You start with the airflow and velocities the project calls for. From there, you build the routing, size the ductwork, set the volumes and capacities, and pick the equipment to match the parameters the engineer of record hands you on day one. Nothing gets traced off an existing model.

The finished design holds up when a client questions it, because the numbers behind it are yours and they are defensible.

Someone else produces the load calculations. You take those completed numbers and turn them into a complete air system in the model. The duct sizing carries the loads. The routing serves the capacities the outputs call for.

A finished calc set always has a matching, buildable design behind it.

You coordinate with the electrical, plumbing, and architectural teams…