Build Engineer (Sign On Eligible) Centennial, Colorado

xaboom; Northern (KY); Hybrid; USD 125,000 - 205,000; Full time

Job summary

Boom is building a next-generation engine in Denver and is seeking Build Engineers to own modules end-to-end from concept to test. You will directly engage with design, fabrication, and test teams to deliver hardware that meets aggressive performance, cost, and schedule targets.

You will be hands-on on the shop floor, iterating designs, reducing part count, and ensuring manufacturability in high-consequence environments, while collaborating across suppliers and internal engineers to push the

Qualifications

• Degree in Mechanical, Aerospace, or Manufacturing Engineering or equivalent hands-on experience.
• DFM/ DFA intuition to foresee manufacturability.
• Hands-on experience turning designs into hardware.
• Experience in high-consequence environments such as aerospace or automotive at scale.

Responsibilities

• Own a module of the Superpower engine — turbomachinery, mechanical systems, or structures/integration — from requirements through test.
• Drive design decisions that minimize part count, simplify assembly, and shorten the path from drawing to hardware.
• Live at the interface between design and fabrication: work directly with our in-house shop and external suppliers to get parts made right, fast, and on budget.
• Integrate your hardware onto test stands. Watch it run. Break it. Fix it. Ship the next rev.
• Raise the bar on everyone around you.

Skills

Hands-on hardware

Design-for-manufacture

High-consequence environment

Part simplification

Education

Mechanical Eng

Aerospace Eng

Manufacturing Eng

Tools

DFM

Job description

A jet engine is a few thousand parts surviving temperatures above the melting point of the metals they're made from, at rotational speeds that push the limits of material science, for thousands of hours. Most engines take a decade and a billion dollars to develop. We are building ours differently.

At Boom we are developing Symphony — the engine that will power Overture, the world's fastest airliner and Superpower, the natural gas turbine and revenue engine that fuels our endeavors while unblocking next-gen AI data centers. We are building it in Denver, at a pace and cost point the industry says is impossible, because the industry has forgotten what's possible.

We are hiring Build Engineers to own modules of the engine end-to-end: concept, design, drawings, supplier interface, first article, assembly, and test integration. You will not hand a drawing to "manufacturing." You are manufacturing — and design, and supply chain, and the test stand tech you brought a coffee to this morning. You will delete parts. You will simplify interfaces. You will put your hands on hardware. And when your module fires on the test stand, it will fire because you made it fire.

What you'll do

• Own a module of the Superpower engine — turbomachinery, mechanical systems, or structures/integration — from requirements through test.


• Drive design decisions that minimize part count, simplify assembly, and shorten the path from drawing to hardware.


• Live at the interface between design and fabrication: work directly with our in-house shop and external suppliers to get parts made right, fast, and on budget.


• Integrate your hardware onto test stands. Watch it run. Break it. Fix it. Ship the next rev.


• Raise the bar on everyone around you.

You probably have

• A degree in Mechanical, Aerospace, or Manufacturing Engineering — or equivalent hands‑on experience. The degree field is less important than manufacturing exposure; we hire build engineers with robotics, and biomedical backgrounds.


• Real DFM/DFA intuition — you can look at a part and see how it will be made.


• Hands‑on experience turning a design into actual hardware, preferably in a high‑consequence environment (aerospace, automotive at scale, defense, energy, race cars, robotics).


• A track record of making things simpler, cheaper, and faster to build.

You will thrive here if

• You believe the shop floor is the most interesting room in the building.


• You are equally comfortable talking to the machinist making your part as the CFD or FEA analyst who set the requirements — and you understand the "why" on both ends.


• You have strong opinions, held loosely, and you'd rather change your mind today than defend a bad idea for six months.

• P2 Level - Typically 0 - 4 years of experience - Base salary range: $125,000 - $158,000


• P3 Level - Typically 5 - 10 years of experience - Base salary range: $145,000 – $184,000


• P4 Level - Typically 10 - 15 years of experience - Base salary range: $162,000 – $205,000

Actual salaries will vary based on factors including but not limited to location, experience, and performance. The range listed is just one component of Boom’s total rewards package for employees. Other rewards may include long-term incentives/equity, a flexible PTO policy, and many other progressive benefits.

To conform to U.S. Government aerospace technology export regulations (ITAR and EAR), applicant must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about ITAR here.

Boom is an equal opportunity employer, including for individuals with disabilities and protected veterans. We are building a culture of merit and excellence.