Mechanical Engineer II

Firefly Aerospace, Inc.

Cedar Park (TX)

On-site

USD 110,000 - 150,000

Full time

26 hours ago

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Benefits offered by this job

Health, dental and vision plans

Parental leave

Relocation benefits

Educational reimbursement

Short term disability

Flexible PTO

Job summary

Firefly Aerospace, Inc. in Texas is seeking an experienced Avionics Mechanical Engineer to design electronics packaging and electro‑mechanical assemblies for launch vehicles and spacecraft.

You will develop rugged enclosures, conduct thermal and vibration analyses, and create CAD drawings and documentation to support integration with avionics teams. The role requires hands‑on experience with NX/ANSYS, GD&T, and multi‑layer PCB enclosure design, along with knowledge of CNC and sheet metal

Qualifications

3+ years of engineering experience designing electronics packaging and electro‑mechanical assemblies via internships, professional industry experience, or academia
3+ years of 3D CAD design and drafting experience
Hands on experience with design and integration of electronics packaging
Proficiency with NX or similar CAD software and analysis tools such as ANSYS
Experience with multi‑layer PCBA enclosure design
Experience with various design features and calculations for mechanical packaging of electronics including vent analyses, EMI/EMC mitigation strategies, multi‑component tolerance stack‑up calculations, bolt load calculations, Steinberg PCB solder joint fatigue, etc.
Understanding of basic subsystems of a launch vehicle and how avionics integrate within the vehicle and interface with instrumentation
Experience designing for CNC machining and sheet metal production, as well as selecting appropriate materials and finishing processes
Experience with environmental analysis and test including thermal cycle, thermal vacuum, shock, and vibration
Understanding and knowledge of GD&T

Responsibilities

Design ruggedized electronics packaging and structural components for PCB assemblies used for launch vehicle and spacecraft applications
Design electro‑mechanical assemblies for thermal and dynamic environments, EMI/EMC compatibility, and radiation resistance
Perform thermal analyses (steady state thermal and thermal cycling) of electronics in aerospace environments
Perform modal and vibration analyses of electronic assemblies with mechanical/structural components
In addition to electronics packaging, candidate will be responsible for design of test fixturing and ground support hardware for launch vehicle and spacecraft electronics
Support vibration, shock, and thermal test campaigns of products designed
Candidate will be responsible for development of CAD designs, part drawings, assembly drawings, and technical documentation including presentations and reports
Work with the PCB design team to specify mounting strategies, mechanical keep outs, hole size and spacing, PCB copper weights, connector type and placement, and thermal interfaces to the PCB assembly

Education

Bachelor of Science in mechanical engineering, aerospace engineering, or related field

Tools

NX CAD

ANSYS

3D CAD

GD&T

Job description

At Firefly, we’re focused on making space attainable for everyone – including you! Each team member’s passion, dedication, and innovative ideas have a direct impact on fueling our successful trajectory into space. And there’s no shortage of meaningful projects to work on at Firefly. With launch, lunar, and orbital vehicles, Firefly has a diverse line of business with opportunities to get hands‑on experience launching rockets, operating in space, and landing on the Moon.

Our missions are powered by our incredible team ...

836 11

What does SciTec bring to the Firefly family?
...

232 0

Peep our Elytra orbiter being assembled in the ...

709 3

Start your week with another Manufacturing Minute! ...

436 13

This World Space Week, remember to look up and ...

The engine powering Alpha`s first stage is truly ...

848 4

Our Values

Headquartered in the Lone Star State, Firefly’s hardworking team reflects Texas’ GO BIG culture in everything we do. We build big, achieve big, and dream big. We’re building launch vehicles and spacecraft to provide rapid, reliable space access. We’ve achieved some incredible wins, including the first successful commercial Moon landing. And we’re dreaming bigger than this planet with ambitions to Mars, Venus, and beyond. Our core values are what drive us along the way.

Passion

Fireflies believe in perseverance, responsiveness, and mentoring others with a focus on inspiring a better future.

Accountability

Fireflies act with integrity and take ownership of our actions, commitments, decisions, and outcomes.

Fireflies work in alignment across teams and communicate clearly with mutual respect for one another.

Fireflies deliver high-quality work through technical rigor and timely disciplined execution for our customers.

We take care of our Fireflies with some of the best benefits in the industry. Our mission to make space for everyone starts with our employees and allowing them to make space for their family, their career, and their future.

Space for You

Unlimited PTO for exempt employees
3‑month sabbatical for every 5 years of service
Medical, dental, vision, life, and disability insurance
Mental health services
Paid military leave

Space for Your Family

12 weeks paid maternity leave
4 weeks paid spouse leave
$20k towards family planning: fertility, surrogacy, adoption
Dog friendly workplace

Space for Your Career

$10k/year towards trade school or college
Ongoing coaching to advance leadership skills
Employee‑ownership with stock bonuses
4% Safe Harbor 401(k) matching
$10k bonus for home purchase in Cedar Park, Texas

Job Openings

From launch technicians to propulsion engineers, Firefly has open roles across the company. We’re looking for passionate, bright innovators to join our team and help make space an achievable dream for everyone.

Firefly Aerospace is a space and defense technology company that enables our world to launch, land, and operate in space – anywhere, anytime. As the partner of choice for critical space missions, Firefly is the only commercial company to launch a satellite to orbit with 24‑hour notice and the only company to achieve a successful Moon landing. Our launch vehicles, lunar landers, and orbital vehicles provide government and commercial customers with full mission services from low Earth orbit to the Moon and beyond. Headquartered in north Austin, Texas, Firefly is looking for passionate, hardworking innovators to join our team and help fuel our successful trajectory into space.

SUMMARY

Firefly Avionics Mechanical Engineers will leverage their creative design and experience to develop electronics enclosures, mechanical components, integration hardware, tooling, and test fixtures for launch vehicles. Qualified candidates will be responsible for design, analysis, hands‑on build/integration, and support of environmental testing. You will be part of the avionics team and will work closely and collaborate with all other teams across the company.

RESPONSIBILITIES

Design ruggedized electronics packaging and structural components for PCB assemblies used for launch vehicle and spacecraft applications
Design electro‑mechanical assemblies for thermal and dynamic environments, EMI/EMC compatibility, and radiation resistance
Perform thermal analyses (steady state thermal and thermal cycling) of electronics in aerospace environments
Perform modal and vibration analyses of electronic assemblies with mechanical/structural components
In addition to electronics packaging, candidate will be responsible for design of test fixturing and ground support hardware for launch vehicle and spacecraft electronics
Support vibration, shock, and thermal test campaigns of products designed
Candidate will be responsible for development of CAD designs, part drawings, assembly drawings, and technical documentation including presentations and reports
Work with the PCB design team to specify mounting strategies, mechanical keep outs, hole size and spacing, PCB copper weights, connector type and placement, and thermal interfaces to the PCB assembly

QUALIFICATIONS

Required

Bachelor of Science in mechanical engineering, aerospace engineering, or related field
3+ years of engineering experience designing electronics packaging and electro‑mechanical assemblies via internships, professional industry experience, or academia
3+ years of 3D CAD design and drafting experience
Hands on experience with design and integration of electronics packaging
Proficiency with NX or similar CAD software and analysis tools such as ANSYS
Experience with multi‑layer PCBA enclosure design
Experience with various design features and calculations for mechanical packaging of electronics including vent analyses, EMI/EMC mitigation strategies, multi‑component tolerance stack‑up calculations, bolt load calculations, Steinberg PCB solder joint fatigue, etc.
Understanding of basic subsystems of a launch vehicle and how avionics integrate within the vehicle and interface with instrumentation
Experience designing for CNC machining and sheet metal production, as well as selecting appropriate materials and finishing processes
Experience with environmental analysis and test including thermal cycle, thermal vacuum, shock, and vibration
Understanding and knowledge of GD&T

Firefly offers outstanding benefits for our employees, including generous health, dental and vision plans with low plan deductibles, parental leave, relocation benefits, educational reimbursement, short term disability, and flexible PTO options.

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you 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.

Firefly Aerospace, Inc. is an Equal Opportunity Employer; employment with Firefly is governed based on merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

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