Thermal Engineer (Avionics & PCBs)

About Mach IndustriesFounded in 2022, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition.Our vision is to redefine the future of warfare through cutting-edge manufacturing, innovation at speed, and unwavering focus on national security. We are dedicated to solving the next generation of warfare with lethal systems that deter kinetic conflict and protect global security.ResponsibilitiesOwn thermal design and analysis of avionics components, including PCBAs, COTS electronic devices, and custom enclosures.Predict and manage junction temperatures, heat spreading, coldspots, and hotspots under mission-relevant conditions.Provide guidance on component placement, stackups, copper, and via strategies for optimizing thermal performance.Design conduction paths and interfaces (PCB chassis, TIMs, contact resistances).Plan and execute board-level thermal testing and model correlation (thermocouples, IR, model validation).Basic QualificationsExperience in electronics/PCB thermal analysis (avionics, power electronics, or similar).Strong grasp of conduction and radiation-dominated heat transfer and transient thermal behavior.Proficiency with thermal tools (Icepak, Fluent, Thermal Desktop, or equivalent).Experience with thermal testing and validation of electronics hardware.Ability to work cross-functionally with software, electrical, and mechanical teams.Preferred QualificationsExperience optimizing PCB layout for thermal performance (placement, planes, vias).Background in avionics or embedded electronics thermal design.Experience with high power-density or transient thermal loads.Experience with heat sink design.Experience with high altitude or space systems.Familiarity with chassis/enclosure integration and low-convection environments.Experience building custom analysis tools (Python/MATLAB) or rapid trade studies.DisclosuresThis position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.Mach participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.The salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offers may vary based on (but not limited to) work experience, education and training, critical skills, and business considerations. Highly competitive equity grants are included in most offers and are considered part of Mach’s total compensation package. Mach offers benefits such as health insurance, retirement plans, and opportunities for professional development.Mach is an equal opportunity employer committed to creating a diverse and inclusive workplace. All qualified applicants will be treated with respect and receive equal consideration for employment without regard to race, color, creed, religion, sex, gender identity, sexual orientation, national origin, disability, uniform service, Veteran status, age, or any other protected characteristic per federal, state, or local law, including those with a criminal history, in a manner consistent with the requirements of applicable state and local laws. If you’d like to defend the American way of life, please reach out!Compensation Range: $120K - $210KLocationHuntington Beach, CAEmployment TypeFull timeLocation TypeOn-siteDepartmentMach VehiclesResearch, Development, Test & Evaluation (RDT&E)Vehicle PerformanceCompensationThermal Engineer (Avionics & PCBs)$120K – $155K • Offers EquitySenior Thermal Engineer (Avionics & PCBs)$160K – $210K • Offers EquityAt Mach, we believe that compensation is more than just a paycheck. It's a comprehensive package designed to reward the time, skills, and expertise you bring to our team. We are committed to offering competitive compensation that is equitable, transparent, and aligned with market trends.Key Elements of Our Compensation Philosophy:Competitive Salaries: We continuously research market rates to ensure our salaries are competitive with those in our industry and geographic location.Performance-Based Incentives: Our bonus structure is tied to both individual and company performance, creating a win-win scenario that motivates our team members to excel.Equity Participation: We offer stock options or equity to employees, ensuring that you share in the success and growth of the company.Benefit Packages: Our benefits include healthcare, dental and vision plans, retirement savings, and paid time off, because we understand that your well-being extends beyond the office.Professional Development: We allocate funds for continuing education, training, and career growth.Transparency: We are committed to openness about our compensation tiers and how decisions are made, ensuring trust and mutual respect.By joining Mach, you’re not just accepting a job—you’re becoming a key part of a team that values your contributions and invests in your growth. Together, we aim to create a rewarding environment that sets the stage for long-term success.