Heirloom · 1 day ago
Senior Mechanical Engineer, High Volume Design
Brisbane, CA
Full-time
Onsite
Senior Level
5+ years expHeirloom is a company focused on harnessing natural carbon capture to combat climate change. The Senior Mechanical Design Engineer will lead the design and execution of complex mechanical subsystems, ensuring they are cost-effective and reliable while influencing the scalability of core technology.
Carbon CaptureMineralMining TechnologySustainability
Responsibilities
Own end-to-end design of complex mechanical subsystems, from requirements definition and architecture through validation, production ramp, and deployment
Drive subsystem performance across cost, reliability, manufacturability, and serviceability, with direct impact on $/ton CO₂ economics
Design low and high-volume components using a variety of manufacturing processes, including sheet metal stamping, casting, roll forming, and extrusions
Lead design trade studies using first-principles analysis, data-driven methods, and sound engineering judgment
Design and develop product-level test equipment, fixtures, and validation strategies to support Design for Reliability (DfR), including accelerated life testing, stress testing, and failure-mode–driven validation to ensure robust subsystem and system performance over the intended service life
Partner closely with suppliers, equipment operators, manufacturing, and supply chain teams to ensure designs are robust, scalable, and production-ready
Generate and review detailed 2D drawings with proper GD&T, aligned with production and inspection standards
Support rapid prototyping and iterative development cycles while maintaining a clear path to NPI rigor
Act as a technical leader within the team by mentoring peers, driving best practices, and raising the bar for engineering quality
Qualification
Required
5+ years of experience designing and delivering products through the full lifecycle, from concept to production
Strong passion for product design and solving complex engineering problems with simple, robust solutions
Excellent engineering fundamentals, with the ability to apply first principles, modeling, and data to real-world design decisions
Experience applying Design for Reliability (DfR) principles, including failure mode identification, reliability modeling, accelerated life and stress testing, and translating test results into durable design improvements
Experience with engineering analyses such as reliability modeling, tolerance analysis, FEA, fatigue analysis, and root cause analysis
Demonstrated ability to lead technically complex projects or subsystems with minimal supervision
Proven track record of working cross-functionally to balance competing requirements and constraints
Experience producing clear, accurate drawings and specifications suitable for manufacturing and inspection
Strong sense of ownership, accountability, and follow-through—delivering high-quality work on schedule
Preferred
Hands-on experience designing sheet metal (stamping, press brake), weldments, and plastic parts (e.g., injection molding, thermoforming)
Background in random vibration and fatigue testing, metallurgy, material and test standards
Experience managing development in a product lifecycle management system (PLM)
Comfort operating in both fast-paced R&D environments and the structured rigor of NPI execution
Experience using NX in a production or industrial context
Benefits
Robust health coverage. Excellent health, dental and vision insurance covered up to 100% by Heirloom. FSA option.
Generous parental leave. 16 weeks paid leave for all Heirloom employees, regardless of primary/secondary caregiver status.
Generous stock options.
Flexible time off. Unlimited PTO for exempt (salaried) employees & 120 hours for full time non-exempt (hourly) employees.
401(k).
Stay healthy. Monthly health and wellness reimbursement.
Learn on the job. Robust annual education and conference budget, including airfare and hotel costs.
Company
Heirloom
Heirloom is a provider of direct air capture technology to enhance the natural process of CO2 absorption from the atmosphere.
51-200 employees
H1B Sponsorship
Heirloom has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (9)
2024 (10)
2022 (2)
Funding
Current Stage
Growth StageTotal Funding
$204.26MKey Investors
United Airlines VenturesNational Science Foundation
2025-12-02Undisclosed
2025-02-25Series Unknown
2024-12-04Series B· $150M
Leadership Team
Noah McQueen
Co-Founder, Head of Research
Christine Mak
Executive Assistant to CEO
Recent News
The Business Journal
2026-01-03
The Business Journal
2025-12-13
Company data provided by crunchbase