---
title: 'Mechanical Design Intern, Mechanical Systems at Heart Aerospace'
canonical: 'https://feeny.ai/job/mechanical-design-intern-mechanical-systems-heart-aerospace-los-angeles-9xjagw1wr49t'
type: 'job'
last_seen: '2026-10-30'
---

# Mechanical Design Intern, Mechanical Systems at Heart Aerospace

- **Company:** Heart Aerospace
- **Location:** Los Angeles, CA
- **Posted:** 2026-10-29
- **Last confirmed live:** 2026-10-30
- **Apply:** https://job-boards.greenhouse.io/heartaerospace/jobs/4472809009

## Job description

At Heart Aerospace we develop the ES-36, a regional hybrid-electric airplane with a capacity of 36 passengers, an electric zero-emission range of 125mi and an extended hybrid range of 745mi. Heart is targeting type certification of the ES-36 by 2031.

Your Mission:

As part of the Mechanical Systems team, you will be responsible for supporting design, development, testing of components including primary and secondary flight control actuators, landing gear components and environmental control components.

What You’ll Do:

- Assist in the conceptual design, prototyping, and testing of aircraft mechanical systems
- Support CAD modeling using CATIA (3DEXPERIENCE)
- Assist with test planning, data collection, and validation of flight control actuators
- Collaborate with engineers on manufacturing support and design troubleshooting
- Participate in team meetings, design reviews, and technical discussions

What You’ll Learn:

- Hands-on experience with mechanical systems design, prototyping, and testing in an aerospace engineering environment.
- Mentorship from experienced engineers in a collaborative environment
- How engineering teams collaborate in fast-paced aerospace environments

You'll Bring These Qualifications:

- Pursuing a Bachelor’s or Master’s in Aerospace, Mechanical, or related engineering
- Strong understanding of engineering principles and mechanical systems
- Familiarity with CAD tools (SolidWorks, CATIA, NX)
- Proven interest in mechanical design engineering through extracurricular activities, academic projects, passion projects, or equivalent experiences (proven aviation or sustainability interest is a plus)
- Proven interest in mechanical design engineering through extracurricular activities, academic projects, passion projects, or equivalent experiences (proven automotive or sustainability interest is a plus)

These Qualifications Would Be Nice to Have:

- Experience in designing, developing and testing mechanical hardware
- Experience with motors, gearboxes, hydraulic systems, and/or actuation systems
- Exposure to manufacturing processes
- Understanding of FAA/EASA aircraft certification basics

Additional Requirements:

- Able to work Full-time on-site for a minimum of 10 consecutive weeks beginning in January 2027

Base Pay Range:

$30/HR—$35/HR USD

## About Heart Aerospace

## Company Overview
- **One-liner**: Heart Aerospace is developing hybrid‑electric regional aircraft to lower the cost of commercial aviation.
- **Entity Type**: Private (Series B, $190 M total funding [heartaerospace.com/company](https://www.heartaerospace.com/company))
- **Headquarters**: Torrance, California, USA (with additional offices in Gothenburg, Sweden; Plattsburgh, NY; and Oxnard, CA [heartaerospace.com/company](https://www.heartaerospace.com/company))
- **Founded**: 2019 (Y Combinator W19 batch [heartaerospace.com/about](https://heartaerospace.com/about))
- **Founders**: Anders Forslund (CEO) and Klara Forslund (Chief Business Officer) [heartaerospace.com/company](https://www.heartaerospace.com/company)

## Core Business
- **Primary industry**: Aerospace / Electric Aviation
- **Target customers**: Airlines, regional carriers, and passengers (B2B focus)
- **Mission**: To lower the cost of commercial aviation through electrification, software, and modern manufacturing [heartaerospace.com/our-mission](https://www.heartaerospace.com/our-mission)

## Products & Services
- **[ES‑30](https://www.heartaerospace.com/)**: A 30‑seat hybrid‑electric regional aircraft designed for short‑haul routes with zero CO₂ emissions in electric mode.
- **[Heart X1](https://www.heartaerospace.com/company)**: A full‑scale technology demonstrator (largest electric aircraft ever flown) used to validate propulsion architecture and flight characteristics.
- **Electric propulsion systems**: In‑house development of electric motors, batteries, and power electronics for aviation.
- **Software‑defined aircraft**: Systems that improve reliability, streamline updates, and enable automation for lower lifecycle costs [heartaerospace.com/our-mission](https://www.heartaerospace.com/our-mission).

## Market Standing
- **Valuation / Market Cap**: Not publicly disclosed
- **Key Metric**: Total funding of $190 M (as of early 2025) [heartaerospace.com/company](https://www.heartaerospace.com/company)
- **Notable Investors & Partners**: Breakthrough Energy Ventures (lead, Series A), United Airlines, Mesa Air Group, Y Combinator [heartaerospace.com/company](https://www.heartaerospace.com/company)
- **Growth Signals**:
  - Moved corporate HQ to Torrance, CA in April 2025 to anchor in the LA aerospace ecosystem.
  - Opened an R&D centre and pilot plant in Los Angeles.
  - Established a flight test base in Plattsburgh, NY.
  - Rolled out the Heart X1 demonstrator in September 2024 and completed ground service tests.
  - First flight of the X1 (the largest electric aircraft ever flown) achieved in 2025–2026 [heartaerospace.com/company](https://www.heartaerospace.com/company).
  - Team size of 100+ employees with deep aerospace certification experience.

## Competitive Advantages
- **Hybrid‑electric propulsion**: Reduces operating costs by replacing jet fuel with cheaper electricity and simplifying maintenance.
- **Modern manufacturing approach**: Designed for scale and lower unit cost compared to traditional aerospace production.
- **Software‑defined aircraft**: Enables continuous improvement, better reliability, and lower lifecycle expenses.
- **Deep certification expertise**: Team has hands‑on experience building and certifying aircraft for global markets.
- **Iterative development**: Rapid testing with subscale and full‑scale demonstrators de‑risks the path to commercial service.

## Strategic Focus
- Certify the ES‑30 and enter commercial service by the end of this decade [heartaerospace.com/about](https://heartaerospace.com/about).
- Continue iterative validation using the X1 demonstrator and “iron bird” test facility.
- Build the ecosystem of charging infrastructure, services, and partnerships to unlock the regional aviation market [heartaerospace.com/company](https://www.heartaerospace.com/company).
- Expand engineering and manufacturing capabilities in the US and Sweden.

## Why Work Here
- **Impact**: Work on one of the most promising clean‑tech opportunities in aviation – reducing cost and emissions for short‑haul flights.
- **Engineering culture**: Emphasis on rapid prototyping, real‑world testing, and cross‑disciplinary collaboration (propulsion, flight software, structures, manufacturing).
- **Locations**: Major hubs in Los Angeles (Torrance) and Gothenburg, Sweden, with a growing US presence (Plattsburgh, NY; Oxnard, CA).
- **Hybrid/remote**: Many engineering roles are based on‑site at the LA or Gothenburg facilities, reflecting the hands‑on nature of hardware development.
- **Notable perks**: Opportunity to join a well‑funded YC‑backed hardtech startup with a strong mission; offices located in leading aerospace ecosystems; potential for rapid career growth as the company scales.

## Sources
1. [Heart Aerospace Careers](https://www.heartaerospace.com/careers)
2. [Heart Aerospace Homepage](https://www.heartaerospace.com/)
3. [Heart Aerospace – About](https://heartaerospace.com/about)
4. [Heart Aerospace – Company](https://www.heartaerospace.com/company)
5. [Heart Aerospace – Our Mission](https://www.heartaerospace.com/our-mission)

## Other roles at Heart Aerospace

- [IT Manager](https://feeny.ai/job/it-manager-heart-aerospace-los-angeles-3qgm2ahbwnap) — Los Angeles, CA
- [Executive Operations Partner](https://feeny.ai/job/executive-operations-partner-heart-aerospace-torrance-51y8a58rctak) — Torrance, CA
- [Staff/Principal Mechanical Design Engineer, Flight Mechanisms](https://feeny.ai/job/staff-principal-mechanical-design-engineer-flight-mechanisms-heart-aerospace-20znawbeh3d1) — Los Angeles, CA
- [Electrical Engineer](https://feeny.ai/job/electrical-engineer-heart-aerospace-los-angeles-8yv070hrkhnt) — Los Angeles, CA
- [Open Application](https://feeny.ai/job/open-application-heart-aerospace-los-angeles-4t330y2yng6s) — Los Angeles, CA
- [Electric Motor Design Engineer](https://feeny.ai/job/electric-motor-design-engineer-heart-aerospace-los-angeles-wzdxfa4wyh9p) — Los Angeles, CA