Senior Mechanical Engineer, Relativity Space

Stage Propulsion

$142-181.5k

+ Equity

Senior and Expert level
Los Angeles

Office located in Long Beach, CA

Relativity Space

Aerospace manufacturer of 3D printed rockets

Job no longer available

Relativity Space

Aerospace manufacturer of 3D printed rockets

1001+ employees

B2BArtificial IntelligenceManufacturingDeep TechAerospace

Job no longer available

$142-181.5k

+ Equity

Senior and Expert level
Los Angeles

Office located in Long Beach, CA

1001+ employees

B2BArtificial IntelligenceManufacturingDeep TechAerospace

Company mission

To upgrade humanity’s industrial base on Earth and on Mars.

Company mission

To upgrade humanity’s industrial base on Earth and on Mars.

Top investors

9% employee growth in 12 months

Our take

Relativity Space has set out to build humanity’s multiplanetary future with its innovative 3D printed rockets. The company is at the forefront of software-defined manufacturing, combining 3D printing, AI, and autonomous robotics to create the “factory of the future.” By utilising 3D printing, Relativity has simplified its supply chain, building rockets in less than 60 days that require 100x fewer parts.

The company completed its flagship Terran 1 rocket and initial round of test flights in 2023. While the first launches technically failed, as the rocket failed to reach orbit, the attempt is still classified as a resounding success, as the rocket managed the highest stress state - Max-Q. The company is currently building its follow-up Terran R rocket, which is set for a debut launch in late 2026. While the company faces competition from SpaceX, Relativity Space’s cheaper and accelerated building process is well set to be a fierce competitor.

Freddie headshot

Freddie

Company Specialist at Welcome to the Jungle

Benefits

  • $2,000 annual learning stipend
  • Monthly lunches, game nights, holiday celebrations, and offsite events
  • 401(k)
  • Equity
  • Health, dental, and vision coverage
  • Additional stipend for employee wellness
  • 11 company holidays & generous PTO
  • Generous parental leave and provide a $10,000 stipend for fertility, adoption, and other family-building benefits
  • Constant training opportunities, company Lunch and Learns, and access to industry conferences

Funding (last 2 of 8 rounds)

Dec 2025

$800m

GROWTH EQUITY VC

Nov 2023

$20m

SERIES F

Total funding: $2.2bn

This company has top investors

Leadership

Tim Ellis

(Co-Founder & Board Member)

They are part of the National Space Council Users Advisory Group for The White House. Held a variety of positions at BLUE ORIGIN before Relativity Space was accepted into the YC W16 batch.

Jordan Noone

(Co-Founder & Executive Chairman)

Former CTO of the company. Co-founder and current Executive Chairman at KittyCAD, and Co-Founder & General Partner at Embedded Ventures.