Principal Mechanical Engineer, Cargo Systems

About Gravitics

AtGravitics,we'renot just exploringspace—we'rebuilding it.

We'recreating the infrastructure for a thriving space economy, enabling humanity to flourish beyond Earth. Our vision is bold, butwe'renot just dreamers;we'redoers. We design and manufacturethe large-scale structures and systems that will power human and robotic activity in Earth orbit and beyond. Ifyou'reready to lay the foundations for a new era in space, embrace a culture of relentless learning and innovation, and contribute to a future where humanity's reach extends farther,Graviticsis the place for you.

Let'sbuild thefuture,together.

About the Role

To build our space systems, we need an exceptional mechanical engineer to own the top-level mechanical design, CAD configuration, and physical integration of a clean-sheet cargo vehicle.

You willbe responsible for developing andmaintainingthe integrated vehicle CAD model, establishing the mechanical configuration, and ensuring that structures, cargo, avionics, thermal systems, mechanisms, propulsion, and other subsystems come together into a coherent and manufacturable vehicle.

This is a highly cross-functional role at the center ofthevehicledesign. You will work with subsystem responsible engineers toestablishinterfaces, drive packaging trades,identify and resolve integration conflicts, and mature the vehicle from early concepts through detailed design, build, integration, test, and flight operations.

Responsibilities:

• Own andmaintainthe top-level integrated CAD model and mechanical configuration of a clean-sheet cargo vehicle.
• Develop vehicle-level layouts and packaging concepts that satisfy mission, structural, cargo, subsystem, manufacturing, integration, test, and operational requirements.
• Establish andmaintainthe vehicle CAD architecture, including assembly structure, coordinate systems, interface geometry, envelopes, keep-out zones, and other configuration-critical features.
• Lead vehicle-level mechanical integration across primary and secondary structures, cargo, avionics, thermal systems, propulsion, mechanisms, harnessing, fluid systems, and other vehicle subsystems.
• Work with subsystem responsible engineers to define and manage mechanical interfaces and ensure their designs integrate into the overall vehicle configuration.
• Lead packaging and configuration trades involving vehicle geometry, cargo volume, mass properties, accessibility, serviceability, assembly sequence, subsystem routing, and structural load paths.
• Identifyintegration conflicts early and drive cross-functional teams to resolution.
• Own vehicle-level clearance and interference management and ensure the integrated configurationremainsinternally consistent as designs mature.
• Drive configuration maturity from conceptual layouts through preliminary and critical design, released hardware, vehicle assembly, and integration.
• Support vehicle mass properties development bymaintainingaccurateconfiguration,componentlocation, and orientation within the integrated model.
• Ensure the vehicle configuration accounts for manufacturing, assembly, integration, test, transportation, ground handling, and operational constraints.
• Develop andmaintaininterface definition products and other documentation necessary to communicate and control the vehicle's mechanical configuration.
• Support design reviews by clearly communicating vehicle configuration, major trades, integration risks, open interfaces, and design maturity to engineering teams and leadership.
• Create detailed mechanical designs and drawings where needed, applying sound engineering fundamentals, GD&T, and tolerance analysis.
• Work directly with manufacturing, integration, and test teams to resolve vehicle-level issues as hardware moves from CAD into reality.
• Serve as the technical authority for the integrated mechanical configuration of the vehicle, frominitialconcept through mission operations.

About You

You are a systems-minded mechanical engineer who understands that a vehicle is more than a collection of independently optimized subsystems. You naturally think about interfaces, packaging, assembly, accessibility, load paths, configuration, and how changes in one part of the vehicle propagate through the rest of the design.

You are equally comfortable working in a top-level CAD assembly, leading a cross-functional packaging trade, reviewing a detailed mechanical interface, or walking the floor with manufacturing and integration teams to resolve a hardware issue.

You…