Space is a hardware industry. Every engineer in the space says this at some point. And it's mostly true. Hardware makes up 32% of active postings in the space catalog, more than any other single category.
But the fact that hardware dominates industry-wide hides a much more interesting story: individual companies have wildly different mixes. Some space companies are 60% hardware. Others are 60% software. If you're a software engineer who wants to work in space, which companies you apply to matters a lot more than the industry-wide statistic suggests.
The role mix picture
Category breakdown across the full space catalog, last 30 days of postings:
| Category | Postings | % of total |
|---|---|---|
| Hardware | 590 | 32% |
| Simulation | 374 | 20% |
| Testing | 347 | 19% |
| Autonomy | 175 | 10% |
| Software | 118 | 6% |
| Controls | 112 | 6% |
| AI/ML | 52 | 3% |
| Computer vision | 23 | 1% |
| Robotics (in-space) | 18 | 1% |
| Research | 17 | 1% |
Hardware and Testing together are more than half the industry. Real programmers are asking: where are the software roles concentrated?
Software-forward space companies
Companies where the majority of hiring is software, autonomy, or simulation rather than hardware:
Planet Labs — Software-forward Earth observation. Their satellites are important but their business is the imagery data pipeline, the API, the analytics on top. If you're a distributed-systems, data infrastructure, or ML engineer wanting space work, Planet is the most accessible entry point.
Loft Orbital — Hosted-payload satellite operator. Their software stack (mission operations, payload scheduling, ground systems) is where most of the interesting engineering lives. Very software-heavy for a satellite company.
Muon Space — Multi-purpose small-sat platform. Software-forward for a hardware company. Mission control, constellation management, data pipeline all matter to their business.
Spire Global — Weather and maritime data from space. Their business is data science on top of a satellite constellation. Heavy on software, data, and ML.
Astranis — Small GEO satellites. Software-heavier than most launch companies because their small satellites need very sophisticated onboard software.
Kepler Communications — Space-based data relay. Networking and comms software matter more than raw hardware here.
Applied Intuition-adjacent tools companies — Simulation and dev-tooling companies serving the space industry. Small but very software-forward.
Quindar — Mission control software specifically. Explicit software-first positioning.
Slingshot Aerospace — Space situational awareness software. Data pipeline + ML + visualization.
If you're a software engineer looking to break into space, these are the companies where your background will be most immediately useful.
Hardware-forward space companies
Companies where hardware, testing, propulsion, and manufacturing dominate hiring:
SpaceX — 32% of their postings are hardware-tagged, but the real story is that most of their non-hardware roles (testing, controls, autonomy) are still fundamentally hardware-adjacent. Almost every SpaceX role requires deep hardware understanding.
Rocket Lab — Similar profile. Launch vehicle plus small-sat platform. Hardware-heavy across the board.
Blue Origin — Very hardware-focused. Rocket engines, launch vehicles, lunar lander.
Stoke Space — Reusable second-stage. All hardware, all the time.
Relativity Space — Terran R vehicle development. Massive hardware focus.
Ursa Major — Rocket engines. Pure propulsion hardware.
Vast — Space station (Haven-1). Hardware-forward with growing software as they scale.
Sierra Space — Dream Chaser + LIFE inflatable habitats. Hardware-heavy.
Anduril's space division — Rocket motors, hypersonics, on-orbit systems. Very hardware-focused.
True Anomaly — Space defense hardware and integrated hardware+software autonomy.
Muon Space — Actually shows up in both lists because they do hardware AND software. Their platform is real hardware, but their differentiation is software.
The nuanced middle
A few companies have interesting hybrid profiles:
K2 Space — Large-bus satellite platform. Hardware first but the bus is designed to be flexibly reconfigured through software.
Varda Space — Pharma manufacturing in microgravity. The manufacturing process is the differentiation, so both hardware and process automation software matter.
Impulse Space — Orbital transfer vehicles. Hardware-first (the vehicle) but flight software matters heavily.
Turion Space — On-orbit servicing. Hybrid.
The autonomy category is important for software engineers
175 postings tagged "Autonomy" in the last 30 days. This is often where software engineers with adjacent skills (robotics, planning, controls) find real space roles. The autonomy category in space specifically includes:
- Rendezvous and proximity operations (RPO) for on-orbit servicing
- Autonomous docking systems
- Ground-based autonomous mission planning
- On-orbit maneuvering and station-keeping
- Autonomous defense systems (target tracking, RPO for space defense)
Companies with the most autonomy postings: Anduril, True Anomaly, Vast, and some SpaceX Starship autonomy work. If you have autonomy/robotics/AV background and want to move into space, this is the category to target.
The simulation category is bigger than people realize
374 postings tagged "Simulation." That's 20% of the space industry hiring right now. Digital twin work, flight software HIL setups, orbital mechanics simulation, thermal modeling, structures analysis.
If you have MATLAB, Python, or physics-based simulation experience, the demand in space is very high and most job seekers don't realize it.
The AI/ML category is smaller than robotics
52 postings tagged "AI/ML" in space, compared to 200 in robotics. AI/ML in space is real but concentrated at a few companies:
- Anduril for space-defense autonomy
- True Anomaly for RPO
- Planet Labs for imagery ML
- Slingshot for SSA
- Muon for their platform
If you want AI/ML in space specifically, apply to those companies.
What to do with this
Two calls if you're a software or ML engineer trying to break into space.
Target the software-forward companies for your first move. Planet Labs, Loft Orbital, Muon Space, Kepler, Spire, Quindar, Slingshot. Your background will match their needs immediately and you won't have to overcome the "you don't have hardware experience" objection.
Once you're in the industry, moving to a hardware-heavy company is much easier than breaking in from outside. Two years at Planet Labs makes SpaceX's software team a realistic target. Two years in general software doesn't.
Methodology
Category tags come from the category field on each active job posting in the catalog. Assignment happens at sync time based on ATS metadata and posting text. Rough classifications like "software-first" versus "hardware-first" are my judgment based on the observed role mix, not from the companies themselves.
Browse the full catalog sorted by role mix if you want to drill into any specific company's actual posting distribution.