Careers at Hiring now
Castelion
Hiring across Engineering, People and Design
Open roles at Castelion
17 positions we're tracking, re-checked daily
- Apply ↗
Senior Embedded Software Engineer
Torrance, CAonsiteSeniorFirst seen yesterday - Apply ↗
Flight Software Engineer
Torrance, CAonsiteMid-levelFirst seen yesterday - Apply ↗
Senior Web Developer
Allen, TX; Torrance, CAonsiteSeniorFirst seen yesterday - Apply ↗
Cloud Compute Engineer
Allen, TX; Torrance, CAonsiteMid-levelFirst seen yesterday - Apply ↗
Industrial Engineer, Logistics and Material Flow
Torrance, CAonsiteMid-levelFirst seen yesterday - Apply ↗
Lead Manufacturing Engineer
Midland, TXonsiteSeniorFirst seen yesterday - Apply ↗
Human Resources Generalist
Torrance, CAonsiteMid-levelFirst seen yesterday - Apply ↗
IT Network Engineer
Allen, TXonsiteMid-levelFirst seen yesterday - Apply ↗
Senior GNC Engineer
Rio Rancho, NMonsiteSeniorFirst seen yesterday - Apply ↗
lead flight software engineer
rio rancho, new mexicoSeniorFirst seen 6 days ago - Apply ↗
Senior RF Systems Engineer
Allen, TXonsiteSeniorFirst seen last week - Apply ↗
HR Coordinator
torrance, caSeniorFirst seen 3 weeks ago - Apply ↗
Site Reliability Engineer
RemoteMid-levelFirst seen 3 weeks ago - Apply ↗
Senior Legal Counsel
RemoteSeniorFirst seen last month - Apply ↗
Recruiting Coordinator
Torrance, CAonsiteSeniorFirst seen last month - Apply ↗
Office Manager
Washington, DConsiteMid-levelFirst seen last month - Apply ↗
lead flight software engineer
torrance caSeniorFirst seen last month
Tracking Castelion
Last checked October 23, 2026Know when Castelion is hiring before anyone else
A role stays uncontested for about four days. Here's the window, and where we put you in it.
- LiveLiveWatching Castelion0 applicants
- Same daySame dayRead off their careers page~2 applicants
- Next morningNext morningIn your matches, with who's hiring~5 applicants
- Day 2Day 2You've emailed them~8 applicants
- Day 7+Day 7+Hits the job boards250+ applicants
Working at Castelion
We track Castelion and surface their roles as they open.
2 of the 17 open roles are remote.
How to actually get hired at Castelion
Why applying the normal way doesn't work
Castelion runs an applicant tracking system (Greenhouse), but hiring managers still work referrals first. A cold application to Castelion isn't dead, it's just fourth in line behind internal referrals, sourced candidates and recruiter pipelines.
Who to contact at Castelion
No verified contact route for Castelion yet. Expect the hiring manager for the team that's hiring to make the call, but treat this as a model, not confirmed data.
What Castelion screens for
relevant experience and ability to operate autonomously
Customize your CV for the Castelion role. Matching the job description language helps clear ATS filters.
Mistakes that kill Castelion applications
Don't send the same CV you sent everywhere else. Whoever reads applications at Castelion can tell, and it's the fastest rejection there is.
Don't open with what you want. Open with what Castelion is dealing with right now — is growing, and what you'd do about it.
The wait-and-hope strategy fails. Follow up on day five — response rates roughly double.
Tracking Castelion
Applying to Castelion? Get the contact, not the form.
Castelion careers: frequently asked questions
How many jobs does Castelion have open?
17 open roles at Castelion, last checked October 23, 2026.
Does Castelion hire remotely?
Yes — 2 of Castelion's 17 open positions offer remote work.
What roles is Castelion hiring for?
Castelion is hiring across Engineering, People and Design. The most recent opening is Senior Embedded Software Engineer.
How do I apply for a job at Castelion?
Use the apply links above, or check our guide to getting hired at Castelion.
Does Castelion respond to cold emails?
Response rate data for Castelion not yet confirmed.
Who is the hiring manager at Castelion?
We haven't confirmed who leads hiring at Castelion. It's usually the manager of the team that's hiring.
What ATS does Castelion use?
Castelion uses Greenhouse.
How competitive is it to get hired at Castelion?
Expect around 100-250 applicants per Castelion role in the first two weeks. Apply within 72 hours of it going live for the best odds.
Tracking Castelion
Last checked October 23, 2026Hear about Castelion roles the day they open
A role stays uncontested for about four days. Here's the window, and where we put you in it.
- LiveLiveWatching Castelion0 applicants
- Same daySame dayRead off their careers page~2 applicants
- Next morningNext morningIn your matches, with who's hiring~5 applicants
- Day 2Day 2You've emailed them~8 applicants
- Day 7+Day 7+Hits the job boards250+ applicants
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