Senior Software Engineer - Cryptography & Systems Development
Motum · Temecula, CA
$150,000–$175,000from the description
Jul 9, 2026
Temecula, CA
Jul 20, 2026
What this job asks for AI summary
A senior individual contributor role focused on building and optimizing cryptographic and security-sensitive software in C/C++ for production environments. Day-to-day work spans low-level systems programming, cloud-native development, code review for memory safety and concurrency, and integration with protocols such as TLS and IPsec. The role also carries architectural influence and some engineering mentorship responsibility, suiting an experienced systems programmer with a strong cryptography or security background.
Senior level · 7+ years · Riverside-San Bernardino-Ontario, CA · Full-time
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Roughly 40 people in the Riverside-San Bernardino-Ontario, CA area plausibly meet what this posting asks for (software developers). range 15–60
Applicant volume Moderate — A normal amount of company. The rare requirements below are what will separate a shortlisted application from the rest.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $136,201 (middle half $104,018–$167,208). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (7)
Temecula, CA falls within the Riverside-San Bernardino-Ontario, CA CBSA (40140), not the Los Angeles metro.
The role is hybrid (minimum 3 days/week on-site after an initial fully on-site training period), so remote=false.
C and C++ are listed together as a single 7+ year requirement ('C/C++'); both are emitted as separate skills with each as the other's alternative, per the distinct-technologies rule.
TLS and IPsec are listed as 'TLS and/or IPsec' — a single requirement with interchangeable options; emitted as two skills each listing the other as an alternative to reflect the 'and/or' framing.
Degree requirement is None: the JD explicitly accepts 'equivalent professional experience' in lieu of the stated Bachelor's degree.
Docker, Kubernetes, QEMU/Linux KVM, AI-assisted development tools, and regulated-environment experience all appear under 'Preferred Qualifications' and are marked accordingly.
Preferred certifications (CKAD, Docker Certified Associate, AWS Certified Developer, LFCE/RHCE) are credentials, not named technologies with a distinct skill signal, and are omitted from the skills list.
Read the full posting
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