About Proton Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right . Since ...
Quick apply
About Proton Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right . Since ...
Quick apply
About Proton Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right . Since ...
San Diego, CA · On-site
$63 - $84.49/hr
Intensity Modulated Proton Therapy (IMPT), stereotactic radiosurgery (SRS); Stereotactic body radiotherapy (SBRT); fractionated stereotactic radiotherapy (FSRT); High Dose radiotherapy; Pediatric ...
San Diego, CA · On-site
$63 - $84.49/hr
Intensity Modulated Proton Therapy (IMPT), stereotactic radiosurgery (SRS); Stereotactic body radiotherapy (SBRT); fractionated stereotactic radiotherapy (FSRT); High Dose radiotherapy; Pediatric ...
Sunnyvale, CA · On-site
$56 - $76/hr
Engineering Intern - Proton Exchange Membrane Water Electrolysis * Intern At Bosch, we shape the future by inventing high-quality technologies and services that spark enthusiasm and enrich people ...
New
Sunnyvale, CA · On-site
$56 - $76/hr
Engineering Intern - Proton Exchange Membrane Water Electrolysis * Intern At Bosch, we shape the future by inventing high-quality technologies and services that spark enthusiasm and enrich people ...
New
Loma Linda, CA · On-site
Staff in the department use x-rays and proton beams to treat patients presenting with all kinds of cancers. We perform 3D-CRT, IMRT, VMAT, SRS, SBRT, TBI, and ocular treatments. The department also ...
Loma Linda, CA · On-site
Staff in the department use x-rays and proton beams to treat patients presenting with all kinds of cancers. We perform 3D-CRT, IMRT, VMAT, SRS, SBRT, TBI, and ocular treatments. The department also ...
Loma Linda, CA · On-site
Staff in the department use x-rays and proton beams to treat patients presenting with all kinds of cancers. We perform 3D-CRT, IMRT, VMAT, SRS, SBRT, TBI, and ocular treatments. The department also ...
Loma Linda, CA · On-site
Staff in the department use x-rays and proton beams to treat patients presenting with all kinds of cancers. We perform 3D-CRT, IMRT, VMAT, SRS, SBRT, TBI, and ocular treatments. The department also ...
Loma Linda, CA · On-site
$232K - $312K/yr
Staff in the department use x-rays and proton beams to treat patients presenting with all kinds of cancers. We perform 3D-CRT, IMRT, VMAT, SRS, SBRT, TBI, and ocular treatments. The department also ...
Loma Linda, CA · On-site
$232K - $312K/yr
Staff in the department use x-rays and proton beams to treat patients presenting with all kinds of cancers. We perform 3D-CRT, IMRT, VMAT, SRS, SBRT, TBI, and ocular treatments. The department also ...
$18.25 - $23.25/hr
The PAR III will be helping with the workload for infusion, hematology, and proton therapy authorizations. Candidate will work in the Central Authorization Department, helping with infusion ...
$18.25 - $23.25/hr
The PAR III will be helping with the workload for infusion, hematology, and proton therapy authorizations. Candidate will work in the Central Authorization Department, helping with infusion ...
Los Angeles, CA · On-site
$70K/yr
Discovery of modulators or inhibitors of proton channels Preferred Background * PhD in Neuroscience, Physiology, Biophysics, Molecular Biology, or related field * Strong foundation in ...
Los Angeles, CA · On-site
$70K/yr
Discovery of modulators or inhibitors of proton channels Preferred Background * PhD in Neuroscience, Physiology, Biophysics, Molecular Biology, or related field * Strong foundation in ...
Loma Linda, CA · On-site
Must be knowledgeable about these highly specialized courses of treatment that employs the use of external ionizing radiation including x-rays, proton and brachytherapy using sealed sources of ...
Loma Linda, CA · On-site
Must be knowledgeable about these highly specialized courses of treatment that employs the use of external ionizing radiation including x-rays, proton and brachytherapy using sealed sources of ...
San Diego, CA · On-site
$64.37 - $96.55/hr
This specialized role supports the three distinct units that comprise Hematology/Oncology: the Inpatient Unit, the Outpatient Clinic, and the Proton Therapy Unit. The CNS will focus on 3 main ...
San Diego, CA · On-site
$64.37 - $96.55/hr
This specialized role supports the three distinct units that comprise Hematology/Oncology: the Inpatient Unit, the Outpatient Clinic, and the Proton Therapy Unit. The CNS will focus on 3 main ...
Los Angeles, CA · On-site
$70K/yr
Discovery of modulators or inhibitors of proton channels Preferred Background * PhD in Neuroscience, Physiology, Biophysics, Molecular Biology, or related field * Strong foundation in ...
Los Angeles, CA · On-site
$70K/yr
Discovery of modulators or inhibitors of proton channels Preferred Background * PhD in Neuroscience, Physiology, Biophysics, Molecular Biology, or related field * Strong foundation in ...
Discovery of modulators or inhibitors of proton channels Preferred Background * PhD in Neuroscience, Physiology, Biophysics, Molecular Biology, or related field * Strong foundation in ...
Discovery of modulators or inhibitors of proton channels Preferred Background * PhD in Neuroscience, Physiology, Biophysics, Molecular Biology, or related field * Strong foundation in ...
Loma Linda, CA · On-site
Must be knowledgeable about these highly specialized courses of treatment that employs the use of external ionizing radiation including x-rays, proton and brachytherapy using sealed sources of ...
Loma Linda, CA · On-site
Must be knowledgeable about these highly specialized courses of treatment that employs the use of external ionizing radiation including x-rays, proton and brachytherapy using sealed sources of ...
This specialized role supports the three distinct units that comprise Hematology/Oncology: the Inpatient Unit, the Outpatient Clinic, and the Proton Therapy Unit. The CNS will focus on 3 main ...
This specialized role supports the three distinct units that comprise Hematology/Oncology: the Inpatient Unit, the Outpatient Clinic, and the Proton Therapy Unit. The CNS will focus on 3 main ...
San Diego, CA · On-site
$64.37 - $96.55/hr
This specialized role supports the three distinct units that comprise Hematology/Oncology: the Inpatient Unit, the Outpatient Clinic, and the Proton Therapy Unit. The CNS will focus on 3 main ...
San Diego, CA · On-site
$64.37 - $96.55/hr
This specialized role supports the three distinct units that comprise Hematology/Oncology: the Inpatient Unit, the Outpatient Clinic, and the Proton Therapy Unit. The CNS will focus on 3 main ...
Loma Linda, CA · On-site
Calibration Physicist 1 is responsible for verification of proton treatment delivery and periodic quality assurance of proton beamlines and treatment devices. Performs other duties as needed.
Loma Linda, CA · On-site
Calibration Physicist 1 is responsible for verification of proton treatment delivery and periodic quality assurance of proton beamlines and treatment devices. Performs other duties as needed.
Calibration Physicist 1 is responsible for verification of proton treatment delivery and periodic quality assurance of proton beamlines and treatment devices. Performs other duties as needed.
Calibration Physicist 1 is responsible for verification of proton treatment delivery and periodic quality assurance of proton beamlines and treatment devices. Performs other duties as needed.
Loma Linda, CA · On-site
$30.38 - $40.87/hr
Calibration Physicist 1 is responsible for verification of proton treatment delivery and periodic quality assurance of proton beamlines and treatment devices. Performs other duties as needed.
Loma Linda, CA · On-site
$30.38 - $40.87/hr
Calibration Physicist 1 is responsible for verification of proton treatment delivery and periodic quality assurance of proton beamlines and treatment devices. Performs other duties as needed.
Proton planning experience preferred. Certified in Medical Dosimetry required, or certification needs to be completed within two years of hire. Additional Information: These positions will support ...
Proton planning experience preferred. Certified in Medical Dosimetry required, or certification needs to be completed within two years of hire. Additional Information: These positions will support ...
San Bernardino, CA · On-site
$110K - $143K/yr
In this job, you will analyze, design, test, and integrate advanced electrical components for cutting-edge proton radiation equipment. You will work across multidisciplinary teams to ensure system ...
San Bernardino, CA · On-site
$110K - $143K/yr
In this job, you will analyze, design, test, and integrate advanced electrical components for cutting-edge proton radiation equipment. You will work across multidisciplinary teams to ensure system ...
$5.22 - $8.07
0% of jobs
$8.07 - $10.91
0% of jobs
$10.91 - $13.76
0% of jobs
$13.76 - $16.61
0% of jobs
$16.61 - $19.45
0% of jobs
$19.45 - $22.30
3% of jobs
$23.38 is the 25th percentile. Wages below this are outliers.
$22.30 - $25.15
58% of jobs
$25.15 - $27.99
7% of jobs
$30.13 is the 75th percentile. Wages above this are outliers.
$27.99 - $30.84
9% of jobs
$30.84 - $33.69
11% of jobs
$33.69 - $36.53
11% of jobs
$5
$27
$36
| Aspect | Proton | Radiologic Technologist |
|---|---|---|
| Credentials | Proton therapy certification, physics background | Radiologic technology certification, ARRT license |
| Work Environment | Hospitals, cancer treatment centers | Hospitals, clinics, imaging centers |
| Industry Usage | Specialized cancer treatment | Medical imaging and diagnostics |
| Common Search/Comparison | Proton vs Radiologic Technologist | Radiologic Technologist roles and responsibilities |
Proton therapists focus on delivering proton beam therapy for cancer treatment, requiring specialized physics knowledge and certification. Radiologic Technologists perform diagnostic imaging procedures like X-rays and MRIs, with different certifications and work environments. While both roles are in healthcare and involve imaging, Proton is a specialized therapy role, whereas Radiologic Technologist is more general in medical imaging.
For Proton jobs in California, the most frequently searched job titles are:
The top searched job categories for Proton jobs in California are:
Cities in California with the most Proton job openings:

About Proton
Join Proton and build a better internet where privacy is the default
Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we've built the world's largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives!
We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 500+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of. Check our open-source projects here!
The RoleYou will help shape how Proton shows up in the world, not just as a product, but as a movement. Working closely with key stakeholders, your manager, and the wider Social & Community team, you'll strategize and deploy systems, spaces, and experiences that turn curious users into committed advocates, and committed advocates into a global privacy fandom. This role blends strategic thinking, community execution, culture intuition, program delivery, and organic engagement. You'll help define how Proton builds belonging at scale across a digital community hub, micro-communities, ambassador tiers, events, and real-world touchpoints, owning delivery end-to-end on the programs within your scope.
If you understand that community is not a channel but a force multiplier, and that belonging is built through design, storytelling, and human connection, this is your role.
The TeamThis role is part of the Social & Community team at Proton - a small, high-impact group of 5 people that builds Proton's brand the way modern cult brands do it: with a human voice, community-first engagement, and sharp, timely creative that people actually want to share. What makes the team special is our relentless ambition: we move fast, take principled stances when it matters, and pair rigorous performance thinking with internet instincts, earning the kind of audience feedback most brands never get ("genius level trolling," "10/10 Proton marketing team," "great marketing," "social media masterclass," "best repost I've seen in a while" "deserves a raise") or getting compared to Wendy's. If you want to do career-defining work with a team that's trusted to experiment, backed by a mission people care about, and measured on real impact, you'll fit right in.
Check out some of our 2025 highlights: Google would never, Rumour has it …, Ghibli Trend Gone Wrong, Spyyyyyy Messenger, No, but I bet you do Youtube.
What you'll do Craft the community blueprint. Working with your manager, you'll help shape the foundation of Proton's community ecosystem and own delivery of the programs within your remit:Mentor and contribute to team standards. Share expertise with more junior team members and contribute to the practices the Social & Community team operates by.
Job RequirementsBonus points for
What We Offer
Work that Matters: millions of people trust Proton with their privacy. We answer only to our users — not advertisers, not investors with conflicting agendas, not governments. The work you do here is real, and the impact is measurable. (read more about our impact here)
Stock Options: at Proton, we all have the opportunity to be owners of the company. From day one, you have a real stake in what we're building. When Proton wins, you win.
Technology: you'll get the right hardware and the right software you need to do your best work.
Learning & Development: we invest in your growth because sharp people make us better. Proton is one of the fastest ways to accelerate your career because you'll be thrown into real challenges, with real ownership, from day one.
Employee Benefits: your wellbeing isn't an afterthought. We offer strong health coverage, solid retirement options, generous leave, and wellness support so you can bring your best self to work every day
In-Person Collaboration: Amazing things happen when passionate, smart, and purposeful people get together in the same room. With offices across Geneva, Zürich, Barcelona, London and more, you'll spend most of your time collaborating face-to-face with people who genuinely care about what they're building
Flexible Working: you own your schedule. Set hours that work for you and your team — because outcomes matter more than when the clock says you started.
Check our social media to learn more about Proton:
X, LinkedIn ,Reddit , Instagram, YouTube
Our commitment to diversity and inclusion
At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals, regardless of race, ethnicity, gender, age, sexual orientation, physical ability or socio-economic background feel valued and empowered. We strive to create equal opportunities, promote open dialogue and support continuous learning to ensure every voice is heard and respected.
If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know.
Candidate privacy notice
When you apply for a position, refer a candidate or are considered for a role at Proton Technologies AG (Proton, we, us or our), your information is stored in Greenhouse, in accordance with its Service Privacy Policy. This information is used to evaluate your suitability for the posted position. We also retain this information for consideration for future roles that you may apply for or that we believe may align with your background and skills.
If we no longer have a legitimate business need to process your information, we will either delete or anonymise it. Should you have any inquiries about how we use or manage your information or if you wish to access, correct or delete your data, please contact our privacy team at careers@proton.ch.
Proton does not accept unsolicited CVs from any sources other than directly from candidates. We will not pay a fee for any placement resulting from an unsolicited offer, even if the candidate is subsequently hired by Proton.
To learn more about our privacy policy, please visit our privacy policy page.
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Sourced by ZipRecruiter
Software development
51 - 200 Employees
Cambridge, MA, US
2018