{"id":96829,"url":"https://alion.io/job/proton-vpn-software-engineer-back-end-storage","title":"Software Engineer - Back-End (Storage)","company":{"id":36577,"name":"Proton VPN","domain":"protonvpn.com","url":"https://alion.io/company/proton-vpn","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":87,"open_postings":53,"ghost_share":0.132,"stale_share":0,"repost_share":0.019,"time_to_fill_p50_days":110,"computed_at":"2026-10-13T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Geneva, Switzerland","Paris, France"],"countries":["CH","FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":79000,"max_usd":143000,"period":"year","method":"role_country_seniority_unknown","sample_n":78},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C++","optional":false},{"name":"PHP","optional":false},{"name":"Rust","optional":false},{"name":"VPN","optional":false}],"status":"live","first_seen_at":"2026-06-12T08:02:51Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-14T04:25:54Z","board_verified":true,"closed_at":null,"days_open":123,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":122},"description":"Join Proton and build a better internet where privacy is the default\nAt Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online.\nOur journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data.\nProton is a profitable company, supporting over 100 million user accounts with a growing team of over 500 people from over 50 different countries, from the world's top companies and universities. We value intelligence, learning potential, and ambition in our hiring process. Adaptability is key as we navigate uncharted territories and redefine how business is conducted online.\nHiring at Proton is highly selective. We believe smaller teams of exceptional talent will always prevail over larger teams with lower talent density. You will have the opportunity to work with many of the world's top minds in their fields.\nWe have a global mindset and big ambitions but remain a start-up at heart. We value empowerment and flexibility and keep our structure flat to keep moving fast. Tired of blending into the crowd? Join us and do work you can truly be proud of. \nPurpose of the role: \nStorage is at the very center of everything we do. Whatever needs to be persisted eventually uses our Storage infrastructure. For this we run our storage infrastructure predominantly on-premise in multiple data centers. In this role you will join the Storage Dev team that is responsible to develop and maintain all the software required in the Storage realm. This, among others, includes Storage APIs, Seaweed & Ceph contributions.\nWhat you will do: \nBe responsible for the operational excellence of the systems/features and their interaction with other systems\nWork closely with a group of Back-End Engineers and Architects to build resilient, massively-scalable solutions for millions of people to rely on \nCollaborate with the SRE teams and other stakeholders to ensure that the Storage back-end meets critical business and reliability requirements\nDocument back-end capabilities and their proper use\nCreate technical designs and implement them to further develop the platform \nJob requirements: \nDeep experience with Back-end development (C++, Go, Rust, or PHP)\nExperience building complex production systems\nExperience with profiling methods and tools \nExperience leading a team initiative from discovery to production\nSolid understanding of security best practices\nHigh-level understanding of cryptography concepts\nBonus points for: \nExperience with storage systems (e.g. Ceph, Seaweed or Tape)\nOperational experience such as SRE or on-call, demonstrating ability to diagnose and troubleshoot complex problems for critical systems \nEven if you don’t meet all the requirements listed above, but feel you could still be a great fit, please still apply.\nWhat We Offer\nOffice First: Proton is an office-first company. We expect you to spend most of your time in the office, and while we do offer some flexibility to work from home, we believe in-person collaboration helps us build the best products.\nTechnology: We provide all the devices and software you need to excel in your role, ensuring you have the best tools at your disposal to achieve your goals.\nFood: Lunch and snacks are provided by Proton every day at our offices.\nTransport: We will always support our employees with transport costs through subsidizing public transport, bike allowances, or parking spaces based on your office location.\nStock Options: At Proton, we are all owners of the company and you get stock options when you join us.\nFlexible Working: You can define your own working hours as long as it works with team meetings.\nLearning and Development: We are committed to your professional growth. Proton offers various learning opportunities, including training programs, conferences and events, and continual learning.\nEmployee Benefits: Comprehensive health insurance plans, competitive retirement savings options, generous vacation and leave policies, and wellness programs.\nWork that Matters: Proton is a community-first organization, started with the support of a crowdfunding campaign and built with community input. To this day, Proton’s only source of revenue is user subscriptions. Over 100 million people trust and support Proton, and we put our users and community first in everything we do. Read more about our impact here.\nOur Commitment to Diversity and Inclusion\nAt 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.\nIf you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know.\nCandidate Privacy Notice\nWhen 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 their 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.\nIf we no longer have a legitimate business need to process your information, we will either delete or anonymize 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 .\nProton does not accept unsolicited resumes 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.\nTo learn more about our privacy policy, please visit our privacy policy page.","description_format":"text","description_chars":6481,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Flexible schedule","Generous vacation","Health insurance","Stock options","Wellness"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["VPN & Proxy Services"],"lifecycle":[{"event":"open","at":"2026-06-12T08:02:51Z"}],"visa":[],"liveness":{"score":30,"band":"fade","label":"Fading","p_open":1,"p_active":0.671,"p_room":0.44,"age_days":122,"expected_fill_days":110,"reasons":["conf:0","velocity","win:tail","crowd:"],"computed_at":"2026-10-13T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/proton-vpn-software-engineer-back-end-storage","json_url":"https://alion.io/job/proton-vpn-software-engineer-back-end-storage.json","meta":{"generated_at":"2026-10-14T04:27:19Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":6276,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":36577},"rest":"https://alion.io/mcp/rest/get_company?id=36577"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fproton-vpn-software-engineer-back-end-storage"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fproton-vpn-software-engineer-back-end-storage"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fproton-vpn-software-engineer-back-end-storage"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/proton-vpn-software-engineer-back-end-storage\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fproton-vpn-software-engineer-back-end-storage"}]}