{"id":70079,"url":"https://alion.io/job/everai-senior-software-engineer-ruby-on-rails-full-remote-europe-3","title":"Senior Software Engineer (Ruby on Rails) (Remote - Europe)","company":{"id":3397,"name":"EverAI","domain":"everai.com","url":"https://alion.io/company/everai","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":84,"open_postings":32,"ghost_share":0.281,"stale_share":0,"repost_share":0.281,"time_to_fill_p50_days":12,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["ES","DE","FR","GB","AT","BE","BG","HR","CZ","DK","FI","HU","IE","IT","NL","NO","PL","RO","SE","CH","EE","GR","IS","LV","LI","LT","LU","MT","PT","SK","SI"],"hiring_countries_total":31,"salary":{"min":75000,"max":105000,"currency":"EUR","period":"year","gross":null,"usd_annual":117666},"salary_estimate":null,"experience_years_min":25,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Hotwire","optional":false},{"name":"LLM","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Redis","optional":false},{"name":"Ruby","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"Stimulus","optional":false},{"name":"Tailwind CSS","optional":false},{"name":"ChatGPT","optional":true},{"name":"Claude Code","optional":true},{"name":"Hugging Face","optional":true},{"name":"NLP","optional":true}],"status":"closed","first_seen_at":"2026-08-17T09:23:20Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-10T16:05:01Z","board_verified":false,"closed_at":"2026-11-10T16:05:01Z","days_open":85,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":84},"description":"Our Vision & Products\nEverAI - Building the Future of AI Companionship\nOne of the Top 15 Largest & Fastest-Growing AI Companies in the World\n50 Million Users in 2 years - Help Us Reach 100M first, 500M next\nAt EverAI, we’re shaping what it means to connect with AI. With 50 million users and counting, we're not just building products - we're creating entirely new categories.\nOur flagship product is the world’s largest AI companionship platform, redefining relationships for millions. It is governed by our proprietary moderation system, EverGuard - an internal AI designed to ensure everything we build is safe, ethical, and human-first.\nAnd we’re only just getting started!\nOur Team\nWe are an enthusiastic, passionate and hardworking team of ≈ 100 people. Our founding team has strong entrepreneurial experience building and scaling web products from 0 to IPO.\nAlexis Soulopoulos [CEO]\n\n10+ years in Tech Executive Leadership\n\nCo-Founder Mad Paws Holdings (from 0 to IPO)\n\nForbes 30 under 30 + Deloitte TechFast50 ’22 & ‘23\nMichael Monin [Co-founder & CTO]\n\n10+ years as CTO / COO (web2/web3), 3 years in AI/LLM\n\nSerial-entrepreneur: MTK Digital (exited / 0->$20m revenue) and Zipchat (AI Chatbot for E-commerce brands)\nThomas Lacroix [Co-founder & CMO]\n\n8+ years in Customer Acquisition & E-commerce Growth\n\nSerial-entrepreneur: Curatible (sold to Blackstone) and MTK Digital (exited / 0->$20m revenue)\nMaruša Fasano [CFO/Legal]\n\n25+ years in Finance, Strategy, M&A\n\nEx-CFO/M&A @Curatible (exited to Blackstone)\n\nEx-President of the Board @SotremoSA (exited)\n\nCo-founder/CFO @SoftOne (exited)\nYour Role\nOur tech team is expanding rapidly to keep pace with the ambitious feature roadmap we've set out. We are therefore hiring experienced Senior Software Engineers, to help us build and scale our product. You’ll have the opportunity to help define our roadmap and find the best technical solutions to help our customers. You will also have time to run some experiments and bring new ideas to the table.\nReporting directly to our Tech Lead, you will be responsible for:\nInteracting with the Product Manager to review project specs\n\nPreparing integration plans, break-downs, and estimations\n\nHands-on code implementation, PRs, code reviews, testing, etc.\n\nYou'll be working with Michael (co-founder and CTO) along with the product team and the engineering team (web developers, SRE, data scientists).\nWhat you will be working with\nRuby, Ruby on Rails (latest)\n\nPostgreSQL, Redis\n\nHotwire (Turbo & Stimulus)\n\nTailwind CSS\n\nYour Qualifications\nMust-haves\n5+ years of experience:\nAs a back-end or full-stack software engineer\n\nIn tech scale-ups or any similarly agile and fast-paced environment\n\nOn large-scale products where your code was used by thousands of monthly users\n\nStrong communication & collaborative skills (perfectly fluent in English)\nOwnership and commitment - we’re looking for owners, not renters\nDoer mindset - we are moving fast and we need people who can find the right balance between software craftsmanship and velocity\n User-centricity - you are proud of what you build and you share our obsession for amazing user experience\n#NSFW - you are comfortable building products that are based on uncensored models and content\nBonus points\nPast experience and/or interest in data science and generative AI (NLP, ML, MLOps, etc.)\n\nExperience working with globally distributed teams\n\nWhy EverAI?\nExponential Growth: From 50M users in 2 years, to 100M next - and 500M beyond\nTrack Record of Category-Creating Innovation: We consistently launch world-first AI applications - setting the pace, not following it\nGlobal Impact: Top-tier user growth, real-world adoption, and cultural relevance\nProven Leadership: A senior team that’s launched, scaled, and exited & IPO’d multiple scale ups - now fully focused on reshaping AI companionship\nElite Remote Team: 100% remote and built to win - world-class talent from Tier 1 tech companies, with a culture of ownership, velocity, and radical creativity\nEthical Core: Our AI ecosystem is governed by EverGuard, our proprietary AI moderation technology, ensuring responsible development at scale\nWhat We Offer\nContract Type: We prefer B2B, but we’re flexible, what matters is long-term commitment and impact\nWork From Anywhere: Fully remote. Choose the environment where you do your best work\nPaid Time Off: 4 weeks (20 working days) of PTO per year to recharge and reset\nAnnual Gathering: A yearly in-person meetup to connect, brainstorm, and celebrate wins together\nHealth & Wellness Support: Monthly allowance of 100 USD for health insurance expenses & access to unlimited 1:1 sessions with psychologists and lifestyle experts through OpenUp (also available to up to three of your family members)\nCo-Working Space Budget: Work from a co-working space up to twice per month (35 EUR / 40 USD per visit) to stay inspired and connected\nLearning Budget: Dedicated funds to support your professional growth: courses, books, conferences, events, or certifications\nCompany Laptop & Equipment: Laptop provided + monitor budget up to 250 USD + keyboard/mouse/mic/headphones budget up to 150 USD\nAI Tools Access: Premium access to ChatGPT, Hugging Face, Claude Code, and any other tool needed to excel at your job, power your ideas and workflows\nTop Tier Talent Is Our Multiplier\nWe’re a fully remote group of A-players from Tier 1 tech, led by an exec team who’ve launched, scaled, and exited multiple companies. We move fast, and care deeply about what we build - and who we build it with.\nWe’re looking for exceptional talent ready to ship & distribute world-first AI products at scale, fast, and co-create with us this category-defining business.\nIf that’s you - reach out and apply!","description_format":"text","description_chars":5733,"description_truncated":false,"requirements":{"experience_years_min":25,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Health insurance"],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"region"},{"name":"Germany","iso":"DE","kind":"region"},{"name":"France","iso":"FR","kind":"region"},{"name":"United 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