Back to Jobs

Senior Ruby on Rails Engineer

Remote, USA Full-time Posted 2026-06-18

Our Vision & Products

🚀 EverAI — Building the Future of AI Companionship

One of the Top 15 Largest & Fastest-Growing AI Companies in the World

30+ Million Users in under 2 years — Help Us Reach 100M first, 500M next

At EverAI, we’re shaping what it means to connect with AI. With 30+ million users and counting, we're not just building products — we're creating entirely new categories.

Our flagship product is the world’s largest AI girlfriend/boyfriend 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.

And we’re only just getting started!

Our Team

We are an enthusiastic, passionate and hardworking team of 70 people. Our founding team has strong entrepreneurial experience building and scaling web products from 0 to IPO.

Alexis Soulopoulos [CEO]

• 10+ years in Tech Executive Leadership

• Co-Founder Mad Paws Holdings (from 0 to IPO)

• Forbes 30 under 30 + Deloitte TechFast50 ’22 & ‘23

Michael Monin [Co-founder & CTO]

• 10+ years as CTO / COO (web2/web3), 1+ year in AI/LLM

• Serial-entrepreneur: MTK Digital (exited / 0->$20m revenue) and Zipchat (AI Chatbot for E-commerce brands)

Thomas Lacroix [Co-founder & CMO]

• 8+ years in Customer Acquisition & E-commerce Growth

• Serial-entrepreneur: Curatible (sold to Blackstone) and MTK Digital (exited / 0->$20m revenue)

Maruša Fasano [CFO/Legal]

• 25+ years in Finance, Strategy, M&A

• Ex-CFO/M&A @Curatible (exited to Blackstone)

• Ex-President of the Board @SotremoSA (exited)

• Co-founder/CFO @SoftOne (exited)

Your Role

Our 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 (Back-end / Ruby) 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.

Reporting directly to our Tech Lead, you will be responsible for:

  • Interacting with the Product Manager to review project specs

  • Preparing integration plans, break-downs, and estimations

  • Hands-on code implementation, PRs, code reviews, testing, etc.

You'll be working with Michael (co-founder and CTO) along with the product team and the engineering team (web developers, SRE, data scientists).

💎 NB: while we remain open to full-stack expertise, we are looking for people with a strong edge on back-end development using Ruby-on-Rails.

Your Qualifications

Must-haves

💼 5+ years of experience:

  • As a back-end or full-stack software engineer - recent experience with Ruby-on-Rails is mandatory

  • In tech scale-ups or any similarly agile and fast-paced environment

  • On large-scale products where your code was used by thousands of monthly users

🗣 Strong communication & collaborative skills (perfectly fluent in English)

🧢 Ownership and commitment - we’re looking for owners, not renters

⚡️ Doer mindset - we are moving fast and we need people who can find the right balance between software craftsmanship and velocity

🫶🏻 User-centricity - you are proud of what you build and you share our obsession for amazing user experience

🍭 #NSFW - you are comfortable building products that are based on uncensored models and content

Bonus points

  • Past experience and/or interest in data science and generative AI (NLP, ML, MLOps…)

  • Experience working with globally distributed teams

Why EverAI?

📈 Exponential Growth: From 30M+ users in 18 months, to 100M next — and 500M beyond

🚀 Track Record of Category-Creating Innovation: We consistently launch world-first AI applications — setting the pace, not following it

🌍 Global Impact: Top-tier user growth, real-world adoption, and cultural relevance

🧠 Proven Leadership: A senior team that’s launched, scaled, and exited & IPO’d multiple scale ups — now fully focused on reshaping AI companionship

👥 Elite 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

🛡️ Ethical Core: Our AI ecosystem is governed by EverGuard, our proprietary AI moderation technology, ensuring responsible development at scale

What We Offer

✍️ We prefer a B2B contract but we can be flexible, as long as you’re in it for the long haul

📍 Full-remote (you work from the place that suits you best)

🏝️ 4 weeks PTO

👨‍👩‍👧‍👦 Annual gathering to get to know each other better

❤️‍🩹 Health & Wellness support: Up to $200 for your wellbeing expenses + Access to unlimited 1:1 sessions with psychologists and lifestyle experts through OpenUp (also available to up to three of your family members)

📚 Learning budget

💻 Company laptop

⚡️ GPT-4, Mistral and Hugging Face Pro plan

Please mention the word SUFFICIENT and tag RMjYwNzo1MzAwOjIwZDo3ZDAwOjo= when applying to show you read the job post completely (#RMjYwNzo1MzAwOjIwZDo3ZDAwOjo=). This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human. Apply To This Job

Similar Jobs

Senior Performance Marketer

Remote, USA Full-time

Mid level Backend Dev for SaaS the music industry

Remote, USA Full-time

Online Data Research with Bonus

Remote, USA Full-time

Engineering Lead

Remote, USA Full-time

Senior Editor

Remote, USA Full-time

Manager Business Intelligence

Remote, USA Full-time

Software Engineer Gauntlet App

Remote, USA Full-time

LLM Data Engineer

Remote, USA Full-time

Hybrid Call Center Representative, Public Safety - Dispatch Center, Full Time, First Shift

Remote, USA Full-time

Senior Designer UI

Remote, USA Full-time

Entry Level/No Experience arenaflex Data Entry Clerk – Launch Your Career in a Dynamic and Fast-Paced Environment with Opportunities for Growth and Development

Remote, USA Full-time

Transcriptionist

Remote, USA Full-time

Sr. Social Media Manager (Contract to Hire)

Remote, USA Full-time

Live Chat Support Specialist (Remote/Office) - Deliver Exceptional Customer Experiences

Remote, USA Full-time

Experienced Data Entry Specialist – Online Market Research and Customer Service

Remote, USA Full-time

Principal Software Engineer ? (25-120) - R10190304

Remote, USA Full-time

Director of Customer Support - Hybrid: Leading a High-Performing Team to Deliver Exceptional Customer Experiences in a Dynamic SaaS Environment at blithequark

Remote, USA Full-time

Adobe Experience Manager (AEM) Developer

Remote, USA Full-time

Remote Customer Support Representative – Aviation Travel Industry (Work From Home)

Remote, USA Full-time

Experienced Customer Experience Concierge – Remote Chat Professional at arenaflex

Remote, USA Full-time