# Mid/Senior AI LLM Engineer (Full Remote - Europe) at EverAI

Mid/Senior AI LLM Engineer (Full Remote - Europe) at EverAI in Europe. Remote, full-time, paying €75k–€125k. Posted October 20, 2026.

- Company: EverAI
- Location: Europe
- Workplace: Remote
- Job type: Full-time
- Pay: €75k–€125k
- Experience: 10+ years
- Posted: 2026-10-20
- Apply: https://jobs.ashbyhq.com/everai/6f9797f8-0768-4cf5-8112-7c8fe213f652/application
- Source: https://jobmagic.ai/jobs/midsenior-ai-llm-engineer-full-remote-europe-everai-r0b211

## Description

Our Vision & Products***🚀 EverAI — Building the Future of AI Companionship***
*One of the Top 15 Largest & Fastest-Growing AI Companies in the World*
*50 Million Users in 2 years — Help Us Reach 100M first, 500M next*

At **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.
Our 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**.
*And we’re only just getting started!*

Our TeamWe 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.

**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), 3 years 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

Most LLM roles stop at experimentation.
**Here, the models you improve power experiences for 50M+ users.**
Most of our traffic runs on **self-hosted, fine-tuned open-weight models**. On our internal roleplay evals, our smaller fine-tuned models can outperform much larger off-the-shelf models. **Your job is to make them better.**
You’ll join a small AI team led by **Marco, our LLM Tech Lead**, working closely with our CTO, Product, Web and DevOps teams. You’ll work across **data, post-training, evals, and model behavior,** taking ideas from failure analysis to production.
The problems are real: **personalization, character consistency, long conversations, better evals, multilingual behavior, and faster training cycles.If you want to shape model behavior at consumer scale, this is the role.**

### Key Responsibilities

- **Fine-tune open-weight LLMs** using SFT, LoRA/QLoRA and post-training methods such as DPO and GRPO

- **Diagnose model failures and turn them into experiments.** Decide whether the answer is better data, post-training, prompting or classifiers

- **Build training data and evals** that directly shape what gets trained next

- **Improve model behavior** across personalization, consistency, tone, multilingual and group interactions

- **Ship to production** and use real user behavior to guide the next iteration

- **Speed up the training loop** so experiments are faster, easier to compare, and more reproducible

Your Qualifications
- You’ve **personally post-trained open-weight LLMs** for a user-facing product and shipped them to production

- **You’ve worked where AI was core to the product or business**, not an experimental side feature

- **Fine-tuning** is core to your experience

- Strong **Python, PyTorch and Hugging Face**, with hands-on GPU training and debugging

- You **build data and evals yourself** and make decisions from evidence

- You can take work **beyond notebooks into production**

- You **use AI tools daily** in your own engineering work

- **You are fully comfortable working with uncensored models and explicit NSFW content**, including harmful material when developing and evaluating moderation system

### Bonus points

- Experience with conversational AI, roleplay products, or highly personalized consumer AI

- Multilingual LLMs

- Moderation, safety, or adversarial testing

- Multimodal models

- Open-source LLM / post-training contributions

Why EverAI?📈 **Exponential Growth**: From 50M users in 2 years, 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✍️ **Contract Type:** We prefer B2B, but we’re flexible, what matters is long-term commitment and impact
📍 **Work From Anywhere:** Fully remote. Choose the environment where you do your best work
🏝️ **Paid Time Off:** 4 weeks (20 working days) of PTO per year to recharge and reset
👨‍👩‍👧‍👦 **Annual Gathering:** A yearly in-person meetup to connect, brainstorm, and celebrate wins together
❤️‍🩹 **Health & Wellness Support: **Monthly allowance of100 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)
🏢 **Co-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
📚 **Learning Budget:** Dedicated funds to support your professional growth: courses, books, conferences, events, or certifications
💻 **Company Laptop & Equipment:** Laptop provided + monitor budget up to 250 USD + keyboard/mouse/mic/headphones budget up to 150 USD
⚡ **AI 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

🎯 Top Tier Talent Is Our MultiplierWe’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.
We’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.
**If that’s you — reach out and apply!**