🇪🇸 Barcelona, Spain
Senior AI Engineer
AppCast
TecnoempleoseniorEnglish-friendlyremote
Barcelona - Cataluña AI AI /Full-time Contrato Indefinido /Remote Who we are Lodgify is a fast-growing scale-up company leading the vacation rental industry. Backed by 30M in funding our platform empowers property owners and managers worldwide to efficiently manage and grow their business through technology. Headquartered in sunny Barcelona were now a team of 380+ people representing over 60 nationalities united by a passion for transforming the future of short-term rentals. Role Overview We are seeking a Senior AI Engineer specializing in LLMs to lead the design evaluation and deployment of production-grade generative AI systems. In this role you will own end-to-end LLM solutions from prototyping to scalable production while establishing best practices in evaluation reliability and responsible AI. How will you make an impact Lead the design and development of LLM-powered applications (chatbots copilots agents internal tools). Own and evolve the LLM evaluation (evals) strategy including designing gold-standard datasets and benchmarks building automated eval pipelines and scoring systems and defining metrics for factuality grounding robustness and user impact. Diagnose and resolve complex failure modes (hallucinations retrieval issues agent breakdowns). Optimize systems for latency cost scalability and reliability in production. Mentor junior engineers and guide best practices in LLM development and evaluation. Collaborate cross-functionally with product data and leadership to shape AI strategy. Set standards for responsible AI including safety bias mitigation and observability. What makes you a great fit 5+ years of experience in software engineering machine learning and applied AI with a track record of driving projects to completion. Strong software engineering fundamentals (testing modular design dependency injection) in Python. A track record of taking AI and LLM-powered features from initial concept through deployment and long-term production maintenance. Experience implementing automated testing strategies for non-deterministic systems and strong debugging and analytical skills for ambiguous model behavior. A strong understanding of prompt engineering and prompt lifecycle management RAG architectures and retrieval evaluation and LLM limitations and failure patterns. Solid experience in using Data Analytics techniques (SQL analysis and visualizations) to inform Product decisions and delivery. A heavy product mindset to deeply understand our product and our customer needs to design the right solutions for them. Strong tech leadership and mentorship skills and the ability to independently drive projects to completion. Clear communication of trade-offs risks and system performance to stakeholders. How can you earn extra bonus points Proven experience driving ambiguous projects to completion mentoring teams and communicating complex technical risks to stakeholders. The ability to design robust production-grade evaluation at scale using advanced metrics and statistical validation. Deep expertise in model fine-tuning adversarial red-teaming and safety testing to protect the system from edge-case vulnerabilities. Why youll love us Youll be part of a growing dynamic company with a truly international team. At Lodgify we are full of contagious energy hard work and passion for what we do. We celebrate diversity and are proud to acknowledge a variety of backgrounds perspectives and skills in our team committed to creating a workplace where everyone is heard and feels a sense of belonging. Whats in it for you Remote Flexibility The freedom to work from home any day that works for you. Time to Recharge 25 working days of paid vacation and Jornada Intensiva in August. Alan Health Insurance Premium health dental and mental health support via Alan. Pre-existing conditions are covered. Meal Perk 150/month allowance on your Alan card + 50 off Ametller Origen prepared dishes at the office. Tax-Free Savings Increase your take-home pay by using Flexible Remuneration for extra meal costs (up to 70/mo) and public transport (up to 136/mo). Home Office Gear We provide a table ergonomic chair and monitor for your home setup. Language Learning Free Spanish classes. Referrals Cash rewards for bringing in new talent. Social Life Daily office breakfast and monthly team events Dynamic Hub A high-energy inclusive environment designed for collaboration and connection with a team that represents over 60 countries. Benefits offered may differ based on the type of contract that is issued So what are you waiting for Apply now All applications and CVs must be submitted in English We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans.Sourced from Tecnoempleo. Relocantly aggregates public job postings; apply on the original site.