Senior Prompt Engineer

Project Lion in Portugal seeks a Senior Prompt Engineer to manage the end-to-end migration workflow for transitioning templates to LLM autoraters. You will use internal tools to maximize model performance and ensure high-quality prompts across complex template clusters. The role requires native Portuguese and fluent English, a strong background in prompt...

Rex.zone is seeking a senior AI Generalist for remote work based in Lisbon, Portugal, in 2026. The role supports AI training pipelines through data labeling, RLHF, and model evaluation to enhance NLP and vision tasks.Responsibilities include handling tasks from named entity recognition to content safety labeling, collaborating with AI labs and vendors,...

Farfetch is a leading global marketplace for the luxury fashion industry. The Farfetch Marketplace connects customers in over 190 countries and territories with items from more than 50 countries and over 1,400 of the world’s best brands, boutiques, and department stores, delivering a truly unique shopping experience and access to the most extensive...

Join GTS Europe Planning & Engineering as a Senior Industrial Engineer and be at the forefront of transforming how our organization works. In this high-impact role, you will partner with Operations, Technology, Regulatory, Compliance, and Business teams to analyze, redesign, and optimize end-to-end processes, driving productivity, efficiency, and operational...

Role & Team As our inaugural Senior Security Engineer, you will play a critical role in safeguarding Overstory’s systems, data, and reputation. Partnering closely with your manager - the Director of Information Security and Compliance - you will take ownership of our security and compliance posture, and define, implement, and continuously improve our...

We're fast learners, hard workers, natural collaborators... and weMake Modern Happen! Our ambition is to unlock the potential of our digital world so that organisations everywhere can innovate and thrive securely. We aim to achieve this goal by bringing together the world’s most talented people and the most powerful technologies, combining them to...

The Senior AI Engineer is an individual contributor who defines technical direction while driving the quality, scalability, and reliability of next‑generation AI‑powered systems. This role operates at the intersection of research, software engineering, and advanced testing, transforming cutting‑edge ideas into robust, production‑ready...

FinTrU is looking for a Senior Security Engineer to join our Information Security team on a permanent basis in Portugal. This is an exciting opportunity to lead security initiatives and to develop and implement solutions that will enhance FinTrU’s security position. You will be based at FinTrU Porto’s offices at Rua Santa Catarina, with hybrid working...

Based in Portugal, Wire IT is your specialized IT consulting partner with 18 years of experience driven by an experienced and senior team that helps clients make the right decisions in a fast-moving market. Wire IT's ambition is to grow while keeping true to its nature: agile, people-centered, and fun. As we like to say: It's not only what we do, it's how...