Empregos de frontiers em Lisboa

Mercor in Lisbon, Portugal seeks an experienced AI Safety Practitioner to evaluate the safety, quality, and alignment of frontier AI models across complex, policy-sensitive topics. You will assess AI-generated responses, apply safety policies, and help improve model behavior through structured evaluations and feedback. Responsibilities include evaluating...

Obsidian is seeking experienced AI Safety Practitioners to evaluate the safety, quality, and alignment of frontier AI models across complex, policy-sensitive topics. You will assess AI-generated responses and provide structured feedback to improve model behavior. Join a collaborative team of researchers and safety engineers to develop evaluation rubrics,...

Mercor is seeking experienced AI Safety Red Teamers to identify vulnerabilities in frontier AI systems through adversarial testing. You will design challenging prompts, uncover model weaknesses, and evaluate AI behavior across complex, high-risk topics. The role focuses on stress-testing models, documenting vulnerabilities, and collaborating with...

Obsidian seeks experienced AI Safety Practitioners to evaluate safety, quality, and alignment of frontier AI models across complex, policy-sensitive topics. You will assess AI-generated responses, apply safety policies, and help improve model behavior through structured evaluations and feedback. You will collaborate with researchers and safety teams on...

Mercor is seeking experienced AI Safety Practitioners to evaluate frontier AI models across safety, alignment, and policy-sensitive topics. You will assess AI-generated responses, apply safety policies, and provide structured feedback to improve model behavior. Collaborate with researchers and safety teams on RLHF/SFT evaluations, review misinformation,...

Mercor connects elite creative and technical talent with leading AI research labs. Remote contractor role as AI Safety Red Teamer designing adversarial prompts to stress-test frontier AI models.You will identify jailbreaks, unsafe behaviors, and policy failures, and evaluate model robustness across misinformation, cyber, biosecurity, fraud, political...

About the Role - Mercor is partnering with a leading AI research lab to support a Frontier Code Agents project. - Contributors help evaluate and improve frontier AI coding models through structured technical assessments. - The work focuses on realistic infrastructure engineering workflows and model evaluation. - Spots are limited and filling quickly on a...

We are seeking experienced AI Safety Red Teamers to identify vulnerabilities in frontier AI systems through adversarial testing. You will design challenging prompts, uncover model weaknesses, and evaluate AI behavior across complex, high-risk, and ambiguous ("grey-area") topics. Responsibilities - Design adversarial prompts to stress-test frontier AI...

Keyrock seeks a Senior Rust Engineer with deep trading systems experience and strong AWS knowledge to join our Capital Markets division. You will own core trading infrastructure, design scalable components, and drive improvements in performance and reliability. You will join a fully remote, global team with European time‑zone alignment and participate in...

Mercor partners with a leading AI research lab to support a Frontier Code Agents project focused on infrastructure engineering and model evaluation. Contributors evaluate complex tasks, review cloud, Kubernetes, CI/CD, observability, and automation outputs, and identify bugs and edge cases using professional judgment. The role centers on realistic...

Mercor is seeking experienced AI Safety Red Teamers to identify vulnerabilities in frontier AI systems through adversarial testing. You will design challenging prompts, uncover model weaknesses, and evaluate AI behavior across high-risk and ambiguous topics.Responsibilities include designing adversarial prompts, identifying jailbreaks, unsafe behaviours, and...

Altium Limited is seeking a Senior AI Engineer to push the frontier of AI in Requirements Management and Hardware Engineering. You will design, develop, and deploy LLM‑driven systems used by hardware product teams worldwide, shaping production‑level AI capabilities in a product‑led environment. Join a collaborative team focused on autonomous, creative...

Mercor is seeking experienced AI Safety Practitioners to evaluate the safety, quality, and alignment of frontier AI models across complex, policy-sensitive topics. You will assess AI-generated responses, apply safety policies, and help improve model behavior through structured evaluations and feedback.Responsibilities include reviewing content on...

Mercor is seeking UK or Europe-based generalist experts to help train and evaluate frontier AI models. In this role, you’ll review documents, slides, spreadsheets, and other materials, judging quality, accuracy, and completeness. Your feedback shapes how AI systems reason about real-world work output. We value sharp, detail-oriented generalists who can...

Mercor is seeking UK or Europe-based generalists to train and evaluate frontier AI models. You will review documents, slides, and spreadsheets for quality, accuracy, and completeness, and provide clear written feedback that shapes how AI systems reason about real-world work.No deep subject specialization is required; strong judgment, careful reading, and...

Mercor seeks UK or Europe-based generalist experts to help train and evaluate frontier AI models. You will review documents, slides, spreadsheets, and other written materials, judging quality, accuracy, clarity, and completeness. Your feedback shapes how AI systems reason about real-world work products. This role suits sharp, detail-oriented generalists who...

Mercor seeks UK or Europe-based generalist experts to train and evaluate frontier AI models by reviewing documents, slides, and spreadsheets for quality, accuracy, and completeness. You will provide clear written feedback and ratings, shaping how AI systems reason about real-world work products. This role values sharp judgment, attention to detail, and the...

Anyone AI is seeking biology experts to design advanced, deterministic problems for frontier AI systems. The role is remote and part-time (20 hours per week) with compensation up to 40 USD per hour. Initial contract is for 2 months with potential extension, focusing on molecular biology, genetics, systems biology, and related fields. Candidates should hold...

Altium Limited is seeking a Senior AI Engineer to push the frontier of AI in Requirements Management and Hardware Engineering. You will design, develop, and deploy LLM‑driven systems used by hardware product teams worldwide, shaping production‑level AI capabilities in a product‑led environment. Join a collaborative team focused on autonomous,...

We are seeking experienced AI Safety Practitioners to evaluate the safety, quality, and alignment of frontier AI models across complex, policy-sensitive, and ambiguous ("grey-area") topics. You will assess AI-generated responses, apply safety policies, and help improve model behavior through structured evaluations and feedback. Responsibilities - Evaluate...