Empregos para e-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...

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...

Poolside is seeking a Product Lead to define the product vision and shape developer experiences at the intersection of AI and software development. You will drive product strategy, lead rapid prototyping, and work closely with engineering and design teams. The ideal candidate has a strong product intuition, coding experience, and a deep understanding of...

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...

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...

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...

Alignerr in Lisbon is seeking Software Engineers to build, evaluate, and improve AI-generated code for training AI systems to think like real developers. You will write solutions, review AI outputs, and provide expert feedback. This remote, hourly contract role offers flexible hours and the chance to work asynchronously on frontier AI projects with...

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...

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...

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...

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...

About synvert a GlobalLogic company synvert, a GlobalLogic company, is a leading cloud, data, and AI services company, partnering with enterprises to design, implement, and manage end-to-end data and AI solutions that drive measurable business impact, combining deep technical expertise with strong industry knowledge across different sectors. As part of...

In alignment with our trajectory of growth, Upya is actively seeking a dynamic and motivated Data Analytics Intern. This role offers a unique opportunity to be part of a fast-growing team dedicated to making a positive impact on the planet through carbon offset solutions. The role is based in our Lisbon office. The ideal candidate will get the chance to...

- Help build foundational perception technology for a robotics platform designed for real-world impact across multiple industries. - Work on deeply technical problems at the frontier of AI, computer vision, 3D understanding, and embodied intelligence. - Join a small, senior, hands-on team where ownership is real and your work will directly shape the product...

Parkview Invest is a single-family office focused on long-term capital deployment across private equity, venture capital, and real assets. We take an active ownership approach, combining strategic capital with operational insight to support the growth of our investments. Through hands-on involvement and a global network of partners, we help build resilient,...

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.ResponsibilitiesEvaluate...