Empregos de ai safety practitioner em Porto

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...

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: AI Safety Practitioner Type: Contract Compensation: $60–$70/hour Location: Remote Role...

AI Safety Specialist needed to red team conversational AI models, generate data, and document risks. Requires fluency in English and Portuguese, with prior AI red teaming experience.

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: AI Safety Practitioner Type: Contract Compensation: $60–$70/hour Location: Remote Role...

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey .Position: AI Safety Red Teamer | Type: Contract | Compensation: $70–$84/hour | Location: RemoteRole...

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 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...

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,...

Location: Remote Fluent Language Skills Required: English & Portuguese (global, excluding Brazilian Portuguese). Native fluency in English and Portuguese (global, excluding Brazilian Portuguese) is required for this position. Why This Role Exists At Mercor, we believe the safest AI is the one that is already been attacked - by us. We are assembling a red...

Location: Remote Fluent Language Skills Required: English & Portuguese (global, excluding Brazilian Portuguese). Native fluency in English and Portuguese (global, excluding Brazilian Portuguese) is required for this position. Why This Role Exists At Mercor, we believe the safest AI is the one that’s already been attacked - by us. We are assembling a red...

Mercor is seeking a passionate AI red team specialist to stress-test conversational agents. You will simulate jailbreaks, prompt injections, and bias exploitation to surface vulnerabilities and improve safety across integrations. You will produce reproducible artifacts, annotate failures, and follow taxonomies and playbooks to keep testing consistent....

Mercor seeks an AI Safety Practitioner for a remote contract position. You will evaluate AI-generated responses for safety, factual accuracy, and policy compliance, reviewing content across sensitive domains and applying evaluation rubrics for RLHF, SFT, and benchmarking. Strong English, critical thinking, and analytical skills are required. You will...

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 connects elite creative and technical talent with leading AI research labs and offers a remote contract position for AI Safety Experts fluent in English and Portuguese. The role focuses on red-teaming conversational AI, annotating failures, and documenting vulnerabilities to help clients improve model safety. Applicants should demonstrate strong...

Mercor is seeking an AI Safety Practitioner to evaluate AI-generated responses for safety, factual accuracy, policy compliance, and overall quality in a fully remote role. The position offers contract terms and the ability to contribute to cutting-edge AI safety benchmarking. You will review content involving misinformation, political persuasion, self-harm,...

Mercor seeks a bilingual Portuguese Generalist Expert focused on AI safety to write expert-level prompts in Portuguese and apply structured guidelines for classification and escalation. The role requires independent work, strong judgment on sensitive topics, and the ability to document reasoning clearly. The contractor will help evaluate how AI models...

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: AI Safety Practitioner Type: Contract Compensation: $60–$70/hour Location: Remote Role...

TSMG is seeking a dedicated remote professional for a multi-month project to test and evaluate an AI agent during its development stage. You will generate prompts, assess responses, and ensure safety by avoiding harmful outputs. Training is provided online before starting, with a fully remote, full-time arrangement for several months. Fluent Portuguese and...

OLX is seeking a Lead Product Manager for Trust & Safety to own the strategy and end-to-end delivery across markets. You will define detection and prevention of fraud, protect user integrity, and build AI-native safety infrastructure that scales without adding friction for legitimate users. You will partner with Engineering, Data Science, Legal, Compliance,...

Mercor is seeking a Bilingual Portuguese STEM Expert (PhD) for AI safety, delivering expert prompts and annotations in Portuguese. This remote contract role requires high scientific literacy and careful evaluation of model outputs to ensure safe and accurate content. The position offers 20+ hours per week with flexible scheduling. Ideal candidates will hold...