data annotation

Econometrics Instructor (AI Training) About The Role We're looking for experienced econometrics instructors and quantitative economists to help evaluate and improve AI systems trained on economic reasoning and statistical analysis. Your expertise will directly shape how AI understands and explains complex econometric concepts — making a real impact on...

Nursing Informatics Specialist (AI Training) About The Role Your clinical experience is more valuable than you think — beyond the bedside. We're looking for Nursing Informatics Specialists to help evaluate and improve AI systems being developed for healthcare settings. You'll bring real-world nursing knowledge to the table, helping ensure that AI...

Chemistry Expert (AI Training) About The Role What if your years of chemistry training could directly shape how AI reasons through the most complex scientific problems in the world? We're looking for Chemistry Masters and PhDs to design, solve, and evaluate advanced chemistry problems that teach AI to think like a real scientist. This is a fully remote,...

About The Role What if your deep mathematical training could directly shape how AI understands and reasons about rigorous proof? We're looking for Formal Verification Scientists to translate advanced mathematics into machine-verifiable Lean 4 formalizations — working at the very frontier of what proof assistants can express, capture, and automate. This...

Social Media Content Evaluator (Portuguese) Recife RWS - TrainAI / Temporary/Contract / Remote Brazil (work from home) Job Type: Freelance Location: Brazil (work from home) Work Schedule: Part-time - 10+ hours per week. Flexible - work whenever you want. Start Date: Immediately Duration: TBC Rate: 6 USD per hour About the Role In this role, you will play a...

We are looking for Speech AI Evaluation Specialist to support the improvement of AI-generated content in Portuguese (Brazil).   Job Type: Freelance Location: Brazil (work from home) Work Schedule: Part-time - 10+ hours per week. Flexible - work whenever you want. Start Date: Immediately Duration: TBC Rate: 6 USD per hour   Help Shape the Future of...

Physics Subject Matter Expert (AI Training) About The Role We're looking for physics experts in São Paulo and across Brazil to help train and evaluate cutting-edge AI models. Your deep understanding of physics will directly shape how AI reasons through complex problems — from undergraduate mechanics to graduate-level electromagnetism and beyond. This...

About The Role What if your deep expertise in TypeScript could directly influence how AI writes code for millions of developers around the world? We're looking for experienced Frontend TypeScript Engineers in São Paulo and across Brazil to review, evaluate, and guide AI-generated code — helping cutting-edge AI models understand what truly type-safe,...

If you are a biomedical engineer who thrives on technical precision, applied problem-solving, and rigorous engineering reasoning in health and life-science contexts, this is a unique opportunity to contribute directly to how the next generation of AI systems understand and communicate complex biomedical engineering concepts. We are looking for biomedical...

Application Security Analyst (AI Training) About The Role You know how software actually breaks in production. You can tell the difference between a theoretical vulnerability and a genuine exploit path. Now, put that instinct to work on one of the most impactful problems in tech: teaching AI to think like a security expert. At Alignerr, we partner with...

About The Role What if your engineering skills could directly shape the platforms and systems behind the AI revolution? We're looking for Senior Software Engineers in Belo Horizonte to design, build, and scale the infrastructure that powers cutting-edge AI products used by millions of people worldwide. This is high-impact, technically challenging work —...

About The Role We're looking for experienced development economists to help shape the next generation of AI. Your expertise in global economic systems, inequality, and development will directly influence how AI understands and reasons about some of the world's most complex and consequential topics. Development Economist (AI Training) We're looking for...

Clinical Systems Analyst (AI Training) About The Role Your expertise in healthcare IT is more valuable than ever — and not just in hospitals. At Alignerr, we partner with the world's leading AI research labs to build and train cutting-edge AI models, and we need experienced Clinical Systems Analysts to help us get it right. This is a unique opportunity...

Job Type: Contract, Part-time Location: Remote Role Description In this hourly, remote contractor role, you will work as a Copywriting & Content Subject Matter Expert (SME) to review AI-generated marketing/content-writing outputs and/or create expert copy and content, evaluating reasoning quality, intent alignment, and step-by-step writing decisions while...

If you are a chemical engineer who thrives on technical precision, applied problem-solving, and real-world process reasoning, this is a unique opportunity to contribute directly to how the next generation of AI systems understand and communicate complex chemical engineering concepts. We are looking for chemical engineering specialists who can evaluate,...

Job Type: Contract, Part-time Location: Remote Role Description In this hourly, remote contractor role, you will work as a Copywriting & Content Subject Matter Expert (SME) to review AI-generated marketing/content-writing outputs and/or create expert copy and content, evaluating reasoning quality, intent alignment, and step-by-step writing decisions while...

Lean 4 Proof Engineer — Mathematical Formalization About The Role What if your deep mathematical expertise could directly shape how AI understands and reasons about formal proofs? We're looking for mathematicians and formal verification specialists to translate advanced mathematical arguments into machine-verifiable Lean 4 proofs — working at the...

Chemistry Specialist (Masters/PhDs) - AI Training About The Role What if your deep knowledge of chemistry could directly shape how AI reasons through some of the most complex scientific problems in the world? We're looking for Chemistry Specialists — Masters and PhD level — to help train cutting-edge AI models by designing, solving, and evaluating...

Brazilian Portuguese Audio Transcriptionist (AI Training) About the Role What if your sharp ear for spoken Brazilian Portuguese could directly shape how AI understands and processes one of the world's most widely spoken languages? We're looking for detail-oriented transcriptionists based in and around São Paulo to produce accurate, high-quality...

Document AI/IDP Specialist (Remote - Latam) Be among the first 25 applicants. This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Document AI/IDP Specialist in Latin America. In this role, you will leverage AI and intelligent document processing technologies to transform unstructured documents into structured,...