Empregos de braintrust em Porto

Braintrust is seeking a seasoned software engineer to help a top AI lab evaluate and improve large language models through security-focused coding tasks. You will evaluate vulnerabilities, reproduce exploits, verify patches, and create prompts and reference answers; assess model outputs for code generation, debugging and refactoring. Remote contracting with...

Braintrust is seeking an AI Engineer to build and scale conversational agents for a healthcare-focused AI platform. You will design prompt strategies, manage multi-phase workflows, and integrate AI with backend systems, queues, and APIs. You will work on a 4-phase architecture, improve performance, reliability, and costs, and leverage telemetry and testing...

+8 Years of Experience Who We Are Yuno is the AI-native operating system of global commerce, powering the financial infrastructure of enterprise merchants, banks, and wallets. Through a single API, Yuno connects them to pay-ins, payouts, fraud prevention, KYC/KYB, and stablecoins globally, so they can operate everywhere. Agnostic by design and connected to...

Circle is building the world’s leading AI-powered, all-in-one platform for digital businesses. We make it possible for creators, coaches, educators, and businesses to bring together their audience with engaging discussions, live streams, events, chat, courses, and payments — all in one place, all under their own brand. We’re proud to be a fully remote...

Help a top AI lab evaluate and improve large language models through security-focused coding tasks. Bring your software-engineering judgment and hands‑on security experience to work involving vulnerabilities, exploit verification and security patches. This is a contracting engagement, with potential for a longer-term engagement. Remote candidates in the...

Circle is building the world's leading AI-powered, all-in-one platform for digital businesses. We make it possible for creators, coaches, educators, and businesses to bring together their audience with engaging discussions, live streams, events, chat, courses, and payments — all in one place, all under their own brand. We're proud to be a fully remote...

This role is open to candidates in US, Europe, Canada and LATAM** About The Role We are building a healthcare-focused AI platform that automates patient engagement through conversational workflows (SMS and voice). At the core is an LLM-powered chatbot that operates as a multi-phase system combining structured data extraction, reasoning, message generation,...

Seeking a Security Engineer to develop a new Node.Js runtime protection product.This role involves end-to-end ownership of the product, technical strategy, and implementation, focusing on detecting threats without impacting performance or accuracy.

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Lead Engineer, AI Platform based in Germany.This role offers the opportunity to lead the engineering foundation behind reliable, measurable, and scalable AI-powered features. You'll build evaluation frameworks, observability...

About UsCircle is building the world's leading AI-powered, all-in-one platform for digital businesses.We make it possible for creators, coaches, educators, and businesses to bring together their audience with engaging discussions, live streams, events, chat, courses, and payments — all in one place, all under their own brand.We're proud to be a fully...

Please note: this is a short-term projectInterview language: EnglishIn this hourly, remote contractor role, you will work as a CBRN Specialist (SME) to review AI-generated content related to chemical, biological, radiological, and nuclear safety topics and/or create high-quality reference content that supports safe, accurate, policy-aligned AI behavior.You...

SME Careers, a fast-growing AI Data Services company and a subsidiary of SuperAnnotate, is seeking a CBRN Specialist (SME) on an hourly remote contract.You will review AI-generated content related to chemical, biological, radiological, and nuclear safety topics, ensuring accuracy, safety framing, and policy alignment.You will assess outputs for correctness,...